论文部分内容阅读
料石支护巷道变形、破坏,甚至发生冒顶是生产矿井经常遇到的问题。不仅翻修施工困难、费用高,同时,它还影响生产运输、通风、排水和安全。现就龙山煤矿-220水平岩石大巷,在翻修时,采取的防止巷道变形破坏的措施作一介绍,供参考。 一、概况 龙山矿现生产能力为30万吨,属于煤与沼气突出矿井,采用一对斜井开拓,底板岩石大巷运输。
Stone supporting tunnel deformation, damage, and even roof fall is often encountered in the production of mine problems. Not only does it have to be overhauled and expensive, but it also affects production, transportation, ventilation, drainage and safety. Now on the level of -220 Longshan Mine rock roadway, in the renovation, taken to prevent deformation and damage of the roadway to make an introduction for reference. First, an overview Longshan mine is the production capacity of 30 million tons, belonging to coal and biogas salient mines, using a pair of inclined shaft to open up, floor rock road transport.