饱和重塑黄土液化应变发展试验研究

英文篇名：Experimental study of strain development on saturated remoulded loess liquefaction
中文刊名：江西理工大学学报
英文刊名：Journal of Jiangxi University of Science and Technology
作者：刘建民 ; 周云东 ; 张立志 ; 王军 ; 王庶懋
英文作者：LIU Jian-min1 ; 2 ZHOU Yun-dong1 ; 2 Zhang Li-zhi3 WANG Jun4 WANG Shu-mao5 (1.Key Laboratory of Ministry for Geomechanics and Embankment Engineering ; Hohai University ; Nanjing 210098 ; China ; 2.Geotechnical Research Institute ; Hohai University ; Nanjing 210098 ; China ; 3.Andi Reservoir Management Station of Linyi City ; Linyi 276001 ; China ; 4.Key laboratory of engineering and technology for soft soil foundation and tideland reclamation ; Wenzhou University ; Wenzhou 325035 ; China ; 5.Department of Geotechnical Engineering ; East China Electric Power Design Institute ; Shanghai 200631 ; China)
中文关键词：黄土 ; 振动液化 ; 应变发展 ; 应力-应变滞回圈 ; 塑性应变
英文关键词：loess ; vibration liquefaction ; strain development ; deviatoric stress-axial strain curve ; plastic strain
出版日期：2012-02-15
机构：岩土力学与堤坝工程教育部重点实验室;河海大学岩土工程研究所;山东临沂岸堤水库管理处;温州大学软弱土地基与海涂围垦工程技术重点实验室;华东电力设计研究院岩土工程公司;
年：2012
期：01
出版单位：江西理工大学学报

摘要

通过对饱和重塑黄土进行了一系列动三轴试验,分析了在振动液化过程中试样的应变发展特性和应力-应变滞回圈的变化趋势.基于动三轴试验结果,分析了应变随着振次的发展变化过程,并结合应力-应变滞回圈的变化过程,将应变发展划分为三个阶段;同时,根据滞回圈的形态变化,提出了振动过程中应变的塑性累积,并通过数据分析,给出了塑性累积计算的公式.
Through the dynamic triaxial tests of the saturated remolded loess,the strain development and deviatoric stress-axial strain curve are analysed of the sample during liquefaction process.Based on the dynamic triaxial test results,the strain development with the vibration frequency are analysed and combined with the tendency of changes on deviatoric stress-axial strain curve,the strain development is divided into three stages;At the same time,plastic accumulation of the strain during vibration process was put forward according to the change of deviatoric stress-axial strain curve,and the formula of plastic accumulate computation are given through the analysis of data.

引文

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