支承压力作用下深部井巷的变形规律

On the Deformation rule of deep Mine Workings of Suncun under the Action of Fixed Abutment Pressure

根据孙村煤矿深部开拓巷道的变形实测资料，本文分析了固定支承压力作用下围岩强度、开采深度以及应力边界条件对巷道变形速度的影响。本文认为，在其它条件相同的情况下，岩性在巷道变形中起决定性的作用。

ased on the practical information of the deformationof deep developing entries at Suncun colliery, the paper analysed the influence of the strength of surrounding rocksundr fixed abutment pressure, mining depth and the boundary conditions of stress on the deforming rate of entries. It considers that the properties of rocks are the determinant for the deformation of entries while the othercondition remain the same.