基于ANSYS二次开发的心墙堆石坝渗流分析  

Seepage analysis of core rock-fill dam based on ANSYS secondary development

作　　者：刘福益[1,2] 费文平[1,2] 杨飞翔[1,2] 肖梦倚[1,2] 

机构地区：[1]四川大学水力学与山区河流开发保护国家重点实验室,四川成都610065 [2]四川大学水利水电学院,四川成都610065

出　　处：《人民长江》2013年第19期12-15,51,共5页Yangtze River

基　　金：国家自然科学基金项目(50974091);国家重点基础研究发展规划"973"项目(2010CB732005;2010CB226802;2011CB201201)

摘　　要：ANSYS拥有强大的计算分析及前后处理功能,但缺乏处理具有自由面的无压渗流问题的能力。根据渗流场与温度场的相似性,通过ANSYS二次开发,实现了基于ANSYS的热分析模块对心墙堆石坝进行渗流稳定分析的功能。在计算过程中,运用渗透系数调整法,逐步迭代计算出浸润线位置,从而计算出渗流相关物理量。为验证ANSYS二次开发的适用性,以瀑布沟水电站坝体为实际研究对象,分别运用ANSYS和Seep/w进行对比计算,结果表明,浸润线、渗流量和渗流场的数值都较为相近,证明用ANSYS的热分析模块对心墙堆石坝进行渗流稳定计算是可行的。Though ANSYS software has powerful performance in numerical calculation, preprocessing and postprocessing, it can not analyze unconfined seepage issue with free surface. By considering the similarity of seepage field and temperature field, the seepage calculation of core rock - fill dam was realized by using the thermal analysis module of ANSYS and together with sec- ondary development. In the calculation process, the saturation line position was iteratively calculated by adjusting permeability coefficient, further, other seepage- related physical quantities were determined. In order to verify the applicability of ANSYS secondary development, we used both ANSYS and Seep/w to conduct seepage calculation for the dam of Pubugou Hydropower Station, and found that the results of saturation line, seepage quantity and seepage field by two methods were close with each other, proving the feasibility of seepage stability calculation of core rock- fill dam by thermal analysis module of ANSYS.

关 键 词：浸润线 ANSYS二次开发 渗流稳定 心墙堆石坝 

分 类 号：TV641.41[水利工程—水利水电工程]