Tangshan Mining Branch Company, Kailuan Group Co., Ltd. Hebei State Key Laboratory of Mine Disaster
Prevention, North China Institute of Science and Technology

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。

In order to study the potential hydraulic connection between Nanhu coal mining subsidence pit water, mine water and Ordovician limestone water in Tang shan, water chemistry and isotope method were used to analyze the water samples that were collected at different locations in the research area, the water level chang es of each aquifer were contrasted by the method of water level dynamic analysis.The results showed that: the total hardness and ion content of collapse pit water, min e water and Ordovician limestone water were different greatly, the total hardness of collapse pit water was between 138.1 and 304.2 mg/L, the total hardness of mine W ater was about 600 mg/L, and Ordovician limestone water total hardness was only 30.52 mg/L; arsenic content in collapse pit water was between 0.002 and 0.004 mg/L, but the mine water and Ordovician limestone water were less than 0.001 mg/L; the hydrochemical types of collapse pit water, mine water and Ordovician limestone wate 「was different obviously; different laws were showed for milligram ( mg) equivalent percentage line chart, clustering analysis pedigree chart and Isotopic characteristics of collapse pit water, mine water and Ordovician limestone water; there was no obvious correlation of water level dynamic change between subsidence pit water and ea ch aquifer in Tangshan mining area.lt come to the conclusion that there is no direct hydraulic connection between collapse pit water, mine water and Ordovician limesto ne water. The construction of Nanhu Wetland Park has no direct influence on the exploitation of Tangshan Mine.