香炉山钨矿高大采空区充填回采方法优化研究

充填回采顺序的合理与否影响着地表地质灾害的发生。针对香炉山钨矿大规模地下高大采空区,用类比法确定充填体强度,拟定4种不同的充填回采方案并用数值模拟方式进行结果比较。结果表明,从经济角度,先两翼再中间的长方形充填回采方案可取,而充填面积如果大于回采区面积的2倍且充填区域的形状接近正方形,则充填后回采更安全可靠。

Optimized Research on Filling and Stoping Mining Method of Xianglushan Tungsten Mine

The reasonable of fill sequence affect the occurrence of surface geological disasters, and produce different social benefits. the paper introduces tall massive underground mined-out area on Xianglushan, determined by analogy filling body strength and develop four different filling recovery program and numerical simulations results were compared. The results showed that: From an economic point of view, the first and then in the middle of the rectangular wings filling recovery program more desirable, and backfill the area if more than 2 times the mining area and the area near the square shape of the filling, then after filling recovery is more secure.