摘要
根据动水压力对心墙堆石坝地震响应的影响问题,将上游坝体模拟为固液两相孔隙介质,用以固相位移和液相压力为基本未知量的Biot方程进行分析,建立了坝体—水体—地基耦合系统的动力反应分析模型.
In this paper,a model for the dynamic response analysis of dam-water-foundation coupling system is constructed.Some parts of the earth-rockfill dam are treated as a two phase of fluid-solid porous media and the Biot dynamic equations are solved for solid-phase displacement and fluid pressure by the scheme.
引文
[1]Westgaard H M.Water pressures on dams during earthquakes[J].Trans.ASCE,1933,V98,418-433.
[2]Chopra A K.Earthquake behavior of reservoir-dam system[J].Journalof the Engineering Mechanics Division,ASCE,1967,94:1475-1500.
[3]Chopra A K.Earthquake analysis of Concrete gravity dams includingdam-water-foundation rock interaction[J].Earthquake Engineering andStructural Dynamics,1981,9:363-383.
[4]蒋景彩,卢盛松,姜朴.考虑动水压力的土石坝三维动力反应分析[J].水利水运科学研究,1988,(2):48-58.
[5]迟世春,林皋.混凝土面板堆石坝与库水动力相互作用研究[J].大连理工大学学报,1998,38(6):718-723.
[6]窦兴旺,夏颂佑.深覆盖层上心墙堆石坝动力分析中库水影响研究[J].水力发电,1999,(5):12-14.
[7]牛志伟.库底淤沙对混凝土坝地震响应影响分析方法研究[D].河海大学博士学位论文,2008.
[8]赵兰浩,李同春,牛志伟.坝体-库水动力相互作用的数值求解格式[J].河海大学学报,2008,36(4):293-297.
[9]梁必王块,杨阳.大坳软岩面板堆石坝边坡稳定及应力变形分析[J].江西水利科技,2004,30(z1).
[10]李少波,张宏超,孙立军.动水压力的形成与模拟测量[J].同济大学学报(自然科学版),2007,35(7).
[11]殷宗泽,朱俊高,袁俊平,张伸勇.心墙堆石坝的水力劈裂分析[J].水利学报,2006,37(11).