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。
Based on the theoretical study of the interaction between the surrounding rock and the bolt and cable,this paper ana-lyzed 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.
作者
孙亮
SUN Liang(Yunxia Construction Engineering Co.,Ltd.,Huozhou Coal Electricity Group,Huozhou 031499,Shanxi,China)
出处
《能源与节能》
2020年第8期20-21,23,共3页
Energy and Energy Conservation
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
theory of the interaction between the surrounding rock and the bolt and cable
FLAC3D numerical simulation
rockburst
anchoring force
