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Bibliografias temáticas / Soil structure

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Literatura científica selecionada sobre o tema "Soil structure"

Autor: Grafiati

Publicado: 4 de junho de 2021

Última modificação: 7 de setembro de 2024

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Artigos de revistas sobre o assunto "Soil structure"

1

Cotching, W. E., e K. C. Belbin. "Assessment of the influence of soil structure on soil strength/soil wetness relationships on Red Ferrosols in north-west Tasmania". Soil Research 45, n.º 2 (2007): 147. http://dx.doi.org/10.1071/sr06113.

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The relationship of soil wetness to soil strength in Red Ferrosols was compared between fields of well structured to degraded soil structure. Soil structure was assessed using a visual rating. Soil resistance measurements were taken over a range of soil wetness, using a recording penetrometer. Readings were taken as the soil dried by evapotranspiration after both irrigation and rainfall events. The influence of soil wetness on penetration resistance was greater on fields with degraded structure than on well-structured fields. In fields with degraded structure, the wetter the soil, the smaller were the penetration resistance values. Field soil structure score was negatively correlated with the slope of the line relating soil wetness and penetration resistance at 150–300 mm depth. The structurally degraded fields had a highly significant relationship between penetration resistance and soil wetness at 150–300 mm depth. In well-structured fields, variations in soil wetness had less effect on penetration resistance. These results indicate that visual assessment can be used with confidence to assess Ferrosol structure. The implications for soil management are that fields with degraded soil structure have greater resistance to root growth at drier moisture contents than well-structured fields. Consequently, farmers need to keep degraded soils wetter with more frequent irrigation than well-structured soils, to ensure optimum plant growth.

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2

JavidSharifi, Behtash, e Sedigheh Gheisari. "EFFECTS OF STRUCTURE HEIGHT ON SEISMIC DEMAND OF MOMENT-RESISTING REINFORCED CONCRETE FRAMES CONSIDERING SOIL-STRUCTURE INTERACTION". NED University Journal of Research XVIII, n.º 1 (1 de janeiro de 2021): 15–32. http://dx.doi.org/10.35453/nedjr-stmech-2020-0006.

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Forces and displacements induced in a building due to structural responses to earthquake excitation are called seismic demands which depend upon the input motion, structural characteristics, site effects and the interaction of structure with soil. Structural response of three laterally non-controlled moment-resisting reinforced concrete frame structures with three different soil conditions are have been investigated in this paper. The soil conditions include loose soil, medium soil and rigid ground. The soil-structure interaction of low-, mid- and high-rise frame structures with the above mentioned soil types was analysed by performing nonlinear response history analyses. A set of eleven earthquake motions was employed in the analyses and maximum structural seismic demands for the frame structures were calculated. It was found that pressure-independent relatively loose sandy soils are not very critical for low-rise structures. On the other hand, pressure-independent relatively loose sandy soils and pressure-independent medium sandy soils are highly critical for mid-rise and high-rise structures, respectively. Categorisation of the soils is performed based on the value ranges of a series of constitutive parameters. Further, fixity of the base is most effective in controlling storey displacements until approximately one-third of the structure height. Medium soil leads to highest maximum base shears in low-rise structures while fixed-base and medium cases, and fixed base state control the behaviours of mid-rise and high-rise structures, respectively.

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Rengasamy, P., e KA Olsson. "Sodicity and soil structure". Soil Research 29, n.º 6 (1991): 935. http://dx.doi.org/10.1071/sr9910935.

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Sodic soils are widespread in Australia reflecting the predominance of sodium chloride in groundwaters and soil solutions. Sodic soils are subject to severe structural degradation and restrict plant performance through poor soil-water and soil-air relations. Sodicity is shown to be a latent problem in saline-sodic soils where deleterious effects are evident only after leaching profiles free of salts. A classification of sodic soils based on sodium adsorption ratio, pH and electrolyte conductivity is outlined. Current understanding of the processes and the component mechanisms of sodic soil behaviour are integrated to form the necessary bases for practical solutions in the long term and to define areas for research. The principles of organic and biological amelioration of sodicity, as alternatives to costly inorganic amendments, are discussed.

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4

Bezih, Kamel, Alaa Chateauneuf e Rafik Demagh. "Effect of Long-Term Soil Deformations on RC Structures Including Soil-Structure Interaction". Civil Engineering Journal 6, n.º 12 (30 de novembro de 2020): 2290–311. http://dx.doi.org/10.28991/cej-2020-03091618.

