摘要
为了有效解决白洞矿2114巷过断层期间顶板破碎、下沉以及两帮收敛现象,提出了"超前注浆管棚支护+U型钢棚"联合控制技术,通过现场实际应用并对比监测发现,两帮收敛量由原来的0.62 m降低为0.21 m,顶板下沉量由原来的0.44 m降低为0.19 m。
In order to effectively solve the phenomenon of roof breaking,subsidence and convergence of the 2114 roadway in Baidong Coal Mine during passing through fault,the combined control technology of "advanced grouting pipe shed support + U-shaped steel shed" is put forward.Through field application and comparative monitoring,it is found that the convergence of the two sides is reduced from 0.62 m to 0.21m,and the roof subsidence is reduced from 0.44 m to 0.19 m.
作者
史战宇
Shi Zhanyu(Jinneng Holding Coal Industry Group Baidong Mining Co.,Ltd.,Shanxi Datong 037031)
出处
《山东煤炭科技》
2022年第2期8-9,12,共3页
Shandong Coal Science and Technology
关键词
巷道
断层
破碎
支护
roadway
fault
broken
support
