3SWIFT G M,REDDISH D J.Stability problems associated with an abandoned ironstone mine[J].Bulletin of Engineering Geology and the Environment,2002,61(3):227-239.
4NOMIKOS P P,SOFIANOS A I,TSOUTRELIS C E.Structural response of vertically multi-jointed roof rock beams[J].International Journal of Rock Mechanics and Mining Sciences,2002,39(1):79-94.
5QIN S,JIAO J J,WANG S.A cusp catastrophe model of instability of slip-buckling slope[J].Rock Mechanics and Rock Engineering,2001,34(2):119-134.