溢洪道边墩墙体裂缝防渗处理施工技术  

Construction Technology for Leakage Treatment of Wall Cracks in Side Pier of Spillway

作　　者：鲍志强[1,2] 李云峰 杨子儒[3] 杨帅 Bao Zhiqiang;Li Yunfeng;Yang Ziru;Yang Shuai(Department of Materials,China Institute of Water Resources and Hydropower Research,Beijing100038,China;Beijing IWHR-KHL Co.,Ltd.,Beijing100038,China;China Renewable Energy Engineering Institute,Beijing100120,China)

机构地区：[1]中国水利水电科学研究院材料研究所,北京100038 [2]北京中水科海利工程技术有限公司,北京100038 [3]水电水利规划设计总院,北京100120

出　　处：《中国建筑防水》2025年第2期49-52,56,共5页China Building Waterproofing

基　　金：国家重点研发计划(2022YFC3005404)。

摘　　要：某水利枢纽溢洪道边墩墙体产生多条裂缝,沿缝有渗水现象并析出大量白色絮状物,个别裂缝渗流量较大,已经形成流态。为消除裂缝渗水对混凝土结构的影响,采用化学灌浆及表面封闭法对裂缝进行修复处理,并对化学灌浆及涂层封闭施工的实际效果进行检测分析评价。结果表明,裂缝化学灌浆充填密实,表面封闭涂层与混凝土粘接牢靠,达到预期止水防渗的修复效果,可为类似工程项目提供参考。Multiple cracks have developed in the side pier of a hydro-junction spillway,with water leaking along the cracks and depositing a large amount of white flocculent material.Some cracks display a significant leakage volume,resulting in a fluid state.To address the impact of crack leakage on the concrete structure,chemical grouting and surface sealing are applied to repair the cracks,and the application effects are tested and analyzed.The results show that the chemical grouting effectively filled the cracks,and the surface sealing coating adhered firmly to the concrete,achieving the expected waterproofing and leakage prevention result.Which provides a reference for similar engineering projects.

关 键 词：溢洪道 墙体裂缝 化学灌浆 水溶性聚氨酯灌浆材料 改性环氧树脂灌浆材料 手刮聚脲 

分 类 号：TV61[水利工程—水利水电工程] TU761.11[建筑科学—建筑技术科学]