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1

Wang, Dong, Lan Zhu Cao, Chun De Piao, and Run Cai Bai. "Influence of Underground Mining on Failure Mode and Stability of Counter-Tilt Slope in Surface Mines." Advanced Materials Research 594-597 (November 2012): 80–85. http://dx.doi.org/10.4028/www.scientific.net/amr.594-597.80.

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How to demonstrate the deformation and failure mode of the slope under combine surface and underground mining and evaluate its stability scientifically is one of the problems that need urgent solutions in mining engineering. First, the deformation and failure mode of the slope under simple surface mining, the deformation and failure mechanism of the overlying strata affected by underground mining and deformation mechanism of the slope under combined surface and underground mining were analyzed, then the failure mode and the stability calculation method of the slope under combined surface and u
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2

Zhang, Zhenhua, Mingming Qian, Song Wei, and Juxiang Chen. "Failure Mechanism of the Qianjiangping Slope in Three Gorges Reservoir Area, China." Geofluids 2018 (August 6, 2018): 1–12. http://dx.doi.org/10.1155/2018/3503697.

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The Qianjiangping landslide is the first large-scale rock slide in Three Gorges Reservoir (TGR) Area, China, after the impoundment of the TGR. Previous studies on the slope showed that most researchers agreed that reservoir impoundment and rainfall were the two main triggering factors of the slope failure. However, there were different views about the influence degrees of the two factors on the slope failure. In order to clarify the influence degrees of each of three conditions (reservoir impoundment, rainfall, and combined effect of reservoir impoundment and rainfall) on the failure of the Qi
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3

Ju, Hai Yan, Gui Qing Gao, Shao Lin Liu, Chang Tai Luo, and Jian Hua Li. "The Instability Mechanism of Soil-like Slope under the Action of Acid Corrosion in Open-Pit Copper Mine." Applied Mechanics and Materials 580-583 (July 2014): 750–54. http://dx.doi.org/10.4028/www.scientific.net/amm.580-583.750.

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Combined with the engineering geological conditions and geological characteristics of soil-like slope in a certain open-pit copper mine, based on the experiments and theoretical analysis, the instability mechanism of soil-like slope under the action of acid mine wastewater is researched. Because the acid wastewater goes into the weak structural plane, reacting with the constitutional materials and fillings in slopes, the react change the microstructure of the rock and soil, and replace, dissolve the components, causing the cohesion and internal friction angle of slope reducing eventually and s
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4

Cui, Fang Peng, Yue Ping Yin, Rui Lin Hu, and Jin Qing Yu. "Failure Mechanisms of the Landslides Triggered by the 2008 Wenchuan Earthquake, China." Advanced Materials Research 594-597 (November 2012): 1864–68. http://dx.doi.org/10.4028/www.scientific.net/amr.594-597.1864.

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Taking the landslides triggered by the 2008 Wenchuan Earthquake as examples, their dynamic responses with different epicenter distances due to single and combined action with regionality and spatial heterogeneity of the Primary and Secondary waves were simulated by applying the Universal Distinct Element Code software. The results shows that the slope suffered from the combined action between P and S waves appears instability prior to the slope under single action of P wave. With the epicenter distance increasing, the key controlling factor resulting in the slope failure varies from the combin
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5

Zhou, Wei, Wei Yuan, Gang Ma, and Xiao-Lin Chang. "Combined finite-discrete element method modeling of rockslides." Engineering Computations 33, no. 5 (July 4, 2016): 1530–59. http://dx.doi.org/10.1108/ec-04-2015-0082.

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Purpose – The purpose of this paper is to propose a novel combined finite-discrete element method (FDEM), based on the cohesive zone model, for simulating rockslide problems at the laboratory scale. Design/methodology/approach – The combined FDEM is realized using ABAQUS/Explicit. The rock mass is represented as a collection of elastic bulk elements glued by cohesive elements with zero thickness. To reproduce the tensile and shear micro-fractures in rock material, the Mohr-Coulomb model with tension cut-off is employed as the damage initiation criterion of cohesive elements. Three simulated la
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6

Nian, Ting Kai, Ke Li Zhang, Run Qiu Huang, and Guang Qi Chen. "Stability Analysis of a 3D Vertical Slope with Transverse Earthquake Load and Surcharge." Applied Mechanics and Materials 90-93 (September 2011): 676–79. http://dx.doi.org/10.4028/www.scientific.net/amm.90-93.676.

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The stability and failure mode for a 3D vertical slope with transverse earthquake load and surcharge have been an interesting issue, especially in building excavation and wharf engineering. In order to further reveal the seismic and surcharge effect, a three-dimensional elasto-plastic finite element(FE) code combined with a strength reduction procedure is used to yield a factor of safety and failure mode for a vertical slopes under two horizontal direction pseudo-static(PS) coefficient and surcharge on the slope top, respectively. Comparative studies are carried out to investigate the effect o
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7

Tan, Mengxi, and Sai K. Vanapalli. "Performance estimation of a shallow foundation on an unsaturated expansive soil slope subjected to rainfall infiltration." MATEC Web of Conferences 337 (2021): 03009. http://dx.doi.org/10.1051/matecconf/202133703009.

