Research on Bolt Support Technology in Soft Coal Seam Roadway  

作　　者：Xinyuan Ma Wenzhong Zhou Shuai Zhao Mingxuan Jiang Zihao Yu Xinyuan Ma;Wenzhong Zhou;Shuai Zhao;Mingxuan Jiang;Zihao Yu(School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo, China;Jinneng Holding Equipment Manufacturing Group, Jincheng, China;College of Bioscience and Engineering, Hebei University of Economics and Business, Shijiazhuang, China)

机构地区：[1]School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo, China [2]Jinneng Holding Equipment Manufacturing Group, Jincheng, China [3]College of Bioscience and Engineering, Hebei University of Economics and Business, Shijiazhuang, China

出　　处：《World Journal of Engineering and Technology》2023年第2期370-380,共11页世界工程和技术（英文）

摘　　要：In order to solve the problem of surrounding rock control in soft coal seam roadway, taking the centralized return airway of No. 2 coal seam in Liangdu Coal Industry as the research background, the mechanical conditions of roadway surrounding rock were analyzed by means of field investigation, rock mechanics experiment and numerical simulation. The design principles of roadway support in soft coal seam were put forward: high strength anchor cable support, high preload support and high stiffness support. The bearing capacity of surrounding rock was strengthened by anchor cable support, and the deformation and failure of surrounding rock were effectively controlled. Through the numerical simulation method, the deformation and plastic failure range of roadwaysunder different support schemes are compared and analyzed. The support scheme of centralized transportation roadway is studied and determined, and the field test is carried out, which effectively controls the deformation of surrounding rock of roadway in weak coal seam.In order to solve the problem of surrounding rock control in soft coal seam roadway, taking the centralized return airway of No. 2 coal seam in Liangdu Coal Industry as the research background, the mechanical conditions of roadway surrounding rock were analyzed by means of field investigation, rock mechanics experiment and numerical simulation. The design principles of roadway support in soft coal seam were put forward: high strength anchor cable support, high preload support and high stiffness support. The bearing capacity of surrounding rock was strengthened by anchor cable support, and the deformation and failure of surrounding rock were effectively controlled. Through the numerical simulation method, the deformation and plastic failure range of roadwaysunder different support schemes are compared and analyzed. The support scheme of centralized transportation roadway is studied and determined, and the field test is carried out, which effectively controls the deformation of surrounding rock of roadway in weak coal seam.

关 键 词：Roadway Support High Preload High Strength Bolt Support Support Design 

分 类 号：TD3[矿业工程—矿井建设]