Rock Curtain

By October 24, 2014 No Comments
Rock curtain grouting is the filling of fractures and fissures in rock to reduce permeability, strengthen or stabilize the rock, or both. The grout curtain is constructed by the drilling and grouting of closely-spaced drill holes oriented to optimize the intersection of rock joints. The most common application is to reduce water seepage and pressure beneath a dam or other structure. Rock curtain grouting techniques are also utilized to control seepage beneath cut-off walls for deep excavations and shafts.