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In the last two decades, there has been a significant increase in infrastructure development on slopes of hilly regions of the world, due to population growth. There are many infrastructures on unsaturated expansive slopes, especially in semi-arid and arid regions. Rainfall infiltration is one of the major factors that contributes to the slope and infrastructure foundations failures on hilly slopes with unsaturated expansive soils. In the current study, a rational approach is proposed considering the combined influence of the foundation-slope behavior based on the principles of unsaturated soi
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8

Zeng, Bin, and Hong Zhou. "Formation Mechanism Analysis of Cataclastic Texture Rock Landslide Based on Discrete Element Method." Applied Mechanics and Materials 405-408 (September 2013): 558–61. http://dx.doi.org/10.4028/www.scientific.net/amm.405-408.558.

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Since a long time of excavation, the slope in Yang-mountain of Suzhou Province became a high and steep slope which has 260m difference in height, on top of this slope there is a high risky cataclastic texture bedrock landslide. Based on geologic investigation of the landslide, combined with 3DEC numerical simulation, the paper gave a comprehensive analysis on formation precondition, evolution procedure, failure model and mechanism from the points of topographic feature, structure evolution history, lithology and external influence. It is shown that the free face in front of the landslide, weak
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9

Wang, Liang, Xue Zhang, and Stefano Tinti. "Large deformation dynamic analysis of progressive failure in layered clayey slopes under seismic loading using the particle finite element method." Acta Geotechnica 16, no. 8 (January 21, 2021): 2435–48. http://dx.doi.org/10.1007/s11440-021-01142-8.

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AbstractThis paper presents the failure analysis of layered clayey slopes with emphasis on the combined effect of the clay’s weakening behavior and the seismic loading using the particle finite element method (PFEM). Diverse failure mechanisms have been disclosed via the PFEM modelling when the strain-weakening behavior of clay is concerned. In contrast to a single layered slope exhibiting either a shallow or a deep failure mode, a layered slope may undergo both failure modes with a time interval in between. Seismic loadings also enlarge the scale of slope failure in clays with weakening behav
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10

Mei, Xuefeng, Nengfeng Wang, Guotao Ma, Jie Wang, Yan Wang, Jianli Wu, Mei Han, and Bin Cai. "Deformation Process and Mechanism Analyses of a Rock Slope Based on Long-Term Monitoring at the Pubugou Hydropower Station, China." Geofluids 2021 (February 12, 2021): 1–17. http://dx.doi.org/10.1155/2021/6615424.

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This paper presents a typical 450 m high rock slope in a highly jointed and fractured rock mass at Pubugou (PBG) hydropower station on the Dadu River. We established a set of multiphase field geological survey combined with GPS, inclinometers, and piezometer monitoring system to analyze the deformation and failure mechanism of rock slope. The results show that small-scale excavation in road construction disrupted the balance of the Pubugou rock slope (PBGRS), and several local retrogressive failures occurred at the toe. Monitoring data regarding surface and subsurface movements show that the P
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11

Jeong, S. S., J. H. Kim, Y. M. Kim, and D. H. Bae. "Susceptibility assessment of landslides under extreme-rainfall events using hydro-geotechnical model; a case study of Umyeonsan (Mt.), Korea." Natural Hazards and Earth System Sciences Discussions 2, no. 8 (August 28, 2014): 5575–601. http://dx.doi.org/10.5194/nhessd-2-5575-2014.

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Abstract. The influence of climate change on patterns has the potential to alter stability of partially saturated soil slopes. Changes in rainfall patterns have a strong influence on stability of partially saturated soil slopes, which recently have resulted in shallow landslides. In this paper, a comprehensive case study on the 2011 Umyeonsan (Mt.) landslides was highlighted. The incident involves the collapse of a soil slope and the debris flow under extreme-rainfall event, causing 16 fatalities and serious damaged to 146 housings. A fundamental study was carried out on the cause and mechanis
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12

Francioni, Mirko, Doug Stead, Jayanti Sharma, John J. Clague, and Marc-André Brideau. "An Integrated InSAR-Borehole Inclinometer-Numerical Modeling Approach to the Assessment of a Slow-Moving Landslide." Environmental and Engineering Geoscience 27, no. 3 (June 4, 2021): 287–305. http://dx.doi.org/10.2113/eeg-d-20-00109.

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ABSTRACT We use results of satellite-based interferometric synthetic aperture radar, Global Positioning System, and borehole inclinometer data to constrain numerical models that improve understanding of slope deformation at the Alexandria landslide, British Columbia, Canada. Surface monitoring data and borehole slope inclinometer measurements provide important insight into the slope failure mechanism. We initially analyzed the data in a geographic information system (GIS) to create thematic maps of the landslide area (hillshade, slope, and aspect), to identify key geological features, and to p
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13

Xiong, Tongqiang, Jianlin Li, Lehua Wang, Huafeng Deng, and Xiaoliang Xu. "Reservoir Landslide Physical Modelling under Ice-Snow Melting and Reservoir Water Combined Action." Advances in Civil Engineering 2020 (December 7, 2020): 1–21. http://dx.doi.org/10.1155/2020/8832485.

