南水北调东线八里湾泵站渗透稳定分析-南水北调与水利科技.pdf

第 12 卷 第 1 期 南 水 北 调 与 水 利 科 技 Vol.12 No. 1 2014 年 2 月 South2to2 North Water Transfers and Water Science Technology Feb. 2014 doi : 10. 3 24/ SP. J. 1201. 2014. 01110 欧 勇, 王乃根, 尚俊伟 ( 中水淮河规划设计研究有限公司, 安徽 蚌埠233001) : 为了解决八里湾泵站主泵房场区潜水和承压水复杂渗流问题, 采用地下连续墙围封、排水孔、水平排水管、减 压井等多种渗透稳定控制措施, 延长渗径, 增加上游水头损失, 降低下游水位。与此同时, 采用三维渗流数学模型法 地基渗流场进行求解, 确定了地下连续墙的深度和排水孔、排水管、减压井间距, 优化了渗流控制措施方案, 成功 解决了泵站的设计难题。研究结果可以为平原成层地层地区泵站工程的渗流和渗控设计提供参考。 : 八里湾泵站; 渗透稳定; 承压水; 地下连续墙; 排水孔; 减压井; 中粗砂垫层 : TV68; T V223.4 : A : 16 22 1683(2014) 0120110204 Seepage Stability Analysis of Baliwan Pumping Station in the Eastern Route of South2to2North Water Transfer Project OU Yong, WANG Na2i gen, SH ANG Jun2w ei ( China Water H uaihe Planning, esig nand Research Comp any L imited,Bengbu 233001, China) Abstract: In order to resolve the complex seepage problem of the unconfined and confined aquifers in the Baliwan pumping sta2 tion, several seepage stabilit y control measures, such as underground cont inuous w all, drainage holes, horizontal drainage pipes, and relief wells,w ere applied to extend the seepage path, increase upstream head loss, and decrease dow nstream w ater level.T he seepage field of the ground foundation was obtained using the three2 dimensional seepage mathemat ical model, and the depth of underground continuous w all and the spacing of drainage holes, horizontal drainage pipes, and relief wells were also determined, which can optimize t he seepage control measures.Therefore, the design difficult y of pumping stations w as solved.T he research results can provide reference for the seepage control design of pumping stations in the layered st