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Showing 1 to 16 of 16 for “"pore pressure generation"”.
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Factors controlling pore pressure generation during K₀ consolidation of laboratory tests
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1998.
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Pore pressure generation and liquefaction analysis using nonlinear, effective stress-based site response analysis
Open Restriction set for Item 109954 on 2020-05-12T14:03:02Z with date null by fschaef2@illinois.edu.
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2-D NON-LINEAR FINITE ELEMENT ANALYSIS OF FOLSOM DAM: SEISMICALLY INDUCED SEPARATION AND PORE PRESSURE ALONG THE SOIL-CONCRETE INTERFACE
… of bonding/debonding behavior may induce excess pore pressure along the interface, which in turn, may trigger a liquefaction failure or a hydraulic fracture in the soil. This study evaluates the potential for separation and excess pore pressure generation at the soil-concrete interface of Folsom …
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Modelling the impact of total stress changes on groundwater flow
… of a salt tailings pile. Total stress and pore-pressure data observed at the Lanigan and Rocanville potash-mine sites were used to assist the development of a generic FEMWATER model. The original 3-D mesh considered for model study covers a region of 7.6 km x 7.6 km x 60 m. The simulated …
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The Effects Of Non-Plastic and Plastic Fines On The Liquefaction Of Sandy Soils
… the effects of fines content and plasticity on pore pressure generation. Lastly, a review of how the findings of this study may affect the manner in which simplified analyses are performed in engineering practice was made. The results of the study performed are used to clarify the effects of …
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Energy-Based Evaluation and Remediation of Liquefiable Soils
… This hypothesis is supported by energy-based pore pressure generation models, which functionally relate dissipated energy to residual excess pore pressures. Assuming a linearized hysteretic model, a "simplified" expression is derived for computing the energy dissipated in the soil during an …
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Effects of nonhomogeneous cementation in soils on resistance to earthquake effects
… statically loaded samples; and, to describe the pore pressure generation of sands subjected to cyclic loading. Prior to commencing the test program, a number of index tests were performed on the uncemented and cemented sand used during the laboratory investigation. It was revealed that …
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Assessment of the Cyclic Strain Approach for the Evaluation of Initial Liquefaction
… under which there is no development of excess pore pressures, and the unique relationship between pore pressure ratio and cyclic shear strain, γc, make a compelling argument for using a strain-based approach. However, the cyclic strain approach has not yet been standardized for field …
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Multi-Scale Thermo-Hydro-Mechanical Behavior of Saturated Earth Materials
… is critical to ensure reliable thermally induced pore water pressure measurements and estimates of thermally induced volumetric strains of tested specimens. Then, thermally induced water flow and pore pressure generation under partial drainage conditions are formulated to account for the effect of …
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Development of an Energy-based Liquefaction Evaluation Procedure
… to the stress-based framework because excess pore pressure generation (and, in turn, liquefaction triggering) is more directly related to strains than stresses. However, the method has some inherent and potentially fatal limitations in not being able to appropriately define both the amplitude …
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Ground Improvement for Liquefaction Mitigation at Existing Highway Bridges
… improved ground behavior is influenced by excess pore water pressure migration, ground motion amplification, inertial force phasing, dynamic component of liquefied soil pressure, presence of a supported structure, and lateral spreading forces. Simplified, uncoupled analytical methods were unable …
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An Investigation into the Seismic Resilience of Shallow Cut-and-Cover Tunnel in Urban Environments
… displacement, governed primarily by excess pore pressure generation and reduction in soil shear stiffness. A detailed force mechanism in both vertical and horizontal directions is then further developed to explain the resulting tunnel uplift and lateral movements in liquefied soils, …
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Seismic site response analysis and extraction of dynamic soil behavior and pore pressure response from downhole array measurements
… in the knowledge of shear-induced excess pore pressure generation has led to the development and implementation of pore pressure response models for site response analysis with effective stress consideration. This thesis chiefly regards the further development of an inverse analysis …
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Seismic behaviour of shallow foundations on layered liquefiable soils
… settlement. These parameters are the bearing pressure of<br/>the foundation, the thickness of the liquefied soil layer and the soil's relative<br/>density. The effect of the soil layering pattern was also investigated, with<br/>particular attention to the effect of a low permeability soil …
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Análisis, modelización e implementación Numérica del comportamiento de suelos Blandos ante la combinación de tensiones Tangenciales estáticas y cíclicas
… which are similar to certain conditions of pressure under the foundation level of structures, some elements of the same cohesive soil tend, in some cases, to failure developing so, mainly cycles shear strains and in other cases, other elements tend to fail preferably developing so mainly …
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Performance of drains in earthquake-induced liquefaction mitigation under new and existing buildings
… to reduce damage, as rapid dissipation of excess pore pressures can be achieved in case of liquefaction. However, further research using physical and numerical modelling techniques, centred on the behaviour of drain arrangements below structures is required in order to generate knowledge …