赵庄煤业深埋软顶巷道合理支护参数研究OA
Study on reasonable support parameters of deep buried soft roof roadway in Zhaozhuang Coal Industry
赵庄煤业1313工作面回风顺槽巷埋深较大,且巷道顶板为软岩,需对其合理的支护参数进行研究.通过围岩钻孔窥视得出,1313回风顺槽浅部围岩较为破碎,其围岩松动圈范围为2m;采用FLAC3D数值模拟确定出合理的锚杆长度为2.4m、锚杆直径为24mm、锚杆间排距为0.9m.现场应用结果表明,采用优化的支护参数后,巷道顶底板最大移近量为95 mm,两帮最大移近量为63 mm,整体变形量较小,满足矿井安全高效生产需求.
The buried depth of return air roadway in 1313 working face of Zhaozhuang Coal Industry is large,and the roof of roadway is soft rock,so it is necessary to study its reasonable support parameters.Through the observation of surrounding rock drilling,it is concluded that the shallow surrounding rock of 1313 return airway is relatively broken,and the range of loose circle of surrounding rock is 2 m.FLAC3D numerical simulation is used to determine the reasonable…查看全部>>
王向军
晋能控股集团赵庄煤业公司,山西长治 046600
矿山工程
深埋巷道支护参数数值模拟
deep buried roadwaysupport parametersnumerical simulation
《煤炭与化工》 2024 (5)
19-21,26,53,5
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