Dynamic rock mechanics and blasting Numerical simulation of surface blasting in influence of stability of underground chambers

Taking Jiangxi Yong Ping copper mine as the background, the earth continuous profile imaging system (EH4) is employed to test the deep rock mass; With IDTS3850 testing instruments is used in site to measure the vibration of open-pit blasting, and numerical simulation is carried out to compare with the measured data (Chang et al. 1989). Through the numerical simulation on the stability of chamber, the study provides the basis for the production safety during the combined mining.