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Lifetime service of Reinforced Concrete (RC) structures is of major interest. It depends on the action of the superstructure and the response of soil contact at the same time. Therefore, it is necessary to consider the soil-structure interaction in the safety analysis of the RC structures to ensure reliable and economical design. In this paper, a finite element model of soil-structure interaction is developed. This model addresses the effect of long-term soil deformations on the structural safety of RC structures. It is also applied to real RC structures where soil-structure interaction is considered in the function of time. The modeling of the mechanical analysis of the soil-structure system is implemented as a one-dimensional model of a spring element to simulate a real case of RC continuous beams. The finite element method is used in this model to address the nonlinear time behavior of the soil and to calculate the consolidation settlement at the support-sections and the bending moment of RC structures girders. Numerical simulation tests with different loading services were performed on three types of soft soils with several compressibility parameters. This is done for homogeneous and heterogeneous soils. The finite element model of soil-structure interaction provides a practical approach to show and to quantify; (1) the importance of the variability of the compressibility parameters, and (2) the heterogeneity soil behavior in the safety RC structures assessment. It also shows a significant impact of soil-structure interaction, especially with nonlinear soil behavior versus the time on the design rules of redundant RC structures. Doi: 10.28991/cej-2020-03091618 Full Text: PDF

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5

Cheng, C., D. Zhao, D. Lv, S. Li e G. Du. "Comparative study on microbial community structure across orchard soil, cropland soil, and unused soil". Soil and Water Research 12, No. 4 (9 de outubro de 2017): 237–45. http://dx.doi.org/10.17221/177/2016-swr.

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We examined the effects of three different soil conditions (orchard soil, cropland soil, unused soil) on the functional diversity of soil microbial communities. The results first showed that orchard and cropland land use significantly changed the distribution and diversity of soil microbes, particularly at surface soil layers. The richness index (S) and Shannon diversity index (H) of orchard soil microbes were significantly higher than the indices of the cropland and unused soil treatments in the 0–10 cm soil layer, while the S and H indices of cropland soil microbes were the highest in 10–20 cm soil layers. Additionally, the Simpson dominance index of cropland soil microbial communities was the highest across all soil layers. Next, we found that carbon source differences in soil layers under the three land use conditions can mainly be attributed to their carbohydrate and polymer composition, indicating that they are the primary cause of the functional differences in microbial communities under different land uses. In conclusion, orchard and cropland soil probably affected microbial distribution and functional diversity due to differences in vegetation cover, cultivation, and management measures.

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6

Aliboeva, M. A. "Morphological Structure Of Mountain Soils". American Journal of Agriculture and Biomedical Engineering 03, n.º 12 (30 de dezembro de 2021): 33–37. http://dx.doi.org/10.37547/tajabe/volume03issue12-08.

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This article discusses morphological structure of mountain soils. The mountainous regions of the Republic of Uzbekistan are located mainly in Tashkent, Surkhandarya, Samarkand, Jizzakh, Syrdarya, Fergana Valley and Navoi regions, and differ from each other in their greenery, charm and structure. Mountain soils are distributed sequentially according to the law of vertical zoning, depending on the altitude above sea level. The soil cover in these regions is characterized by their development (evolution), genesis, agrochemical, agrophysical properties and, most importantly, morphological structure. Each region has its own natural factors, which directly affect the development and morphological structure of the soil cover.

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7

Kolaki, Aravind I., e Basavaraj M. Gudadappanavar. "Performance Based Analysis of Framed Structure Considering Soil Structure Interaction". Bonfring International Journal of Man Machine Interface 4, Special Issue (30 de julho de 2016): 106–11. http://dx.doi.org/10.9756/bijmmi.8165.

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8

Zhai, Zhanghui, Yaguo Zhang, Shuxiong Xiao e Tonglu Li. "Undrained Elastoplastic Solution for Cylindrical Cavity Expansion in Structured Cam Clay Soil Considering the Destructuration Effects". Applied Sciences 12, n.º 1 (3 de janeiro de 2022): 440. http://dx.doi.org/10.3390/app12010440.

