察汗乌苏水电站坝体料残余变形特性试验研究

Experimental study on the residual deformation propertiesof fill materials for the concrete-faced dam ofChahanwusu Hydropower Station

介绍了通过大型动三轴试验,对新疆察汗乌苏水电站混凝土面板堆石坝坝体主砂卵砾石料和过渡料动力残余变形特性进行的试验研究工作.分别给出了动力残余体应变和动力残余轴应变的参数值.在总结近年来试验成果的基础上,对于粗粒料残余体应变和残余轴应变的发展变化规律进行了比较和讨论,并对残余轴应变的资料整理方法和表达式提出了建议.

The paper describes the experimental studies on residual deformation properties of dam-fill materials by large-scale triaxial testing for a concrete-faced dam at Xinjiang Chahanwusu Hydropower Station. The parameter values of dynamic residual volume and axial strains are presented here. Based on the test results summarized over the recent years, the development and change in residual volume and axial strains for coarse-grained materials are compared each other and discussed. Suggestions about the processing method of tested data and the expression of residual axial strain are also made in this article.