梧桐庄矿导水陷落柱的水源辨识研究

The water source identification of water-conducting collapse column in Wutongzhuang coalmine

岩溶陷落柱作为煤田一种特殊的地质体,不仅影响了煤炭开采过程中巷道布置、巷道稳定性、煤炭开采数量,而且可能引发工作面突水,对井下矿工的生命安全带来严重威胁。本文以梧桐庄煤矿为例,结合矿井水文地质条件及突水水源的水化学特征,建立聚类分析模型、模糊判别模型,对突水水源进行判别,结果显示,成功的预测出陷落柱的存在,并且水质和水温已经成为梧桐庄矿导水陷落柱的辨识依据。这种方法在其它水文地质条件相似的煤矿都起到了很好的借鉴作用。

As a special kind of geologic body in coal field, Karst collapse column affected not only on the roadway arrangement, roadway stability and the quantity of coal mining but also on water inrush of mining face possibly, which seriously threatens the life security of the miners. According to the hydrogeological condition and hydrochemical characteristics of Wutongzhuang coalmine,the cluster analysis model and the fuzzy discriminant model were established for water - bursting source determina- tion. The results show that water quality and water temperature can be regarded as criterion for identification of water - conducting collapse column in Wutongzhuang coalmine and the collapse column is predicted successfully. It is provided reference for other coalmines which hydrogeological conditions were similar to Wutongzhuang coalmine.