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Soil structure has significant influences on the mechanical behaviors of natural soils, although it is rarely considered in previous cavity expansion analyses. This paper presents an undrained elastoplastic solution for cylindrical cavity expansion in structured soils, considering the destructuration effects. Firstly, a structural ratio was defined to denote the degree of the initial structure, and the Structured Cam Clay (SCC) model was employed to describe the subsequent stress-induced destructuration, including the structure degradation and crushing. Secondly, combined with the large strain theory, the considered problem was formulated as a system of first-order differential equations, which can be solved in a simplified procedure with the introduced auxiliary variable. Finally, the significance and efficiency of the present solution was demonstrated by comparing with the previous solutions, and parametric studies were also conducted to investigate the effects of soil structure and destructuration on the cavity expansion process. The results show that the soil structure has pronounced effects on the mechanical behavior of structured soils around the cavity. For structured soils, a cavity pressure that is larger than the corresponding reconstituted soils when the cavity expands to the same radius is required, and the effective stresses first increase to a peak value before decreasing rapidly with soil structure degradation and crushing. The same final critical state is reached for soils with different degrees of the initial structure, which indicates that the soil structure is completely destroyed during the cavity expansion. With the increase of the destructuring index, the soil structure was destroyed more rapidly, and the stress release during the plastic deformation became more significant. Moreover, the present solution was applied in the jacking of a casing during the sand compact pile installation and in situ self-boring pressuremeter (SBPM) tests, which indicates that the present solution provides an effective theoretical tool for predicting the behavior of natural structured soils around the cavity.

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9

Liu, M. D., e J. P. Carter. "A structured Cam Clay model". Canadian Geotechnical Journal 39, n.º 6 (1 de dezembro de 2002): 1313–32. http://dx.doi.org/10.1139/t02-069.

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A theoretical study of the behaviour of structured soil is presented. A new model, referred to as the Structured Cam Clay model, is formulated by introducing the influence of soil structure into the Modified Cam Clay model. The proposed model is hierarchical, i.e., it is identical to the Modified Cam Clay soil model if a soil has no structure or if its structure is removed by loading. Three new parameters describing the effects of soil structure are introduced, and the results of a parametric study are also presented. The proposed model has been used to predict the behaviour of structured soils in both compression and shearing tests. By making comparisons of predictions with experimental data and by conducting the parametric study it is demonstrated that the new model provides satisfactory qualitative and quantitative modelling of many important features of the behaviour of structured soils.Key words: calcareous soils, clays, fabric, structure, constitutive relations, plasticity.

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10

Xu, Bin Bin. "Influence of Soil Structure on the Mechanical Response of Soft Soil". E3S Web of Conferences 38 (2018): 03027. http://dx.doi.org/10.1051/e3sconf/20183803027.

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Usually the natural sedimentary soils possess structure more or less, which makes their mechanical response much different from the fully remolded soils. In this paper, the influence of soil structure on the mechanical response such as compressibility, shear, permeability is literately reviewed. It is found that the compressibility and consolidation behavior of structured and remolded soils can be divided clearly before or after the structural yield stress. The stress-strain relationship can be divided into two segments before and after the structural yield stress. Before the yield stress, the curve is elevating and after the yield stress the curve is decreasing. The increasing rate of pore water pressure increases after the soil reached yield stress.

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Teses / dissertações sobre o assunto "Soil structure"

1

Grieger, Gayle. "The effect of mineralogy and exchangeable magnesium on the dispersive behaviour of weakly sodic soils /". Title page, table of contents and abstract only, 1999. http://web4.library.adelaide.edu.au/theses/09PH/09phg8478.pdf.

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2

Corneo, Paola Elisa. "Understanding soil microbial community dynamics in vineyard soils: soil structure, climate and plant effects". Doctoral thesis, country:CH, 2013. http://hdl.handle.net/10449/23970.

