supported by the National Natural Science Foundation of China (No.10402033)
The localization damage and deformation characteristics of multiple rock in mined-out area under thick soil layer were investigated by acoustic emission (AE)-based physical similar simulation experiment and damage t...
supported by the National Natural Science Foundation of China (No.10402033 and No.10772144)
The damage process of fractured rock mass showed that the fracture in rocks induced roof collapse in Yangchangwan Coal Mine, China. The rock mass was particularly weak and fractured. There occurred 6 large-scale dynam...
the National Natural Science Foundation of China(10402033,10772144)
In virtue of effect of N-S intensive ground stress and mining disturbance to +579E2EB_(1+2) mining site at Weihuliang Mine,the dip angle and section height is 65° and 52 m,respectively,the collapses happed frequently...