岩土力学Issue(9)：2594-2601,8.
基于土石坝动力特性的坝料动力参数反演
Back analysis of dynamic parameters of dam materials based on earth-rockfill dam dynamic characteristics
摘要
Abstract
It is one of the concern problems what’s the difference between the earth rockfill dynamic parameters determined in the laboratory and in situ and the real dynamic parameters of the dam materials. The earth-rockfill dynamic parameters back analysis approach based on earth-rockfill dam dynamic characteristics is presented. The material dynamic parameters of the hypothetical faced rockfill dam are back analyzed;and the results verify that the method is feasible, the calculation precision basically satisfies practical engineering requirements. Meanwhile, according to the Zipingpu concrete faced rockfill dam acceleration response information in the aftershock of Wenchuan earthquake, maximum dynamic shear modulus coefficient K and exponent n of the dam materials dynamic parameters are back analyzed. The results indicate that dynamic shear modulus coefficient K of the dam materials which obtained from laboratory dynamic triaxial test is smaller than true value;and it is suggested to adjust.关键词
土石坝/动力参数/反演/动力特性/紫坪铺面板堆石坝Key words
earth-rockfill dam/dynamic parameters/back analysis/dynamic characteristics/Zipingpu concrete faced rockfill dam分类
建筑与水利引用本文复制引用
刘振平,迟世春,任宪勇..基于土石坝动力特性的坝料动力参数反演[J].岩土力学,2014,(9):2594-2601,8.基金项目
国家自然科学基金（No.51179024，No.51109027，No.51379029）。 （）
