摘要
通过对半煤岩巷道爆破理论分析,建立药孔裂缝断裂模型,得到了爆轰裂缝形成的长度计算方法,据此设计了半煤岩巷道爆破炮眼布置方法和炮眼参数;依据常用半煤岩巷道支护方法建立两种支护方案,并通过FLAC3D软件进行仿真分析,得到较优支护方案;通过半煤岩巷道分析模型可进一步细化支护参数,得到更优化的支护方案。
Based on the analysis of blasting theory of semi coal-rock roadway,the fracture model of explosive hole crack is established,and the length calculation method of detonation crack is obtained.Based on this,the blast hole layout method and blast hole parameters of semi coal-rock roadway are designed.Two kinds of support schemes are established according to the commonly used support methods of semi coal rock roadway,and the simulation analysis is carried out by FLAC3D software to get the better support scheme.The analysis model of half coal and rock roadway can further refine the supporting parameters and get a more optimized supporting scheme.
作者
李志刚
Li Zhigang(Sitai Mine of Datong Coal Mine Group Co.,Ltd.,Datong Shanxi 037001)
出处
《山西冶金》
CAS
2020年第1期51-53,共3页
Shanxi Metallurgy
关键词
半煤岩
掘进
爆破
支护
semi coal-rock
excavation
blasting
support
