打磨岗水库大坝劈裂式灌浆帷幕形态及成因分析

Analysis of Split Grouting Curtain Shape and Cause of Formation on the Dam of Damogang Reservoir

通过“全孔护壁、孔底灌注”劈裂式灌浆对土坝进行加固施工，一年后挖竖井检查及对比观测资料，发现沿坝轴线形成６ 或７ 条主浆脉构成防渗帷幕带，达到了坝体补强加固防渗的目的，并对灌浆机理进行了探讨．

By split grouting of “complete hole wall protected, bottom pouring” in construction, a vertical well is dug for checking and contrasting affer a year. As a result, six to seven chief grouting veins form a percolation protecting curtain along the axis of the dam. This approachs the aim of strengthening the dam and protecting percolation, and helps the study of grouting.