The Optimization Study Of Mining Sequence In Hongtoushan Copper Mine Deep Stope

With our continuous mining of mineral resources, deep mining has become increasingly common. And in the process of deep underground mining operations, we will encounter many complex problems, some of these problems affect the normal production of mine, some even directly cause major accidents, endangering people’s life. Therefore, how to safe and effective for mine exploitation has become today’s more and more attention in the field of mining engineering.Taking Liaoning Fushun Hongtoushan copper mine as the engineering background, using the engineering software ABAQUS to simulate its27th stope. Mainly from the pillar、mining sequence and filling body three angles discuss the changes of the stope surrounding rock stress field under different conditions.(1) The three pillar permutation and combination to get eight kinds of layout plan, by comparing and analyzing of data of the change of the stress field of surrounding rock in different solution, to get the optimal arrangement scheme.(2) About5pieces of ore body shall be carried out in accordance with the6kinds of mining sequence, and each of the mining sequence has4kinds of permutation and combination, by comparing and analyzing of data of the change of the stress field of surrounding rock under different mining sequence, to get the optimum mining sequence.(3) Discussion of filling body is mainly from the perspective of stiffness, with different stiffness were calculated respectively, through the comparison and analysis of data to obtain the stress field of surrounding rock as filling body decreases with the increasing of stiffness.