摘要
中国、美国、孟加拉国三国现行抗震设计规范中针对细粒土的液化判别标准各不相同。为提出可供工程应用及中国规范修订参考的评判标准,该文通过对比三国判别流程和标准,并分析其形成过程后,在孟加拉国达卡及周边城市采取的168个细粒土样液化判别应用基础上,综合评价了各判别流程和标准的合理性。最后提出了一套融合各标准的细粒土液化判别流程及其结果评价标准。
The criteria for liquefaction judgment of fine-grained soil in current seismic design codes of China,the United States,and Bangladesh are quite different.In order to propose the judgment criteria for engineering application and Chinese code revision,this paper compared the judgment processes and criteria of the three countries.After analyzing the formation process,based on the application of the criteria for liquefaction judgment of 168 fine-grained soil samples collected in Dhaka,Bangladesh and surrounding cities,the rationality of each judgment process and criteria was evaluated comprehensively.Finally,a set of judgment processes and result criteria for fine-grained soil liquefaction integrating all criteria were put forward.
作者
吴姿
WU Zi(Research and Development Center on International Engineering Standards,CCCC,Wuhan,Hubei 430056,China;CCCC Second Highway Consultant Co.,Ltd.,Wuhan,Hubei 430056,China)
出处
《中外公路》
2024年第4期263-268,共6页
Journal of China & Foreign Highway
基金
中交集团工程技术标准国际化战略研究与实践项目(编号:2022-ZJKJ-PTJS15)
中交第二公路勘察设计研究院有限公司科技研发项目(编号:KJFZ-2020-006)。
关键词
细粒土
液化
中国标准
黏粒含量
塑性指数
fine-grained soil
liquefaction
Chinese criteria
clay content
plasticity index
