OPTIMIZATION OF MINING PARAMETERS FOR RATIONAL EXPLOITATION OF DONGGUASHAN COPPER ORE DEPOSIT

Dongguashan deposit is the largest and deepest buried copper ore deposit found now in China.There is potential danger of rock burst of the deposit when it is mined.The paper describes a three dimensional finite element software taking energy release rate as optimization object.By means of this software,the energy release of wallrock can be simulated and calculated when the deposit is mined,thus the optimum parameters for mining can be determined.The software and the calculation procedure introduced in the paper can be taken for reference by other operators when they make design of deep underground mines.