采动影响下破碎围岩巷道控制机理及支护优化  

Control mechanism and support optimization of roadway in fractured surrounding rock under the influence of mining activity

作　　者：陈诚[1] 刘纪良[1] 卢淑涛 赵明 CHEN Cheng;LIU Jiliang;LU Shutao;ZHAO Ming(Zhurianzhuang Coal Mine Production Technology Department,Huaibei Mining Com pany Limited,Huaibei 234111,China;College of Civil Engineering and Architecture,Anhui University of Science and Technology,Huainan 232001,China;State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines,Anhui University of Science and Technology,Huainan 232001,China)

机构地区：[1]淮北矿业股份有限公司朱仙庄煤矿生产技术部,安徽淮北234111 [2]安徽理工大学土木建筑学院,安徽淮南232001 [3]安徽理工大学深部煤矿采动响应与灾害防控国家重点实验室,安徽淮南232001

出　　处：《建井技术》2025年第2期7-12,共6页Mine Construction Technology

基　　金：安徽省教育厅自然科学重点项目(KJ2022A0105);淮北矿业股份有限公司科技项目(2014196)。

摘　　要：针对朱仙庄煤矿Ⅱ5采区行人上山巷道受采动影响导致围岩破碎严重,以及原有支护方案承载力不足发生严重变形等问题,采用破碎围岩控制机理提出一种联合控制优化方案,包括注浆锚杆、高压注浆锚索、钢筋网、喷浆和注浆等措施,提高了巷道围岩黏聚力和承载能力,限制了塑性区域发展。结合现场工业试验验证,结果表明:75 d后围岩变形达到平稳,新支护方案有效地控制住了巷道变形,显著降低变形速度,并在后期实现稳定。In view of the serious breakage of surrounding rock caused by mining in the pedestrian uphill roadway of II 5 mining area of Zhuxianzhuang Coal Mine and the serious deformation caused by the insufficient bearing capacity of the original support scheme,a joint control optimization scheme is proposed by using the control mechanism of broken surrounding rock,including grouting bolt,highpressure grouting anchor cable,steel mesh,shotcrete and grouting,which improves the cohesion and bearing capacity of roadway surrounding rock and limits the development of plastic area.Combined with field industrial test,the results show that the deformation of surrounding rock is stable after 75 days.The new support scheme effectively controls the deformation of roadway,significantly reduces the deformation speed,and achieves stability in the later period.

关 键 词：采动影响 破碎围岩 巷道支护 黏聚力 承载能力 

分 类 号：TD353[矿业工程—矿井建设]