• 中文核心期刊
  • 中国科技核心期刊
  • RCCSE中国核心学术期刊

巷道断面对东胜矿区侏罗纪4#煤层掘进巷道稳定性的影响

庞振忠, 张新国, 李飞, 刘占新

庞振忠, 张新国, 李飞, 刘占新. 巷道断面对东胜矿区侏罗纪4#煤层掘进巷道稳定性的影响[J]. 煤矿安全, 2017, 48(8): 207-210.
引用本文: 庞振忠, 张新国, 李飞, 刘占新. 巷道断面对东胜矿区侏罗纪4#煤层掘进巷道稳定性的影响[J]. 煤矿安全, 2017, 48(8): 207-210.
PANG Zhenzhong, ZHANG Xinguo, LI Fei, LIU Zhanxin. Influence of Tunnel Cross-section on Stability of Jurassic 4# Coal Seam Excavation Roadway in Dongsheng Mine[J]. Safety in Coal Mines, 2017, 48(8): 207-210.
Citation: PANG Zhenzhong, ZHANG Xinguo, LI Fei, LIU Zhanxin. Influence of Tunnel Cross-section on Stability of Jurassic 4# Coal Seam Excavation Roadway in Dongsheng Mine[J]. Safety in Coal Mines, 2017, 48(8): 207-210.

巷道断面对东胜矿区侏罗纪4#煤层掘进巷道稳定性的影响

Influence of Tunnel Cross-section on Stability of Jurassic 4# Coal Seam Excavation Roadway in Dongsheng Mine

  • 摘要: 针对东胜矿区侏罗纪4#煤层掘进巷道在普通锚网索支护条件下需留顶、底煤以维护巷道稳定性等难题,以双欣煤矿414108工作面辅助运输巷为工程背景,综合运用理论分析、数值模拟及现场实测等方法,研究分析原断面方案下巷道围岩失稳冒落原因,确定了以断面形式计算合理的断面参数来解决掘进巷道冒落问题。结果表明:不同巷道断面的变形情况均表现为极速变化-缓慢变化-趋于平稳的变化过程,直墙半圆拱形巷道较原矩形巷道围岩变形量减小,在冒落区将巷道断面改为拱形断面可提高围岩的长期稳定性。
    Abstract: In view of the problem that the tunneling roadway in Dongsheng Mine Jurassic 4# coal seam needs to remain top and bottom coal to maintain stability of roadway under ordinary anchor net supporting condition, taking subsidiary transport gateway in Shuangxin Coal Mine 414108 working face as the engineering background, with the integrated use of theoretical analysis, numerical simulation and field measurement method, we study and analyze the instability causes of roadway surrounding rock under the original tunnel cross-section, and determine that using section form to calculate reasonable section parameters to solve the problem of tunneling roadway caving. The results show that the deformation conditions of different sections present the change process of fast change - slow change - stable change; the deformation of straight wall semicircle arch is samaller than that of original rectangular roadway; changing roadway cross section to arch section in the caving zone can improve the long-term stability of surrounding rock.
  • [1] 何满潮,袁越,王晓雷,等.新疆中生代复合型软岩大变形控制技术及其应用[J].岩石力学与工程学报,2013,32(3):434-441.
    [2] 孟庆斌,韩立军,乔卫国,等.深部高应力软岩巷道变形破坏特征研究[J].煤炭学报,2012,29(4):482-486.
    [3] 蔡洪都,刘刚,龙景奎,等.浅埋薄基岩三软煤巷支护方式数值模拟[J].煤矿安全,2009(5):46-50.
    [4] 李桂臣,张农.高地应力巷道断面形状优化数值模拟研究[J].中国矿业大学学报,2010,39(5):652-658.
    [5] 田骥,宋宏伟.圆角矩形巷道的稳定性研究[J].煤矿安全,2014,45(6):26-28.
    [6] 岳高伟,袁军伟,冯帆.梯形断面掘进巷道围岩稳定性数值模拟[J].煤矿安全,2012(11):45-47.
    [7] 李召鑫.基于复变函数法的“三软”煤层回采巷道断面设计[J].煤矿安全,2015,46(4):203-205.
    [8] 汪伟,韩磊,邵康,等.基于UDEC数值模拟的巷道断面形状优化设计[J].煤炭工程,2007(12):54-55.
    [9] 马兴华,赵长红.圆弧拱断面在三软煤层中的应用[J].煤矿安全,2012,43(12):204-206.
    [10] 孙广义,陈刚,于蒲喜.巷道断面优化设计与应用研究[J].煤炭工程2008(9):57-58.
    [11] 王致远,王立志.任意三心拱和圆弧拱断面积的计算[J].冶金矿山设计与建设,1995(5):25-26.
计量
  • 文章访问数:  152
  • HTML全文浏览量:  0
  • PDF下载量:  0
  • 被引次数: 0
出版历程
  • 发布日期:  2017-08-19

目录

    /

    返回文章
    返回