护巷混凝土支撑体设计与效果考察

Concrete Support Body Design and the Effect of Roadway Protection

为了减少区段煤柱尺寸,提高煤炭回收率,设计了一种矸石混凝土支撑体替代护巷煤柱,并对充填体施工工艺进行阐述。为了考察支护体的支护效果,在巷内布置测站进行观测,观测结果表明,现场采用2 m混凝土支撑体替换常用煤柱的工艺能够保持巷道围岩稳定。

In order to reduce the section size of coal pillar, and improve the coal recovery rate, design a kind of coal gangne concrete replacement, chain pillars supporting body and the filling construction technology in this paper. In order to investigate the supporting effect of the supporting body, decorate in the inside lane station, observation results show that the scene using 2 m concrete strut body to replace commonly used process can keep the roadway surrounding rock stability of coal pillar.