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首页> 外文期刊>Ocean Engineering >Laboratory study for soil structure effect on marine clay response subjected to cyclic loads
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Laboratory study for soil structure effect on marine clay response subjected to cyclic loads

机译：循环荷载作用下土壤结构对海洋黏土响应影响的室内研究

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摘要

In this paper, a series of undrained dynamic cyclic triaxial tests were conducted to investigate structure effect on soil response due to cyclic loads. Soil samples used in this study are 1) undisturbed Shanghai marine clay and 2) artificially disturbed and remoulded Shanghai marine clay. Dynamic response, including strain development, effective stress path and pore water pressure, of both clay samples that subjected to cyclic loads were measured, respectively. Test results between undisturbed and remoulded disturbed samples were compared in detail to clarify the role that soil structure may have played during repeated loadings. It is found that the soil structure has significant influence on residual pore water pressure development. Based on the experimental results, a partition diagram is proposed to evaluate the accumulated pore water pressure of clay in different sensitivities when estimating liquefaction potential subjected to cyclic loads.
机译：本文进行了一系列不排水的动力三轴试验，以研究结构对循环荷载作用下土体响应的影响。本研究中使用的土壤样品是：1）未受干扰的上海海洋黏土和2）人为扰动和重塑的上海海洋黏土。分别测量了两个承受循环载荷的黏土样品的动态响应，包括应变发展，有效应力路径和孔隙水压力。详细比较了未扰动和重塑的扰动样本之间的测试结果，以阐明重复加载过程中土壤结构可能发挥的作用。发现土壤结构对残余孔隙水压力的发展有重要影响。根据实验结果，提出了一个分区图，用于估算在循环荷载作用下液化势时不同敏感性下粘土的累积孔隙水压力。

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  • 来源
    《Ocean Engineering》 |2018年第1期|45-50|共6页
  • 作者

    Leng Jian; Liao Chencong; Ye Guanlin; Jeng D. -S.;

  • 作者单位

    Shanghai Jiao Tong Univ, Dept Civil Engn, State Key Lab Ocean Engn, Shanghai 200240, Peoples R China;

    Shanghai Jiao Tong Univ, Dept Civil Engn, State Key Lab Ocean Engn, Shanghai 200240, Peoples R China;

    Shanghai Jiao Tong Univ, Dept Civil Engn, State Key Lab Ocean Engn, Shanghai 200240, Peoples R China;

    Shanghai Jiao Tong Univ, Dept Civil Engn, State Key Lab Ocean Engn, Shanghai 200240, Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Soft clay; Soil structure; Cyclic loads; Axial strain; Effective stress path; Pore water pressure;

    机译：软黏土;土壤结构;循环载荷;轴向应变;有效应力路径;孔隙水压力;

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