加密高斯点单元传导矩阵调整法在有自由面渗流分析中的应用  

Application of Element Conduct Matrix Regulative Method by Encrypting Gauss Point in Seepage Analysis with Free Surface

作　　者：舒仲英[1] 邓建霞[2] 李龙国[1] 

机构地区：[1]四川大学水利水电学院,四川成都610065 [2]中国水电顾问集团昆明勘测设计研究院,云南昆明650051

出　　处：《四川大学学报（工程科学版）》2007年第1期48-52,共5页Journal of Sichuan University (Engineering Science Edition)

摘　　要：加密高斯点单元传导矩阵调整法通过加密复合单元内高斯积分点的数目,不仅提高了复合单元的传导矩阵值计算精度,而且还基本上克服了无压渗流场迭代计算过程中自由面的震荡现象。根据该法编制了有限元程序MESeep,并采用该程序进行了实例分析。结果表明。By increasing the number of Gaussian integrating points, the calculation precision of conductivity matrix of compound elements was improved and the free surface oscillation during the iteration was overcome. Adopting this method, program MESeep was coded and cases were carried out. The results showed that the method and program are feasible.

关 键 词：渗流 自由面 固定网格法 高斯积分点 

分 类 号：TV641[水利工程—水利水电工程]