Journal articles: 'Check dam'

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Huzita, Tomohumi, Ryu Noda, and Chihiro Kayo. "Regional Economic Impacts from Timber Check Dam Construction—A Comparison with Concrete Check Dam Construction." Forests 11, no. 10 (October 8, 2020): 1073. http://dx.doi.org/10.3390/f11101073.

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Recently, many mountain disasters caused by natural phenomena, such as typhoons and heavy rains, have struck Japan, where check dams are used as important disaster prevention structures. Meanwhile, increased timber use in Japan is expected to revitalize regional economies, thus drawing attention to the use of timber in check dams. However, comparisons between timber and concrete check dams, in terms of their impact on the regional economy, have been overlooked in previous studies. Therefore, targeting Akita Prefecture in Japan, we evaluated quantitatively the respective regional economic impact of timber and concrete check dam construction through an input–output analysis. An extended input–output table was developed based on the revenue and expenditure data obtained from interviews with check dam construction companies. The construction cost and amount of sediment runoff prevention of a concrete check dam was unified with those of a timber check dam to evaluate their respective economic impact. In both cases, the impact of timber check dam construction was about 12 to 13% larger. In brief, timber check dam construction was found to have a more positive impact on the regional economy than concrete check dam construction. However, with the regional self-sufficiency ratio of the lumber and wood products sector at less than 20%, or the lumber price at 60% of its current price, the economic impact of constructing a timber check dam becomes smaller than that of a concrete check dam. In other words, it is important to harvest, process, and use timber regionally to contribute to the regional economy. Specifically, using timber that is processed, rather than simply harvested, in the region has a larger economic impact on the region. Additionally, in timber check dam construction, procuring inexpensive timber and reducing construction costs may be a trade-off for revitalizing the regional economy.

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Li, Mengqi, Wen Dai, Mengtian Fan, Wei Qian, Xin Yang, Yu Tao, and Chengyi Zhao. "Combining Deep Learning and Hydrological Analysis for Identifying Check Dam Systems from Remote Sensing Images and DEMs in the Yellow River Basin." International Journal of Environmental Research and Public Health 20, no. 5 (March 6, 2023): 4636. http://dx.doi.org/10.3390/ijerph20054636.

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Identifying and extracting check dams is of great significance for soil and water conservation, agricultural management, and ecological assessment. In the Yellow River Basin, the check dam, as a system, generally comprises dam locations and dam-controlled areas. Previous research, however, has focused on dam-controlled areas and has not yet identified all elements of check dam systems. This paper presents a method for automatically identifying check dam systems from digital elevation model (DEM) and remote sensing images. We integrated deep learning and object-based image analysis (OBIA) methods to extract the dam-controlled area’s boundaries, and then extracted the location of the check dam using the hydrological analysis method. A case study in the Jiuyuangou watershed shows that the precision and recall of the proposed dam-controlled area extraction approach are 98.56% and 82.40%, respectively, and the F1 score value is 89.76%. The completeness of the extracted dam locations is 94.51%, and the correctness is 80.77%. The results show that the proposed method performs well in identifying check dam systems and can provide important basic data for the analysis of spatial layout optimization and soil and water loss assessment.

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Zou, Y. H., and X. Q. Chen. "Effectiveness and efficiency of slot-check dam system on debris flow control." Natural Hazards and Earth System Sciences Discussions 3, no. 9 (September 29, 2015): 5777–804. http://dx.doi.org/10.5194/nhessd-3-5777-2015.

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Abstract. Slot-check dam system is commonly used to control sediment transport associated with debris flows and mitigate debris flow hazards. This paper aims to estimate the performance of the slot-check dam system in the field and set up a verification to evaluate the efficiency of a slot-check dam system and each subsystem in debris flow sediment control. Field survey on a group of a series of slot-check dams at Shengou Basin in Yunnan, China reveals that the conserving sediment volume of each dam is related to its relative location in the group, gradually decreasing from upstream to downstream. The cumulative sediment volume within a subsystem of slot-check dams closely related to the characteristics of the catchment controlled by the subsystem. It increases with the controlled catchment area of the most downstream dam in subsystem and the distance from the dam to the upstream most. Evaluation models for the conserving efficiency of a slot-check dam system on debris flow control in a river basin and each subsystem within the group associate to the controlled catchment characteristics have been proposed. The layout principle of a slot-check dam system in a river basin has been developed based on the conserving efficiency of a subsystem of slot-check dams which would allow the slot-check dam system to be designed in a more scientific way.

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Bai, Leichao, Juying Jiao, Nan Wang, and Yulan Chen. "Structural Connectivity of Sediment Affected by Check Dams in Loess Hilly-Gully Region, China." Water 13, no. 19 (September 25, 2021): 2644. http://dx.doi.org/10.3390/w13192644.

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Check dams play an irreplaceable role in soil and water conservation in the Chinese Loess Plateau region. However, there are few analyses on the connection between check dams and the downstream channel and the impact on structural connectivity and sediment interception efficiency. Based on a field survey, this study classified the connection mode between check dams and the downstream channel, and the actual control area percentage by discharge canal in dam land was used to quantitatively evaluate the degree of the structural connectivity of sediment between the check dam and the downstream channel. The analysis results show that the connection mode can be divided into eleven categories with different structural connectivity. The different connection modes and its combination mode of check dams and downstream channels in dam systems have a large difference, and the structural connectivity of the dam system is less than or equal to that of the sum of single check dams in a watershed. The degree of structural connectivity of a dam system will be greatly reduced if there is a main control check dam with no discharge canal in the lower reaches of the watershed. Compared with a single check dam, the structural connectivity of a dam system is reduced by 0–42.38%, with an average of 11.18%. According to the difference in connection mode and structural connectivity of check dams and dam systems in the four typical small watersheds, the optimization methods for connection mode in series, parallel and hybrid dam systems were proposed. The research results can provide a reference for the impact of a check dam on the sediment connectivity and the sediment interception efficiency in a watershed and can also guide the layout of a dam system and the arrangement of drainage facilities.

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Malikhazulkifli, M. F. D., N. A. Yusoff, T. N. Tuan Chik, M. I. Muhamad Sa’ed, and M. A. Yahya. "A Study on Check Dam Design at Peat Soil Area for Peat Fire Management." IOP Conference Series: Earth and Environmental Science 1022, no. 1 (May 1, 2022): 012038. http://dx.doi.org/10.1088/1755-1315/1022/1/012038.

