Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 13 of 13 for “"soil deformation"”.
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An experimental study and numerical simulation of sand-steel interface behaviour.
In a soil-structure interface test, the soil sample consists of two parts: the soil mass and the interface layer. In the previous experimental investigations of the soil-structure interface problems, the soil deformation in the interface layer was not measured separately from the soil deformation …
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Finite Element Modeling and Experimental Validation for Off-Road Tire Performance
Off-road vehicles often need to traverse soft soils such as clay or dirt, which can lead to immobilized vehicles. This is particularly important for military and agricultural applications, where reliable performance is crucial for mission success and high crop yields. This project aims to gain a …
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Contribuição ao cálculo de recalques de estacas
… diagram. The main purpose is to evaluate the deformation behaviour of deep foundations, by means of simple methods that require a small amount of geotechnical data which are available for the design in foundation engineering. Sophisticated numerical methods like the Finite Element Method or …
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Soil-Foundation-Structure Interaction in the Earthquake Performance of Multi-Storey Buildings on Shallow Foundations
The influence of nonlinear soil-foundation-structure interaction (SFSI) on the performance of multi-storey buildings during earthquake events has become increasingly important in earthquake resistant design. For buildings on shallow foundations, SFSI refers to nonlinear geometric effects associated …
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Impact Characterization of Earth Entry Vehicle for Terminal Landing (on Soil)
… of materials, finite element simulations of soil/EEV impact were created using the program LS-DYNA. Various modeling techniques were analyzed for accuracy through comparison with physical test data when available. Through variation of numerical methods, mesh density, and material definition, …
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A structure from motion photogrammetric method for continuously measuring and tracking the deformations of soils during triaxial testing
<p>"Measuring soil deformation characteristics during triaxial testing is an important part of characterizing the stress-strain behavior of both saturated and unsaturated soils. The total and local deformations and volume changes of a soil specimen are indispensable parameters that need to be …
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ALE and CEL formulations of pile installation in sand
Numerical simulation of large deformation problem is challenging due to various factors including large soil deformation, non-linear behavior of soil, the potential influence of pore water, and high computation cost. This work presents a a sophisticated numerical model which addresses the …
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An Investigation into the Seismic Resilience of Shallow Cut-and-Cover Tunnel in Urban Environments
… of shallow-buried tunnels in liquefiable soils is critical for the seismic design of underground infrastructure, particularly in congested urban areas, where interactions with adjacent surface structures further complicate this dynamic soil-structure interaction (SSI). This dissertation …
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The dynamic soil structure interaction of shallow foundations on dry sand beds
… movements between the foundation and underlying soil. This results in a rigid coupling of the foundation with the soil and hence the full transmission of the seismic energy into the foundation. Consequently the structure located on the foundation either has to be isolated from the shaking through …
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Advanced Interaction Analysis for Foundation Design and Coastal Cliff Stability
… challenges arising from the combined effects of soil behaviour, wave loading, and progressive cliff erosion. The stability of these areas is critical for the safety and sustainability of coastal infrastructure. Current approaches often fail to fully integrate the coupled effects of hydrodynamic …
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Peridynamic Modeling of Coupled Mechanical Deformations and Transient Flow in Unsaturated Soils
<p>A coupled peridynamic model for mechanical deformations and transient moisture flow in unsaturated soils is developed. The model is capable of simulating the emergence and evolution of cracks triggered by volumetric strains in the soil which are associated with changes in moisture content. The …
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Effects of severe cattle treading on soil physical properties and pasture productivity
… one of the severest forms of treading damage to soil, and occurs when soil is grazed while near saturation, resulting in plastic and liquid soil deformation. The research objectives were to quantify effects from one-off treading events, at different severities, on soil physical properties and …
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IMPACT OF SOIL-STRUCTURE INTERACTION ON SEISMIC BEHAVIOUR OF INTEGRAL ABUTMENT BRIDGES
… of the bridge with the backfill and foundation soils. Therefore, the bridge deforms more of the backfill and foundation soil. This mechanism results in increased stresses induced on the bridge due to the deformation of the backfill soil and, therefore, can compromise its structural integrity. In …