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传统爆破工艺由于装药量相对集中释放,爆破震动大,不利于围岩的稳定,而使用的钻杆又较重,钻眼速度慢,工人劳动强度大,炸药单耗高。为改变这种状况,就爆施工新技术在平煤集团公司大庄矿煤巷掘进中的应用进行分析和研究,采用小直径钻爆技术解决了传统爆破工艺所带来了的一系列问题,取得了良好的经济效益和社会效益。
The conventional blasting process is relatively concentrated due to the release of charges, blasting vibration is large, is not conducive to the stability of the surrounding rock, and the use of heavy drill pipe, drilling slow, labor-intensive workers, explosives, high unit consumption. In order to change this situation, the blasting application of new technology was analyzed and researched in the coal tunneling of Dazhuang Mine of Pingdingshan Coal Mining Company. The small diameter drilling and blasting technology was used to solve a series of problems brought by the traditional blasting technology. A good economic and social benefits.