封堵水库穿坝涵管的措施

Measures for closing trans-dam culvert of reservoir and construction experience

介绍了荔浦县对1座斜墙土坝(中型水库)、10座均质土坝(小型水库)进行开挖,采用浇筑砼堵头及砼截水环,基坑回填纯黄粘土等措施,对1座粘土心墙土坝(小型水库)采用预制砼管挖沉井,井内浇筑砼截水环、回填粘土等措施,封堵穿坝放水涵管,根除大坝安全隐患,以及封堵放水涵管的施工经验。

An introduction is made on the measures that Lipu county has adopted to close the trans-dam culverts for completely removing the hidden trouble of main dams, including excavation, grouting concrete blockage and cutoff collar, backfilling pure yellow clay into foundation pit etc. for one inclined core earth dam of a mid-scale reservoir and ten homogeneous earth dams of the small-scale reservoirs; dredging sinking well with precast concrete pipe, grouting concrete cutoff collar inside well and backfill clay etc. for one clay core dam of a small-scale reservoir. The construction experience is also introduced.