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Extreme ice-snow melting in winter affects the infiltration process of snow water on the slope surface significantly and plays an important role in the deformation stability of landslide. Variation in pore water pressure is regarded as an essential factor of landslide instability induced by snow water. In order to figure out the internal relationship between the infiltration process of snow water and the failure mode of deformation and instability of the accumulation landslide, the response law and deformation and failure mode of pore water pressure and soil pressure of landslide accumulation
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14

Huang, Yongliang, Zhiwei Sun, Chunyan Bao, Man Huang, Anyuan Li, and Minghao Liu. "A Typical Basalt Platform Landslide: Mechanism and Stability Prediction of Xiashan Landslide." Advances in Civil Engineering 2021 (April 2, 2021): 1–14. http://dx.doi.org/10.1155/2021/6697040.

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The Xiashan landslide, which is classified as a typical basalt platform landslide, is the most massive landslide in Zhejiang Province, China. Once sliding occurs, it will pose a severe threat to the life and property of downstream residents and the nearby section of Hangzhou-Taizhou Expressway. On the basis of the geological conditions, present situation, and latest monitoring data of the landslide, this study finds that rainfall is the main influencing factor, and the creep mode is the main prediction mode of its subsequent deformation. The rainfall statistics of the landslide area in the pas
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15

Puzrin, Alexander M. "Simple criteria for ploughing and runout in post-failure evolution of submarine landslides." Canadian Geotechnical Journal 53, no. 8 (August 2016): 1305–14. http://dx.doi.org/10.1139/cgj-2015-0582.

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This paper extends shear band propagation analysis of slope failures to the investigation of ploughing and runout phenomena in submarine landslides. The ability to predict the two different modes of post-failure landslide evolution is critical for determining the tsunami hazard and type of landslide impact on offshore structures. The proposed analysis is based on the analogy between ploughing and spreading failures. It uses the energy balance approach to develop the criterion for progressive shear band propagation driven by accumulation of sliding material on top of the stable slope. This crit
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16

Tang, Liang Qin, Yong Jian Li, De Xin Nie, and Dong Yan Liu. "Stability Analysis of Diversion Tunnel Inlet Slope at Right Bank of Jinchuan Hydropower Station." Applied Mechanics and Materials 170-173 (May 2012): 2101–5. http://dx.doi.org/10.4028/www.scientific.net/amm.170-173.2101.

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Based on the research of formation lithology, geological structure, deformation failure mechanism ,rock-mass quality and mechanics parameters of the diversion tunnel inlet slope at the right bank of Jinchuan Hydropower Station, a numerical three-dimensional geological model of slope and structural surface was established by applying 3D modeling program, and combined with the slope excavation design, cuttings of transverse and axial direction are conducted, thus, the structural surface location and the rock-block combination are obtained in the excavation face and excavation process. And then,
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17

Strouth, A., E. Eberhardt, and O. Hungr. "A "Total Slope Analysis" methodology applied to an unstable rock slope in Washington, USA." Journal of Nepal Geological Society 34 (October 9, 2006): 63–72. http://dx.doi.org/10.3126/jngs.v34i0.31880.

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A "Total Slope Analysis" methodology, that combines several numerical techniques, is adopted to investigate an unstable rock slope in Washington State, USA. For this specific study, the distinct-element code UDEC is used to assess the stability and potential failure volume of the rockslide. Once the potential rockslide volume has been estimated and failure mechanism assessed, the runout path, distance and velocity are assessed using the dynamic or rheological flow model DAN3D. Site investigation and data reconnaissance plays an important role for both stages in the "Total Slope Analysis", incl
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18

Chen, Xiao Ping, and Teng Teng Chen. "Research on Stability of an Excavated High Slope." Applied Mechanics and Materials 90-93 (September 2011): 377–82. http://dx.doi.org/10.4028/www.scientific.net/amm.90-93.377.

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Stability analysis of excavated high slope is a complex problem. This work aims to a real excavated high slope in argillaceous mudstone, the strength properties of mudstone and instability mechanisms of slope had been studied separately by laboratory tests and numerical stimulate. The test results of residual-strength under large strain and softening-strength under rainfall infiltration were presented. The stability estimate basis of Bishop circular arc method and non-linear stress-strain analysis based on Duncan constitutive model had been carried out on the slope, using different strength in
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19

Yang, Bing, Jiangrong Hou, Yifei Liu, and Zihong Zhou. "Dynamic Response and Failure Characteristics of Slope with Weak Interlayer under Action of Near-Fault Ground Motion." Shock and Vibration 2021 (April 30, 2021): 1–18. http://dx.doi.org/10.1155/2021/5595278.

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Investigations into the Wenchuan earthquake (2008, China) demonstrated that landslides were concentrated in the near-fault areas, and numerous large-scale landslides occurred in slopes with weak interlayers. A mathematical model was established based on the shear beam theory, while a numerical model was developed based on the discrete element method which perfectly matched layer boundary theory. Through a theoretical analysis and numerical simulation, the dynamic response and failure modes of the slope with a weak interlayer under the near-fault ground motion were studied. It was found that a
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20

Cohen, Denis, and Massimiliano Schwarz. "Tree-root control of shallow landslides." Earth Surface Dynamics 5, no. 3 (August 17, 2017): 451–77. http://dx.doi.org/10.5194/esurf-5-451-2017.