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This thesis aimed at characterising the structure of the bacterial and fungal community living in vineyard soils, identifying and describing the parameters that explain the distribution of the microbial communities in this environment. Vineyards represent an economical relevant agro-ecosystem, where vines, long-lived woody-perennial plants, are normally cultivated at different altitudes. The maintenance of the soil quality is at the base of a productive agriculture and thus the investigation of its biological component, its structure and all the processes that take place into the soil are of importance. Microorganisms represent one of the main biological components of the soil and they are involved in numerous bio-geochemical processes, such as nutrient cycling and degradation of the soil organic matter (SOM). The understanding of the effect of abiotic and biotic factors on the soil microbial communities is crucial for the maintenance of this agro-ecosystem. Considering that viticulture is widespread in North Italy we selected the Trentino region as study area at the basis of our investigations. A first on field study was carried out on soils collected in nine vineyards located along three altitudinal transects. The sites were selected on the basis of the same soil origin, texture and pH, and similar weather conditions. Our aim was to understand the effect of altitude considered as a climatic and physicochemical gradient on the soil bacterial and fungal community, comparing the soil microbial structure at different altitudes (200, 450, 700 m a.s.l.) and in different seasons. Along these altitudinal gradients, soil temperature is decreasing while soil moisture is increasing, thus offering an experimental design to investigate the effect of these climatic parameters. To further exploit the effect of soil temperature, we then carried out one year microcosm experiment. Temperature is one of the main factors affecting soil microbial communities and the recent worries about climate change stimulated the interest in a better understanding of its effect. Our aim was to assess the effect of temperature alone, isolating its effect from all the other parameters present in the field. In particular we investigated the effect of soil seasonal temperature fluctuations and the effect of a moderate soil warming of 2 °C above normal seasonal temperatures. Furthermore we assessed the effect of stable temperatures without fluctuations (3 and 20°C). To fully characterise the vineyard environment we conducted a third experiment to understand the effect of weeds and of soil type on the bacterial and fungal community structure, to reflect on their role in this environment. Weeds are widespread plants in the vineyards and are usually controlled because they compete for nutrients with vines. Through a greenhouse experiment where we used a combination of three different weeds (Taraxacum officinalis, Trifolium repens and Poa trivialis) and four different soils collected in vineyard, we aimed at characterising the bacterial and fungal communities of the bulk and rhizosphere soil and of the roots. The genetic structure of the soil bacterial and fungal communities in the three different experiments was assessed by automated ribosomal intergenic spacer analysis (ARISA), a fingerprinting technique based on the analysis of the length heterogeneity of the bacterial and fungal internal transcribed spacer (ITS) fragment. Multivariate analyses were carried out to visualise and determine the effect of the different parameters investigated on the soil microbial community ordination. We found that altitude, behaving as a physicochemical gradient separates the soil microbial community living at 200 and 700 m a.s.l. Different parameters correlating with altitude explained the distribution of bacteria and fungi in the altitudinal transects. Qualitatively the different vineyards were characterised by a stable core microbiome, a number of ribotypes stable in time and space. Among the climatic parameters, while soil moisture was correlating with altitude and helped explaining the distribution of the microbial communities, the soil temperature did not play any role. Seasonally the soil microbial communities were stable and the differences among the soil microbial communities living at the lower and higher sites were related to the physicochemical parameters and not to the temperature effect. Investigating the effect of temperature in microcosm experiment, isolating its effect from all the other parameters, we determined the presence of a direct effect of temperature, soil type dependent. The soil bacterial community was fluctuating under the effect of temperature fluctuations, while the fungal community was mainly stable. Soil warming did not have any effect on the microbial community as observed on field in the altitudinal gradient, where temperature was not the factor explaining the differences between the microbial community at 200 and 700 m a.s.l. Vineyards, as other temperate environments, are quite stable to subtle changes in soil temperatures in the range forecasted by the climate change events. Even if we did not find a direct effect of temperature on the soil microbial communities, temperature could indirectly affect the soil microorganisms, acting on plant cover, nutrients availability, soil moisture and plant exudation. The soil structure was the main determinant of the microbial community associated to the bulk soil also in presence of plants. Characterising the microbial community associated to the weeds, we found that the different compartments (roots, rhizosphere and bulk soil) were colonised by qualitatively and quantitative different microbial structure, in particular on the roots. Differences in the microbial community associated to the rhizosphere and to the bulk soil were plant type dependent. The structure of the microbial community associated to the roots was mainly determined by the plant species, while the soil type was the main determinant of the microbial community associated to the bulk soil. Weeds are not expected to particularly affect the bacterial community associated to the bulk soil in vineyards, while they could play a role shaping the soil fungal community

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3

Brandsma, Richard Theodorus. "Soil conditioner effects on soil erosion, soil structure and crop performance". Thesis, University of Wolverhampton, 1997. http://hdl.handle.net/2436/99094.

