煤矿巷道锚杆支护参数选取方式研究

Study on Selection Method of Bolt Support Parameters in Coal Mine Roadway

煤矿开采强度的加大,煤矿开采深度的逐渐增加,巷道所处的应力环境越来越复杂。因此,要通过相应的支护理论机制来确定合理的支护参数。本文对煤矿几种常用的锚杆支护理论机制进行了分析研究,通过计算得出几种支护理论机制下的锚杆支护参数,并通过巷道帮部和顶板变形量大小的对比分析,确定合理的锚杆支护参数,有一定的实践意义。

With the increase of coal mining intensity,the depth of coal mining is gradually increased,and the stress environment in the roadway is becoming more and more complicated.Therefore,reasonable supporting parameters should be determined through corresponding supporting mechanism.In this paper,several kinds of commonly used bolt support theory in coal mine are discussed,and calculates several bolt support parameter under the theoretical mechanism.By the comparison and analysis of roof deformation size,reasonable bolt support parameters are determined,which is of certain practical significance.