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Abstract In the past decade, incidents of peatland fires have occurred in Malaysia, especially during the prolonged dry weather between February to May and July to October of each year. The canal blocking system or check dam is commonly used to control water tables in peatland. The objectives of this paper are to review the common check dam used for peat fire management. Next to propose a suitable check dam for peat fire management and to prepare a Sketchup model. The case study at Ayer Hitam Forest Reserve (AHFR) is located in the district of Muar, Johor State, with a total area of 3,797 ha. There are four phases in designing a check dam. There are four phases in designing a check dam. Phase I is to review the check dam that have has been produced before. Next, phase II is a design concept for a check dam that is suitable for construction on peatland areas. Phase III, engineering design, involves calculations related to engineering, AutoCAD drawings, and construction price estimates. Phase IV is the last phase to produce a model using a paper model or Sketchup software. In conclusion, the study manages to innovate a check dam for peat fire management at Ayer Hitam, Muar.

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Dashora, Yogita, David Cresswell, Peter Dillon, Basant Maheshwari, Richard Clark, Prahlad Soni, and Pradeep Kumar Singh. "Hydrologic and Cost–Benefit Analysis of Multiple Check Dams in Catchments of Ephemeral Streams, Rajasthan, India." Water 14, no. 15 (July 31, 2022): 2378. http://dx.doi.org/10.3390/w14152378.

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Investment in the small-scale enhancement of groundwater recharge through check dams and other recharge structures in rural India is on the order of USD 1 billion/year. However, for any catchment, the optimal capacity of check dams is unknown, and the impacts on downstream flows are rarely determined. This paper describes a method that can be applied to plan recharge augmentation in catchments that have at least one monitored check dam. It was applied in the Dharta catchment of the Aravalli Hills in Udaipur district, Rajasthan, India, where four check dams in an ephemeral stream were monitored by farmers over seven years. For the last three years of this study, the hydrology of two of these check dams was affected by 19 new check dams established upstream. A basic hydrologic model, WaterCress, was calibrated on monitored check-dam storages and used to assess the impacts of the new structures on recharge from those downstream. Then, the model was rerun with a range of capacities of upstream check dams to determine the effects of check-dam capacity on (1) the recharge from the downstream check dam, (2) the total recharge from all check dams, and (3) the frequency of spill from the downstream check dam. Using the available economic information, the benefit–cost ratio was calculated for a range of check-dam capacities. This showed a decline in economic efficiency with each new check dam and defined the optimal capacity. Monsoon size was found to be consequential to results, and longer hydrological records yield more reliable results. The study showed that monitoring check dams, rainfall, and groundwater levels is key to deciding whether additional check dams are economically beneficial.

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Wu, Heng, Shengdong Cheng, Zhanbin Li, Ganggang Ke, and Hangyu Liu. "Study on Soil Water Infiltration Process and Model Applicability of Check Dams." Water 14, no. 11 (June 4, 2022): 1814. http://dx.doi.org/10.3390/w14111814.

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As the primary ecological construction measure on the Loess Plateau, check dams play an essential role in developing agricultural production, improving people’s production and life, and replenishing groundwater. Soil water infiltration is the most important way to replenish groundwater in the dam land. In order to investigate the water infiltration process of check dams, an empirical model suitable for the simulation of the dam land infiltration process was selected. The soil water infiltration process of the check dam was studied by a field test and a model simulation. The results showed that there were few macropores in the dam, and the water mainly moved downwards in the form of matrix flow. Moreover, the stable infiltration rate of the dam site was low, and its infiltration process could be divided into three stages: rapid infiltration, fluctuating infiltration, and stable infiltration. In addition, the infiltration rate of a non-silted dense layer was 2.4~5 times that of a silted dense layer. The Horton model had a good fitting effect on the water infiltration process of the check dam and thus was suitable for the simulation and prediction of the water infiltration process of the dam. The results can provide a theoretical basis for efficient soil water utilization and infiltration simulation of check dam land.

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Nifen, Silta Yulan, and Afif Dzaky Almy. "KAJIAN STRUKTUR CHECK DAM 3 BATANG HULU KURANJI KOTA PADANG STUDY OF CHECK DAM STRUCTURE 3 BATANG HULU KURANJI PADANG CITY." Ensiklopedia of Journal 3, no. 4 (July 19, 2021): 15–23. http://dx.doi.org/10.33559/eoj.v3i4.770.

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Batang Kuranji is a river located in Kota Padang. The high rainfall and human factors that cause changes in characteristics, especially in the upstream area make the water from the flow of kuranji stems in the rainy season often overflows, and cause flash floods, therefore built Check Dam at the head of the river batang kuranji to prevent the shallowing of the riverbed. Thisresearch aims toreview the structure of the Check Dam 3 building on Batang Kuranji in the city of Padang. This study refers to SNI 2851:2015 with rainfall data for 15 years used from 2005 to 2019, with batu busuk observation station and rice fields obtained from PSDA. Luas DAS is obtained from ArcGIS Applications. Dari hydroligi analysis obtained rainfall plan (R100th) 153,152 m3/dt with Gumbel method, Discharge flood plan for the 100 year anniversary period used Haspers method obtained (Q100th) 165.19 m3/dt. The type of Check Dam that is planned is the type of pelimpah (head work) with a height of Check Dam 8.5 m. Tilt of the body at the upstream 0.6, the distance between the main dam and sub dam 25.2 m, the thickness of the apron floor 1.6 m, with an estimated volume of sediment flow that can be accommodated by 14797.6 m3. The stability of the Check Dam construction was obtained at a value of 3.43 >1.5 and a sliding of 1.53 > 1.5 with a safety coefficient of 1.5, so that the construction of the Check Dam was stable.

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Tang, Honglei, Qihua Ran, and Jihui Gao. "Physics-Based Simulation of Hydrologic Response and Sediment Transport in a Hilly-Gully Catchment with a Check Dam System on the Loess Plateau, China." Water 11, no. 6 (June 2, 2019): 1161. http://dx.doi.org/10.3390/w11061161.

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Check dams are among of the most widespread and effective engineering structures for conserving water and soil in the Loess Plateau since the 1950s, and have significantly modified the local hydrologic responses and landforms. A representative small catchment was chosen as an example to study the influences of check dams. A physics-based distributed model, the Integrated Hydrology Model (InHM), was employed to simulate the impacts of check dam systems considering four scenarios (pre-dam, single-dam, early dam-system, current dam-system). The results showed that check dams significantly alter the water redistribution in the catchment and influence the groundwater table in different periods. It was also shown that gully erosion can be alleviated indirectly due to the formation of the expanding sedimentary areas. The simulated residual deposition heights (Δh) matched reasonably well with the observed values, demonstrating that physics-based simulation can help to better understand the hydrologic impacts as well as predicting changes in sediment transport caused by check dams in the Loess Plateau.

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Huzita, Tomohumi, and Chihiro Kayo. "Regional Economic Impacts from Timber Check Dam Construction—A Comparison with Concrete Check Dam Construction, Part II: The Question of Premium Vouchers." Forests 12, no. 3 (March 15, 2021): 347. http://dx.doi.org/10.3390/f12030347.

