软煤沿空掘巷窄煤柱变形机理数值模拟研究  

Research on Numerical Simulation of Deformation Mechanism with Gob-side Entry Driving in Narrow Coal Pillar

作　　者：杨书召[1,2] 刘星魁[1,2] 谢雷[2] 

机构地区：[1]河南工程学院安全工程系,郑州451191 [2]安徽理工大学能源与安全学院,安徽淮南232001

出　　处：《煤炭技术》2015年第3期47-49,共3页Coal Technology

基　　金：河南工程学院科技创新团队建设经费资助(CXTD2014002)

摘　　要：以淮南矿业集团谢一矿C13煤层工作面为实验原型,采用ANSYS软件中"死活"单元技术、材料非线性问题的分析方法,对沿空掘巷过程中窄煤柱的变形破坏机理进行了模拟分析。在采动影响下不同宽度的窄煤柱应力分布对巷道的影响差别较大。综合分析得出在软煤层回采过程中,沿空掘巷煤柱的宽度布置为5~7 m最合理。Taking the C13 coal seam working face of Xieyi coal mine in Huainan mining group as research example, the deformation mechanism of gob-side coal roadway is simulated by analysis method of 'anyway' unit and nonlinear materials technology in ANSYS software. It can be obtained from the computed result that the effect of stress distribution on roadway has a great difference with different pillar width under mining activity. Thus the gob-side pillar is most reasonable to be set for 5~7 m within the mining process for soft coal seam from comprehensive analysis results.

关 键 词：软煤层 沿空掘巷 窄煤柱 数值模拟 

分 类 号：TD353[矿业工程—矿井建设]