摘要
定量分析废弃煤矿积水对防止废弃煤矿积水对相邻煤矿造成危害具有重要意义。本文以闭坑矿井和邻近矿井九里山矿为研究对象,利用回采空间法计算了闭坑矿井27采区的积水量,得到闭坑后采空区积水量为235572.555m^2,并利用数理统计方法对闭坑矿井的水位和水量变化进行分析,发现矿井水位回升速度与水量相关;并对邻近14142工作面的防隔水煤柱进行安全评价,结合两种计算方法对需留设的隔水煤柱宽度进行计算,判断出隔水目前煤柱可以抵挡住27采区的积水水压。
Quantitative analysis of the accumulated water in the abandoned coal mine is of great significance to prevent the harmfulness of the abandoned coal mine water to the adjacent coal mines.In this paper,the closed pit mine and the adjacent mine Jiulishan Mine are used as research objects.The water volume of the 27 closed pit mines is calculated by using the mining space method.Total water-filling volume in goaf after coal mine being closed is 235572.555m2.The mathematical level and statistical methods are used to analyze the water level and water volume change of the closed pit mine.The water level recovery speed is related to the amount of water;the safety evaluation of the water-proof coal pillars adjacent to the 14142 working face is performed,and it is judged that the current coal pillars can withstand the water pressure in the 27 mining area.
出处
《科学技术创新》
2020年第18期154-156,共3页
Scientific and Technological Innovation
关键词
废弃矿井
积水量
水位回升
防隔水煤柱
积水水压
abandoned mines
water accumulation
water recovery
waterproof coal pillar
water pressure