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The regional economic impacts of the construction of timber and concrete check dams in Akita prefecture, Japan, were compared. When functions are appropriately unified, a concrete check dam is cheaper to build than a timber one; the difference in construction costs can be used by the government to issue premium vouchers as a regional promotion measure. To evaluate the effect of this, we extended the latest input–output table for Akita Prefecture to include timber and concrete check dam construction sectors. Concrete check dam construction with premium-voucher issuance had a total effect of 46,064,000 yen (economic impact ratio: 1.49; increased employment: 4.68 people). It also had an indirect economic impact on the plywood sector, since plywood was used as formwork, and issuing premium vouchers had a ripple effect on many industries in the region. However, timber check-dam construction had a total effect of 57,706,000 yen (economic impact ratio: 1.86; increased employment: 5.11 people) and a larger effect on the timber, logs, and silviculture sectors. Therefore, despite higher initial costs, timber check dam construction has the greater economic and employment impact on a region through its large ripple effects on the forestry and wood industries.

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Kim, Man-Il, and Namgyun Kim. "Analysis of Debris Flow Reduction Effect of Check Dam Types considering the Mountain Stream Shape: A Case Study of 2016 Debris Flow Hazard in Ulleung-do Island, South Korea." Advances in Civil Engineering 2021 (March 17, 2021): 1–12. http://dx.doi.org/10.1155/2021/8899368.

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Ulleung-do is a volcanic island located 130 km east of the Gangwon-do province of South Korea. It is characterized by steep slopes covered with effusive rocks released from multiple volcanic activities. Having accumulated deep colluvium, Ulleung-do Island manifests a high vulnerability to landslides frequently caused by heavy rains or typhoons, debris flow, rockfall, and other disaster hazards in mountainous areas. Therefore, facilities and residential areas located in the lower areas of the island sustain widespread damage. Hence, the installation of check dams designed to reflect the area’s local conditions is required to avoid further damage. In line with that, this study analyzes the disaster cases in Ulleung-do’s mountain areas and the effect of check dams in debris flow reduction for each type using the KANAKO-2D model. At observation point 1, the result shows that the maximum rate of debris flow is reduced by 48.5% with an open-type check dam installed and 62.9% with a closed-type check dam installed from the level without a check dam. For observation point 2, the maximum flow depth decreases by 49.7% with an open-type check dam and 77.4% with a closed-type check dam. Thus, this study suggests that the simple installation of check dams in a mountain stream that has experienced debris flow effectively mitigates damage brought by various disasters.

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Wang, X., A. Huo, and Z. Zhao. "Research on mechanism of gully consolidation and check dam efficiency in reducing erosion based on GeoWEPP model in Yangjiagou Watershed." IOP Conference Series: Earth and Environmental Science 1143, no. 1 (February 1, 2023): 012012. http://dx.doi.org/10.1088/1755-1315/1143/1/012012.

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Abstract Soil erosion is an crucial problem faced by ecological management in the world today. As a part of “Gully Consolidation and Highland Protection (GCHP)” project, check dam plays an important role. In this study, the applicability of GeoWEPP model in typical small watersheds of the Loess Plateau was evaluated, and the erosion and sediment production of check dams under the time scale scenarios of 10, 20, 50 and 100 years were simulated to study the response of hydraulic erosion to check dam. The results show that the relative error δ between the runoff data generated by GeoWEPP simulation and the measured data is less than 15%, the correlation coefficient γ is greater than 0.994, and the Nash efficiency coefficient NSE is greater than 0.98, indicating that the model has good applicability. And the results show that with the increase of time, the effect of the check dam in controlling soil erosion has declined. Under the condition that other parameters remain unchanged, the sediment yield changes little in the first 10 or even 20 years after the construction of the check dam. After 50 years, sediment yield increased significantly, and the role played by the silt dam was significantly weakened. This study is of great significance for reducing soil erosion and promoting the sustainable development of the Loess Plateau.

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Nagayama, Shigeya, Nobuo Ishiyama, Taro Seno, Hideyuki Kawai, Yoichi Kawaguchi, Daisuke Nakano, and Futoshi Nakamura. "Time Series Changes in Fish Assemblages and Habitat Structures Caused by Partial Check Dam Removal." Water 12, no. 12 (November 30, 2020): 3357. http://dx.doi.org/10.3390/w12123357.

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Despite a steep increase in dam removal projects, there are few studies on the biophysical responses to dam removal. In this study, we evaluated the short-term (1.5 years) and long-term (5.5 years) effects of partial check dam removal on fish assemblages and their habitats. First, the habitat preferences of fish were examined at a channel unit scale: pools, rapids, and side channels satisfied the seasonal habitat requirements of the fish assemblages. Partial check dam removal increased the abundance of these habitats and diversified the habitat structures owing to the sediment release from the dam; in contrast, the bedrock distinctly decreased 1.5 years after dam removal. However, 5.5 years after dam removal, the bedrock proportion increased, and the habitat structures were simplified again owing to the re-transportation of sediments. Similar temporal changes were also determined through a reach-scale analysis with a change in the bed materials. Anadromous Oncorhynchus masou began to spawn and recolonize in the upstream section of the dam after the dam removal, causing similar assemblage compositions between the downstream and upstream sections. The abundance of Salvelinus malma and Noemacheilus barbatulus toni in the upstream reaches decreased over time after the dam removal. The temporal changes in the biophysical responses suggest that long-term monitoring is indispensable for the reliable evaluation of dam removal effects.

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Wulandari, Dyah Ari, Desyta Ulfiana, and Priyo Nugroho Parmantoro. "Analysis of Application of Sediment Trap in Rivers as An Effort Reservoir Sedimentation Control." MEDIA KOMUNIKASI TEKNIK SIPIL 26, no. 2 (February 2, 2021): 229–36. http://dx.doi.org/10.14710/mkts.v26i2.28691.

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Reservoir sedimentation can be overcome by reducing the amount of sediment that enters the reservoir, by building check dam. The check dam has more deposited coarse sediment load than fine sediment load. Fine sediment that escapes the check dam will flow further and eventually enter the reservoir pond. Therefore it is necessary to build a building that can capture fine sediments. Construction is planned as a system of sediment trap in irrigation channels. The purpose of this study is to analyze the possibility of applying the sediment trap in the river to deposit sediments that escape the check dam. The analysis begins with the selection of the location of the sediment trap, then calculate the dimensions of the sediment trap and the amount of sediment that has settled. Based on the analysis of the selected dimensions with several combinations of gradation of sediment grains, sediment deposition that occurs ranges from 42 - 68%. So it can be concluded making the sediment trap in the river can be done. However, for the application of these sediment traps further research is needed regarding the dimensions of sediment traps that are most optimal for sediment deposition.

