浅埋厚煤层综放工作面主回撤通道矿压规律研究与分析  

Mine Pressure Law of Main Removal Roadways in Fully-mechanized Mining Faces in Shallow-buried-thick Coal Seams

作　　者：闫文龙 YAN Wenlong(Production Technology Division,Shanxi Daping Mining Co.,Ltd.,Changzhi 046600,China)

机构地区：[1]山西大平煤业有限公司生产技术科

出　　处：《山西煤炭》2019年第3期39-43,共5页Shanxi Coal

摘　　要：浅埋深综采工作接近主回撤通道过程中,顶板压力大,巷道变形严重,影响综采设备回撤速度及工作面正常接替。通过不连沟煤矿F6201工作面末采阶段主回撤通道矿压监测,分析得出了巷道破坏变形、垛式支架压力分布等规律,提出工作面距主回撤通道8m^9m位置时,必须强化巷道支护,确保垛式支架的工作阻力保持在8800kN以上,为进一步优化回撤巷道支护参数提供了理论和实践依据。In the process of shallow-buried-deep fully mechanized mining face approaching the main removal gateway,high roof pressure and serious roadway deformation influence the withdrawal speed of equipment and the normal replacement of working faces.By monitoring the mining pressure of the main removal roadways in the end of mining stage of the F6201 working face in Buliangou Coal Mine,the law of failure deformation and pressure distribution of the chock type support are obtained.It is proposed that,when the working face is 8 to 9 meters away from the main removal roadway,the roadway support must be reinforced to ensure the working resistance of the chock type support above 8 800 kN,which could provide theoretical and practical basis for the further optimization of the support parameters.

关 键 词：浅埋煤层 回撤巷道 矿压显现 

分 类 号：TD323[矿业工程—矿井建设]