摘要： 对小箐沟水库供水工程大坝垂直裂缝形成情况和成因进行了分析，并对化学灌浆处理的加固原理、灌浆材料、浆液配合比、施工工艺和灌注效果等进行探讨研究。施工后情况表明，大坝裂缝采用化学灌浆是可行的，且效果显著。

Abstract: As vertical cracks were found on the dam of water supply project of Xiaoqinggou reservoir, this paper analysed the cause reason and discussed about the treatment measure by grouting in aspects such as working principle, material, mix proportion, construction technique and effect. The treatment showed that grouting was practical and of good effect.