%0 Journal Article
%T DYNAMIC STABILITY ANALYSIS OF HIGH EARTH-ROCKFILL DAM ON THICK MORAINE COVER FOUNDATION<br>深厚覆盖层上高土石坝的动力稳定分析
%A DANG Fa-ning
%A HU Zai-qiang
%A XIE Ding-yi
%A <br>党发宁
%A 胡再强
%A 谢定义
%J 岩石力学与工程学报
%D 2005
%I 
%X To build high earth-rockfill dam on thick moraine cover foundation in high earthquake intensity region will face many new problems such as dynamic stability,dam foundation liquefaction etc. As an example, three-dimensional dynamic consolidation FEM is employed to analyze the reaction of high earth-rock fill dam with clay core and cat-off wall. The dynamic stability is researched. An equivalent quasi-elastoplastic constitutive model which can express nonlinear viscid and un-recoverable deformation of soil is employed in the new dynamic consolidation FEM,while dynamic pore water pressure model is abandoned. The generation,diffusion and scatter of dynamic pore water pressure in a complete earthquake process are tracked. It is a real coupling of dynamic seepage and dynamic reaction. The calculation results show that the static stress and displacement of the dam on thick moraine cover foundation are bigger;the dynamic stress,displacement and acceleration are smaller;the ratio of pore water pressure in the dam base is smaller than the dam on rock foundation. The dam is safe.
%K soil mechanics
%K dynamic consolidation
%K equivalent quasi-elastoplastic model
%K thick moraine cover
%K foundation
%K high earth-rock fill dam<br>土力学
%K 动力固结
%K 拟等效弹塑性模型
%K 深厚覆盖层
%K 高土石坝
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=D3421FAA1A0A0F0C&jid=35E747D791A1346351AFB523B7FA35CB&aid=FC7B69914EAA8957&yid=2DD7160C83D0ACED&vid=B91E8C6D6FE990DB&iid=59906B3B2830C2C5&sid=E7B46CD86468D9A6&eid=3EC3A91609DDCF9A&journal_id=1000-6915&journal_name=岩石力学与工程学报&referenced_num=1&reference_num=11