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某铜矿节理裂隙发育,矿体围岩极其破碎,炮孔成孔率低,需大量加固支护,优选美固MP 364矿用树脂进行现场化学注浆试验,确定注浆压力及扩散半径等参数,建成注浆工艺系统。现场工业应用表明:按照推荐注浆材料配比及工艺施工,岩体强度得到极大提高,炮孔成孔率提高25%,采场顶板允许暴露面积增大110 m2,采场中矿石滞留量减少约10%,矿石回收率提高23.3%,实现加固矿体,提高炮孔成孔率,增大矿石回收率的目标。
A copper ore fissures develop, the ore body rock is extremely fragmented, the borehole porosity is low, a large number of reinforcement and support required, preferably Mine solid MP 364 mineral resin on-site chemical grouting test to determine the grouting pressure and diffusion radius Parameters, built grouting process system. The field industrial application shows that according to the recommended ratio of grouting material and construction, the strength of rock mass is greatly improved, the hole formation rate of blast hole is increased by 25%, the allowable exposed area of stope roof is increased by 110 m2, Reduce about 10%, ore recovery rate increased by 23.3%, to achieve consolidation of ore bodies, to improve the hole hole rate and increase ore recovery rate of the goal.