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4

Li, Xu. "Dual-porosity structure and bimodal hydraulic property functions for unsaturated coarse granular soils /". View abstract or full-text, 2009. http://library.ust.hk/cgi/db/thesis.pl?CIVL%202009%20LI.

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5

Gandomzadeh, Ali. "Dynamic soil-structure interaction : effect of nonlinear soil behavior". Phd thesis, Université Paris-Est, 2011. http://tel.archives-ouvertes.fr/tel-00648179.

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The interaction of the soil with the structure has been largely explored the assumption of material and geometrical linearity of the soil. Nevertheless, for moderate or strong seismic events, the maximum shear strain can easily reach the elastic limit of the soil behavior. Considering soil-structure interaction, the nonlinear effects may change the soil stiffness at the base of the structure and therefore energy dissipation into the soil. Consequently, ignoring the nonlinear characteristics of the dynamic soil-structure interaction (DSSI) this phenomenon could lead toerroneous predictions of structural response. The goal of this work is to implement a fully nonlinear constitutive model for soils into anumerical code in order to investigate the effect of soil nonlinearity on dynamic soil structureinteraction. Moreover, different issues are taken into account such as the effect of confining stress on the shear modulus of the soil, initial static condition, contact elements in the soil-structure interface, etc. During this work, a simple absorbing layer method based on a Rayleigh / Caughey damping formulation, which is often already available in existing. Finite Element softwares, is also presented. The stability conditions of the wave propagation problems are studied and it is shown that the linear and nonlinear behavior are very different when dealing with numerical dispersion. It is shown that the 10 points per wavelength rule, recommended in the literature for the elastic media is not sufficient for the nonlinear case. The implemented model is first numerically verified by comparing the results with other known numerical codes. Afterward, a parametric study is carried out for different types of structures and various soil profiles to characterize nonlinear effects. Different features of the DSSI are compared to the linear case : modification of the amplitude and frequency content of the waves propagated into the soil, fundamental frequency, energy dissipation in the soil and the response of the soil-structure system. Through these parametric studies we show that depending on the soil properties, frequency content of the soil response could change significantly due to the soil nonlinearity. The peaks of the transfer function between free field and outcropping responsesshift to lower frequencies and amplification happens at this frequency range. Amplificationreduction for the high frequencies and even deamplication may happen for high level inputmotions. These changes influence the structural response.We show that depending on the combination of the fundamental frequency of the structureand the the natural frequency of the soil, the effect of soil-structure interaction could be significant or negligible. However, the effect of structure weight and rocking of the superstructurecould change the results. Finally, the basin of Nice is used as an example of wave propagation ona heterogeneous nonlinear media and dynamic soil-structure interaction. The basin response isstrongly dependent on the combination of soil nonlinearity, topographic effects and impedancecontrast between soil layers. For the selected structures and soil profiles of this work, the performed numerical simulations show that the shift of the fundamental frequency is not a goodindex to discriminate linear from nonlinear soil behavior

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6

Chen, Chien-chang. "Shear induced evolution of structure in water-deposited sand specimens". Diss., Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/22724.

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Rouaiguia, Ammar. "Strength of soil-structure interfaces". Thesis, Loughborough University, 1990. https://dspace.lboro.ac.uk/2134/26883.

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This research work deals with the development of the shearbox apparatus by introducing a micro-computer to automatically collect all the results, and to apply normal and shear stresses. A continuous statement of time, channel number, and transducer input and output is produced for each test, the sequences of applied rates of displacement and normal stresses for which were programmed.

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8

Miller, Kendall Mar 1958. "INTERPRETIVE SCHEME FOR MODELING THE SPATIAL VARIATION OF SOIL PROPERTIES IN 3-D (AUTOCORRELATION, STOCHASTIC, PROBABILITY)". Thesis, The University of Arizona, 1986. http://hdl.handle.net/10150/276981.

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9

Sribalaskandarajah, Kandiah. "A computational framework for dynamic soil-structure interaction analysis /". Thesis, Connect to this title online; UW restricted, 1996. http://hdl.handle.net/1773/10180.

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10

Nelson, Paul Netelenbos. "Organic matter in sodic soils : its nature, decomposition and influence on clay dispersion". Title page, contents and abstract only, 1997. http://web4.library.adelaide.edu.au/theses/09PH/09phn4281.pdf.

