Behavior of Marine Sand-Clay Mixtures under Static and Cyclic Triaxial Shear
Behavior of Marine Sand-Clay Mixtures under Static and Cyclic Triaxial Shear
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DOI：
10.1061/(asce)1090-0241(2005)131:2(213
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发表时间：
2005-02
影响因子：
3.9
通讯作者：
K. Prakasha;V. Chandrasekaran
中科院分区：
文献类型：
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作者：
K. Prakasha;V. Chandrasekaran
在原地的印度海洋土壤中，沙子和粘土的混合物的比例变化很大。它们的工程特性尚未得到全面系统的研究。对具有不同比例的砂和粘土的再造印度海洋土壤进行了实验。研究内容包括一维固结试验、静动三轴试验和动三轴试验。本文介绍了这项研究的结果，并提供了一个解释的行为的基础上有效孔隙比（EVR），一个新的参数定义为孔隙的体积比的有效土壤分数。试验结果表明，不排水静力特性的EVR-log σvc′关系大致是唯一的，且具有归一化性。以EVR为基础的应力历史和归一化土工程性质（SHANSEP）方法的一些预测结果与实验数据非常吻合。因此，EVR被认为是描述和预测地震活动的合适参数。
In situ Indian Marine soils occur as mixtures of sand and clay in widely varying proportions. Their engineering behavior has not been comprehensively and systematically studied. An experimental program on reconstituted Indian marine soils having different proportions of sand and clay was undertaken. The study comprised one dimensional consolidation tests and static and cyclic triaxial tests. This paper presents the results of this study and offers an interpretation of the behavior based on effective void ratio (EVR), a new parameter defined as the ratio of volume of voids to the volume of effective soil fraction. Experimental results indicate a roughly unique EVR-log σvc′ relationship and normalizability of undrained static behavior. Some predictions from the stress history and normalized soil engineering properties (SHANSEP) approach with EVR as basis, in close agreement with experimental data, have been presented. Hence EVR is proposed as an appropriate parameter for describing and predicting the behavi...