院报 ›› 2016, Vol. 33 ›› Issue (1): 111-114.DOI: 10.11988/ckyyb.20150829

• 岩土工程 • 上一篇    下一篇

高应力软岩破碎巷道围岩变形控制研究

付 强1a,1b,赵玉成1a,1b,徐 慧1a,1b,2,何东旭1a,1b,甄亚斌1a,1b   

  1. 1.中国矿业大学 a.深部岩土力学与地下工程国家重点试验室;
    b.力学与建筑工程学院,江苏 徐州 221116;
    2.菏泽学院 资源与环境系,山东 菏泽 274015
  • 收稿日期:2015-09-30 出版日期:2016-01-20 发布日期:2016-01-20
  • 作者简介:付 强(1988-),男,山东烟台人,助理工程师,硕士,研究方向为岩石力学,(电话)15951463632(电子信箱)cumtfuqiang@163.com。
  • 基金资助:
    国家自然科学基金重点项目(50834004);山东省自然科学基金项目(ZR2011AL014)

Research on Deformation Control of Soft Crushed RockRoadway with High Stress

FU Qiang1,2,ZHAO Yu-cheng1,2,XU Hui1,2,3,HE Dong-xu1,2,ZHEN Ya-bin1,2   

  1. 1.State Key Laboratory for Geomechanics & Deep Underground Engineering,China University of Mining & Technology,Xuzhou 221116,China;
    2.School of Mechanics and Civil Engineering, China University of Mining & Technology,Xuzhou 221116,China;
    3.Department of Resources and Environment, Heze University,Heze 274015,China
  • Received:2015-09-30 Online:2016-01-20 Published:2016-01-20

摘要: 由于岩石在高矿压条件下具有较大塑性变形,深部软岩巷道变形与破坏特征较为复杂,巷道的稳定性控制变得非常棘手,因此选择合适的巷道支护方法尤其重要。以具有上述地质赋存条件的邢村煤矿为工程背景,根据支护理论分析与数值分析,基于FLAC3D有限差分软件,系统研究了支护参数对于围岩变形、应力和塑性区分布的影响规律。结果表明对于软岩破碎巷道,采用复合支护方法比传统单一支护,具有显著支护效果,更能有效控制巷道变形,从而为控制软岩破碎巷道变形提供一定的研究基础。

关键词: 软岩破碎巷道, 高应力复合支护, 围岩变形, 塑性区, 邢村煤矿

Abstract: Due to big plastic deformation of rock under high geostress, roadway deformation and failure characteristics of deep soft rock roadway are complex, and stability control of the roadway becomes very difficult. In light of this, it is important to choose proper support method for the roadway. Xingcun coal mine, with similar geological storage, is taken as research background. According to theoretical analysis and numerical analysis of support, based on the finite difference software FLAC3D, we systematically study the influence of support parameters on rock deformation, stress distribution and plastic zone distribution. The results show that, as for the soft crushed rock roadway, composite support method is superior to traditional method with single support .We can effectively control roadway deformation and obtain obvious support effect by using the composite method. Finally, the research can be reference for deformation control of soft crushed rock roadway in similar projects.

Key words: soft crushing rock roadway, composite support at high stress, surrounding rock deformation, plastic zone, Xingcun coal mine

中图分类号: 

Baidu
map