单一低透深部煤巷快速掘进浅孔预裂松动爆破技术
Rapid Excavation Shallow Hole Pre-Splitting Loose Blasting Technology in Single Low Permeability Deep Coal Roadway
摘要: 随着煤矿不断向深部开采，单一透气性深部厚煤层煤巷掘进因受瓦斯制约影响，掘进难度也越来越大。为解决这一技术难题，提高煤巷单进速度，本文进行了单一低透深部煤巷快速掘进浅孔预裂松动爆破技术研究，通过在鹤煤六矿2125下顺槽试验研究，有效地解决了瓦斯治理瓶颈，极大地提高了掘进条件，为今后深部地区煤巷快速掘进提供了安全保障。
Abstract:
With the continuous deep mining of coal mines, the excavation of single permeability deep thick coal seam roadway is more and more difficult due to the influence of gas restriction. In order to solve this technical problem and improve the single entry speed of coal roadway, this paper studies the technology of shallow hole pre-splitting loose blasting for rapid excavation of single low permeability deep coal roadway. Through the experimental study of 2125 lower crossheading in Hebi No.6 Coal Mine, the bottleneck of gas control is effectively solved, the driving conditions are greatly improved, and the safety guarantee for rapid excavation of coal roadway in deep area in the future is provided.
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