STUDY OF DEFORMATION AND FAILURE LAWS OF DEEP ROADWAY AND COUNTERMEASURES IN JINING COAL MINE NO.2
YANG Jun1，2，SUN Xiaoming1，2，WANG Shuren3
(1. School of Mechanics and Civil Engineering，China University of Mining and Technology，Beijing 100083，China；2. State Key Laboratory for Geomechanics and Deep Underground Engineering，China University of Mining and Technology，Beijing 100083，China；3. Research Institute of Geotechnical Engineering，Yanshan University，Qinhuangdao，Hebei 066000，China)
Abstract：With the deterioration of geological environment，serious disasters increase in deep mining，and many failure phenomena occur in the roadway support，such as caving，floor heave，roof crush and so on. Taking roadway 93up06 in the 9th mining area in Jining coal mine No.2 for example，numerical simulation is used to represent the process of deformation and failure；and four conditions including roof crush，floor heave，axial wedge failure and caving along the structural planes are analyzed. Based on these failure characteristics，an optimized roadway support design is provided. The practice shows that the floor heave can be controlled effectively by changing the cross-section of the roadway，digging out the mudstone in the bottom and using bolts in floor；and then the roof crush and caving can be controlled effectively by modulating the support parameters.
杨军,孙晓明,王树仁. 济宁2#煤深部回采巷道变形破坏规律及对策研究[J]. 岩石力学与工程学报, 2009, 28(11): 2280-2285.
YANG Jun1，2，SUN Xiaoming1，2，WANG Shuren3. STUDY OF DEFORMATION AND FAILURE LAWS OF DEEP ROADWAY AND COUNTERMEASURES IN JINING COAL MINE NO.2. , 2009, 28(11): 2280-2285.
