为了解转龙湾煤矿公涅尔盖沟地表水与地下水的水化学特征，综合运用水化学与统计分析等方法开展了相关研究，并对地表水与地下水的水力联系进行了探讨。结果表明：公涅尔盖沟地表水和地下水中阴、阳离子的质量浓度具有ρ(Na⁺+K⁺)>ρ(Ca²⁺)>ρ(Mg²⁺)和ρ(HCO₃^-)>ρ(SO₄^2-)>ρ(Cl^-)>ρ(NO₃^-)的特点，水化学类型以HCO₃-Ca和Cl-Na型为主，地表水中的主要离子的质量浓度均值均高于地下水；地表水与地下水的水化学特征主要受岩石风化、阳离子交换作用影响，主要离子来源于碳酸盐岩和硅酸盐岩矿物的溶解；地表水与地下水存在着一定的水力联系，但Ⅱ-3煤顶板含水层与第四系地下水和地表水之间的水力联系相对较弱。当工作面开采至公涅尔盖沟谷底或积水区时，须采取相应防治水措施。

To understand the hydrochemical characteristics of surface water and groundwater in the Gongniergai gully of Zhuanlongwan Coal Mine, a comprehensive study associated with hydrochemical analysis and statistical analysis was conducted. The hydraulic connection between surface water and groundwater was investigated. The results showed that the mass concentrations of anions and cations in the surface water and groundwater of Gongniergai gully exhibited the following order: ρ(Na⁺+K⁺)>ρ(Ca²⁺)>ρ(Mg²⁺) and ρ(HCO₃^-)>ρ(SO₄^2-)>ρ(Cl^-)>ρ(NO₃^-). The prevailing hydrochemical types were primarily categorized as HCO₃-Ca and Cl-Na. It is noteworthy that the mean concentrations of major ions in surface water were higher than those in groundwater. The observed water chemistry of surface water and groundwater were primarily influenced by rock weathering and cation exchange processes. The dissolution of carbonate rocks and silicate minerals were identified as the main sources of ions. There was a hydraulic connectivity existed between groundwater and surface water. The hydraulic connection between the Ⅱ-3 coal roof aquifer and the Quaternary groundwater and surface water was relatively weak. Thus, appropriate water prevention and control measures should be implemented when mining operations extend to bottom of the Gongniergai gully or the water logged area.