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Bibliography: leaves 147-170. Aims to determine the influence of sodicity on the nature and decomposition of organic matter; and the influence of organic matter and its components on the structural stability of sodic soils.

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Mais fontes

Livros sobre o assunto "Soil structure"

1

L, Brussaard, Kooistra M. J e International Workshop on Methods of Research on Soil Structure / Soil Biota Interrelationships (International Agricultural Centre, Wageningen : 1991), eds. Soil structure / soil biota interrelationships. Amsterdam: Elsevier, 1993.

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2

BULL, JOHN W. SOIL STRUCTURE INTERACTION. Abingdon, UK: Taylor & Francis, 1988. http://dx.doi.org/10.4324/9780203474891.

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3

S, Cakmak A., ed. Soil-structure interaction. Amsterdam: Elsevier, co-published with Computational Mechanics, 1987.

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4

S, Cakmak A., e International Conference on Soil Dynamics and Earthquake Engineering (3rd : 1987 : Princeton University), eds. Soil-structure interaction. Amsterdam: Elsevier, 1987.

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5

S, Cakmak A., ed. Soil-structure interaction. Amsterdam: Elsevier, co-published with Computational Mechanics, 1987.

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6

National Research Council (U.S.). Transportation Research Board., ed. Soil-structure interaction. Washington, D.C: Transportation Research Board, National Research Council, 1987.

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7

International Conference on Soil Dynamics and Earthquake Engineering (4th 1989 Mexico City, Mexico). Structural dynamics and soil-structure interaction. Editado por Cakmak A. S. 1934- e Herrera Ismael. Ashurst: Computational Mechanics, 1989.

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8

Fanning, Delvin Seymour. Soil. New York: Wiley, 1989.

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9

M, Huang P., Senesi N e Buffle J. 1943-, eds. Structure and surface reactions of soil particles. Chichester: Wiley, 1998.

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10

Nawawi, Chouw, e Pender Michael J, eds. Soil-Foundation-Structure Interaction. Abingdon: CRC Press [Imprint], 2010.

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Capítulos de livros sobre o assunto "Soil structure"

1

Mukherjee, Swapna. "Soil Structure". In Current Topics in Soil Science, 67–75. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-92669-4_7.

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2

Vrettos, Christos. "Soil-Structure Interaction". In Encyclopedia of Earthquake Engineering, 1–16. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-36197-5_141-1.

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3

Jia, Junbo. "Soil–Structure Interaction". In Soil Dynamics and Foundation Modeling, 177–90. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-40358-8_5.

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4

Vrettos, Christos. "Soil-Structure Interaction". In Encyclopedia of Earthquake Engineering, 3315–27. Berlin, Heidelberg: Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-642-35344-4_141.

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5

Saouma, Victor E., e M. Amin Hariri-Ardebili. "Soil Structure Interaction". In Aging, Shaking, and Cracking of Infrastructures, 353–79. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-57434-5_15.

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6

Vaziri, Mohsen. "Soil–Structure Interaction". In Structural Design of Buildings: Holistic Design, 105–36. Leeds: Emerald Publishing Limited, 2024. http://dx.doi.org/10.1680/978-1-83549-560-520241006.

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7

"Soil structure". In Soil Physics, 199–228. Cambridge University Press, 1996. http://dx.doi.org/10.1017/cbo9781139170673.011.

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8

"structure soil". In Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik, 1336. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_198424.

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9

Schlüter, Steffen, e John Koestel. "Soil structure". In Reference Module in Earth Systems and Environmental Sciences. Elsevier, 2022. http://dx.doi.org/10.1016/b978-0-12-822974-3.00134-8.

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"Soil Structure". In Soil Physics Companion, 261–308. CRC Press, 2001. http://dx.doi.org/10.1201/9781420041651-10.

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Trabalhos de conferências sobre o assunto "Soil structure"

1

Anderson, L. M., S. Carey e J. Amin. "Effect of Structure, Soil, and Ground Motion Parameters on Structure-Soil-Structure Interaction of Large Scale Nuclear Structures". In Structures Congress 2011. Reston, VA: American Society of Civil Engineers, 2011. http://dx.doi.org/10.1061/41171(401)249.

