仙居抽水蓄能电站地下厂房洞室群排水孔幕渗控效果分析  

Seepage Control Analysis of Drainage Holes in Underground Caverns of Xianju Pumped-storage Power Station

作　　者：杨明山[1] 刘斯宏[1] 周斌[1] 杨经卿 项荣华 

机构地区：[1]河海大学水利水电学院,江苏南京210098 [2]浙江省抽水蓄能工程技术研究中心,浙江杭州310014 [3]浙江仙居抽水蓄能有限公司,浙江仙居317300

出　　处：《水力发电》2015年第4期28-31,78,共5页Water Power

摘　　要：仙居抽水蓄能电站地下厂房洞室群结构复杂、排水孔数目众多,为分析排水孔幕的渗流控制效果,利用排水孔二次剖分技术,对工程区全部排水孔进行了精细模拟,采用三维渗流有限元法计算得到地下厂房洞室群围岩区的渗流场分布规律。结果表明,排水孔幕对电站地下厂房洞室群渗流场的分布起控制性作用,排水降压效果明显。A large number of drainage holes are arranged in Xianju Pumped Storage Power Station as the complex underground cavern structure. For studying the seepage control effect of drainage holes, the secondary subdivision technique for drainage holes is used to simulate all drainage holes in project area, and then the three-dimensional finite element seepage analysis is carried out to obtain the seepage flow field distribution pattern of surrounding rock mass of underground powerhouse caverns. The results show that the drainage holes play a controlling role on the seepage field in Station and have a significant effect on drainage and pressure release.

关 键 词：排水孔 渗流控制 二次剖分 三维渗流场 仙居抽水蓄能电站 

分 类 号：TV731.6[水利工程—水利水电工程] TV743