摘要
济三井田,尤其是一采区在开采3煤过程中受到上覆3煤顶板砂岩、侏罗纪红层和第四系下组等含水层的突水威胁。本文基于水化学方法,利用水质测试资料,结合聚类分析法描述了一采区含水层的水化学特征,分析了突水水源。目前,进入一采区工作面的的水源主要为红层水和3煤顶板砂岩水,3煤顶板砂岩水所占比例随着采空面积的增加有增大的趋势。工作面涌水量资料验证了水化学法判定突水水源的可靠性。
During the mining of No. 3 coal seam, the No. 1 mine section of Jining III mine field is threatened by the water-inrush from the overlying aquifers like roof sandstone, red beds of Jurassic period, lower formation of Quaternary system and so on. Based on the hydrochemical methods and the water quality materials, hydrochemical characteristics of the aquifers are described, the sources of water-inrush are determined by cluster analysis methods. Red beds water and roof sandstone water are the main sources that contribute to the water-inrush in the coalface of the No. 1 mine section. With the rising of mined area of the No. 3 coal seam, the proportion of roof sandstone water for the water inrush develops correspondingly. Information from water inrush yield and water table confirms it is an effective way of analyzing the sources of water-inrush.
出处
《中国矿业》
北大核心
2005年第8期66-69,共4页
China Mining Magazine
关键词
水化学
突水水源
聚类分析
济三井田
Hydrochemistry The sources of water-inrush Cluster analysis Jining Ⅲ mine field
