The Numerical Simulation of the Size of Protective Coal Pillar under Railway

摘要：

　　The mining under railway refers to the coal mining activities that must ensure the safety of railway transportation.When mining the coal seam below the rail,we must think about the surface subsidence caused by the mining which should be less than allowable railway deformation.When setting different protective coal pillar sizes in the process of coal seam mining,the sizes will have direct effect on the sizes of the surface subsidence.So,how to ensure the size of coal pillar is the key of mining under railway.Through the FLAC3D-software,we can ensure the influence of different width of coal pillar to the roof subsidence by analyzing the amount of subsidence.Through comparative analysis we concluded reasonable protective coal pillar width,so as to realize the safe railway operation and also achieve good economic benefits.

关键词： mining under railway protective coal pillar FLAC3D-software numerical simulation

作者: Lu Guobin Shang Peng

作者单位: College of Mining Engineering, Liaoning Technical University,Fuxin, 123000, China

会议类型: 国际会议

会议名称: 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)

会议地点: 辽宁阜新

会议语种:英文

页码: 431-435

在线出版日期: 2013-07-13（万方平台首次上网日期，不代表论文的发表时间）