202008

厚煤层围岩巷道支护研究
发布人:网站管理员 发布时间:2020/8/20 点击次数:85次
  

厚煤层围岩巷道支护研究
孙亮
(霍州煤电集团云厦建筑工程有限公司,山西 霍州 031499)
摘要: 通过对巷道围岩与锚杆锚索相互作用的理论研究,详细分析了锚索锚杆支护下巷道变形量的控制,同时针对
厚煤层开采中冲击地压显现等问题,利用FLAC3D 数值模拟软件对支护方案进行了优化。结果表明,改进后的“锚杆+
钢带+锚索”的支护方案能有效提高围岩的锚固力,使巷道围岩更加稳定,为矿井的生产提供便利。
关键词: 围岩与锚杆锚索相互作用理论;FLAC3D 数值模拟;冲击地压;锚固力
中图分类号: TD353     文献标识码: A     文章编号: 2095-0802-(2020)08-0020-02
Research on Surrounding Rock Roadway Support in Thick Coal Seams
SUN Liang
(Yunxia Construction Engineering Co., Ltd., Huozhou Coal Electricity Group, Huozhou 031499, Shanxi, China)
Abstract: Based on the theoretical study of the interaction between the surrounding rock and the bolt and cable, this paper analyzed
the control of the roadway deformation under the support of cable and bolt in detail, and optimized the support scheme by
using FLAC3D numerical simulation software to solve the problems such as the appearance of the rockburst in the mining of thick
coal seams. The results show that the improved "bolt + steel belt + anchor cable" support scheme can effectively improve the
anchoring force of the surrounding rock, make the surrounding rock of the roadway more stable, and provide convenience for the
production of the mine.

 Key words: theory of the interaction between the surrounding rock and the bolt and cable; FLAC3D numerical simulation;
rockburst; anchoring force