Results 21 to 30 of about 1,687 (187)
Flow Potential of Sand During Liquefaction
In order to quantify the tendency to flow characteristics of sandy soils, the maximum value of excess pore water pressure ratio developed during undrained monotonic loading test was taken as an index property and defined as flow potential. Triaxial compression tests, triaxial extension tests and simple shear tests on Toyoura sand were conducted by ...
YOSHIMINE, MITSUTOSHI, ISHIHARA, KENJI
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Assessments of the liquefaction resistance of clean sand still involve considerable uncertainties, which are a current research topic in the field of soil liquefaction.
Mitsu Okamura
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Yielding and Flow Liquefaction of Loose Sand
Abstract: The relationship between the shapes of the yield surface and the undrained effective stress path (UESP) of loose sand is investigated for triaxial loading conditions. It is shown that the UESP can be used in the construction of capped yield surfaces for sands.
Chan, D. H. +3 more
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Sand Liquefaction Due to Irregular Excitation
ABSTRACT An electro hydraulic servo type loading system was incorporated into the conventional triaxial shear test apparatus so that any desired form of load pattern can be applied to soil specimens. In applying this system to the study of liquefaction of saturated sands, a difficulty was encountered in keeping the applied stress perfectly controlled
ISHIHARA, KENJI, YASUDA, SUSUMU
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CYCLIC PRESSUREMETER LOADING AND LIQUEFACTION PROPERTIES OF SANDS
Based on a series of cyclic cavity expansion tests carried out on a thick hollow cylinder apparatus (HCC) and on mini-pressuremeter tests performed in a calibration chamber, a method is proposed to establish a reliable correlation between the result of a "reference" cyclic expansion test carried out in a sand, in terms of cavity volume accumulation ...
Dupla, Jean Claude, Canou, Jean
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Liquefaction Resistance of Sand Deposit Improved with Sand Compaction Piles
ABSTRACT This paper reports results of in-situ tests and undrained cyclic shear tests on high-quality undisturbed samples obtained by the in-situ freezing method at three sites where foundation soils had been improved with sand compaction piles. Triaxial specimens obtained from the frozen samples were fully saturated in the triaxial cell and then ...
OKAMURA, MITSU +2 more
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Liquefaction Potential of Silty Sand in Simple Shear [PDF]
In this paper, the liquefaction potential of medium dense and dense sand layers was studied by performing constant volume (undrained) cyclic simple shear tests using cyclic simple shear apparatus. Strain-controlled approach was adopted.
Zaheer Ahmed Almani +2 more
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Repetitive Liquefaction at a Gravelly Site and Liquefaction in Overconsolidated Sands
Repetitive liquefactions in angular and subangular gravels from an alluvial fan, in the case of two earthquakes with accelerations lower than that of a former which had caused liquefaction some months before, are described. The liquefaction took place from the surface, down to a depth of approximately 10 m.
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Calcareous sandy foundations are susceptible to liquefaction when subjected to dynamic loading such as seismic or wave loading. The microbially induced calcite precipitation (MICP) treatment is a relatively new method to improve the liquefaction ...
ZHANG Xin-lei 1, 2, CHEN Yu-min 1, 2, ZHANG Zhe 1, 2, DING Xuan-chen 1, 2, XU Sheng-ming 1, 2, LIU Han-long 3, WANG Zhi-hua 4
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A parametric study on cyclic strength of coastal sand of Digha in West Bengal, India
Stress controlled cyclic triaxial tests have been carried out on coastal sand of Digha, West Bengal, India at different frequencies, confining pressures, relative densities and number of loading cycles for determination of influence of these parameters ...
Pinak Ray, Ramendu Bikas Sahu
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