下桥水电站帷幕灌浆施工技术

下桥水电站工程地形、地质条件复杂,大部分为硅酸盐岩地形,岩溶比较发育,属岩溶峰丛～洼地的地貌景观.河床与两岸岩溶十分发育,坝基及坝肩渗漏严重,通过采用灌浆洞帷幕灌浆工程和坝基灌浆廊道帷幕灌浆处理取得良好的效果,保证了水库有效蓄水和电厂正常运行,对岩溶地质条件下的坝基防渗技术具有重要参考价值.

Curtain Grouting Engineering Technique Applied to Xiaqiao Hydropower Station

Xiaqiao Hydropower Station is built at where it is complex in topography and geology.Most part of the area is covered by silicate rocks with developed karst,characterized in karst peak cluster and depression.As serious seepage is found at dam foundation and dam abutment for there is well developed karst at the river bed and on two river banks,curtain grouting is carried out in grout hole and grouting gallery at dam foundation.Such solution yields favorable results,and ensures effective impoundment of the re...