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Abstract. Tree roots have long been recognized to increase slope stability by reinforcing the strength of soils. Slope stability models usually include the effects of roots by adding an apparent cohesion to the soil to simulate root strength. No model includes the combined effects of root distribution heterogeneity, stress-strain behavior of root reinforcement, or root strength in compression. Recent field observations, however, indicate that shallow landslide triggering mechanisms are characterized by differential deformation that indicates localized activation of zones in tension, compressio
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21

Cao, Chunhui, Jili Feng, and Zhigang Tao. "Start-Up Mechanism and Dynamic Process of Landslides in the Full High Waste Dump." Water 12, no. 9 (September 11, 2020): 2543. http://dx.doi.org/10.3390/w12092543.

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Landslides often occur in the open-pit mine dump, which is harmful to the safety operation of mines and slopes. In this work, the landslides that occurred in 2014 at Nanfen open-pit mine of China are studied to understand the triggering mechanism and dynamic process of landslides in the full high waste dump. Field investigation, hydrogeological data analysis, satellite map data, and numerical simulation are combined to analyze and evaluate the landslides. The study shows that the continuous and intensive dumping can lead to shear failure under the action of self-weight. The shear strength of l
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22

Meng, Zhigang, Yongli Hou, Longji Guo, Fengnian Wang, Kuiming Liu, Gan Qi, and Juan Ma. "Discrete Element Simulation Analysis of the Bending and Toppling Failure Mechanisms of High Rock Slopes." Geofluids 2021 (January 31, 2021): 1–12. http://dx.doi.org/10.1155/2021/6681641.

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The high rock slope situated in the Southwest stope of Taiping Mining, Inner Mongolia, is subject to dumping failure due to its instability. The dumping body rock layer of this stope shows obvious bending and lowering of the head. The overturning angle of the rock strata can reach 46°, and tension dislocation along the rock joint can be observed in exposed sections and at the bedding and lithologic interface. The sliding surface also displays a broken line morphology. Through evaluation of regional rock integrity parameters and rock soft and hard parameters, rock-mass strength based on Hoek Br
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23

Lackey, J. K., G. F. Moore, M. Strasser, A. Kopf, and C. S. Ferreira. "Spatial and temporal cross-cutting relationships between fault structures and slope failures along the outer Kumano Basin and Nankai accretionary wedge, SW Japan." Geological Society, London, Special Publications 477, no. 1 (March 6, 2018): 23–36. http://dx.doi.org/10.1144/sp477.10.

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AbstractNew, high-resolution multi-beam bathymetric data from RV Sonne cruise SO251 show a widely variable surface morphology along the southern Kumano Basin and Nankai accretionary prism off SW Japan. Combined with a three-dimensional seismic volume, these data provide insight into the ubiquitous and varied nature of faulting typical of accretionary prism settings, a high number of submarine landslides across the entire study area that vary both spatially and temporally, a pronounced absence of slide deposit bathymetric manifestations, widely varied slope angles and a potential subducted seam
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24

Peng, Chen, Peng Fei Chen, and Zheng Yi Ti. "Non-Working Wall's Slope Stability Analysis with the First Mining Area in Weijiamao Open-Pit Mine." Advanced Materials Research 446-449 (January 2012): 1853–57. http://dx.doi.org/10.4028/www.scientific.net/amr.446-449.1853.

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To ensure the non-working wall's slope stability in Weijiamao open-pit mine,the paper analysis the engineering geological condition and hydrogeology condition of Weijiamao open-pit mine's slope,on this basis,combine the typical rocky slope's deformation and failure mode,physical properties of glutenite and weak layer from experiment,determined the latent destruction mode of non-working wall's slope in Weijiamao open-pit mine;calculated the slope's stable coefficient and the stable coefficient after cutting slope and unloading with rigid body limit equilibrium method ;make the numerical simulat
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25

Hongze, Zhao, Wang Dongyu, Ma Ming, and Zheng Kaihui. "Parameter inversion and location determination of evolutionary weak layer for open-pit mine slope." International Journal of Coal Science & Technology 7, no. 4 (June 13, 2020): 714–24. http://dx.doi.org/10.1007/s40789-020-00337-w.

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AbstractIn light of the complex and dynamic mechanical properties of evolving weak strata in open-pit mines, and the consequent difficulty of determining their mechanical parameters, this study uses the ultimate balance theory, along with the back analysis method combined with monitoring data on field displacement, to carry out parameter inversion using the FLAC3D numerical simulation software. The edge slope of a working pit of the Weijiamao open-pit mine was used as research object to this end. As the results obtained by the constitutive model were consistent with the field monitoring data,
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26

Yang, Min, Shuping Xiong, Yue Cao, Zhaoyang Ling, Yang Liu, and Yihan Xie. "Landslide hazard evaluation based on linear rupture plane method." E3S Web of Conferences 143 (2020): 02030. http://dx.doi.org/10.1051/e3sconf/202014302030.

