基于数值模拟的马城铁矿采区矿房布置方式研究

Study on Layout Mode of Bordroom in Mining Area of Macheng Iron Mine Based on Numerical Simulation

深部地下充填矿山采场稳定性是采矿生产重要的考虑因素,矿房不同的布置方式会直接造成采区围岩应力场、位移场分布规律的不同,导致不同的围岩破坏形式,因此结合马城铁矿上行开采方法,对四种采区矿房的布置方式所造成矿岩力学变化,进行数值模拟,得出采区矿房正三角布置方式最优。

Stope stability of deep underground filling mine is an important factor considered in mining production.Different layout of mining chamber will directly cause different distribution laws of stress field and displacement field of surrounding rock in mining area,which will lead to different failure forms of surrounding rock.Therefore,combined with the upward mining method of Macheng Iron Mine,the mechanical changes of ore and rock caused by four layout modes of mining houses in mining area were numerically simulated,and it is concluded that the positive triangle layout mode of the bordroom in mining area is the best.