重力坝坝内置换混凝土防渗墙技术探讨

摘要

There is no engineering case of setting concrete cutoff wall in concrete gravity dam.For solving the problem of seepage control in old concrete dams,the idea of setting concrete cutoff wall in concrete gravity dam through concrete replacement is studied.The material,thickness and structural arrangement of cutoff wall are discussed,and the collaborative performance of old and new concrete after cutoffwall being completed are also analyzed.This study can provide references to actual projects.%目前国内尚无在混凝土重力坝坝内设置混凝土防渗墙的工程实例.为解决老坝防渗问题,对重力坝坝内置换混凝土防渗墙技术进行探讨,研究了防渗墙墙体材料、厚度、结构布置形式,并分析了置换混凝土防渗墙新老坝体协同工作性能,其结果可供实际工程参考.