Application of Small Coal Pillar Roadway Protection Technology in Thick Coal Seams
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.
small coal pillarthick coal seamtunnel supportconcrete
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