下伏高应力巷道支护体系受力分析探究
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摘要
本文针对晋煤集团凤凰山矿154313工作面盘区应力分布情况,通过围岩变形机理分析、现场实测数据分析、数值模拟及现场实施验证等方法,得出了工作面支架额定阻力与顶板来压的对应关系,为今后工作面掘进巷道的支护和回采支架的选型及步距控制提供了参考依据。
In view of the distribution panel of the 154313 face of Fenghuangshan Coal Mine, Jincheng Coal Group,this paper employed such methods as the surrounding rock deformation mechanism analysis, field measurement data analysis, numerical simulation and field implementation validation, and found out the corresponding relationship between roof weighting and the working face support resistance rating, providing referential basis for the selection and step controlling support and the roadway drivage working for the future and stoping stents.
In view of the distribution panel of the 154313 face of Fenghuangshan Coal Mine, Jincheng Coal Group,this paper employed such methods as the surrounding rock deformation mechanism analysis, field measurement data analysis, numerical simulation and field implementation validation, and found out the corresponding relationship between roof weighting and the working face support resistance rating, providing referential basis for the selection and step controlling support and the roadway drivage working for the future and stoping stents.
引文
[1]张国华,梁冰,张宏伟,等.回采巷道顶板离层分析与锚杆组合支护技术参数确定[J].重庆大学学报,2010,33(07):135-140.
[2]李小军,袁瑞甫,赵兴东.矩形巷道围岩破坏规律数值模拟[J].矿业工程,2008,6(02):18-20.
[3]贾宝新.采动影响下沿空巷道变形破坏与锚杆支护[J].辽宁工程技术大学学报(自然科学版),2011,30(06):810-813.
[2]李小军,袁瑞甫,赵兴东.矩形巷道围岩破坏规律数值模拟[J].矿业工程,2008,6(02):18-20.
[3]贾宝新.采动影响下沿空巷道变形破坏与锚杆支护[J].辽宁工程技术大学学报(自然科学版),2011,30(06):810-813.