3Hening J G,Mitri H S. Examination of hanging-wall stability in a weak rock mass[J].CIM Bulletin,1999.
4G. Grasselli,J. Wirthc,P. Eggerb. Quantitative three-dimensional description of a rough surface and parameter evolution with shearing[J].International Journal of Rock Mechanics & Mining Sciences & Geomechanics Abstracts,2002,(04):789-800.