Orthogonal numerical analysis of factors of surrounding rock deformation of deep roadway under dynamic pressure
With an increase in mining depth,the support of roadway becomes increasingly difficult,and the rock strata control of deep roadway under dynamic pressure is more difficult than that of the average deep roadway.Based on the conditions of 2161(1) working face in Pansan Mine,Huainan,the sensitivity of floor-to-roof convergence and rib-to-rib convergence to width,height,mining depth,side-stress coefficient,convergent stress coefficient affected by mining and support resistance by means of orthogonal numerical analysis,variance analysis,and range analysis is researched,and the functional equation between salient single factor and floor-to-roof convergence,rib-to-rib convergence is educed through multiple linear regression.The result indicates that with the two most important factors of surrounding rock deformation are mining depth and side-stress coefficient,and it is difficult to control rock strata deformation of deep roadway under dynamic pressure only by improving support resistance.So it is necessary to research on the theories and techniques of support of deep roadway under dynamic pressure further.
Deep roadway under dynamic pressure Surrounding rock deformation Orthogonal numerical analysis
Hua Xinzhu Li Yingfu
Department of Resources Exploration and Management Engineering,Anhui University of Science and Technology,Huainan,Anhui,232001,China
国际会议
The 2007 International Conference on Mine Hazards Prevention and Control(2007矿山灾害预防与控制国际学术会议)
青岛
英文
318-323
2007-10-17（万方平台首次上网日期，不代表论文的发表时间）