PRACTICE OF SEISMIC HAZARD ASSESSMENT AND RISKS MANAGING IN ZHEZKAZGAN COPPER MINES (KAZAKHSTAN)
The major collapse which happened at Annenskiy Mine, Kazakhmys CoLtd at September 2006 is considered. Some inadequate design in conjunction deviation from design leaded to roof collapse occurred at September 2006. The collapse involved over 1 million cubic meters of rock and resulted in up to two meters of subsidence, along with fissunng, at ground surface level. The area of ground affected by subsidence at the ground surface is approximately 733,000m2.Monitoring of failure processes at Annenskiy Mine allowed avoid human victims and proceeds excavation work with the most efficiency till the last moment before the collapse.The analysis of cause of this collapse shows that the main reasons of the collapse are- rejection of low levels stowing;- disparity of design principles to rock mechanics features of the Annenskiy Mine.Shown limitation of the room and pillar mining methods for mining of the inclined seams (angle more then 20 degree) for the depth more then 300 meters.Induced seismicity is the best tool for detection and control stability of underground openings.
VLADIMIR A.MANSUROV
Kazakhmys Co LTD, Zhezkazgan, 100600, Republic of Kazakhstan
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
1181-1188
2009-08-21（万方平台首次上网日期，不代表论文的发表时间）