锚杆支护过程中不同因素对支护效果的影响研究

Different Influencingg Factors on the Support Effect of Anchor Support Process

锚杆支护在煤矿开采中具有广泛的应用,为研究不同因素对锚杆支护效果的作用,采用FLAC桩单元仿真分析的形式对锚杆的拉拔力变化进行分析。建立了锚杆支护的分析模型,并验证了计算结果的准确性,对锚固剂的黏聚力、内摩擦角作用进行分析,从而得到黏聚力、内摩擦角对锚杆支护效果的影响作用,为锚杆支护的设计使用提供指导,保证煤矿的支护稳定性。

Anchor support has a wide range of applications in coal mining,in order to study the role of different influencing factors on the effect of anchor support,the change of pull-out force of anchor is analysed in the form of FLAC pile unit simulation analysis.The analysis model of anchor support was established,and the accuracy of the calculation results was verified.The role of cohesive force and internal friction angle of anchoring agent was analysed,so as to get the role of cohesive force and internal friction angle on the effect of anchor support,which can provide guidance for the design and use of anchor support to ensure the stability of the support in coal mines.