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Yao, Yufei, Jinxi Song, and Xiaorong Wei. "The fate of carbon in check dam sediments." Earth-Science Reviews 224 (January 2022): 103889. http://dx.doi.org/10.1016/j.earscirev.2021.103889.

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Reese, Kelsey M. "Check dam agriculture on the mesa verde cuesta." Journal of Archaeological Science: Reports 31 (June 2020): 102372. http://dx.doi.org/10.1016/j.jasrep.2020.102372.

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Yuan, Shuilong, Zhanbin Li, Peng Li, Guoce Xu, Haidong Gao, Lie Xiao, Feichao Wang, and Tian Wang. "Influence of Check Dams on Flood and Erosion Dynamic Processes of a Small Watershed in the Loss Plateau." Water 11, no. 4 (April 19, 2019): 834. http://dx.doi.org/10.3390/w11040834.

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As an important soil and water conservation engineering measure, check dams have been constructed on a large scale in the Loess Plateau of China. However, their effects on runoff and sediment processes in the basin are still unclear. In this study, the hydrodynamic processes of the Wangmaogou watershed located in the Loess Plateau were simulated, and the influence of check dams on the flood and erosion dynamic processes in this watershed were also evaluated. The results showed that the check dams obviously reduced the flood peak and flood volume and mitigated the flood process. After the dam system was completed, the flood peak and flood volume were reduced by 65.34% and 58.67%, respectively. The erosion dynamic distribution of the main channel in the small watershed was changed to different extents by the different dam type combinations, and the erosion dynamic parameters of the channel decreased most after the dam system was completed, when the velocity and runoff shear stress of the outlet section were reduced by 10.69% and 31.08%, respectively. Additionally, the benefits of sediment reduction were most obvious after the check dam system was completed, with the sediment discharge in the watershed being reduced by 83.92%. The results of this study would provide specific implications for construction and management of check dams in the Loess plateau.

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Katsuki, Satoshi, Kazuo Itoh, Nobutaka Ishikawa, and Souhei Abe. "Safety check method of steel frame check dam by elastic-plastic reliability analysis." Doboku Gakkai Ronbunshu, no. 531 (1996): 65–76. http://dx.doi.org/10.2208/jscej.1996.531_65.

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Nie, Lei, Li Na Xu, and Yan Xin Yu. "Evaluation and Governance Design of Risk Factor of Debris Flow on Gunmaling." Applied Mechanics and Materials 90-93 (September 2011): 3151–54. http://dx.doi.org/10.4028/www.scientific.net/amm.90-93.3151.

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Abstract: It is analyzed and obtained the result that the debris flow is currently in mature stage with medium risk and high occurrence through the gray correlation method of fractal research and effect measure of debris flow gully. Therefore, it is necessary to take corresponding governance measures. In this article, check dam is used as main preventive engineering measures to set up two check dams in the passing area of debris flow, with total capacity about 2800m3 and design reservoir capacity of flood once per 50 years. Construction of the check dam will effectively reduce risk of debris flow.

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Lee, Jin Ho, Suk Woo Kim, Kwang Youn Lee, Kun Woo Chun, and Hyun Seok Bae. "Analysis of Factors Affecting Damage of the Concrete Check Dams Based on the Exterior Condition Assessment." Crisis and Emergency Management: Theory and Praxis 17, no. 8 (August 31, 2021): 59–72. http://dx.doi.org/10.14251/crisisonomy.2021.17.8.59.

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This study assesses the exterior condition of concrete check dams and analyses the factors such as the watershed area, check dam length, deposit length, and elapsed years which can affect the damage of concrete check dams. After the survey of 426 concrete check dams built in Gangwon province, we found that although all the factors have statistical significance, the elapsed year of construction is most closely related to the condition of the dams. In other words, the elapsed year is the most influential factor among the analysed ones; the watershed area(R=-0.121, p<0.05), dam length(R=-0.183, p<0.01), deposit length(R=-0.274, p<0.05), and elapsed years(R=-0.852, p<0.01). In addition, it is considered that the detailed inspection cycle of dams can be set as 15 years after construction because the assessing point less than 2.5 which indicates the need of urgent repair and reinforcement starts to appear after 15 years of construction. Since this study is limited to impermeable concrete dams, the supplementary research on dam types and materials is required.

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Nikolova, Valentina, and Asparuh Kamburov. "Geoinformation technologies in the evaluation of short-term geomorphic change: An example of Damdere debris flood area (Bulgaria)." Journal of the Geographical Institute Jovan Cvijic, SASA 72, no. 2 (2022): 133–45. http://dx.doi.org/10.2298/ijgi2202133n.

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A debris flood is a hazardous hydrogeomorphic process that can change the topographic surface in a short time due to a high streamflow and a large volume of sediment transport. Large areas of the Eastern Rhodopes Mountains (Bulgaria) are susceptible to erosion, debris flows, and debris floods due to loose earth masses, rare vegetation, and alternating dry and wet periods with extreme rainfall. The study area is located in the lower part of the river Damdere catchment and covers the area around the check dam. Studying the geomorphic changes of the debris flood areas can provide information about the behavior of the event, and contribute to the development of mitigation measures. In the current research, the data are obtained using terrestrial laser scanning (TLS) during two campaigns (in October 2019 and August 2021). After processing the raw TLS data, two pairs of ground point clouds have been obtained- for the area immediately before the check dam and for the one after the dam. To evaluate the changes in the topographic surface, two approaches are applied: (1) measuring the distance between the successive point clouds (M3C2 algorithm) and (2) measuring the differences between the digital terrain models in geographic information system environment (DoD method). Both approaches have shown similar results and indicated active hydrogeomorphic processes. The relatively large volume of deposition after the check dam is an indicator for the decrease in the retaining capacity of the check dam, which is a prerequisite for the increase of a flood risk.

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Rahmawati, Rahmawati. "KAJIAN PENEMPATAN LOKASI BANGUNAN PENGENDALI SEDIMEN (CHECK DAM) DAS TAPIN." Teknika 16, no. 2 (December 30, 2021): 64. http://dx.doi.org/10.26623/teknika.v16i2.4043.

