水泥与化学浆液组合灌浆技术在围堰渗漏处理中的应用

Application of the Grouting Technology by Combining the Cement and Chemical Grout in Cofferdam Leakage

四川枕头坝水电站二期上游土石围堰通过实施KGM絮凝水泥砂浆与油溶性聚氨酯组合灌浆堵漏方案,成功封堵大流量涌水,在水电工程领域创造出"干基坑"奇迹。该堵漏方案具有快速、高效、低成本的特点,在消除土石围堰渗漏隐患方面有着独特的优势。

The earth rock cofferdam, built in upstream of the second stage of Sichuan Zhentouba Hydropower Station, has effectively sealed a large flow water leakage, with a kind of grout method of combining KGM flocculant and oil soluble polyurethane. It created the Dry foundation pit wonders in the field of hydropower project. With its fast, high efficiency and low cost, the grout method has its unique advantage of eliminating the hidden trouble of the leakage in earth rock cofferdam.