Mechanical Mechanism and Numerical Simulation of Cable Truss on 1 000 m Deep Coal Roadway
In the depth of 1 000 m, a roadway is under the effect of the high in-situ stress, and roadway surrounding rock has the characteristics of large deformation and maintenance difficulties. By analyzing the relationship between three influencing elements of deep roadway stability, the support structure of prestressed cable truss through its anti-arch action should be used to change the surrounding rock stress state. According to ground pressure behavior and failure mechanism of roadway No.2 223, the combined control technology of bolts and prestressed cable truss is proposed, and the supporting parameter optimization and its corresponding support effect are studied by the use of numerical simulation. The results of engineering practice of the cable truss system in Xingdong mine show that the deformation of the deep roadway is very small, and the roof strata separation and the damage of supports and surrounding rocks can be effectively controlled.
anti-arch action mechanical mechanism cable truss deep coal roadway
HAN Hongqiang HE Fulian XIE Shengrong ZHANG Junhui LI Kaiqing
College of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijin Schoolof Resource and Safety Engineering, China University of Mining and Technology (Beijing), Beiji
国际会议
The 2010 International Symposium on Safety Science and Technology(2010 安全科学与技术国际会议)
杭州
英文
2570-2574
2010-10-26（万方平台首次上网日期，不代表论文的发表时间）