浅孔房柱法在地下铝土矿回采中的应用

Application of Short-Hole Room-Pillar Method on Underground Bauxite Mining

针对我国铝土矿地下开采存在的问题,以段村-雷沟铝土矿9#采场为例,根据其回采技术难点,优选出了浅孔房柱法的回采,研究确定了合理的采场结构参数、适宜的爆破参数和有效的顶板支护方式,从而保证从该采场矿体安全高效回采出5.68万t矿量。实践成果为铝土矿地下开采提供了成功范例,具有重要的工程意义。

Aimed at the existing problems of underground bauxite mining in China, and thus taking the 9^# stope of Duancun- Leigou bauxite as an example, the short-hole room-pillar method was chosen as an optimal option for mining on the basis of the difficulties of mining technology. And the reasonable structure parameters of stope, suitable blasting parameters, and effective roof support methods were determined, so as to make sure that the volume of 5.68 t bauxite were mined effectively and safety from the stope. Consequently, this study provided a successful example for underground bauxite and had a great engineering significance.