陕西煤炭2024，Vol.43Issue(2)：34-38,5.DOI:10.20120/j.cnki.issn.1671-749x.2024.0207
预裂爆破孔间距设计在冲击地压防治中的应用
Application of hole spacing design of presplitting blasting in prevention and control of rockburst
董亚东 1魏晓虎 1高昊锐 1王团 1李梓豪1
作者信息
- 1. 鄂尔多斯市伊化矿业资源有限责任公司,内蒙古 鄂尔多斯 017300
- 折叠
摘要
Abstract
Strong strata behavior appeared in Yinhua Mining 30209 working face during mining period.In order to solve the problem,the roof deep hole pre-splitting is introduced to carry out pressure relief.We analyze the range of fracture zone with 96 kg explosive blasting,simulate the hole spacing of 8 m,10 m and 15 m,respectively,by numerical simulation means,and study the development range of plastic zone under different hole spacing.The new parameter design scheme is tested in the field,and the statistical results of microseismic monitoring data are obtained.The comparison of the pressure relief effect at different hole spacing proves that the designed parameter scheme has better pressure relief effect.关键词
冲击地压/预裂爆破/孔间距/参数设计/微震监测Key words
rock burst/pre-splitting blasting/hole spacing/parameter design/microseismic monitoring分类
矿业与冶金引用本文复制引用
董亚东,魏晓虎,高昊锐,王团,李梓豪..预裂爆破孔间距设计在冲击地压防治中的应用[J].陕西煤炭,2024,43(2):34-38,5.
