复杂顶板巷道锚杆锚索支护参数优化设计

Optimization design of bolt anchor cable supporting parameters in complex roof roadway

针对复杂顶板巷道支护难、维修费用高等问题,根据原有支护参数的不足,采用FLAC^3D数值模拟软件,建立分析了复杂顶板巷道数值模型,采用单一变量实验方法,分别以顶板锚杆间排距、长度和帮部锚杆间排距、长度为研究对象,分析了顶板和帮部锚杆和锚索合理支护参数。研究为复杂顶板巷道锚杆锚索支护参数设计提供了理论基础。

In view of the difficulty of complicated roof roadway support and high maintenance cost,this paper uses FLAC^3D numerical simulation software to establish and analyze the numerical model of complex roof roadway based on the shortage of original support parameters.Based on the single variable test method,the reasonable supporting parameters of roof and side bolt and anchor cable are analyzed by taking the distance and length of roof bolt and the distance and length of side Bolt respectively as research objects.The research provides a theoretical basis for the design of anchor bolt support parameters in complex roof roadway.