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Sediment is material that is carried away and moves in the direction from flow of river water and settle downstream of a watershed. Changes in land use in the upstream watershed have the potential to increase sediment. Then, the increase in population will be proportional to the increasing need for land both for settlement and agriculture so that forest land will be looted and increase sedimentation. To overcome these problems, it is necessary to study the placement of sediment control buildings or check dams. Sedimentation is influenced by the amount of erosion. Erosion and sedimentation analysis were analyzed using Arc SWAT and from the results of the erosion analysis in the Tapin watershed, the average heavy class is less than 180 tons. Changes in sedimentation value from the dam plan to the present are 1.6 mm/yr until 1.8 mm/yr. Analysis used for selection of check dam locations is AHP (Analytical Hierarchy Process) Expert Choice. From the analysis of the selection of priority check dam locations Sub Watershed 1. The design flood discharge analysis for Q 50 years that uses ITB-2 method is 41.34 m3/second. The hydraulic aspect of the check dam in Sub watershed 1 is adjusted to the existing cross section of the river and prevous analysis, the results of analysis of sediment inflow are 6.592,05 m3/year and storage capacity is 49.132,00 m3, namely the building height is 3.75 meters.

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Wang, Guo Zhong, Jian Gang Qu, Rui Shuang, Ling Wang, and Sui Ye Zhang. "Mechanism of Siltation on Check Dam in West of Henan Province." Advanced Materials Research 610-613 (December 2012): 1853–58. http://dx.doi.org/10.4028/www.scientific.net/amr.610-613.1853.

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To explore the deposition mechanism of check dam and provide the basis for layout of dam system, with tracing technology of caesium-137 and local rainfall data, the siltation time of each cyclic in the profile of south ditch check dam are confirmed based on the rule of heavy rain on large sand. Then regression analysis of sediment volume with the four indexes of erosive rainfall (R, I30, P and I) are made, the results show the first three indicators are main factors causing soil erosion. Furthermore, the model predicting sediment yield of the watershed is made by multiple regression analysis of sediment deposition with the three main factors. Finally, the neural network of RBF and BP are respectively applied regarding the three main indexes as input vectors to predict siltation and fit with actual value to testify what the model built is right.

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Zhang, Zeyu, Junrui Chai, Shuilong Yuan, Zhanbin Li, and Zengguang Xu. "Simulation of Rainfall-Runoff Process in a Catchment with a Check-Dam System Equipped with a Perforated Riser Principal Spillway on the Loess Plateau of China." Water 13, no. 17 (September 6, 2021): 2450. http://dx.doi.org/10.3390/w13172450.

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Check dams are applied worldwide as an effective approach for soil and water conservation. To improve the simulation accuracy of the hydrological processes in a catchment with a check-dam system, this study analyzed the applicability and accuracy of a formula for the drainage process of a perforated riser principal spillway based on observational experiments. The rainfall-runoff processes in a catchment with a check-dam system were also simulated with the recommended formulas for the drainage process of a perforated riser principal spillway. The deviations in the calculated discharge from the observed values of the experiment with the recommended formulas under normal and abnormal working conditions were within ±15% and ±5%, respectively. The hydrologic model used in this study needed only a few parameters to achieve a satisfactory simulation accuracy. The recommended formulas for the drainage process of a perforated riser principal spillway can improve the simulation accuracy of a flood peak by 7.42% and 19.58% compared with the accuracies of the technical code formula scenario and no drainage scenario, respectively. The results of this study are expected to provide a reference for flood warnings and safe operations of check-dam systems.

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Galia, Tomáš, Václav Škarpich, and Stanislav Ruman. "Impact of check dam series on coarse sediment connectivity." Geomorphology 377 (March 2021): 107595. http://dx.doi.org/10.1016/j.geomorph.2021.107595.

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KOKUBUN, Mikako, Natuko TANAKA, Yui SAKAE, Ryouta KAKETANI, Yoshikazu NOZAWA, Takumi MURATU, Hideki TAKIZAWA, Izumi KOSAKA, and Kazutoki ABE. "Influence on aquatic insects caused by check dam construction." Journal of the Japanese Society of Revegetation Technology 41, no. 1 (2015): 271–74. http://dx.doi.org/10.7211/jjsrt.41.271.

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Armanini, Aronne, and Michele Larcher. "Rational Criterion for Designing Opening of Slit-Check Dam." Journal of Hydraulic Engineering 127, no. 2 (February 2001): 94–104. http://dx.doi.org/10.1061/(asce)0733-9429(2001)127:2(94).

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Jiang, X. G., F. W. Liu, K. H. Hu, T. Liu, H. J. Wang, L. Li, S. Y. Zheng, Y. Chen, S. J. Song, and Y. D. Wang. "Impact characteristics of gustiness debris flow on check dam." IOP Conference Series: Materials Science and Engineering 657 (October 25, 2019): 012013. http://dx.doi.org/10.1088/1757-899x/657/1/012013.

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29

Tseng, Wen-Hsiao, Hsiao-Wen Wang, Shih-Chieh Chou, Yu-Lin Kao, and Chjeng-Lun Shieh. "Experiments on channel evolution caused by check-dam failure." Journal of Mountain Science 9, no. 2 (March 21, 2012): 175–84. http://dx.doi.org/10.1007/s11629-012-2252-6.

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30

Kang, Jihoon, Melanie M. McCaleb, and Richard A. McLaughlin. "Check dam and polyacrylamide performance under simulated stormwater runoff." Journal of Environmental Management 129 (November 2013): 593–98. http://dx.doi.org/10.1016/j.jenvman.2013.08.023.

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31

De Michele, C., G. Salvadori, M. Canossi, A. Petaccia, and R. Rosso. "Bivariate Statistical Approach to Check Adequacy of Dam Spillway." Journal of Hydrologic Engineering 10, no. 1 (January 2005): 50–57. http://dx.doi.org/10.1061/(asce)1084-0699(2005)10:1(50).

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32

Al-Janabi, Ahmed Mohammed Sami, Abdul Halim Ghazali, Badronnisa Yusuf, Saad Sh Sammen, Haitham Abdulmohsin Afan, Nadhir Al-Ansari, Shamsuddin Shahid, and Zaher Mundher Yaseen. "Optimizing Height and Spacing of Check Dam Systems for Better Grassed Channel Infiltration Capacity." Applied Sciences 10, no. 11 (May 28, 2020): 3725. http://dx.doi.org/10.3390/app10113725.

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The check dams in grassed stormwater channels enhance infiltration capacity by temporarily blocking water flow. However, the design properties of check dams, such as their height and spacing, have a significant influence on the flow regime in grassed stormwater channels and thus channel infiltration capacity. In this study, a mass-balance method was applied to a grassed channel model to investigate the effects of height and spacing of check dams on channel infiltration capacity. Moreover, an empirical infiltration model was derived by improving the modified Kostiakov model for reliable estimation of infiltration capacity of a grassed stormwater channel due to check dams from four hydraulic parameters of channels, namely, the water level, channel base width, channel side slope, and flow velocity. The result revealed that channel infiltration was increased from 12% to 20% with the increase of check dam height from 10 to 20 cm. However, the infiltration was found to decrease from 20% to 19% when a 20 cm height check dam spacing was increased from 10 to 30 m. These results indicate the effectiveness of increasing height of check dams for maximizing the infiltration capacity of grassed stormwater channels and reduction of runoff volume.