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In recent years, landslide disasters have occurred frequently, making the evaluation of the susceptibility of landslide hazards a major difficulty and hot topic in current research. The current research focuses on the use of statistical models or information models to analyze landslide hazards. However, the accuracy is not high. We first study the mechanism of landslide geological disasters. Based on this, combined with multi-source geological data, a linear rupture plane method (LRP) is employed to construct the landslide hazard evaluation system. LRP regards the failure surface of the slope
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27

Luo, Gang, Yutian Zhong, and Yuanxiang Yang. "Failure Mechanism and Mitigation Measures of the G1002 Electricity Pylon Landslide at the Jinping I Hydropower Station." Advances in Civil Engineering 2020 (September 18, 2020): 1–15. http://dx.doi.org/10.1155/2020/8820315.

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On August 29 and 30, 2012, local extreme rainfalls struck the construction area of the Jinping I Hydropower Station, Xichang, China, and triggered many geohazards. The upper region of the left valley slope 200 m downstream of the dam failed and slid, exposing the D-pile of the G1002 electricity pylon and threatening the entire power transmission line. Therefore, guaranteeing the stability of the residual soil masses in the rear area of the main scarp and the safety of the G1002 electricity pylon became a primary emergency task. Geological field surveys, topographical mapping, study of the fail
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28

Tian, Hai, Jianjun Gan, Hui Jiang, Chun Tang, Changtai Luo, Chenghui Wan, Bin Xu, Faliang Gui, Chengyi Liu, and Nian Liu. "Failure Mechanism and Kinematics of the Deadly September 28th 2016 Sucun Landslide, Suichang, Zhejiang, China." Advances in Civil Engineering 2020 (November 27, 2020): 1–15. http://dx.doi.org/10.1155/2020/8828819.

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The formation and dynamic process analysis of the rockslide avalanche in mountainous areas are one of the consequences of the catastrophic accident. Such loose accumulation in upslope may saturate partially or completely when the stability of their accumulation dam is distributed or affected by rainfall. We present a case study with respect to the southern Wuyi Mountain located in eastern China, where the wet and rainy climate has led to dozens of similar rockslide hazards. The purpose of this paper was to analyse the mechanism and dynamic characteristics of the rockslide influenced by the sam
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29

Fusco, De Vita, Mirus, Baum, Allocca, Tufano, Di Clemente, and Calcaterra. "Physically Based Estimation of Rainfall Thresholds Triggering Shallow Landslides in Volcanic Slopes of Southern Italy." Water 11, no. 9 (September 14, 2019): 1915. http://dx.doi.org/10.3390/w11091915.

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On the 4th and 5th of March 2005, about 100 rainfall-induced landslides occurred along volcanic slopes of Camaldoli Hill in Naples, Italy. These started as soil slips in the upper substratum of incoherent and welded volcaniclastic deposits, then evolved downslope according to debris avalanche and debris flow mechanisms. This specific case of slope instability on complex volcaniclastic deposits remains poorly characterized and understood, although similar shallow landsliding phenomena have largely been studied in other peri-volcanic areas of the Campania region underlain by carbonate bedrock. C
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30

Shen, Xiang Dong, and Yu Pei Zhang. "Cold Trapezoidal Channel Composite Lining Structure Force Analysis and Failure Criteria." Advanced Materials Research 655-657 (January 2013): 1853–56. http://dx.doi.org/10.4028/www.scientific.net/amr.655-657.1853.

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Water conservancy project in the northern cold regions, most of the channel lining structure using polystyrene board plus the compound in the form of precast concrete panels, due to the lack of convenient and practical theoretical model for the guidance of the composite channel lining alone experience and experimental data the size of its structure, the actual cold water channels and the climate and environment in which concrete composite lining water channels necessary assumptions, the use of the theory of the mechanics of composite materials, concrete structures and other composite channel l
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31

Shao, W., T. A. Bogaard, M. Bakker, and R. Greco. "Quantification of the influence of preferential flow on slope stability using a numerical modeling approach." Hydrology and Earth System Sciences Discussions 11, no. 11 (November 26, 2014): 13055–99. http://dx.doi.org/10.5194/hessd-11-13055-2014.

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Abstract. The effect of preferential flow on the stability of landslides is studied through numerical simulation of two types of rainfall events on a hypothetical hillslope. A model is developed that consists of two parts. The first part is a model for combined saturated/unsaturated subsurface flow and is used to compute the spatial and temporal water pressure response to rainfall. Preferential flow is simulated with a dual-permeability continuum model consisting of a matrix domain coupled to a preferential flow domain. The second part is a~soil mechanics model and is used to compute the spati
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32

Shao, W., T. A. Bogaard, M. Bakker, and R. Greco. "Quantification of the influence of preferential flow on slope stability using a numerical modelling approach." Hydrology and Earth System Sciences 19, no. 5 (May 7, 2015): 2197–212. http://dx.doi.org/10.5194/hess-19-2197-2015.

