通过参窝水库等工程实践，介绍一种在水库正常运行情况下，进行横缝堵漏的方法———膨胀浆塞法，即在坝顶于大坝２道止水带之间骑横缝垂直造孔，用一次灌浆法，将水溶性聚氨酯复合料灌注入孔内，达到胀紧横缝止漏的目的。该法工艺简单，效果明显，工程造价低，止漏全面彻底。 Through the practice of Shenwo reservoir and other projects, a method of plugging the transverse joint under normal operation of the reservoir is introduced, ie the expansion grouting method, that is, the horizontal joint Vertical hole, with a grouting method, the water-soluble polyurethane composite material poured into the hole, to tighten the tight seal transverse leakage purposes. The method is simple, the effect is obvious, the project cost is low, stop leak completely and completely.