沿空留巷高水充填体支护参数的设计及工业性实践

Design and Industrial Practice of Supporting Parameters of Highwater Fillers in Air Stay Alley

为进一步减小小煤柱开采的煤炭损失,提升工作面煤炭的回采率,以屯兰矿22301工作面为例,在分析其地质、布置以及顶底板情况的基础上,对22301工作面的第一段和第二段进行普通支护后对其分别进行补强支护,并通过监测充填体的变形情况验证高水充填体护巷的效果,为后续沿空留巷开采技术的推广应用奠定基础。

In order to further reduce the coal loss of small coal pillar mining and improve the recovery rate of coal in working face,taking the 22301 working face of Tunlan Mine as an example,on the basis of analyzing its geology,22301 working faces are reinforced and supported respectively.By monitoring the deformation of the filling body,the effect of high water filling body retaining roadway is verified,which lays a foundation for the popularization and application of the mining technology along the goaf roadway.