STUDY ON THE MECHANISM FOR WATER TRANSPORTATION AND ROCKMASS STABILITY CONTROLLED BY PREFERRED PLANE IN UNDERGROUND MINING

Preferred planes have distinct control effect on hazard occurrence and development in mining area.In this paper,a good deal of examples is cited to discuss the mechanism for rockmass stability and for water transportation controlled by preferred plane,furthermore,the corresponding superior indexes and evaluation criterion have been set up.All those demonstrate a new thinking way and analysis method for study of hazard control during underground mining.