李雅庄煤矿巷道底鼓机理探讨  

Discussion on Roadway Floor Heave Mechanism in Liyazhuang Colliery

作　　者：孟超 Meng Chao(Liyazhuang Colliery,Huozhou Coal&Electricity Group Co.,Ltd.,Huozhou,Shanxi 031412)

机构地区：[1]霍州煤电集团有限责任公司李雅庄煤矿,山西霍州031412

出　　处：《江西煤炭科技》2023年第3期8-10,共3页Jiangxi Coal Science & Technology

摘　　要：以李雅庄煤矿2-6182回风顺槽巷道大变形且发生明显底鼓为工程背景,通过顶底板岩石物理力学参数测试和巷道底鼓机理分析,采用工程实践的方法对该弱胶结底板岩层的底鼓机理和巷道大变形模型进行研究,最终确定采用“反底拱+底板锚索”辅以锚杆锚索联合支护的模式可以获得较好的支护效果。在2-6182回风顺槽进行了工程参数验证,监测结果显示巷道两帮最大移近量仅为50 mm,达到巷道使用要求。Based on the engineering background of large deformation and obvious floor heave occurring in 2-6182 return air roadway of Liyazhuang Colliery,the paper makes a study on the floor heave mechanism and large deformation model of the weakly consolidated floor strata through engineering practice by testing the physical and mechanical parameters of roof and floor rock and analyzing the floor heave mechanism of roadway and presents the combined support mode of"inverted arch and bottom anchor cable"supplemented with bolt and anchor cable,whose monitoring results show that the maximum displacement of the two sides of the roadway is only 50 mm,meeting the roadway application requirements.

关 键 词：巷道变形 底鼓 反底拱 锚杆支护 

分 类 号：TD353[矿业工程—矿井建设] TD322.1