8Mitri H S, Khan U H. Design procedure for cemented fill for open stoping operations[J]. Min Sci Technol, 1991,12(1 ) : 37- 44.
9Chris H, Martel S J. Pit crater formation on Kilauea volcano, Hawaii [ J ]. Journal of Volcanology and Geothermal Research, 1998,86(1/2/3/4):1-18.
10Singh U K, Jain P N, Prasad M. Post-pillar behaviour at deep levels in a copper mine[J ]. International Journal of Rock Mechanics and Mining Science & Geomechanics Abstracts, 1995,32(6) :585 - 593.