HAZARD SEISMIC NUCLEATION AND PREDICTION OF ROCK BURST AT DONGGAUSHAN COPPER MINE
Stuides of the rock burst prediction are carried out on the basis of the data from Dongguashan Copper Mine, the deepest metal mine in China. The seismic responses to mining at this mine are investigated through the analyses of spatial-time distribution of hypocenters, apparent stress, and displacement of seismic events. Based on the results and the theory of asperity in seismic source mechanism, a conceptual model of assessment of hazard seismic nucleation is proposed. A mine seismic stiffness method for rockburst prediction is discussed in the framework of the unstable failure theories. In addition, after the analyses of rock failure cases at Donggauashan Mine, the rate of change in the ratio of stiffness of rock in nucleation area to its surrounding area is defined as a criterion for rockburst prediction.
LI-ZHONG TANG CHANG-LIANG PAN LING-HUI WANG FENG DAI
School of Resources and Safety Engineering, Central South University Changsha, 410083, P.R.China Dongguashan Copper Mine, Tongling Nonferrous Metals Group Holdings Co., Ltd.Tonglin, 244031, P.R.Chi Department of Civil Engineering, University of Toronto Toronto, M4Y 1R5, Canada
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
1167-1172
2009-08-21（万方平台首次上网日期，不代表论文的发表时间）