| 循环荷载下结构性软土变形预测 |
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| 引用本文： | 姜岩,雷华阳,郑刚,杨雄健.循环荷载下结构性软土变形预测[J].交通运输工程学报,2011(1):13-18. |
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| 作者姓名： | 姜岩 雷华阳 郑刚 杨雄健 |
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| 作者单位： | 天津大学建筑工程学院;天津大学滨海土木工程结构与安全教育部重点实验室;天津市地质工程勘察院; |
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| 基金项目： | 国家自然科学基金项目(50508021); 天津市自然科学基金项目(07JCZDJC09800) |
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| 摘 要： | 为探讨天津滨海新区典型软土的循环变形特性,采用不排水循环三轴试验,结合扰动状态概念,在考虑土体结构屈服压力基础上,提出了一种能考虑土体在循环荷载作用下结构逐渐破坏的扰动函数,建立了一种反映土体在循环荷载作用下土体结构破坏的塑性变形经验公式,并通过动三轴试验结果对所提经验公式进行了检验.分析结果表明:结构性软土在循环荷载...
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| 关 键 词： | 结构性软土 循环荷载 扰动状态 累积塑性变形 循环应力比 动三轴试验 |
Deformation prediction of structured soft clay under cyclic load |
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| JIANG Yan,LEI Hua-yang,ZHENG Gang,YANG Xiong-jian.Deformation prediction of structured soft clay under cyclic load[J].Journal of Traffic and Transportation Engineering,2011(1):13-18. |
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| Authors: | JIANG Yan LEI Hua-yang ZHENG Gang YANG Xiong-jian |
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| Institution: | JIANG Yan1,LEI Hua-yang1,2,ZHENG Gang1,YANG Xiong-jian3(1.School of Civil Engineering,Tianjin University,Tianjin 300072,China,2.Key Laboratory of Coast Civil Structure Safety of Ministry of Education,3.Tianjin Geo-Engineering Investigation Institute,Tianjin 300191,China) |
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| Abstract: | In order to analyze the deformation characteristics of structured soft clay in Tianjin Binhai New Aera,dynamic triaxial test was conducted under traffic load,soil structure's yield pressure was considered based on the disturbed state concept,a disturbed function was put forward which considered the gradual destruction of soil structure under cyclic load,an empirical formula of plastic deformation was proposed and vertified by using the test.Analysis result shows that the relationship between accumulative pl... |
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| Keywords: | structured soft clay cyclic load disturbed state accumulative plastic deformation cyclic stress ratio dynamic triaxial test |
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