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在布置高位掩护巷道进行卸压瓦斯抽采时,需考虑抽采巷道掘进对生产巷道的影响,即交叉巷道之间的影响关系,使巷道的布置能够尽量减少应力集中并能进行良好的支护。对目前突出矿井单一煤层普遍采用的高位巷道空间布置、应力分布及顶底板位移情况进行了分析,得出了高位巷道布置的有效垂距和平距。
When disposing high protective roadway for pressure relief gas drainage, it is necessary to consider the influence of extraction roadway excavation on the production laneway, that is, the influence relationship between crossing roadway, so that the roadway arrangement can minimize the stress concentration and can carry out good support . This paper analyzes the spatial distribution, stress distribution and top and bottom displacement of high altitude roadway, which are commonly used in the single mine of coal mines, and obtains the effective vertical distance and horizontal distance of high roadway layout.