论文部分内容阅读
某矿根据不同采矿场的客观自然情况,研究采取不同的采矿方法和程序,在采矿凿岩技术上破除了过去由一端直向另一端掘进的淺打、薄打效率低的采矿方法,創造了深孔凿岩一次爆破法。現在摘要介紹如下: (一)做好深孔凿岩的切槽工作,創造出爆破自由面,这是深孔凿岩一次爆破的一項重要准备工作,給深孔凿岩机发揮爆破威力打好条件。根据矿体寬窄不同情况,在技术上采取兩种方式。窄脉幅的矿体(7公尺以下)沿着矿脉走向开采,由矿块中間,从底而頂的橫切拉槽。寬脉
Based on the objective and natural conditions of different mining sites, a mine is studied to adopt different mining methods and procedures, and a mining method of mining shallow drilling and inefficient drilling that was used to drill from one end to the other in the past is eliminated in the mining and rock drilling technology to create a Deep hole drilling a blasting method. Now summarized as follows: (a) do a deep hole drilling cut work to create a free surface blasting, which is a blasting deep hole drilling an important preparatory work for deep-hole rock drill to play the blasting power to lay condition. According to different ore body width and width, technically take two ways. Narrow pulse ore body (7 meters below) mining along the veins, from the middle of the block, from top to bottom across the slot. Wide pulse