求解渗流自由面的复合单元全域迭代法

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名

邮箱

手机号码

标题

留言内容

验证码

基金项目: 国家自然科学基金资助项目(59878057);国家“八五”重点科技攻关项目(85160305)

Global Composite Element Iteration to Solve Seepage Free Surface

Department of River Engineering, Chongqing Jiaotong Institute, Chongqing 400074, P R China

摘要: 渗流自由面是岩体水力学研究的重点和难点,也是边坡稳定性综合研究的重要内容.基于对渗流自由面数值求解方法的分析,提出了复合单元全域迭代法,并编制了有限元计算程序.计算果表明,该法具有程序处理比较简单、计算结果比较精确等特性,一般迭代5次左右便可收敛.
- 岩体边坡 /
- 渗流自由面 /
- 复合单元全域迭代法 /
- 验证
Abstract: As one of the most difficult topics of rock mass hydromechanics, seepage free surfece plays an important part in slope stability researches. Based on analysis of numerical methods to solve seepage free surface, global composite element iteration (GCEI) is presented in this paper. FEM program is made by using GCEI. Much calculating verifies that not only the program is simpler using GCEI, also the tolerance is higher after 5 iterations.
- rock mass slope /
- seepage free surface /
- global composite element iteration /
- verification

[1]	速宝玉,朱岳明.不变网格确定渗流自由面的节点虚流量法[J].河海大学学报,1991,19(5):113～117.
[2]	Bathe K T,Khoshgoftaar M R.Finite element free surface analysis without mesh iteration[J].Intenat J Numer Methods,Engrg,1979,4(1):13～22.
[3]	陈洪凯.渗流自由面求解的基本方法、修正及应用[J].重庆交通学院学报,1997,16(3):5～10.
[4]	毛昶熙.渗流计算分析与控制[M].北京:水利电力出版社,1990.
[5]	Desai C S.Finite element residual schemes for unconfined flow[J].Internat J Numer Methods Engrg,1976,10(1):1415～1418.
[6]	张有天,陈平,王镭.有自由面分析的初流量法[J].水利学报,1988,(8):18～26.
[7]	吴梦喜,张学勤.有自由面渗流分析虚单元法[J].水利学报,1994,(8):67～70.
[8]	哈丘,陈洪凯,岩石边坡渗流与排水机理研究[M].北京:中国建筑工业版社,1997.
[9]	Nonveiller E.Efficiency of horizontal drains on slope stability[A].In:Pasamehmetoglu E D Ed.Computer Methods and Advances in Geomechanics[C].Rotterdam:Balkma,1994,112～117.