Abstract: After the completion of Gandjelas dam construction, seepage of abutment above 1 529．80 m occurred when the water level was 1 545.0 m.Aiming at the seepage, curtain grouting on the dam abutment was carried out． The qualified rate in water pressure test was 100％ and the collecting rate of drill core was high, which showed the grouting was of good effect.

摘要： Gandjelas 大坝建成后，当蓄水到1 545．00 m 高程时，坝肩1 529．80 m 高程以上部位出现渗漏。针对渗漏情况，在坝肩适当范围内进行帷幕灌浆处理，灌浆后压水试验合格率100％，岩芯采取率高，满足设计要求。