唐山矿塌陷区积水与矿井潜在水力联系研究

发布时间：2018-09-13 12:52

【摘要】：为研究唐山矿南湖采煤塌陷区积水、矿井涌水和奥灰水之间的潜在水力联系,从该矿区不同位置采集了水样,应用水化学、同位素法对其进行了分析,并利用水位动态分析方法对比了各含水层水位变化。结果表明:塌陷区积水、矿井涌水和奥灰水的总硬度与离子含量差异较大,其中塌陷区积水总硬度为138.1~304.2 mg/L,而矿井涌水总硬度约为600 mg/L,奥灰水总硬度仅为30.52 mg/L;塌陷区积水砷含量0.002~0.004 mg/L,而矿井涌水与奥灰水砷含量均小于0.001 mg/L;塌陷区积水、矿井涌水和奥灰水的水化学类型明显不同;塌陷区积水、矿井涌水和奥灰水毫克当量百分比、聚类分析谱系、同位素特征均呈现不同规律;塌陷区积水与各含水层的水位动态变化不存在明显相关性;各种分析结果均得出塌陷区积水、矿井涌水和奥灰水之间不存在直接水力联系,南湖湿地公园的建设对唐山矿开采无直接影响。
[Abstract]:In order to study the potential hydraulic relationship between water accumulation, mine water gushing and Ordovician limestone water in Nanhu mining subsidence area of Tangshan Coal Mine, water samples were collected from different locations of the mining area, analyzed by hydrochemistry and isotope method, and the water level changes of each aquifer were compared by dynamic analysis method of water level. The total hardness and ion content of Ordovician limestone water are quite different, of which the total hardness of subsidence area water is 138.1-304.2 mg/L, the total hardness of mine water is about 600 mg/L, the total hardness of Ordovician limestone water is only 30.52 mg/L, the arsenic content of subsidence area water is 0.002-0.004 mg/L, and the arsenic content of mine water and Ordovician limestone water is less than 0.001 mg/L. The hydrochemical types are obviously different from those of Ordovician limestone water; the milligram equivalent percentage of water in subsidence area, mine gushing water and Ordovician limestone water, cluster analysis spectrum and isotope characteristics all show different laws; the water in subsidence area has no obvious correlation with the dynamic changes of water level in each aquifer; all the analysis results show that the subsidence area has water accumulation, mine gushing water and Ordovician limestone water. There is no direct hydraulic connection between ash and water, and the construction of Nanhu Wetland Park has no direct impact on Tangshan mining.
【作者单位】：开滦(集团)有限责任公司唐山矿业分公司;华北科技学院河北省矿井灾害防治重点实验室;
【基金】：国家重大研发计划资助项目(2017YFC0804108) 国家自然科学基金资助项目(51774136) 教育部创新团队资助项目(IRT_17R37) 河北省自然科学基金重点资助项目(D2017508099)
【分类号】：TD745

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