DEVELOPMENT WORKING SUPPORT METHOD AND PRACTICE IN THE HIGH GROUND PRESSURE MINE
With the increase in underground mining depth and the ground pressure redistribution because of mining, the problem of development working failure is more serious because of the high ground pressure. It is the key to keep those development workings in stable condition, so it is very necessarily to take effective support method. Based on the theoretical analysis and the in-situ test, it is found that the depressurized mining and support can be taken to keep the development stability in the high stress area. According to the mining operation of ore deposit, the ground pressure surrounding the stope tunnel can be reduced by the depressurized mining technology, thus the tunnel destroy degree can be reduced and the stability capability of rock mass can be increased. Besides, the relations between depressurized mining and the support are analyzed. It indicates that the support can coordinate the tunnel deformation, but can not control the tunnel distortion. Therefore, the support form and the parameters can be choiced based on the stress reduction degree after mined by depressurized mining method. Based on this study, the method is successfully applied in the mine, and the results show that the depressurized mining and support can keep the tunnel in stable condition.
WEN-JIE WANG
College of Resources and Environmental Engineering, Wuhan University of Science and Technology Wuha, 430081, P.R.China Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Resources, WUST Wuhan 430081, P.R.China
国际会议
The 7th International Symposium on Rockburst and Seismicity in Mines(2009年第七届国际岩爆与微振动性学术研讨会)
大连
英文
875-880
2009-08-21（万方平台首次上网日期，不代表论文的发表时间）