文登市抽水蓄能电站三维渗流场的有限元分析  

Finite Element Analysis of Three-dimensional Seepage Field of Wendeng Pumped Storage Power Station

作　　者：刘昌军[1] 丁留谦[1] 高立东 杜贤军 张顺福[1] 

机构地区：[1]中国水利水电科学研究院,北京100038 [2]中水顾问集团北京勘测设计研究院,北京100024

出　　处：《水电能源科学》2011年第7期57-60,194,共5页Water Resources and Power

基　　金：国家"十一五"科技支撑课题基金资助项目(2008BAB42B05);国际科技合作与交流基金资助项目(2010DFB33720)

摘　　要：针对抽水蓄能电站工程区中众多地下洞室和排水措施影响下渗流场的复杂性问题,给出了求解有自由面渗流场改进的截止负压法、模拟高压隧洞子结构法、模拟地下厂房密集排水孔改进的排水子结构法等,并采用IDL语言编制了基于子结构法的三维渗流场有限元计算软件GWSS,计算了文登市抽水蓄能电站工程区复杂渗流场,研究了高压输水隧洞和引水管道下水平段的钢筋混凝土衬砌开裂状态下内水外渗及工程区复杂渗流场的分布特征。结果表明,在高压隧洞下水平段上部设置排水洞和排水孔幕的排渗方案,对衬砌开裂状态下高压渗水有显著排水降压作用。For the complex seepage field of Wendeng pumped storage power station in affected by many underground chambers and drainage holes, modified cutoff negative pressure method, sub-structure method for high pressure tunnel simulation and modified drainage substructure method for simulation of underground powerhouse drainage holes are proposed to solve seepage field with free surface. And the finite element seepage software platform GWSS is programmed with interactive data language IDL based on substructure method. Then the complex seepage field of Wendeng pumped storage power station is calculated. Finally, it analyzed the complex seepage field distribution characteristics of the project area and internal water leakage for the high pressure water delivery tunnel and the lower horizontal segment of the diver- sion pipeline under the cracking status of reinforced concrete lining. The results demonstrate that the provision of drainage holes and drainage curtains at upper high pressure tunnel works well on drainage and pressure lowering for high pressure infiltration flow under the cracking of lining.

关 键 词：抽水蓄能电站 三维渗流场 改进截止负压法 排水子结构法 有限元 GWSS软件 

分 类 号：TV732[水利工程—水利水电工程] TV554