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Abstract. The effect of preferential flow on the stability of landslides is studied through numerical simulation of two types of rainfall events on a hypothetical hillslope. A model is developed that consists of two parts. The first part is a model for combined saturated/unsaturated subsurface flow and is used to compute the spatial and temporal water pressure response to rainfall. Preferential flow is simulated with a dual-permeability continuum model consisting of a matrix domain coupled to a preferential flow domain. The second part is a soil mechanics model and is used to compute the spati
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33

Mebarki, A., N. Valencia, J. L. Salagnac, and B. Barroca. "Flood hazards and masonry constructions: a probabilistic framework for damage, risk and resilience at urban scale." Natural Hazards and Earth System Sciences 12, no. 5 (May 29, 2012): 1799–809. http://dx.doi.org/10.5194/nhess-12-1799-2012.

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Abstract. This paper deals with the failure risk of masonry constructions under the effect of floods. It is developed within a probabilistic framework, with loads and resistances considered as random variables. Two complementary approaches have been investigated for this purpose: – a global approach based on combined effects of several governing parameters with individual weighted contribution (material quality and geometry, presence and distance between columns, beams, openings, resistance of the soil and its slope. . .), – and a reliability method using the failure mechanism of masonry walls
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34

Shaller, Philip J. "Analysis of a large moist landslide, Lost River Range, Idaho, U.S.A." Canadian Geotechnical Journal 28, no. 4 (August 1, 1991): 584–600. http://dx.doi.org/10.1139/t91-073.

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This paper describes the regional geology, dimensions, morphology, sedimentology, and age relations of the Holocene "Carlson landslide," a large moist landslide composed of basalt breccia located on the eastern margin of the Lost River Range, Idaho. These data are combined to deduce the factors that prompted the slope failure, the kinematics of initiation, travel, and stopping of the landslide, as well as its postemplacement degradation. The landslide is compared with other terrestrial mass movements on the basis of morphology, sedimentology, log(volume) versus fall height –runout length (H/L)
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Jia, Lin Gang. "Simulation Experiment Study of Surrounding Rock Deformation and Surface Movement during Paste Filling Mining." Advanced Materials Research 1073-1076 (December 2014): 2135–44. http://dx.doi.org/10.4028/www.scientific.net/amr.1073-1076.2135.

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Based on the prototype of No. 2307 filling working face in Yuyang mine, using the method of similar simulation combined with numerical simulation, the geological mechanics model is established to simulate and analyze the mechanics evolution law and the deformation and movement process of the surrounding rock and the surface during the filling mining. Research shows that backfilling can effectively control surrounding rock failure and the surface deformation, and the roof doesn’t collapse, but the bed separated fissures appear, and the maximum stagnation lags the working face by 58.5m; in the m
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Azzuhry, Yahdi. "STABILITY ANALYSIS AND FAILURE MECHANISMS OF OPEN PIT ROCK SLOPE." Journal of the Civil Engineering Forum 2, no. 3 (August 16, 2017): 255. http://dx.doi.org/10.22146/jcef.26589.

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Rock mass in nature tend to be unideal, for it is heterogeneous, anisotropic and has discontinuity. The discontinuity makes anisotropic strength and stress in the rock mass, and also controls the changing of the elastic properties of rock mass. This condition results to disruptions in the rock mass strength balance, and finally drives the slopes to collapse. This study aims to determine the slope failure mechanisms in the area of case study, as well as its variations based on the Rock Mass Rating (RMR), Geological Strength Index (GSI), Slope Mass Rating (SMR), kinematic analysis, numerical ana
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Vessia, G., M. Parise, and G. Tromba. "A strategy to address the task of seismic micro-zoning in landslide-prone areas." Advances in Geosciences 35 (June 26, 2013): 23–35. http://dx.doi.org/10.5194/adgeo-35-23-2013.

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Abstract. As concerns landslide prevention and mitigation policies at the urban scale, the ability of Geographical Information Systems (GIS) to combine multi-layered information with high precision enables technicians and researchers to devote efforts in managing multiple hazards, such as seismically induced instability in urbanized areas. As a matter of fact, many villages in the Italian Apennines, placed near high-energy seismic sources, are characterized by active sliding that are seasonally remobilized by rainfall. GIS tools can be useful whether accurate Digital Elevation Models (DEM) are
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Wu, Xiangye, Jingya Wang, Jingang Li, Jianwei Li, Tao Xu, and Eryu Wang. "The Principle of Invariant Stress of the Surrounding Rock of the Hole under the Condition of Equal Pressure in the Deep Rock Mass." Shock and Vibration 2020 (September 30, 2020): 1–10. http://dx.doi.org/10.1155/2020/8878280.

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Based on the hydrostatic pressure theory of initial stress state of rock mass, combined with Saint-Venant’s principle central idea, the principle of invariant stress of surrounding rock mass of the hole under the condition of equal pressure in deep rock mass is put forward. Numerical simulation is used to study the properties of surrounding rock and section shape of different holes, the depth of the plastic zone, the range of stress influence, and the relationship between them. The study results showed the following. (1) In the current mining depth range, it is difficult to reach the limit of
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Er, Gϕkdeniz Ne, and Erkin Altunsaray. "The Effects of Seawater Environment, Material Direction and Thickness on the Fatigue Performance of Adhesively Bonded and Bolted Joints of Non-Crimp GRP Structures." Advanced Composites Letters 15, no. 4 (July 2006): 096369350601500. http://dx.doi.org/10.1177/096369350601500402.

