Abstract：Research purposes： This paper carried out simulations of several often used anti-rockburst methods by using the discrete element method in order to provide theoretical basis for anti - rockburst design and ensure the safety of tunnel construction.
Research conclusions ：The numerical simulation results show that the rock softening method by spraying water onto the rock surface is to achive the stress reduction in surface rock by reducing the rock deformation modulus, and thus suitable only for rock mass with strong water absoption. The stress release method by drilling holes is to achieve stress migration from surface rock to inner rock by drilling holes on the walls, and more suitable for weak to stronger rockbursts. The stress release method by blasting behind the work face is，however, to achieve more tangential stress transferring from surface rock to inner rock by conducting advanced blasting, and thus most applicable to strong rockbursts.
徐向东. 隧道岩爆防治作用机理初探[J]. 铁道工程学报, 2008, 25(10): 36-39.
XU Xiang-dong. Preliminarily Exploration on the Function Mechanism of Prevention and Treatment of Rockbrust for Tunnel. 铁道工程学报, 2008, 25(10): 36-39.
[5]Cundall，P. A. (1971) A computer model for simulating progressive large scale movements in blocky rock systems. Proc. Symp. Int. Soc. Rock Mechanics, Nancy, France, Vol. 1, paper no. II -8.
[6]Cundall, P. A. UDEC - A generalised distinct dement pro?gram for modelling jointed rock. Report PCAR -1 -80, Pe?ter Cundall Associates, U. S. Army，European Research Of?fice, London, Contract DAJA37 -79 -C -0548 (1980).
2008, Vol. 25 
版权所有 © 2014 《铁道工程学报》编辑部