联合示踪探测方法在石梁河水库大坝渗漏中的应用  

Application of combined tracer detection method in dam leakage of Shilianghe Reservoir

作　　者：刘国庆[1,2] 洪云飞 王蔚 赵洪波 乌景秀 范子武[1,2] LIU Guoqing;HONG Yunfei;WANG Wei;ZHAO Hongbo;WU Jingxiu;FAN Ziwu(Hydraulic Engineering Department,Nanjing Hydraulic Research Institute,Nanjing 210029,China;Key Laboratory of Water Governance in Taihu Lake Basin,Ministry of Water Resources,Nanjing 210029,China)

机构地区：[1]南京水利科学研究院水工水力学研究所,江苏南京210029 [2]水利部太湖流域水治理重点实验室,江苏南京210029

出　　处：《水利水电科技进展》2023年第6期74-81,共8页Advances in Science and Technology of Water Resources

基　　金：国家重点研发计划项目(2019YFB2102003);广东省重点领域研发计划项目(2019B111105002);江苏省水利科技重大技术攻关项目(2021027);中央级公益性科研院所基本科研业务费专项资金资助项目(Y121004)。

摘　　要：针对石梁河水库北泄洪闸异常渗漏问题,基于长系列现场同步原型观测试验,绘制了北泄洪闸二级消力池周边温度场,开展了Ca^(2+)、Cl^(-)等水化学元素质量浓度相似性和相异性特征分析,基于冒水水源多示踪离子质量浓度穿透特征曲线,查明了北泄洪闸二级消力池冒水的主要来源和渗漏路径,并提出了修建地下连续截渗墙、采用高压旋喷桩截渗、修复二级消力池底部反滤层等可行的除险加固措施,使得除险加固工程能精准施工,成功堵住了渗漏通道,并取得巨大的经济效益。石梁河水库大坝渗漏探测结果表明,温度场示踪、天然水化学示踪和ICP化学示踪联合的示踪探测方法可精准溯源渗漏水源,可在大坝渗漏探测中推广应用。Aiming at the abnormal leakage problem of the north sluice of the Shilianghe Reservoir,based on a long series of field synchronous prototype observation tests,the temperature field around the secondary stilling basin of the north sluice was drawn.The similarity and dissimilarity characteristics of mass concentrations of hydrochemical elements such as Ca^(2+)and Cl^(-)were analyzed.The main source and leakage path of the secondary stilling basin of the north sluice were identified,and feasible reinforcement measures such as building underground continuous cutoff wall,using high-pressure jet grouting pile to intercept seepage,and repairing the bottom filter of the secondary stilling basin were put forward,which made the reinforcement project be constructed accurately,blocking the leakage passage successfully and great economic benefits were achieved.The results of the Shilianghe Reservoir dam leakage detection show that the combined tracing method of temperature field tracing,natural water chemical tracing and ICP chemical tracing can accurately trace the source of leakage,it can be promoted and applied in dam leakage detection.

关 键 词：大坝渗漏 温度场示踪 天然水化学示踪 ICP化学示踪 石梁河水库 

分 类 号：TV697.32[水利工程—水利水电工程]