摘要
为了保证煤柱巷道掘进施工安全,加快巷道掘进效率;以王坪煤矿预留煤柱2401巷掘进为实例,对采空区侧巷帮采取注浆、安装"I"型钢棚等进行维护;应用实践证明,采取联合支护措施后,提高了应力区煤柱稳定性,保证了巷道安全掘进。
To guarantee the construction safety and driving efficiency in roadway remaining coal pillar,the author proposes the grouting in side-roadway side and installation of I-typed steel shed in gob,which can improve the stability of coal pillars in stress area.
引文
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