The Rock Failure and Fall of the Large Underground Mined-out Area
ZHAO Wen (Department of Civil Engineering ,Northeastern University ,Shenyang 110006,China )
The theoretical analysis, the computer simulation and the practice of the work all indicated that enlarging the mined-out area could tempt the rock fall. The rock falling process acted on different phrases. The large mined-out area could diffuse the impact current quickly. When the fall didn抰 get to the ground, the probability of the large fall was small.
【CateGory Index】： TD327