倾斜地层孤岛工作面巷道管索组合结构支护技术研究  

Research on Pipe and Cable Combination Structure Support Technology for Roadway in Inclined Stratum Island Working Face

作　　者：王志刚 贾湛永 刘伟俊 WANG Zhigang;JIA Zhanyong;LIU Weijun(Pangpangta Coal Mine,Huozhou Coal and Electricity Group Lvlin Energy and Chemical Company Limited,Lvliang 033200,China;School of Mechanics and Civil Engineering,China University of Mining and Technology-Beijing,Beijing 100083,China)

机构地区：[1]霍州煤电集团吕临能化有限公司庞庞塔煤矿,山西吕梁033200 [2]中国矿业大学(北京)力学与土木工程学院,北京100083

出　　处：《煤炭技术》2024年第8期28-32,共5页Coal Technology

基　　金：国家自然科学基金项目(52274148)。

摘　　要：针对倾斜地层孤岛工作面支护难题,以庞庞塔煤矿输送机大巷为工程背景,采用数值模拟方法研究倾斜地层孤岛工作面的应力分布情况,发现垂直应力和水平应力呈双峰分布。巷道在孤岛工作面、巷道形状等因素的影响下围岩呈非均匀变形。对C形管抵抗的剪切荷载进行计算后,针对原支护方案中的不足,提出了管索组合结构的支护补强方案。研究结果表明,采用管索组合结构支护技术后,巷道变形得到了有效控制。In response to the difficulty of supporting inclined formation isolated island working faces,take the conveyor roadway of Pangpangta coal mine as the engineering background,and use numerical simulation methods to study the stress distribution of inclined formation isolated island working faces.It is found that the vertical and horizontal stresses exhibit a bimodal distribution.The surrounding rock of the roadway exhibits non-uniform deformation under the influence of factors such as isolated working face and roadway shape.After calculating the shear load resistance of the C-shaped pipe,a support reinforcement plan for the pipe cable composite structure was proposed to address the shortcomings of the original support plan.The research results indicate that the deformation of the roadway has been effectively controlled after the use of pipe and cable combination structure support technology.

关 键 词：孤岛工作面 管索组合结构 倾斜地层 数值模拟 

分 类 号：TD353[矿业工程—矿井建设]