7M.Bonini,M.Barla,G.Barla. FLAC applications to the analysis of Swelling behaviour in tunnels[Z].Department of Structural and Geotechnical Engineering,Politecnico di Torino,Italy,.
8Consulting Group Inc. FLAC version 5.0 manual[M].America:Itasca,2002.
9Cundall P.A. A Computer Model for Simulating Progressive Large Scale Moments in Blocky Rock System[A].Nancg,Francy,1971.