Numerical Simulation Analysis of Roadway Deformation Characteristic under Deep Mining
Along with most of the mining areas into deep mining in our country,many new problems were encountered in the process of mining,so it is necessary to deeply study the mechanism of deep roadway surrounding rock deformation and failure.The deformation characteristics of roadway are simulated in deep mining by using the FLAC3D,The numerical simulation results show that the roadway surrounding rock with large deformation and high strain-rate is very sensitive to the stress disturbance and environment variation,the deformation of surrounding rock shows the tendency of plastic deformation is increasing.Surrounding rock of roadway is squeezed to the roadway space after roadway surrounding rock deformation and damage.From the perspective of roadway cross section,surrounding rock of no damage appears vertical compressive strain in different degree,roadway sides deformation and failure are the important causes of floor heave of roadway.Along with the increase of roadway buried depth and the surrounding rock pressure,especially dynamic pressure effect,destruction of roadway surrounding rock will increase.
mining engineering stress displacement numerical simulation
Chen Feng Pan Yishan Li Zhonghua
School of Mechanics and Engineering, Liaoning Technical University,Fuxin, 123000, China
国际会议
International Symposium on Rock Mechanics and Mine Dynamic Disaster Prevention(岩石力学与矿井动力灾害防治国际学术研讨会)
辽宁阜新
英文
332-338
2013-07-13（万方平台首次上网日期，不代表论文的发表时间）