【摘要】 溶矿水是一种与矿山酸性水类似的，会对生态环境产生影响的含矿废水。本研究在对郭达山隧道区域基础地质研究的基础上，结合区域水样、钻孔等资料，利用同位素、离子比例分析等方法，对比了隧道施工前后水文地球化学特征的差异。总结出溶矿水的形成条件及成因机制。得到了以下结论：(1)隧道施工扰动，使原本为还原或弱还原的环境转变为氧化或强氧化环境，为溶矿水的形成提供了条件。(2)对比原生水质，溶矿水具有低pH高TDS的性质，同时含有大量金属离子；(3)郭达山隧道建设过程中可能在经过矿带的D2K254+083-133等6处段位产生溶矿水。更多还原

【Abstract】 Mineral dissolved water is a kind of mineral bearing wastewater similar to mine acid water, which will affect the ecological environment. In this study, based on the regional basic geological study of The Guodashan tunnel, combined with the data of regional water samples and boreholes, the differences of hydrogeochemical characteristics before and after the tunnel construction were compared by means of isotope and ion ratio analysis. The formation conditions and genesis mechanism of dissolved mineral water are summarized. The following conclusions are drawn:(1)the disturbance of tunnel construction makes the original environment of reduction or weak reduction change to oxidation or strong oxidation environment, which provides conditions for the formation of mineral soluble water.(2)Compared with the primary water, the mineral soluble water has the properties of low pH and high TDS, and contains a large number of metal ions.(3)During the construction of The Guodashan tunnel, mineral water may be generated in 6 sections, such as D2 K254+083-133, passing through the ore belt.更多还原