Research of Rock Mechanical Mechanics in Steeply Dipping Seam Mining
In steeply dipping working face rock movement,failure characteristics and distribution law of abutment pressure obviously affects seam mining.This paper takes the long wall for large inclined angle fully mechanized face of coal mine as the project background.The theoretical analysis and numerical simulation are adopted to study the break mechanism of the rock layer in steeply dipping seam mining; Through the numerical simulation results shows that the basic features are obtained,which are the biggest stress coefficient,abutment pressure of plastic area,roof weighting step,and convergence between roof and floor in working face.Based on the pressure appearance of the steeply dipping seam mining,control technology is given for the working face support stability,the work equipment prevent tumble and glide,and adjacent rock in the period of pressure.The study has a practice meaning in reducing coal mining accidents and improving the safety in steeply dipping seam mining.
steeply dipping seam mechanics stress-strain rock control
Liu Jun Yue Gao-wei
School of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, Henan, China
国际会议
辽宁葫芦岛
英文
342-346
2012-08-07（万方平台首次上网日期，不代表论文的发表时间）