浅谈垂直防渗技术在小型病险水库除险加固中的应用

Discussion on the Application of the Vertical Seepage Prevention Technology in the Danger Elimination and Reinforcement for the Small Dangerous Reservoirs

昆明市已建成小（Ⅱ）型以上水库794座，其中，病险水库596座，病险率高达49．9％，其主要问题是大坝渗漏、泄洪设施建设标准低、坝坡抗震稳定不达标等问题。大坝渗漏控制是水库除险加固工作中的一项重要措施，目前大坝防渗处理技术措施较多，本文结合昆明地区的实际情况，分析了大坝渗漏的类型、成因、各类防渗处理技术的特点，着重研究充填灌浆、劈裂灌浆和混凝土防渗墙技术及建设过程中注意的问题，为小型水库的防渗处理提供参考。

Kunming City has built 794 small above （II） reservoirs, including 396 dangerous reservoirs, with the danger rate as high as 49.9%, including the main problems as the dam seepage, low flood discharge facility construction standard, unqualified dam slope seismic stability, etc. The seepage control of the dam is an important measure for the danger elimination and reinforcement for the reservoir. At present, there are quite a lot of dam seepage prevention treatment technical measures. Based on the actual situation of Kunming, this paper analyzes the type, cause of the dam seepage, the characteristics of each seepage prevention treatment technology, emphasizes on studying the filling grouting, split grouting, concrete seepage prevention wall technologies as well as the issues should be noticed during the construction, providing the reference for the seepage prevention treatment of the small reservoirs.