行坑朗水库大坝防渗加固施工技术要点分析  

Analysis of Key Technical Points in Seepage Prevention Reinforcement Construction for the Xingkenglang Reservoir Dam

作　　者：梁龙灿 LIANG Longcan(Kaiping Zhenhai Reservoir,Kaiping 529300,China)

机构地区：[1]开平市镇海水库,广东开平529300

出　　处：《中国水能及电气化》2024年第5期8-12,共5页China Water Power & Electrification

摘　　要：文章以开平市行坑朗水库为研究对象。由于水库兴建年份较早,受当年施工条件及材料的制约,现状坝体填土压实度较差,且渗透性为中等—强透水,随着水库水位升高,库区外水位低于库内水位较大时,坝体出现严重渗漏现象,导致大坝稳定性下降,从而危及大坝安全运行,亟须对水库大坝进行防渗加固处理。基于此,根据行坑朗水库大坝现状情况,本次拟定了几种坝体防渗施工技术方案,经综合比选,确定大坝防渗加固方案为高压喷射灌浆与帷幕灌浆相结合的施工方案。该施工方案完工后,消除了行坑朗水库大坝渗漏隐患,确保了水库安全。The paper focuses on the Xingkenglang Reservoir in Kaiping City.Due to its early construction,the dam was built under limited conditions and with materials available at that time,leading to poor compaction of the fill soil and medium-to-high permeability.As the water level in the reservoir rises and exceeds the external water level significantly,serious seepage issues in the dam body have been observed,leading to a decrease in dam stability and endangering its safe operation.Therefore,there is an urgent need for seepage prevention reinforcement of the dam.Based on the current state of the Xingkenglang Reservoir dam,several seepage prevention construction technology plans for the dam body were proposed.After comprehensive evaluation,the chosen solution for the dam reinforcement combines high-pressure jet grouting with curtain grouting.Upon completion of this construction plan,the seepage issues in the Xingkenglang Reservoir dam were resolved,ensuring the safety of the reservoir.

关 键 词：大坝防渗加固 施工技术 高压喷射灌浆 帷幕灌浆 行坑朗水库 

分 类 号：TV223.4[水利工程—水工结构工程]