6Bye A R, Bell F G. Stability assessment and slope design at Sand- sloot Open Pit, South Africa [ J ]. International Journal of Rock Me- chanics and Mining Sciences ,2001,38 (3) :449-466.
7He M C, Feng J L, Sun X M. Stability evaluation and optimal excava- ted design of rock slope at Antaibao Open Pit Coal Mine, China[ J].International Journal of Rock Mechanics and Mining Sciences ,2008, 45 (3) :289-302.
8Rose N D, Hungr O. Forecasting potential rock slope failure in open pit mines using the inverse-velocity method [ J ]. International Journal of Rock Mechanics and Mining Sciences,2007,44(2) :308-320.
9Singh T N, Singh D P. Slope behaviour in an opencast mine over old underground voids [ J ]. International Journal of Mining, Reclamation and Environment, 1991,5 (4) : 195-201.
10Singh T N, Singh D P. Prediction of instability of slopes in an open- cast mine over old surface and underground workings [ J ]. Interna- tional Journal of Mining, Reclamation and Environment, 1993,6 (2) :81-89.