Intensified extracting gas and rapidly diminishing outburst risk using deep-hole presplitting blast technology before opening coal seam in shaft influenced by fault

摘要：

Deep-hole presplitting blast technology is an effective method to intensively increase the permeability of coal seam and high-efficiency extract gas. Aimed at the drivage shaft working place of opening No. 13-1 Coal seam influenced by fault in Panyi Coal Mine, this paper comprehensively took advantage of the technology of deep-hole presplitting blast and intensified increasing permeability, the technology of reinforcing coal body using metal skeleton, as well as the technology damming and extracting gas of outside of metal skeleton, diminished the outburst risk only after 18 days, and got the purpose of rapidly diminishing outburst risk. And this provided an effective solution of rapidly diminishing outburst risk and safety opening coal seam for similar conditions.

关键词： open coal seam in shaft deep-hole presplitting blast metal skeleton rapidly diminishing outburst risk

作者: Cai Feng Liu Zegong

作者单位: School of energy and safety, Anhui University of Science and Technology, Huainan 232001, China

会议类型: 国际会议

会议名称: The First International Symposium on Mine Safety Science and Engineering (首届矿山安全科学与工程学术会议)

会议地点: 北京

会议语种:英文

页码: 448-453

在线出版日期: 2011-10-27（万方平台首次上网日期，不代表论文的发表时间）