简述中厚煤层留窄煤柱沿空掘巷支护技术

The Paper Briefly Introduces the Supporting Technology of the Roadway Along the Goaf with Narrow Coal Pillars in the Medium Thick Coal Seam

煤矿开采作业中,留窄煤柱沿空掘巷是一种常用的技术方案,为了保证施工安全,必须做好支护工作。文章结合工程实例,首先介绍了窄煤柱沿空掘巷的技术特点和宽度设置;然后阐述了支护技术,采用锚杆+锚索支护方案;最后分析了回采时巷道的变形量,评价支护效果,为现场施工管理提供依据,以实现安全生产的目标。

In the coal mining operation,it is a common technical scheme to keep narrow coal pillar along the goaf.In order to ensure the safety of construction,the support work must be done well.Combining with engineering examples,this paper introduces the technical characteristics and width setting of narrow coal pillar along the goaf;Then,the supporting technology is described,and the bolt+anchor cable support scheme is adopted;Finally,the deformation of the roadway in the stope is analyzed,the support effect is evaluated,and the basis for the field construction management is provided to achieve the goal of safety production.