Publication Abstract

Grouting and Ground Treatment: Proceedings of the Third International Conference, (ASCE)

Grout Curtain Effectiveness in Fractured Rock by the Discrete Feature Network Approach
A. A. Shuttle, E. Glynn

This paper presents a discrete fracture approach for analysis of foundation grouting in fractured rock. In this approach the grout injection boreholes and the fractures intersecting them are modeled explicitly. Grout is injected into the fractures directly and indirectly connected to the grout injection boreholes. This approach is more realistic than conventional analyses which rely on a reduction in “effective” conductivity, without considering the geometry of fracture pathways through the rock mass. The approach is applied to determine the relative effectiveness of 2 or 3 rows of grout holes for the same grouted length.

 article #1172; publication #62 (GRT-2003)