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33

Gao, Yayu, Xiaoyou Zhang, Xinmin Zhang, Duan Li, Min Yang, Hua Rongxiang, and Jinhua Tian. "Building check dams systems to achieve water resource efficiency: modelling to maximize water and ecosystem conservation benefits." Hydrology Research 51, no. 6 (October 28, 2020): 1409–36. http://dx.doi.org/10.2166/nh.2020.069.

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Abstract Among the most widespread structures for successfully retaining water and checking erosion on the semi-arid portions of China's Loess Plateau, check dams retain silt at slower than projected rates, leading to flood control issues. Meanwhile, the shortage and the uneven distribution of time and space of water resources in semi-arid areas can easily cause droughts and floods, which seriously restricted the rapid development of the socioeconomic. However, some of the high-quality rain and flood resources accumulated in the check dams can be used to alleviate part of the water resources crisis instead of causing flood. With the goal of holistically maximizing a projected check dam array's water resource, ecosystem and socioeconomic benefits, a Check Dam Benefit Maximization Model (CDBMM) was first developed. The CDBMM was first applied to the Si Jiagou Basin, and the model showed the total costs represent 7.07% of the total and rather significant benefits. Water resources benefits accounting for 45.40% of the total benefits, indicating that the water resources benefits were substantial and should be considered as the main influencing factors in the basin's ecosystem-friendly design and construction. Use of the CDBMM in watershed planning will allow a more efficient use of water and soil resources and greatly alleviate water crises in the semi-arid area. It can further provide a reference for both check dam system planning and the system benefits analysis.

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34

Horiguchi, Toshiyuki, and Yoshiharu Komatsu. "Method to evaluate the effect of inclination angle of steel open-type check dam on debris flow impact load." International Journal of Protective Structures 10, no. 1 (August 6, 2018): 95–115. http://dx.doi.org/10.1177/2041419618789702.

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Although the latest statistics indicate a decrease in the number of victims of natural disasters in Japan, the number of sediment disasters has increased. A countermeasure against natural disasters is provided by the installation of a steel open-type check dam (hereafter, open Sabo dam). The open Sabo dam is expected to capture boulders (more than 1.0 m in diameter) contained in debris flow of which boulders concentrate in front part. When a debris flow impacts an open Sabo dam, the large impact load on the steel pipes are caused by the impact of boulders under debris flow. Therefore, it is important to evaluate the impact of both boulders and the following soil and small gravels including fluid force of the open Sabo dam from the design point of view. Although an open Sabo dam has various shapes especially, the every open Sabo dams is evaluated by the same design method in Japan. It is necessary to propose the load evaluation method in the experiment scale in contrast with different shape of open Sabo dam. This article presents an experimental approach to determine the effect of the front inclination angle of steel open Sabo dams on the impact load. The debris flow impacts 1/40 scale models of steel open Sabo dams which are set in a flow channel flume, and the debris flow load is measured by using three load cells placed horizontally at the back of the Sabo dam model. Different front inclination angles are set for each Sabo dam models. The time history of the impact load is examined by comparing the loads corresponding to four kinds of dams, which are different from the front inclination angles, and decrease of impact load considering the buffering effect of driftwoods in debris flow.

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35

Castillo, C., R. Pérez, and J. A. Gómez. "A conceptual model of check dam hydraulics for gully control." Hydrology and Earth System Sciences Discussions 10, no. 9 (September 30, 2013): 11901–41. http://dx.doi.org/10.5194/hessd-10-11901-2013.

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Abstract. There is little information in scientific literature regarding the modifications induced by check dam systems in flow regimes in restored gully reaches, despite it being a crucial issue for the design of conservation measures. Here, we develop a conceptual model to classify flow regimes in straight rectangular channels for initial and dam-filling conditions as well as a method of estimating efficiency in order to provide guidelines for optimal design. The model integrates several previous mathematical approaches for assessing the main processes involved (hydraulic jump HJ, impact flow, gradually varied flows). Its performance was compared with the simulations obtained from IBER, a bi-dimensional hydrodynamic model. The impact of check dam spacing (defined by the geometric factor of influence c) on efficiency was explored. Eleven main classifications of flow regimes were identified depending on the element and level of influence. The model produced similar results when compared with IBER, but led to higher estimations of HJ and impact lengths. Total influence guaranteed maximum efficiency and HJ control defining the location of the optimal c. Geometric total influence (c = 1) was a valid criterion for the different stages of the structures in a wide range of situations provided that hydraulic roughness conditions remained high within the gully, e.g. through revegetation. Our total influence criterion involved shorter spacing than that habitually recommended in technical manuals for restoration, but was in line with those values found in spontaneous and stable step-pools systems, which might serve as a reference for man-made interventions.

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36

Tang, Honglei, Hailong Pan, and Qihua Ran. "Impacts of Filled Check Dams with Different Deployment Strategies on the Flood and Sediment Transport Processes in a Loess Plateau Catchment." Water 12, no. 5 (May 7, 2020): 1319. http://dx.doi.org/10.3390/w12051319.

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As one of the most widespread engineering structures for conserving water and soil, check dams have significantly modified the local landform and hydrologic responses. However, the influences of sedimentary lands caused by filled up check dams on the runoff and sediment transport processes were seldom studied. Employing an integrated hydrologic-response and sediment transport model, this study investigated the influences of filled check dams with different deployment strategies in a Loess Plateau catchment. Six hypothetical deployment strategies of check dams were compared with no-dam scenario and the reality scenario. Results showed that filled check dams were still able to reduce Flood peak (Qp) by 31% to 93% under different deployment strategies. Considerable delays of peak time and decreases were also found in scenarios, which were characterized as having larger and more connective sedimentary lands on the main channel. Reduction rates of Sediment yield (SY) and the total mass of Eroded sediment (ES) ranged from 4% to 52% and 2% to 16%, respectively, indicating that proper distributions of check dams can promote sediment deposition in the channel and reduce soil erosion. The results of this study indicate that (1) check dam systems could still be useful in flood attenuation and sediment control even when they were filled, and (2) optimizing the deployment strategies of check dams can help reduce erosion.

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BOHARA, Naoki, Takeshi SAKUDA, Satoshi KATSUKI, and Joji SHIMA. "OPTIMAL DESIGN OF STEEL CHECK DAM USING PARTICLE SWARM OPTIMIZATION." Doboku Gakkai Ronbunshuu A 62, no. 3 (2006): 681–92. http://dx.doi.org/10.2208/jsceja.62.681.

