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Showing 1 to 11 of 11 for “"porewater pressure"”.
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Seismic site response analysis with porewater pressure generation
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2025-08-01
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Compressibilidade unidimensional da argila cinza do Rio de Janeiro em Botafogo
… consolidation caused by reduction of hydraulic pressure of a confined watertable. The equipment utilized, a hydraulic oedometer manufactured by W. Farrance Co. permitted the use of back pressure and the measurement of porewater pressure on the non-drained surface. Comparisons are made between …
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An investigation of liquefied shear strength using novel centrifuge tests, direct simple shear tests, and field case histories
… data pairs of su(liq) and CPT tip resistance. Porewater pressure along the coupon shear surface was directly measured using a miniature pressure transducer embedded in the coupon. With similar initial states, the variation of coupon velocity induced different degrees of dilation and led to two …
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Drained cyclic preshearing effects on the liquefaction resistance of sands
… of the energy-based GMP model for predicting porewater pressure generation in presheared soils and to examine how the concept of dissipated energy can be applied to cyclic simple shear tests on presheared sands to characterize the combined effects that amplitude and duration of preshearing …
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Ground improvement using vacuum preloading together with prefabricated vertical drains
… have been reported in the literature. The vacuum pressure, which is applied to the soft soil through the vertical drains, results in an isotropic increase in effective stress within the soil mass, and therefore, can be applied with full intensity in a single stage. On the other hand an equivalent …
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Cyclic response of Gulf of Mexico clay from the Walker Ridge
… a build-up of cyclic-shear induced excess porewater pressure, and a decrease in the shear modulus. These three effects collectively are known as undrained cyclic degradation. For offshore soft clays, undrained cyclic degradation poses a significant hazard to infrastructure such as oil …
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Numerical simulations of site response and seismic settlements at Kashiwazaki-Kariwa Nuclear Power Plant, Japan
… This study focuses on three-dimensional, soil-porewater pressure coupled numerical modeling of multi-directional shear and volumetric response of Service Hall free-field site and Arahama Site on which the reactor and turbine buildings, as well as the transformer house are located using a newly …
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Performance of Fouled Railroad Superstructure Subjected to Traversing Heavy Haul Trains
… positive and negative excess pore water pressures using loading time histories considering different train velocities. Results demonstrate that positive excess porewater pressure developed in the sub-structure due to cyclic loading. Undrained conditions prevailed in the sub-grade and …
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Evaluation of cyclic behavior of dense sands under multidirectional loading using centrifuge tests
… that volumetric strains (v) and excess porewater pressures (evaluated in terms of excess porewater pressure ratio, ru) are affected by multidirectionality irrespective of density, with the ratios of bidirectional to unidirectional v and ru ranging from 1 to 4. Consequently, …
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The Impact of a Planar Drainage Geocomposite in Unsaturated Soil
… look for improved methods to reduce pressures and divert water from foundations, mechanically stabilized earth structures, cover systems, and other civil infrastructure. Drainage in these structures has typically been achieved with engineered fills, often combined with geosynthetics, …
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Element-level behavior of dense coarse grained soils under multidirectional dynamic loading
Made available in DSpace on 2019-02-08T18:39:52Z (GMT). No. of bitstreams: 3 BHAUMIK-DISSERTATION-2018.pdf: 437760645 bytes, checksum: 0176119bc23a25a034b1fa67ff5d4d16 (MD5) LICENSE.txt: 4214 bytes, checksum: 4cc9bbf36a898e87ebae93ef6275412a (MD5) PROQUEST_LICENSE.txt: 4560 bytes, checksum: …