大倾角煤层易滑移片帮巷道稳定性控制技术研究  

Research on stability control technology of roadways for slippy spalling in large dip coal seams

作　　者：吕存书 王震 史东东 程永刚 廖永红 雍明超 赵小虎 LYU Cunshu;WANG Zhen;SHI Dongdong;CHENG Yonggang;LIAO Yonghong;YONG Mingchao;ZHAO Xiaohu(Hoboksar Mongol Autonomous County Shajihai Coal Industry Co.,Ltd.,Tacheng 832100,China;Xinjiang Coal Science Research Institute,Urumqi 830091,China;Xinjiang Baicheng Yinxi Tiereke Coal Industry Co.,Ltd.,Aksu 843000,China)

机构地区：[1]和布克赛尔蒙古自治县沙吉海煤业有限责任公司,新疆塔城832100 [2]新疆维吾尔自治区煤炭科学研究所,新疆乌鲁木齐830091 [3]新疆拜城音西铁热克煤业有限公司,新疆阿克苏843000

出　　处：《中国矿业》2023年第S02期144-149,共6页China Mining Magazine

基　　金：新疆维吾尔自治区自然科学基金面上项目资助(编号:2022D01B116);新疆维吾尔自治区公益性科研院所基本科研业务经费资助(编号:KY2023104)。

摘　　要：为解决艾维尔沟煤矿大倾角煤层9#行人平巷易滑移片帮的难题,综合应用地质条件调查、理论分析、数值计算、物化分析、现场测试等手段和方法,对巷道滑移片帮机理及对策进行研究。研究结果表明:9#行人平巷顶板岩层在裂隙水的影响下,岩层结构面严重泥化,沿煤层倾向发生错动滑移,导致巷道高帮煤体失去顶板的约束力,在中上部形成深度约8m的拉剪破坏三角塑性区,造成煤体滑移片帮,进而导致巷道整体失稳。控制9#行人平巷易滑移片帮的关键是“强顶护帮”及非对称支护,据此提出了9#行人平巷“顶板注浆锚杆(索)+巷帮锚索桁架梁组合支护”的围岩控制方案,现场实践效果良好。To solve the problem of slippy spalling in the 9#pedestrian roadway of Aiweiergou Coal Mine with large dip coal seams,a comprehensive application of geological condition investigation,theoretical analysis,numerical calculation,physicochemical analysis,on-site testing and other means and methods are used to study the mechanism and countermeasures of slippy spalling mechanism of roadway.The results show that under the influence of fissure water,the roof rock layer of 9#pedestrian roadway undergoes severe argillization and sliding along the dip of coal seam,causing the high wall coal body in the roadway to lose the constraint of the roof and forming a triangular plastic zone with a depth of about 8 meters in the middle and upper parts,resulting in the sliding slope of the coal body and causing the overall instability of the roadway.The key to control the sliding slope of 9#pedestrian roadway is“strong roof support”and asymmetric support.Based on this,a surrounding rock control plan of“roof grouting anchor rod(cable)+roadway side anchor cable truss beam combination support”for 9#pedestrian roadway is proposed,and the on-site practice results are good.

关 键 词：大倾角煤层 易泥化顶板 滑移片帮机理 锚索梁桁架 围岩控制 

分 类 号：TD353[矿业工程—矿井建设]