基于水化学特征分析的象山矿井突水水源判别

发布时间：2018-05-26 03:12

本文选题：矿井突水 + 水质分析　；参考：《西安科技大学学报》2017年02期

【摘要】：为能够快速的、准确的识别矿井突水水源,减少煤矿人员伤亡和经济损失,以象山煤矿为例,应用Piper三线图法对井田内3组基岩含水层(奥陶系灰岩含水层、石炭系砂岩/灰岩含水层、二叠系砂岩裂隙含水层)中水质类型进行划分,采用水质分析对比和系统聚类分析相结合的方法,通过对井田内3组基岩含水层中28个水样进行的分析,获得了不同基岩含水层水的化学特征,根据水化学特征,将突水点处的待定水样和3组基岩含水层中的水样对比来判别矿井突水水源,同时提出了利用模糊聚类方法进一步确定矿井突水水源。研究结果表明,石炭系砂岩(灰岩)水和奥陶系岩溶水的水化学特征都与待定水样比较相似,不能轻易识别;聚类分析法能够排除干扰因素并最终精确判别矿井突水水源,即象山煤矿280排矸石门突水的水源为奥灰岩溶水,预测结果与实际相符,表明该方法针对矿井突水的水源判别具有较好的准确性。
[Abstract]:In order to identify mine water inrush water sources quickly and accurately and to reduce casualties and economic losses in coal mine, taking Xiangshan coal mine as an example, three groups of bedrock aquifers (Ordovician limestone aquifer) in the mine field were studied by Piper three-line map method. The water quality types in Carboniferous sandstone / limestone aquifer and Permian sandstone fissure aquifer are divided. Based on the analysis of 28 water samples from 3 groups of bedrock aquifers in the mine field, the chemical characteristics of different bedrock aquifers are obtained. The undetermined water samples at the point of water inrush are compared with the water samples in three groups of bedrock aquifers to distinguish the source of water inrush from the mine, and the fuzzy clustering method is proposed to further determine the source of water inrush from the mine. The results show that the hydrochemical characteristics of Carboniferous sandstone (limestone) water and Ordovician karst water are similar to those of undetermined water samples and can not be easily identified. That is to say, the source of water inrush from the stone gate of Xiangshan coal mine is Ordovician limestone karst water, and the prediction result is consistent with the actual situation, which shows that the method has good accuracy in judging the water source of mine water inrush.
【作者单位】：西安科技大学地质与环境学院;国土资源部煤炭资源勘查与综合利用重点实验室;
【基金】：陕西省教育厅专项项目(16JK1502) 国家自然科学基金(41472234) 西安科技大学青年教师培育基金(201607)
【分类号】：TD745.2

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