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2

Fares, Reine, Maria Paola Santisi d'Avila, Anne Deschamps e Evelyne Foerster. "STRUCTURE-SOIL-STRUCTURE INTERACTION ANALYSIS FOR REINFORCED CONCRETE FRAMED STRUCTURES". In XI International Conference on Structural Dynamics. Athens: EASD, 2020. http://dx.doi.org/10.47964/1120.9231.19162.

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3

Maravas, Andreas, George Mylonakis e Dimitris L. Karabalis. "Dynamic Soil-Structure Interaction for SDOF Structures on Footings and Piles". In Geotechnical Earthquake Engineering and Soil Dynamics Congress IV. Reston, VA: American Society of Civil Engineers, 2008. http://dx.doi.org/10.1061/40975(318)132.

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4

Edip, Kemal, Jordan Bojadjiev, Done Nikolovski e Julijana Bojadjieva. "SEISMIC SOIL-STRUCTURE INTERACTION EFFECTS ON A HIGH RISE RC BUILDING". In 2nd Croatian Conference on Earthquake Engineering. University of Zagreb Faculty of Civil Engineering, 2023. http://dx.doi.org/10.5592/co/2crocee.2023.62.

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Soil-structure interaction (SSI) is for sure one of the most neglected effects in seismic structural design practice. However, many researchers showed that it might notably affect seismic performance results. In fact, the state-of-the-art seismic codes are encouraging including SSI for structures with considerable p-Δ effects and mid to high-rise buildings. In the current research, seismic soil-structure interaction analysis is made for a selected mid-rise reinforced concrete building with several different SSI techniques (models). In order to quantify the effect of SSI on the overall response of the selected structure, the global seismic response within a frame of force-displacement relationship for different earthquake intensities, different SSI mathematical models and different soil categories is presented. Comparing the outcome of the performed analysis it was observed that the structural performance was affected significantly by the foundation system and contributes considerably to the overall structural performance of the selected structure in specific soil conditions. As the results indicate, more code-based recommendations are required for the improvement of the SSI structural seismic design, especially in soft soil cases, where the soil-structure interaction might significantly affect the seismic response of buildings.

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5

Banks, James, Alan Bloodworm, Thomas Knight e Jeffery Young. "Integral Bridges — Development of a Constitutive Soil Model for Soil Structure Interaction". In Structures Congress 2008. Reston, VA: American Society of Civil Engineers, 2008. http://dx.doi.org/10.1061/41016(314)278.

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6

Abdoun, T., A. Abe, V. Bennett, L. Danisch, M. Sato, K. Tokimatsu e J. Ubilla. "Wireless Real Time Monitoring of Soil and Soil-Structure Systems". In Geo-Denver 2007. Reston, VA: American Society of Civil Engineers, 2007. http://dx.doi.org/10.1061/40905(224)5.

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7

Ham, Soo-Min, Alexandra Camille San Pablo, Jose Luis Caisapanta e Jason DeJong. "Centrifuge Modeling of Soil-Structure Interaction with MICP Improved Soil". In Geo-Congress 2024. Reston, VA: American Society of Civil Engineers, 2024. http://dx.doi.org/10.1061/9780784485330.010.

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8

Goodson, Mary W., e John E. Anderson. "Soil-Structure Interaction — a Case Study". In Structures Congress 2005. Reston, VA: American Society of Civil Engineers, 2005. http://dx.doi.org/10.1061/40753(171)94.

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9

Yang, Han, Yuan Feng, Sumeet K. Sinha, Hexiang Wang e Boris Jeremić. "Energy Dissipation in Soil Structure Interaction System". In Geotechnical Earthquake Engineering and Soil Dynamics V. Reston, VA: American Society of Civil Engineers, 2018. http://dx.doi.org/10.1061/9780784481479.015.

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10

Reumers, Pieter, Kirsty Kuo, Geert Lombaert e Geert Degrande. "RESPONSE OF PERIODIC ELEVATED STRUCTURES ACCOUNTING FOR SOIL-STRUCTURE INTERACTION". In 7th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering Methods in Structural Dynamics and Earthquake Engineering. Athens: Institute of Structural Analysis and Antiseismic Research School of Civil Engineering National Technical University of Athens (NTUA) Greece, 2019. http://dx.doi.org/10.7712/120119.7334.19107.

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Relatórios de organizações sobre o assunto "Soil structure"

1

Miller, C., C. Costantino, A. Philippacopoulos e M. Reich. Verification of soil-structure interaction methods. Office of Scientific and Technical Information (OSTI), maio de 1985. http://dx.doi.org/10.2172/5507213.

