Study On Numerical Simulation of the Arrangement about Mining Roadway with Short Distance
Based on numerical simulation test and test results, the stability of bare roadway with different staggered distance was studied. Conclusions can be drew as follows: Of these ulter-closed mining roadway arrangement modes, global stability of the inboard type roadway is better based on the aspects of degree of damage; Roof subsidence in the inboard-type roadway is smaller, offset at two sides of roadway is larger, its offset direction approaches toward the centre of roadway, and offset increases with staggered distance decreases, the supporting of two sides is the central difficulty for in-board type roadway; The degree of damage in overlapping-type roadway is larger, and roof subsidence of overlapping-type is similar with the inboard-type roadway, while the deformation is large at left side, there are few changes at right side. The destructive deformation is maximum when the staggered distance of outward-type roadway is 2m, and degree of damage is decreases with the increase of staggered distance in outward-type roadway. Overall, roof subsidence in the outward-type roadway is larger, and two sides of it are basically stable.
short distance mining roadway numerical simulation staggered distance
YAN Guochao MA Zhonghui Hu Yaoqing
Taiyuan University of technology, Taiyuan, China Shenhua Croup Corporation Limited, Beijing, China
国际会议
The First International Symposium on Mine Safety Science and Engineering (首届矿山安全科学与工程学术会议)
北京
英文
299-308
2011-10-27（万方平台首次上网日期，不代表论文的发表时间）