溶岩地区大范围串通段高压帷幕灌浆的施工探讨

Discussion on the Construction Method of High Pressure Curtain Grouting in Karst Area

在溶岩地区,由于溶蚀作用而形成的溶洞、溶槽、溶缝、层间软弱带等地质缺陷是极为寻常的。这些缺陷在空间上的分布形态是极其复杂的,很可能相互连通并形成透水路径。本文将结合水布垭水电站右岸平洞灌浆的施工实践,探讨在溶岩地区出现大范围钻孔串通的帷幕灌浆方法。

Abstract： In karst area, karst cave, groove, crevice and the weakness of layer are the extraordinary geological faultiness, which were taken its shape with the action of corrosion. These faultiness＇ shape,distribution and spread are extremely complicated, and water maybe flow through these connected faultiness. According to SHUIBUYA hydro-electric power station＇s practice of grouting in the cave of right bank, this paper will probe into the technique of grouting construction to handle the large range of intercommunication-segments.