我省岩溶充水矿床较为广泛，可分为岩溶充水和暗河管道充水矿床两个类型，前者包括水文地质条件简单、中等和复杂三个亚类。

The karst water-filling mines in Hunan province occur widely, which can be divided into two types. that is, karst water-filling mine and underground river conduit water-filling mine.

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通过向斜核部地表、隧道内涌水点的水质分析，对隧道上方向斜地面地下水的径流模式进行了初步探讨，明确了在向斜核部、隧道上方的地层中存在着一条地下暗河或岩溶系统。

By means of the analysis of the quality of the surface water and ground water in the syncline core above the tunnel, the flow modes of the surface water and ground water in the syncline are discussed.

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