岩土工程学报2012,Vol.34Issue(5):798-804,7.
高心墙堆石坝地震反应复合模型研究
Combined model for seismic responses of high core rock-fill dams
摘要
Abstract
The aseismic analysis of high earth-rockfill dams has been widely concerned.The combined model method of dynamic centrifuge modelling tests and dynamic numerical simulation is used to study the seismic responses of high core rock-fill dams.Firstly,the results of dynamic centrifuge modelling tests with different scales are simulated numerically.The calculation model is examined and verified,and the relevant parameters are determined.Then,the results of dynamic centrifuge modelling tests are extended to those of the dynamic centrifuge modelling tests with equal stress and prototype by means of numerical method.The amplification coefficient of accelerations,residual deformation of dams,stress of concrete diaphragm walls and mode of failure of high core rock-fill dams are compared and analyzed.The numerical results are in agreement with the test ones.It is indicated that the combined model and the dynamic centrifuge modelling tests with 40g ~50g can be used to study the seismic responses of high earth-rockfill dams.关键词
高心墙堆石坝/地震反应/复合模型/动力离心模型试验/动力数值模拟Key words
high core rock-fill dam/seismic response/combined model/dynamic centrifuge modelling test/numerical simulation分类
建筑与水利引用本文复制引用
王年香,章为民,顾行文,何顺宾,杜三林..高心墙堆石坝地震反应复合模型研究[J].岩土工程学报,2012,34(5):798-804,7.基金项目
国家自然科学基金项目 ()
国家自然科学基金重大项目 ()