Impact of Advanced Leading Conduit Grouting on Stability of Soft Rock Tunnel

Abstract

Abstract: Taking a certain circular tunnel as an engineering example，the numerical simulations on the surrounding rock pre-reinforcing with and without advanced leading conduit grouting during tunnel construction are carried out by FLAC3D，and the distributions of displacement field and plastic zone of soft rocks in these two cases are obtained.The results show that the tunnel deformation is effectively contro#ed by adopting the advanced leading conduit grouting.It is safe to perform the advanced leading conduit grouting in this tunnel，which offers reference to the safe construction of soft rock tunnel.

Key words: Advanced leading conduit grouting, FLAC3D, Soft rock tunnel, Numerical simulation

YU Yong-Qiang, CHEN Tian-恩, ZHANG Wen-Xin. Impact of Advanced Leading Conduit Grouting on Stability of Soft Rock Tunnel[J]. Metal Mine, 2013, 42(03): 32-35.

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Impact of Advanced Leading Conduit Grouting on Stability of Soft Rock Tunnel

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