下向充填采矿进路回采凿岩爆破技术优化应用

Application and optimization of drilling and blasting technology in down filling mining

充填采场顶板充填体作为人工假顶,对充填质量要求尤为重要,机工爆破技术参差不齐,对充填体破坏现象时有发生,对回采安全带来隐患,同时采矿效率大幅下降,如何合理确定爆破技术参数,优化凿岩爆破技术可降低爆破对爆破范围以外岩石和充填体的损伤,最大限度地保持充填体原有的强度和稳定性,保证回采速度与工程质量,同时降低材料消耗,降低成本,是我们研究的课题。

Filling stope roof filling body as artificial roof, is particularly important for filling quality requirements, the uneven blasting occurred on backfill damage phenomenon, brought a hidden danger to the safe mining, and the mining efficiency decline, how to determine the reasonable blasting technical parameters, optimization of drilling and blasting technology can reduce the blasting of rock blasting beyond the scope and filling body damage, maximize the strength and stability of backfill mining speed and ensure the quality of the project, while reducing material consumption, reduce the cost, is the subject of our study.