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In this experimental study, which was undertaken to evaluate the combined effects of material direction, thickness and seawater environment on the fatigue behaviour of adhesively bonded and bolted joints widely used in GRP boat building, the specimens, which were produced by composite system, which its matrix material was multi-purpose polyester (Dewester 196 from the Dewilux Inc.) and its reinforcing material was non-crimp, E-glass fibres, has been used. Unjoined control specimens taken from two different panels (thickness of 5 mm and 11 mm) with the direction of 0′I, were subjected to the te
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Wauters, Aurélien, Marco Vicenzi, Benjamin De Becker, Jean-Philippe Riga, Fatemeh Esmaeilzadeh, Vitalie Faoro, Jean-Luc Vachiéry, Philippe van de Borne, and Jean-François Argacha. "At high cardiac output, diesel exhaust exposure increases pulmonary vascular resistance and decreases distensibility of pulmonary resistive vessels." American Journal of Physiology-Heart and Circulatory Physiology 309, no. 12 (December 15, 2015): H2137—H2144. http://dx.doi.org/10.1152/ajpheart.00149.2015.

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Air pollution has recently been associated with the development of acute decompensated heart failure, but the underlying biological mechanisms remain unclear. A pulmonary vasoconstrictor effect of air pollution, combined with its systemic effects, may precipitate decompensated heart failure. The aim of the present study was to investigate the effects of acute exposure to diesel exhaust (DE) on pulmonary vascular resistance (PVR) under resting and stress conditions but also to determine whether air pollution may potentiate acquired pulmonary hypertension. Eighteen healthy male volunteers were e
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Su, Kai, Yin Li, and Dan Cheng. "Slope Stability Analysis Under Combined Failure Criteria." Open Civil Engineering Journal 10, no. 1 (March 31, 2016): 125–31. http://dx.doi.org/10.2174/1874149501610010125.

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Strength reduction finite element method (SRFEM) has been widely used to analyze the slope stability. Strength Reduction Factor (SRF) is yielded as the slope Factor Of Safety (FOS) when a running-though shear failure zone comes into being, in which the Plastic Element EQuivalent strain (PEEQ) is employed as the judgment of shear failure initiation in this paper. Moreover, the filed variable is set as same as SRF along the solution processing, FOS can be directly determined as the cor-responding value of field variable when the shear failure zone goes through. Three typical slopes with varying
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Quej-Aké, Luis M., Ricardo Galván-Martínez, and Antonio Contreras-Cuevas. "Electrochemical and Tension Tests Behavior of API 5L X60 Pipeline Steel in a Simulated Soil Solution." Materials Science Forum 755 (April 2013): 153–61. http://dx.doi.org/10.4028/www.scientific.net/msf.755.153.

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In this work electrochemical impedance spectroscopy (EIS) and slow strain rate tests (SSRT) were used for the evaluation of API 5L X60 carbon steel in contact with a simulated soil solution called NS4. EIS monitoring before and after performing the tension tests was carried out. SSRT were carried out in NS4 solution at room temperature to simulate dilute ground water that has been found associated with stress corrosion cracking (SCC) of low carbon steel pipelines. A strain rate of 1x10-6 sec-1 was used. According to the analysis of SSRT, the X60 pipeline steel is highly resistant to SCC. In or
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Tang, Hua, Zhenjun Wu, Ailan Che, Conghua Yuan, and Qin Deng. "Failure Mechanism of Rock Slopes under Different Seismic Excitation." Advances in Materials Science and Engineering 2021 (February 20, 2021): 1–16. http://dx.doi.org/10.1155/2021/8866119.

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In earthquake-prone areas, special attention should be paid to the study of the seismic stability of rock slope. Particularly, it becomes much more complicated for the rock slopes with weak structural surfaces. In this study, numerical simulation and the shaking table test are carried out to analyze the influence of seismic excitation and structural surface in different directions on dynamic response of rock slope. Huaping slope with bedding structural surfaces and Lijiang slope with discontinuous structural surfaces besides Jinsha River in Yunnan Province are taken as research objects. The re
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Yamaguchi, Kent T., Edward C. Cheung, Keith L. Markolf, Daniel V. Boguszewski, Justin Mathew, Christopher J. Lama, David R. McAllister, and Frank A. Petrigliano. "Effects of Anterior Closing Wedge Tibial Osteotomy on Anterior Cruciate Ligament Force and Knee Kinematics." American Journal of Sports Medicine 46, no. 2 (November 3, 2017): 370–77. http://dx.doi.org/10.1177/0363546517736767.