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2

Spears, Robert Edward, e Justin Leigh Coleman. Nonlinear Time Domain Seismic Soil-Structure Interaction (SSI) Deep Soil Site Methodology Development. Office of Scientific and Technical Information (OSTI), setembro de 2015. http://dx.doi.org/10.2172/1371516.

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3

Costantino, C., e A. Philippacopoulos. Influence of ground water on soil-structure interaction. Office of Scientific and Technical Information (OSTI), dezembro de 1987. http://dx.doi.org/10.2172/5529456.

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4

Philippacopoulos, A. Soil-structure interaction. Volume 1. Influence of layering. Office of Scientific and Technical Information (OSTI), abril de 1986. http://dx.doi.org/10.2172/5825767.

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5

Costantino, C. Soil-structure interaction. Volume 3. Influence of ground water. Office of Scientific and Technical Information (OSTI), abril de 1986. http://dx.doi.org/10.2172/5646537.

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6

Gantzer, Clark J., Shmuel Assouline e Stephen H. Anderson. Synchrotron CMT-measured soil physical properties influenced by soil compaction. United States Department of Agriculture, fevereiro de 2006. http://dx.doi.org/10.32747/2006.7587242.bard.

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Methods to quantify soil conditions of pore connectivity, tortuosity, and pore size as altered by compaction were done. Air-dry soil cores were scanned at the GeoSoilEnviroCARS sector at the Advanced Photon Source for x-ray computed microtomography of the Argonne facility. Data was collected on the APS bending magnet Sector 13. Soil sample cores 5- by 5-mm were studied. Skeletonization algorithms in the 3DMA-Rock software of Lindquist et al. were used to extract pore structure. We have numerically investigated the spatial distribution for 6 geometrical characteristics of the pore structure of repacked Hamra soil from three-dimensional synchrotron computed microtomography (CMT) computed tomographic images. We analyzed images representing cores volumes 58.3 mm³ having average porosities of 0.44, 0.35, and 0.33. Cores were packed with < 2mm and < 0.5mm sieved soil. The core samples were imaged at 9.61-mm resolution. Spatial distributions for pore path length and coordination number, pore throat size and nodal pore volume obtained. The spatial distributions were computed using a three-dimensional medial axis analysis of the void space in the image. We used a newly developed aggressive throat computation to find throat and pore partitioning for needed for higher porosity media such as soil. Results show that the coordination number distribution measured from the medial axis were reasonably fit by an exponential relation P(C)=10⁻C/C0. Data for the characteristic area, were also reasonably well fit by the relation P(A)=10⁻ᴬ/ᴬ0. Results indicates that compression preferentially affects the largest pores, reducing them in size. When compaction reduced porosity from 44% to 33%, the average pore volume reduced by 30%, and the average pore-throat area reduced by 26%. Compaction increased the shortest paths interface tortuosity by about 2%. Soil structure alterations induced by compaction using quantitative morphology show that the resolution is sufficient to discriminate soil cores. This study shows that analysis of CMT can provide information to assist in assessment of soil management to ameliorate soil compaction.

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7

Snyder, Victor, e Amos Hadas. Maintaining Soil Tilth and Preferred Soil Structure under Intensive Field Mechanization through Water Management and Tillage. United States Department of Agriculture, junho de 1992. http://dx.doi.org/10.32747/1992.7603510.bard.

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8

Bolisetti, Chandu, Justin Coleman, Mohamed Talaat e Philip Hashimoto. Advanced Seismic Fragility Modeling using Nonlinear Soil-Structure Interaction Analysis. Office of Scientific and Technical Information (OSTI), setembro de 2015. http://dx.doi.org/10.2172/1371513.

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9

Bolisetti, Chandrakanth, e Justin Leigh Coleman. Light Water Reactor Sustainability Program Advanced Seismic Soil Structure Modeling. Office of Scientific and Technical Information (OSTI), junho de 2015. http://dx.doi.org/10.2172/1235205.

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10

Wright, Alan L., e Edward A. Hanlon. Organic matter and soil structure in the Everglades Agricultural Area. Office of Scientific and Technical Information (OSTI), janeiro de 2013. http://dx.doi.org/10.2172/1337170.

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