观音阁水库混凝土坝上游水平裂缝修补试验研究

Studies on the Crack Repairment of Upstream Level in Concrete Dam of Guanyinge Reservoir

观音阁水库是我国北方寒冷地区第一座大型碾压混凝土坝,由于受当时条件限制,上游高程为233.25 m的水平裂缝一直未作处理。通过室内和现场试验研究,提出了采用裂缝表面粘贴封堵法封堵漏水通道的切实可行的处理方案,经工程采用,运行效果良好,为其他类似工程裂缝的处理提供了可供借鉴的经验。

Guanyinge reservoir is a first great rolling concrete dam in cold area of north of China.Because of condition restriction at that time,the crack of 233.25 m in height in upstream level hadn＇t been treated.The feasible scheme of using the cract surface affixing method to blank off the channel of leaking water was proposed through lab test and local experiment.This treating scheme applied in the engineering could get good effect,which provided the reference experience for other similar engineering crack treatments.