Application of steel fibre reinforced sprayed concrete to a deep tunnel in weak rocks

Based on an engineering background of a deep tunneling in weak rocks,the numerical modeling is used to copmare different support schemes of tunnel at great depth in this paper,Focused on the general behaviors of weak rocks at great depth,a tunneling scheme with rock bolting and steel fibre reinforced sprayed concrete is proposed.This scheme is practiced successfully at a deep tunnel in weak rocks in Coal Mine No.10 of Hebi Coal Mining Administration.