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38

Li, Shuai, Yong You, Xiaoqing Chen, Jinfeng Liu, and Jiangang Chen. "Regulation effectiveness of a window-check dam on debris flows." Engineering Geology 253 (April 2019): 205–13. http://dx.doi.org/10.1016/j.enggeo.2019.03.020.

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39

Wibisono, Gunawan. "PENYUSUNAN RENCANA PELAKSANAAN PEKERJAAN BRANTAS RIVER CHECK DAM 10 (BRCD-10) KOTA BATU MALANG." PROKONS Jurusan Teknik Sipil 7, no. 2 (August 31, 2013): 147. http://dx.doi.org/10.33795/prokons.v7i2.47.

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Uncertain seasonal changes lately, causing a lot of flooding, especially in the Brantas River Basin, causing several volcanoes in the upper reaches of the Brantas River are also often carries sediment in case of floods or heavy rain, one of these volcanoes are Arjuno Mount, many of carrying materials sedimentation. One way that can be used to reduce and control the sediment, along the Brantas River by building Sabo Dam. Sabo Dam construction plan targets not only in the upper Brantas River, but also in downstream areas of the Brantas River. Sabo Dam construction by the Contractor with Grade 7 is expected to be completed in accordance with the planning purpose, because the good planning and direction will be able to save time, costs and problems (risks) that will bring the work to the activities of its main objectives, namely the right time, right cost and right quality. Implementation work methods to used for complete the development work Sabo Dam is coffering which planned uses "Phase Half-Span", which spans half a dodger and the other half worked for the evader landscape flow. The cost of implementing the budget obtained after analysis is Rp. 5,212,063,817.11 to the difference obtained Rp. 342,856,956.89 or 6,172 % from the value of the contract, the implementation quality of existing jobs on Sabo Dam work has been largely in accordance with the technical specifications have been prepared. Deviations occur, the laying material (aggregates and sand) that is not clean, while the implementation of existing K3 is in conformity with the regulations to be referenced by the Contractor in the preparation of safety plan, only for the application to use the APD is not yet implemented. Keywords: project planning, sabo dams, check dams, waterworks

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40

Harjono, Harjono, and Yulis Widhiastuti. "PERENCANAAN KONSTRUKSI PENGENDALI SEDIMEN (CHEKDAM) DI HILIR KALI PACAL BOJONEGORO." Jurnal Pengembangan Rekayasa dan Teknologi 14, no. 2 (January 21, 2019): 28. http://dx.doi.org/10.26623/jprt.v14i2.1224.

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Meeting the needs and maintaining the availability of water is an effort where a situation where the area is usually not run by water such as settlements, industrial areas, and other public facilities. This situation is considered to be detrimental to both morally and materially, the impact of which will directly be felt by humans. Therefore humans must balance between needs and natural conditions.Please note that the Klepek Dam is one of the buildings that functions as a water reservoir after the Pacal Reservoir for irrigation needs in the rice fields. To realize the success of quality Dam buildings and able to function as planned, it is needed by making check dam using concrete consumption.From studies and calculations that have been done using software, AutoCad, and Harpes calculation methods, it is known the impact of flood discharge and cross section in the Lusi watershed to determine whether or not the cross section of the Pacal Reservoir is necessary. The problem of holding water in the Pacal Reservoir is overcome by making check dam using concrete consumption

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41

Utomo, Karuniadi Satrijo, and Hanggoro Tri Cahyo. "Aspek-aspek Hidraulik Keruntuhan Bangunan Pengendali Sedimen Kedung Ringin." Dinamika Rekayasa 16, no. 2 (July 23, 2020): 113. http://dx.doi.org/10.20884/1.dr.2020.16.2.283.

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Keruntuhan bangunan hidraulik check dam merupakan suatu fenomena keruntuhan bangunan hidraulik yang penting dikaji, khususnya ditinjau dari aspek-aspek hidraulik yang menyebabkan keruntuhan bangunan. Kajian keruntuhan bangunan Check dam dalam artikel ini mengambil kasus fenomena keruntuhan Bangunan Pengendali Sedimen (BPS) Kedung Ringin di wilayah Kabupaten Kebumen Provinsi Jawa Tengah Indonesia. Hasil-hasil penelitian menunjukkan bahwa keruntuhan bangunan tersebut dipicu sufosi dan boiling oleh rembesan di bawah spillway. Perbaikan keruntuhan bangunan tersebut harus dilakukan dengan mengganti seluruh bagian spillway dengan memasang material baru disertai pengawasan lebih ketat dalam pekerjaan pelaksanaan mengacu pada spesifikasi teknis yang ditetapkan. Diperlukan pula pemasangan turap di bawah spillway baru minimal sepanjang 4 m dari dasar spillway untuk mengantisipasi terjadinya sufosi di masa datang

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42

Abraham, Marykutty, and S. Mohan. "Effectiveness of check dam and percolation pond with percolation wells for artificial groundwater recharge using groundwater models." Water Supply 19, no. 7 (June 24, 2019): 2107–15. http://dx.doi.org/10.2166/ws.2019.091.

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Abstract Population growth and higher living standards have resulted in ever-increasing demand for water. For the present study natural recharge was computed from a water balance model and daily water level fluctuations were measured to study the increase in water level due to artificial recharge. Numerical models were developed using MODFLOW to analyze the feasibility of different artificial recharge arrangements such as check dam and percolation pond with percolation wells individually and in combination and evaluate the effectiveness of the structures in recharging the aquifer. The maximum increase in water level was found to be 3.46 m, 2.54 m and 4.7 m respectively for the check dam, percolation pond with three percolation wells and combined structure arrangement after 2 years of artificial recharge. The zone of influence was obtained as 400 m, 600 m and 500 m respectively for the check dam, percolation pond and combined structure system. Water level fluctuations also proved the same. Water level increase obtained from the natural recharge study was only of the order of 0.2 m. Artificial recharge is found to be very effective for sustainable development of water resources and the percolation pond was found to be the most appropriate structure for groundwater recharge for the study area.

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43

RAKHECHA, P. R., A. K. A. K. KULKARNI A. K. KULKARNI, B. N. MANDAL, R. B. SANGAM, and N. R. DESHPANDE. "Probable maximum precipitation for the catchment of Koyna dam." MAUSAM 49, no. 2 (December 16, 2021): 211–16. http://dx.doi.org/10.54302/mausam.v49i2.3620.

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Estimates of Probable Maximum Precipitation (PMP) for different durations were made for the catchment above Koyna dam on the Koyna river. The catchment spans an area of 892 km2 and the PMP estimates were made for a range of durations of 1 to 3 days. The PMP estimates for Koyna dam were found to be 48, 87 and 117 cm by the physical method and 54, 89 and 124 cm by statistical method for 1, 2 and 3 day respectively. These estimates can be used to check the existing spillway design flood of Koyna dam.

