小煤柱护巷技术在厚煤层中的应用
Application of Small Coal Pillar Roadway Protection Technology in Thick Coal Seams
李志岗1
作者信息
- 1. 汾西矿业集团曙光煤矿, 山西 孝义 032300
- 折叠
摘要
煤矿开采过程中,小煤柱存留的目的就是隔离巷道和采空区,避免采空区内存在的蔓延和危险气体会蔓延到巷道,影响后续开采作业,引发事故.本文以小煤柱护巷机理为切入点,阐述了控制沿空掘巷围岩思路,最终依据工程实例,针对小煤柱护巷技术在厚煤层中的具体应用进行探讨.
Abstract
In the process of coal mining,the purpose of retaining small coal pillars is to isolate the roadway and goaf,to avoid the spread of dangerous gases and their spread to the roadway,which will affect subsequent mining operations and cause accidents.This article takes the mechanism of small coal pillar roadway protection as the starting point,elaborates on the idea of controlling the surrounding rock of goaf excavation,and finally explores the specific application of small coal pillar roadway protection technology in thick coal seams based on engineering examples.
关键词
小煤柱/厚煤层/巷道支护/混凝土Key words
small coal pillar/thick coal seam/tunnel support/concrete引用本文复制引用
出版年
2024
NETL
NSTL
万方数据