导流堤地基土动力特性的试验研究

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英文篇名：The Experimental Study on Dynamic Characteristic of Diversion Dike's Foundation Soil 中文刊名：西北地震学报 英文刊名：Northwestern Seismological Journal 作者：王桂萱 ; 周金领 ; 赵杰 ; 郑洋 英文作者：WANG Gui-xuan ; ZHOU Jin-ling ; ZHAO Jie ; ZHENG Yang(Research and Development Center of the Civil Engineering Technology ; Dalian University ; Dalian 116622 ; China) 中文关键词：导流堤 ; 动力特性 ; 动模量 ; 阻尼比 ; 液化 英文关键词：Diversion dike ; Dynamic characteristic ; Dynamic modulus of elasticity ; Damping ratio ; Liquefaction 出版日期：2011-08-10 机构：大连大学土木工程技术研究与开发中心; 年：2011 期：S1 出版单位：西北地震学报

摘要

通过对某核电厂取水明渠导流堤地基土室内共振柱试验及粉砂的动三轴液化试验,测定了动剪切模量、阻尼比与动剪应变幅的双曲线关系,分析了导流堤地基土的动力变形特性,探讨了砂土的抗液化强度与液化振次之间的乘幂函数关系,确定了该地基土的抗液化强度指标。试验结果为评价导流堤的地震稳定和液化分析提供了相关参数。
Through the resonance column test and dynamic triaxial liquefaction test on diversion dike soil of a nuclear power plant,the curves of dynamic shear modulus-dynamic shear strain and damping ratio-dynamic shear strain are gotten,the dynamic deformation characteristics of diversion dike soil are analyzed,the exponentiation function between liquefaction resistance strength and liquefaction shake times of sand soil is studied,and the indexes of liquefaction resistance strength is confirmed.The results provide relevant parameters for evaluating seismic stability and liquefaction analysis of diversion dike.

引文

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