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Showing 1 to 17 of 17 for “"Liquefaction resistance"”.
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The influence of cementation on liquefaction resistance of sands
… sands are known to be susceptible to failure by liquefaction when they are saturated and subjected to earthquake shaking. Considerable study has been directed towards this subject over the past 20 years in recognition of the possibility of large-scale property damage or loss of life due to this …
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Drained cyclic preshearing effects on the liquefaction resistance of sands
Liquefaction-induced ground failures are a major source of damage and economic loss from earthquakes. Because of this, considerable research has been conducted to investigate factors that affect the liquefaction resistance of coarse-grained soils. Among these, shearing history has been shown to …
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Use of Cone Penetration Testing in the Interpretation of Ground Shaking From Paleoliquefaction Evidence
… can be found in abundance in the form of soil liquefaction features. Present day measurements of liquefaction resistance can be used to estimate the severity of the ground shaking that had to occur to cause the observed liquefaction features. The database of present-day liquefaction cases is …
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Three-Dimensional Simulations of the Behaviour of Layered Soils under Simple Shear
… clay layer within sandy soils on strength and liquefaction resistance. Comparison of 2D and 3D simulations of direct simple shear (DSS) tests highlights qualitative differences and internal flow phenomena. Results indicate substantial impact of clay layers on sample strength and liquefaction …
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The Effects Of Non-Plastic and Plastic Fines On The Liquefaction Of Sandy Soils
… content and plasticity actually affects the liquefaction resistance of a sand. In fact, the literature contains what appears to be contradictory evidence. There is a need to clarify the effects of fines content and plasticity on the liquefaction resistance of sandy soils, and to determine …
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AN ACOUSTIC METHOD FOR IDENTIFYING SAND FABRIC AND LIQUEFACTION POTENTIAL
… medium to fine sand samples, and their related resistance to liquefaction. Three methods of preparation, that produced repeatably different preferred long grain axis orientations, were used to prepare laboratory samples (6.8" high by 2.7" in diameter) of a uniform, angular sand.</p><p>Acoustic …
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The effects of multi-directional loading on soil liquefaction
… The effects of multi-directional loading on soil liquefaction were further investigated from the perspective of liquefaction criteria, liquefaction resistance, development of excess pore pressure and shear strain, as well as the degradation of shear modulus. The definitions of shear stress, shear …
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Pore Pressure Parameters and Cyclic Resistance Under Generalized Loading
… of principal stress rotation on the cyclic resistance of sands. Test results over a range of α_σc and 〖∆α〗_σ indicate that that the weakest cyclic resistance at a given initial α_σc always correspond to 45° stress rotation, and for a given magnitude of stress rotation (fixed ∆α_σ) the …
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Geotechnical Characterisation of Pumiceous Soils for Liquefaction Assessment
… for the geotechnical characterisation and liquefaction assessment of pumiceous soils have long been highlighted by the geotechnical community. In this research, laboratory experiments, such as cyclic/monotonic triaxial tests and bender elements, were performed on high-quality undisturbed …
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Micromechanical Aspects of Aging in Granular Soils
… small strain modulus and stiffness, penetration resistance, liquefaction resistance, and pile setup. Different hypotheses have been proposed to explain the occurrence of aging in granular soils, including cementation induced by dissolution of silica and precipitation at the particle contacts, …
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Cyclic Properties of Natural Soil Containing Pumice Particles
… instability condition was not observed and the liquefaction resistance of the NP sands was found to be considerably higher than Toyoura sand with the same relative density. In addition, based on a limited number of tests, it appeared that slight differences in the behaviour of the NP soils was …
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Insights into the Liquefaction Hazards in Napier and Hastings Based on the Assessment of Data from the 1931 Hawke's Bay, New Zealand, Earthquake
… several earthquakes in the past during which liquefaction occurred. The 1931 Hawke's Bay earthquake is particularly interesting because it was the deadliest and one of the most damaging earthquakes in New Zealand's history. The study presented herein provides insights into the liquefaction …
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Effects of nonhomogeneous cementation in soils on resistance to earthquake effects
… to sustain static and dynamic loads, even in a liquefaction type environment. This has been shown in previous research examining the behavior of both naturally cemented and artificially prepared samples. Cemented sands are present in many parts of the world and can be caused by either a variety …
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Evaluation of liquefaction potential of silty sand based on Cone Penetration Test
Liquefaction ls a phenomenon where a saturated soil can temporarily lose its shear strength during an earthquake as a result of the development of excess pore pressures. For the past 25 years since Iiquefaction phenomenon was first explained, it was thought to be mainly a problem with clean sand, …
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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: …