水库坝基岩溶防渗加固设计与复核计算  

Design and review calculation of karst seepage prevention and reinforcement of reservoir dam foundation

作　　者：冷美玲 罗志雄 张洪龙 LENG Meiling;LUO Zhixiong;ZHANG Honglong(Jiangxi Hongtu Technology Consulting Co.Ltd,Nanchang 330000,China;Jiangxi Academy of Hydraulic Sciences,Nanchang 330000,China;Jiangxi Poyang Lake Water Conservancy Project Construction Office,Nanchang 330000,China;Jiangxi Wuhu Construction Engineering Co.Ltd,Guixi 335499,China)

机构地区：[1]江西省洪图技术咨询有限公司,南昌330000 [2]江西省水利科学院,南昌330000 [3]江西省鄱阳湖水利枢纽建设办公室,南昌330000 [4]江西五湖建筑工程有限公司,江西贵溪335499

出　　处：《水科学与工程技术》2024年第4期57-60,共4页Water Sciences and Engineering Technology

摘　　要：针对高泉水库大坝坝基岩溶渗漏问题,勘探查明水库岩溶形态、分布及发育程度,提出2种防渗加固方案,根据防渗效果、施工条件及工程投资等因素进行比选。结果表明:沿大坝原有防渗墙进行大坝坝基溶洞灌筑(方案1)可有效地使大坝心墙与基础防渗帷幕处于同一垂直面上,具有较好的防渗体整体性;经复核下游坝脚地面出逸坡降及渗流量均明显降低,进一步说明方案的合理性,可为类似工程加固处理提供参考。In view of the karst leakage problem of the dam foundation of Gaoquan reservoir,the karst form,distribution and development degree of the reservoir were investigated and identified,and two anti-seepage reinforcement schemes were proposed.According to the anti-seepage effect,construction conditions and project investment,the results showed that:Irrigation of karst caves along the original anti-seepage wall of the dam foundation(Scheme 1)can effectively make the core wall of the dam and the anti-seepage curtain of the foundation on the same vertical surface,with better anti-seepage integrity;After review,the ground escape slope and seepage flow of the downstream dam foot are significantly reduced,which further explains the rationality of the scheme.This study can provide experience reference for similar engineering reinforcement treatment.

关 键 词：岩溶渗漏 防渗体系 岩溶封堵 方案比选 复核计算 

分 类 号：TV698[水利工程—水利水电工程]