黄南水库工程导流洞封堵体漏水原因及处理  

Water Leakage Treatment and Cause Analysis on Plugging Body in Diversion Tunnel of Huangnan Reservoir

作　　者：何继义 余睿华 HE Ji-yi;YU Rui-hua(Songyang Water Conservancy Bureau,Songyang 323400,China;Zhejiang Design Institute of Water Conservancy and Hydro-electric Power,Hangzhou 310002,China)

机构地区：[1]浙江省松阳县水利局,浙江松阳323400 [2]浙江省水利水电勘测设计院,浙江杭州310002

出　　处：《浙江水利水电学院学报》2021年第6期61-65,共5页Journal of Zhejiang University of Water Resources and Electric Power

摘　　要：针对黄南水库工程导流洞封堵体漏水问题进行了多角度的原因分析,认为解决漏水问题应先采用对堵头顶部的涌水孔化学灌浆封堵,使灌入缝隙的化学浆液快速反应膨胀封堵漏水,后用常规普通水泥接缝灌浆进行补强,经过继续灌入水泥浆填充混凝土收缩产生的缝隙漏水通道,使封堵体与周边岩体形成整体,共同承担应力,增强封堵体整体稳定性。实践表明,经过实施化学灌浆封堵后,堵头漏水得到有效控制;又经过水泥灌浆后,提高了整个封堵体防渗效果。In order to treat water leakage in the blocking body of diversion tunnel of Huangnan Reservoir,a multi-angle cause analysis is carried out.First,chemical grouting is adopted to plug the gushing hole on the top of the plug,so that the chemical grout filled into the gap can react quickly to expand and block the water leakage.After that,regular ordinary cement joint grouting is used to reinforce the joints.After continuing to pour cement grout to fill the leaky passages caused by the shrinkage of the concrete,the plugging body and the surrounding rock mass are formed as a whole to bear the stress jointly and enhance the overall stability of the plugging body.Practical test after the implementation of chemical grouting shows that the plug leakage is effectively controlled,and the anti-seepage effect of the entire plugging body is improved after cement grouting.

关 键 词：水利工程 导流洞 漏水处理 

分 类 号：TV551.1[水利工程—水利水电工程]