马坑铁矿采空区摸底与地质储量核查研究

Research on Checking the Goaf and Geological Reserves in Makeng Iron Mine

马坑铁矿历经20余年开采,存在大量采空区的同时,也留下大量未开采的矿块、采空区残留矿石、生产矿柱、保安矿柱以及未摸清的矿体未回收。通过对马坑铁矿+200m以上采空区和地质储量调查、对比分析,提出了利用采空区体积反推采出矿石量、计算理论剩余储量并与实际剩余储量进行对比的方法,与实际出矿量对比结果验证了该方法的可行性和准确性,为其他同类矿山采空区与剩余储量核查提供参考。

After more than 20 years of mining,Makeng Iron Mine has left a large number of unmined ore blocks,residual ore in the goaf,production pillars,security pillars,and unidentified ore bodies that have not been recovered.Through the investigation and comparative analysis of the mined-out area and geological reserves of the Makeng Iron Mine+200m above,a method of using the volume of the mined-out area to inversely calculate the amount of ore recovered,calculating the theoretical remaining reserves and comparing them with the actual remaining reserves,is proposed.The results of the comparison of ore output verify the feasibility and accuracy of the method,and provide a reference for other similar mines to verify the goaf and remaining reserves.