摘要
在现有的有自由面渗流分析的丢单元法的基础上进行了改进。对含自由面单元,按复合材料单元进行处理。对丢单元,引入空单元的概念进行处理。算例表明,改进后的丢单元法具有收敛性好,编程简单,计算精度更高的特点。最后用此法成功求解了漫湾水电站二期工程地下厂房围岩的复杂渗流场,并在此基础上分析了渗流场分布的主要影响因素的影响,进行了现拟渗控设计方案分析。
In this paper Abandoning Element Method for analysis of seepage with free surface is improved. The elements with the free surface are treated as the material-complexed elements.A concept named empty element is sugguested for dealing with the abondoned element. The case studies show that the method is optimized. Finally this method is applied to the seepage analysis of second-stage project of Manwan Hydropower Plant.Based on the result,the factors which effect the seepage flow area are analyzed, and then the present design scheme of the seepage control is analyzed.
出处
《水利与建筑工程学报》
2005年第1期32-36,共5页
Journal of Water Resources and Architectural Engineering
关键词
有自由面渗流
丢单元法
有限元法
渗流场
渗控设计方案
seepage with free surface
abandoning element method
FEM
seepage flow area
design scheme of seepage control
