Safety Analysis of Large Section Roadway Heading Blasting and Improve of Blasting Network

摘要：

A comprehensive analysis was conducted on variety reasons for misfires of blasting in underground coal mines.According to the Safety Regulations in Coal Mine and the Safety Regulations in Blasting, this paper proposes practical methods to prevent misfires and appropriate procedures to treat a misfired blast. With regard to misfires using series circuit connection in a full face large underground drift blasting, series-in-parallel circuit connection is recommended to reduce resistance of the network, and improve the reliability of detonation. With the proposed method of firing connection, practical application shows that a full-face blasting has no misfire and the safety of blasting operations is improved.

关键词： coal mine large underground drift blasting blasting safety misfire blasting network

作者: LI Lingchun

作者单位: Anhui University of Science and Technology, Huainan, China

会议类型: 国际会议

会议名称: The Second Asian-Pacific Symposium on Blasting Techniques(第二届亚太地区爆破技术研讨会)

会议地点: 大连

会议语种:英文

页码: 603-606

在线出版日期: 2009-07-01（万方平台首次上网日期，不代表论文的发表时间）