二次采动影响期间沿空留巷矿压显现规律
Strata Behavior Laws of Gob-side Entry Retaining During the Secondary Mining Influence Period
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摘要: 以屯兰煤矿18207工作面的胶带巷为研究对象,分析了二次采动影响期间该沿空留巷巷道表面位移量以及巷旁充填体的承载与变形规律。研究结果表明:二次采动影响期间沿空留巷顶底板、两帮及充填体是稳定的。Abstract: Taking the belt roadway in 18207 working face in Tunlan Coal Mine as research object, this paper analyzes the roadway surface displacement of gob-side entry retaining as well as load bearing and deformation laws of filling body beside roadway during secondary mining influence period. The results of the study show that the roof, floor, two walls and filling body of gob-side entry retaining are stable during the secondary mining influence period.