探析工作面采高对侧向顶板巷道的变形影响

Analysis of Working Face Mining Height Influence on Deformation of Lateral Roof Roadway

对于现代矿井而言,巷道不但能帮助实现安全和均衡化的生产,还能很好的提升作业效率。但在诸多因素的影响下,巷道会发生变形,进而降低了作业效率,给煤矿生产带来潜在的不安全性因素。本文重点关注工作面采高这一影响顶板巷道变形的关键性因素,分析研究得出:在采高为1.8m、2.8m和3.8m时,采高对巷道变形不会产生很大的影响,即便采高增加,影响变化也不大,基本仍处于可控范围。但当采高到4.8m时,采高对巷道变形会产生很大的影响,而伴随采高再次持续上升到5.8m时,对巷道变形产生的影响也趋于平缓化。本研究的结论是为了保证巷道变形处于安全可控的范围,工作面的采高设定必须要考虑关注其临界值4.8m,这一临界值的控制把握有助于资源开采率的提升和开采安全目标的实现。

Roadway deformation will reduce operating efficiency and bring potential insecurity factors for coal mine production.The paper focuses on working face mining height,which is the key factor to influence roadway deformation of roof.Conclusions have been drown from analysis and study：in order to ensure roadway deformation within safe and controllable range,the setting of working face mining height must consider concerning its critical value of 4.8m,whose controlling is helpful to the promotion of resource exploitation rate and the achievement of safety mining.