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土坝渗流对稳定性影响的模拟分析
引用本文:龚文惠,黄燕宏,刘军. 土坝渗流对稳定性影响的模拟分析[J]. 土工基础, 2006, 20(6): 51-53
作者姓名:龚文惠  黄燕宏  刘军
作者单位:华中科技大学土木工程与力学学院,武汉,430074
摘    要:1前言流体通过多孔介质的流动称为渗流。当地表水浸入边坡后,渗流不仅对接触面有压力和浮力,而且颗粒骨架本身也受到渗透水流的浮力和拖拽作用。因此,渗流对介质的作用力除了整体介质四周表面所受压力外,还必须研究骨架间孔隙水的作用力。此外,由于地表水的浸入,导致土的抗剪强

关 键 词:土坝  渗流  稳定性  有限元  强度折减原理
文章编号:1004-3152(2006)06-0051-03
修稿时间:2006-01-16

Simulation Analysis on the Seepage of Earth Dam and Its Influence to Stability
GONG Wen hui,HUANG Yan hong,LIU Jun. Simulation Analysis on the Seepage of Earth Dam and Its Influence to Stability[J]. Soie Engineering and Foundation, 2006, 20(6): 51-53
Authors:GONG Wen hui  HUANG Yan hong  LIU Jun
Abstract:Using Abandoning Element Method,the seepage field of earth dam is simulated with thermal analysis module in ANSYS software,the saturation surface of earth dam under steady seepage is analyzed,and the pore water pressure is calculated.Then,based on elastic-perfectly plastic constitutive model and Ducker-Prager yield criterion,the displacement and stability factors of the earth dam with or without seepage is analyzed by using of FEM and strength reduction principle,and the Influence of seepage to stability of the earth dam is compared and analyzed.
Keywords:earth dam  seepage  stability  FEM  strength reduction principle
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