浅析马鞍桥水库左岸岩溶渗漏及其防渗处理  

Analysis of Karst Leakage and Anti Seepage Treatment on the Left Bank of Ma'Anqiao Reservoir

作　　者：张新 蔡宝柱 Zhang Xin;Cai Baozhu(XPCC Surveying&Designing Institute(Group)Co.,Ltd.,Urumchi 830002,Xinjiang)

机构地区：[1]新疆兵团勘测设计院(集团)有限责任公司,新疆乌鲁木齐830002

出　　处：《陕西水利》2021年第11期139-141,144,共4页Shaanxi Water Resources

摘　　要：综合采用钻孔、平硐、物探等查明马鞍桥水库坝址左岸三叠系上统大水塘组上段(T3d2)灰岩主要存在岩溶裂隙型渗漏,未见岩溶管道系统,且岩溶随深度增加而减弱,具备防渗处理条件。经技术经济比选,设计采用深232.50 m的三层灌浆帷幕防渗方案,并布置渗压计、量水堰等安全监测设施,较合理地解决了水库建坝难题。同时对下一步设计和施工质量控制亦提出粗浅建议。Comprehensive use of boreholes,flat tunnels,and geophysical prospecting to find out that the limestone of the Upper Triassic Dashuitang Formation(T3d2)on the left bank of the Ma'anqiao Reservoir dam site mainly has karst fissure-type leakage.There is no karst pipeline system,and the karst weakens with the increase of depth,and the conditions for anti-seepage treatment are available.After technical and economic comparison,it designs the anti seepage scheme of three-layer grouting curtain with depth of 232.50 m,and arranges the safety monitoring facilities such as osmometer and measuring weir,which solve reasonably the problem of dam construction.suggestions are also proposed for the future design work and construction quality control.

关 键 词：岩溶渗漏 灌浆帷幕 安全监测 建议 

分 类 号：TV213.4[水利工程—水文学及水资源]