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44

Eu, Song, Chang-Woo Lee, Junpyo Seo, and Choongshik Woo. "Analyzing the Effect of Check Dam in Debris Flow Hazard Map Using Random Walk Model." Crisis and Emergency Management: Theory and Praxis 17, no. 9 (September 30, 2021): 91–103. http://dx.doi.org/10.14251/crisisonomy.2021.17.9.91.

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Debris flow transports lots of sediments downstream that cause damage to human lives and properties. The accurate estimation of the debris flow hazard zone is a critical factor of the successful early-warning and evacuation for reducing the debris flow risk. Korea Forest Service has developed a debris flow hazard map using Random Walk Model (RWM). Meanwhile, because check dams in forest watersheds capture discharged debris, the effect of check dams should be considered for mapping the debris flow hazard zone. This study analyzed the effect of check dams on debris flow discharge using RWM with the check dam module. As a result, RWM seems to simulate the sediment capture by check dams. However, the total deposit areas were not significantly different despite the effect of check dams because of input parameters and the flow direction calculation algorithm of RWM. Further studies on appropriate spatial resolution and initial sediment volume should be conducted to improve the debris flow hazard map.

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45

Itsukushima, Rei, Kazuaki Ohtsuki, Tatsuro Sato, Yuichi Kano, Hiroshi Takata, and Hiroaki Yoshikawa. "Effects of Sediment Released from a Check Dam on Sediment Deposits and Fish and Macroinvertebrate Communities in a Small Stream." Water 11, no. 4 (April 6, 2019): 716. http://dx.doi.org/10.3390/w11040716.

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Dam removal is typically intended for river restoration or as a countermeasure for aging dams. The influence of dam removal has mainly been studied in large rivers. This study is intended to investigate the influence of the sediment supplied after opening a check dam drain in a small steep stream to contribute to the establishment of sediment release technology form check dam by accumulating the basic knowledge about the influence of sediment release. Deposited sediment in the impoundment was rapidly discharged immediately after opening the drain outlet, and a moderate sediment discharge followed. The water course of the sediments deposited by repeated channel widening and riverbed degradation tended to stop longitudinal topographic changes from downstream. In addition, the turbidity during a flood was high in the first year and tended to decrease in the second year. As for the ecosystem response, changes in the benthic macroinvertebrate community were confirmed in downstream sites, and net-spinning species especially deceased immediately after the sediment supply began. Our monitoring results suggest that the increasing turbidity was suppressed during the flood because sediment release was conducted from the small-scale facility. As a result, a negative impact on the aquatic ecosystem seemed to be reduced.

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46

Yang, Lu, Dong Bo Liu, and Zhi Kun Wang. "Numerical Simulation Studies of the Gravity Dam of Magnesia Concrete." Applied Mechanics and Materials 501-504 (January 2014): 1973–76. http://dx.doi.org/10.4028/www.scientific.net/amm.501-504.1973.

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The adding of magnesia expanding agent can effectively control the generation of concrete dam fissure, and can play the effect of simplifying the temperature control measure , shortening the time limit of the project , improving the economic benefits and so on . This study will use the Abaqus CAE software to analyze the gravity dam of magnesia concrete . Check the features of magnesia concrete by comparing the adding one and the no adding one , and summarize the results of the numerical value simulation and compile the software to provide the theoretical basis for the numerical value simulation of magnesia concrete dam.

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47

Nikic, Zoran, Ratko Ristic, Nenad Maric, Vukasin Milcanovic, Sinisa Polovina, and Ivan Malusevic. "Function of check dam aggradation in local water supply of mountainous areas." Bulletin of the Faculty of Forestry, no. 120 (2019): 117–30. http://dx.doi.org/10.2298/gsf1920117n.

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Check dams are built to control erosion processes and torrential floods. In Serbia, legally binding documents, VOS (2002) and PPRS (2010), provide the concept for the water supply of the population and industry by regional systems for which water is provided by building high dams and formation of reservoirs. With this concept, it is often not possible to meet the needs of local communities in mountainous areas. In order to contribute to solving the water supply problems of these mostly poor villages, research was conducted on the possibility of using check dam aggradation groundwater for this purpose. Field investigations and analysis of project documentation for numerous check dams and aggradations in Serbia were carried out. Potential quantities and quality of groundwater in the aggradations were analyzed as a resource for the water supply of the population. The results of the research indicate very favorable possibilities of the aggradations for the accumulation of groundwater in the form of unconfined or phreatic aquifer with a free water table, in quantities that can be used for water supply. It was stated that: 1) under favorable conditions, with check dams on watercourses with constant flow and large-scale aggradations, there is a possibility of accumulating sufficient quantities of groundwater as a resource for water supply, 2) improving the quality of infiltrated waters by the process of filtration through intergranular porous media of the aggradation, and reaching the level of water supply quality, and 3) favorable economic parameters for opening the source at the aggradation, compared to other types of water sources. The possibility that check dams, in addition to their traditional role, could be used for local water supply facilities was also highlighted.

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48

Sattar, Ahmed M. A. "Gene expression models for prediction of dam breach parameters." Journal of Hydroinformatics 16, no. 3 (October 9, 2013): 550–71. http://dx.doi.org/10.2166/hydro.2013.084.

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Data from a large database of 140 dam failure cases are used with gene expression programming (GEP) to develop new empirical formulae of physical meaning for prediction of non-dimensional key dam breach parameters. The GEP models are trained on 75% of the data set and validated on the remaining 25%. Parametric and error analyses are conducted to confirm the robustness of the developed relations. Moreover, uncertainty analyses using the Monte Carlo technique is performed to check for the output uncertainty of key dam breach parameters and the contribution of various input parameters to the overall output uncertainty. It is found that uncertainties of 20 to 40% are calculated for the developed GEP models with reservoir shape factor and dam erodibility being main influential predictors.

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WATANABE, Yasuharu, Yuto TAKASUGI, and Sayumi KATAYAMA. "HYDRAULIC EXPERIMENTS ON RIVER CHANNEL RESPONSE WHEN SLITTING A CHECK DAM." Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 77, no. 2 (2021): I_775—I_780. http://dx.doi.org/10.2208/jscejhe.77.2_i_775.

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50

SHIMODA, Yoshifumi, Shinji SUZUKI, Nobutaka ISHIKAWA, and Kohei FURUKAWA. "Impact failure analysis of concrete check dam by distinct element method." Doboku Gakkai Ronbunshu, no. 480 (1993): 97–106. http://dx.doi.org/10.2208/jscej.1993.480_97.

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Journal articles on the topic 'Check dam'

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