With the use of directionally drilled boreholes, REI can install effective grout curtains that shield your workings from high inflows. Boreholes may be placed in overlying or underlying strata, aligned with projected entries or tunnels, or steered to intercept water-bearing features. Single boreholes or multi-lateral boreholes may be developed to maximize coverage area and formation of a grout curtain. High pressure grout pumps are utilized to inject grout into formations through a sealed standpipe or through downhole packers.
