深部松散全煤巷道围岩变形特征分析

Deformation characteristics analysis of surrounding rock in deep loose coal roadway

以新集矿区某具体巷道为例,根据工程实测结合数值模拟分析了深部开采松散全煤巷道两帮及顶板变形特点。结果表明:深部开采巷道两帮中部表现为显著的不稳定塑性变形;顶煤与直接顶结构面中部产生不稳定层间离层。分析结果可为深部开采全煤巷道合理支护选择提供依据。

A concrete roadway in xinji mining as an example,according to the engineering measurement combined with numerical simulation for analysing the two sides of loose coal roadway and roof deformation characteristics in deep mining.The results show that the central of two sides of deep mining roadway characterized by significant plastic deformation instability;Top-coal and the central of immediate roof structure produced unstable identification of interlayer separation.Analysis results can be reasonable choice for deep coal roadway supporting.