基于MSC．Marc的边坡渗流及稳定有限元分析  

Finite element analysis of slope seepage and stability with MSC.Marc

作　　者：娄一青[1] 黄养连 陈红梅[1] 蒋裕丰[1] 李君[3] 

机构地区：[1]河海大学水利水电工程学院 [2]舟山市原水管理中心,浙江舟山316021 [3]河海大学土木工程学院,江苏南京210098

出　　处：《水利水电科技进展》2008年第3期29-32,44,共5页Advances in Science and Technology of Water Resources

基　　金：国家自然科学基金(5053903050539110);国家科技支撑计划(2006BAC14B03);中国水电工程顾问集团公司科技项目(CHC-KJ-2007-02)

摘　　要：利用MSC.Marc软件提供的用户子程序,对MSC.Marc进行二次开发。采用死活单元技术和折减过渡单元虚区高斯点渗透系数的方法对边坡的稳定渗流场进行分析,由各节点水头值分析单元所受渗透力,并以其代替周边孔隙水压力施加于土体单元,最后采用有限元强度折减法进行渗流作用下边坡的稳定性分析。算例表明,基于MSC.Marc软件分析边坡的渗流及稳定是可行的。By use of user subroutines, the MSC. Marc soft is fmther developed, and the seepage field of soil slope is analyzed with the active and inactive element technique and the method of adjusting the permeability coefficient at Gauss points in transitional elements. The seepage force, instead of the pore-pressure around soil element, is analyzed with the water head at each node of the seepage field. Finally, the stability of soil slope under seepage is studied with the strength reduction finite element method. An example calculation indicates that the approach in this paper is feasible in practice.

关 键 词：渗流 边坡稳定 有限元强度折减法 MSC.Marc软件 

分 类 号：TV223.4[水利工程—水工结构工程]