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径向积分边界元法确定非均质土石坝渗流自由面
引用本文:王燕昌,郑静,高效伟.径向积分边界元法确定非均质土石坝渗流自由面[J].计算力学学报,2010,27(6):1011-1015.
作者姓名:王燕昌  郑静  高效伟
作者单位:1. 宁夏大学,固体力学研究所,银川,750021
2. 大连理工大学,工业装备结构分析国家重点实验室,大连,116024
基金项目:国家自然科学基金(10872050)资助项目.
摘    要:浸润面位置的确定是无压渗流分析中非常重要的问题,本文将径向积分边界单元法应用到渗流问题中,通过直接将区域积分转化为边界积分的技术,克服了传统边界元解决该类问题的缺陷,编写了迭代计算程序,并用二、三维算例证明了算法的有效性。

关 键 词:径向积分法  边界单元法  浸润线
收稿时间:2008/10/18 0:00:00
修稿时间:2009/12/16 0:00:00

Radial integration boundary element method determining seepage free surface of non-homogeneous soil-stone dams
WANG Yan-chang,ZHENG Jing and GAO Xiao-wei.Radial integration boundary element method determining seepage free surface of non-homogeneous soil-stone dams[J].Chinese Journal of Computational Mechanics,2010,27(6):1011-1015.
Authors:WANG Yan-chang  ZHENG Jing and GAO Xiao-wei
Institution:The Institute of Solid Mechanics,Ningxia University,Yinchuan 750021,China;The Institute of Solid Mechanics,Ningxia University,Yinchuan 750021,China;Industrial Equipment State Key Laborating of Structural Analysis, Dalian University of Teachnology, Dalian 116024,China
Abstract:It is very important to determine the location of the free surface in non-pressure seepage analysis. By applying radial integration method (RIM) to seepage problems, domain integrals are directly transformed into boundary integrals and, therefore, the drawback of traditional boundary element method in solving non-homogeneous problems can be overcome. An iterative computer program has been developed, using which the process of handwork iteration is avoided. 2D and 3D numerical examples are given to demonstrate the reliability of the proposed algorithm.
Keywords:radial integration method  boundary element method  seepage line
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