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首页> 外文期刊>ISET journal of earthquake technology >CYCLIC AND MONOTONIC UNDRAINED SHEAR RESPONSE OF SILTY SAND FROM BHUJ REGION IN INDIA
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CYCLIC AND MONOTONIC UNDRAINED SHEAR RESPONSE OF SILTY SAND FROM BHUJ REGION IN INDIA

机译：印度布吉地区粉质砂的循环和单调不排水剪切响应

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摘要

Recent earthquake case histories have revealed the liquefaction of silty sands during earthquakes. A major challenge is the selection of the appropriate residual strength of liquefied materials for use in analyses to assess the post-liquefaction stability of embankments and other soil structures. During the Bhuj earthquake on 26 January 2001, fine sand containing appreciable amount of silt was transported to the ground surface due to liquefaction-induced upward ground water flow. Several sand-boils were observed near the region close to the epicenter of the earthquake. This paper describes the results of an experimental study on the undrained shear behavior of such silty sands collected from the locations very close to the epicenter of the Bhuj earthquake. The present study focuses on the effects of appreciable amount of silt content and confining stress on residual shear strength of silty sands in triaxial compression under monotonic loading and on potential for liquefaction under cyclic loading.
机译：最近的地震案例历史揭示了地震过程中粉砂的液化。一个主要的挑战是选择合适的液化材料残余强度，以用于分析评估路堤和其他土壤结构的液化后稳定性。在2001年1月26日的布杰地震中，由于液化引起的向上的地下水流，含有大量淤泥的细砂被输送到地面。在靠近地震震中的区域附近观察到一些沙沸。本文描述了从非常接近普杰地震震中的位置收集的这种粉砂的不排水剪切特性的实验研究结果。本研究的重点是在单调荷载作用下三轴压缩作用下粉砂含量和围压对粉砂残余残余强度的影响以及在循环荷载作用下液化的潜力。

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