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Background: A certain percentage of patients undergoing anterior cruciate ligament (ACL) reconstruction will experience graft failure, and there is mounting evidence that an increased posterior tibial slope (PTS) may be a predisposing factor. Theoretically, under tibiofemoral compression force (TFC), a reduced PTS would induce less anterior tibial translation (ATT) and lower ACL force. Hypothesis: Ten-degree anterior closing wedge osteotomy of the proximal tibia will significantly reduce ACL force and alter knee kinematics during robotic testing. Study Design: Controlled laboratory study. Meth
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Chen, Lin, Yong Yao, Jiong Yang, and Zhao Qiang Zhang. "Failure Mechanism of a Slope Anti-Sliding Pile." Advanced Materials Research 639-640 (January 2013): 593–97. http://dx.doi.org/10.4028/www.scientific.net/amr.639-640.593.

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According to finite element strength reduction method,the article has discussed the failure mechanism of anti-sliding pile by using finite element software MIDAS /GTS ,exploration report and anti-sliding pile design data.The comparative analysis shows that the failure of anti-siding pile is contributed by the slope excavation and rainwater.The analysis method and results can provide reference significance to other anti-sliding pile design.This paper also provide a feasible method for prediction of consequence in slope excavation.
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Sidle, R. C., M. Ghestem, and A. Stokes. "Epic landslide erosion from mountain roads in Yunnan, China – challenges for sustainable development." Natural Hazards and Earth System Sciences 14, no. 11 (November 27, 2014): 3093–104. http://dx.doi.org/10.5194/nhess-14-3093-2014.

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Abstract. Expanding systems of mountain roads in developing countries have significantly increased the risk of landslides and sedimentation, and have created vulnerabilities for residents and aquatic resources. We measured landslide erosion along seven road segments in steep terrain in the upper Salween River basin, Yunnan, China and estimated sediment delivery to channels. Landslide erosion rates along the roads ranged from 2780 to 48 235 Mg ha−1 yr−1, the upper end of this range being the highest rate ever reported along mountain roads. The two roads with the highest landslide erosion (FG1 =
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Wondergem, Robert, Bridget M. Graves, Tammy R. Ozment-Skelton, Chuanfu Li, and David L. Williams. "Lipopolysaccharides directly decrease Ca2+ oscillations and the hyperpolarization-activated nonselective cation current If in immortalized HL-1 cardiomyocytes." American Journal of Physiology-Cell Physiology 299, no. 3 (September 2010): C665—C671. http://dx.doi.org/10.1152/ajpcell.00129.2010.

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Lipopolysaccharide (LPS) has been implicated in sepsis-mediated heart failure and chronic cardiac myopathies. We determined that LPS directly and reversibly affects cardiac myocyte function by altering regulation of intracellular Ca2+ concentration ([Ca2+]i) in immortalized cardiomyocytes, HL-1 cells. [Ca2+]i oscillated (<0.4 Hz), displaying slow and transient components. LPS (1 μg/ml), derived either from Escherichia coli or from Salmonella enteritidis , reversibly abolished Ca2+ oscillations and decreased basal [Ca2+]i by 30–40 nM. HL-1 cells expressed Toll-like receptors, i.e., TLR-2 and
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Troiani, Francesco, Salvatore Martino, Gian Marco Marmoni, Marco Menichetti, Davide Torre, Giulia Iacobucci, and Daniela Piacentini. "Integrated Field Surveying and Land Surface Quantitative Analysis to Assess Landslide Proneness in the Conero Promontory Rocky Coast (Italy)." Applied Sciences 10, no. 14 (July 13, 2020): 4793. http://dx.doi.org/10.3390/app10144793.

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Rock slopes involved in extensive landslide processes are often characterized by complex morphodynamics acting at different scales of space and time, responsible for different evolutionary scenarios. Mass Rock Creep (MRC) is a critical process for long-term geomorphological evolution of slopes and can likewise characterize actively retreating coastal cliffs where, in addition, landslides of different typologies and size superimpose in space and time to marine processes. The rocky coast at the Conero promontory (central Adriatic Sea, Italy) offers a rare opportunity for better understanding the
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Zhong, Si Cheng, Kun Yong Zhang, Fang Qing Tang, and Xiong Bing Zhang. "The Stability Analysis for One Failure Slope." Applied Mechanics and Materials 577 (July 2014): 1146–49. http://dx.doi.org/10.4028/www.scientific.net/amm.577.1146.

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On the basis of field investigation, the stability of the slope was calculated by GEO-SLOPE considering several different influence factors. After comparing these calculated safety factors, the reason for the failure slope was found out. Then, combined with the construction process, a comprehensive evaluation was given to this slope about the reason for slope failure. It was put forward the corresponding management measures according to the main reason.
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Hernandez-Carrillo, Rodrigo, and Gloria Beltran. "Updating the probability of failure of rock wedges." Earth Sciences Research Journal 23, no. 3 (July 1, 2019): 225–36. http://dx.doi.org/10.15446/esrj.v23n3.74779.

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In hard rock masses, discontinuities control the slope stability, rather than block matrix breakage. The relative position of joints and slope face defines the most likely mechanisms of failure. Among these mechanisms, the wedge failure is one of the most common ways of failure in which joint sets dip and dip direction, slope geometry and direction, external forces (including water pressure and earthquake) and rock and joints mechanical properties control the stability. The determination of these input parameters is not straightforward, mainly due to their variability and the limited amount of
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