预裂爆破技术在空场嗣后充填采矿方法中的应用

通过某矿山企业的应用技术攻关课题，研究在开采条件满足的储矿区域采用分段空场嗣后充填采矿方法取代效率低、劳动强度大的上向水平分层进路式充填采矿方法，并引入中深孔预裂爆破技术。通过预裂爆破设计及现场爆破试验，确定了适合的中深孔预裂爆破设计方案。该方案的成功应用，不仅对开采后矿房两侧岩壁的平整与稳定起到了关键作用，保障了人员与设备的作业安全，而且有利于提高企业的经营效益，更加符合以人为本、环保安全的现代化企业发展理念。

Application of Pre-splitting Blasting Technology in Open Stope Backfill Mining Method

Through the application of technical research in a mining enterprise,the subsection backfill mining method is adopted to replace the horizontal layer-up backfill mining method with low efficiency and high labor intensity in the ore storage area where the mining conditions are met,and the medium-length hole pre-splitting blasting technology is introduced.Through the pre-splitting blasting design and field blasting test,the suitable design scheme of medium and deep hole pre-splitting blasting is determined.The successful application of this blasting scheme not only plays a key role in the smoothing and stability of the rock walls on both sides of the mining room after mining,but also ensures the safety of personnel and equipment,and is beneficial to improve the operating efficiency of enterprises,and more in line with the development concept of modern enterprise with people-oriented,environmental protection and safety.