With the deuterium excess ( d - excess ) parameter , the conclusion that the tunnel location lies on the watershed between south and north geohydrology structures is validated 利用氘过量参数，进而证实了隧道选址位于南北两侧水文地质单元的分水岭之上的结论。
2.
Generally , common geohydrology means only resolve partly the problems mentioned above , whereas , the isotope geohydrology plays an important role unrepiaced with other techniques in the research of karst groundwater 通常，常规的水文地质方法解决上述问题的能力非常有限，而同位素水文地球化学在岩溶地下水的研究中所发挥的作用，是其它的技术方法难以替代的。
3.
Through summarization for complicated geohydrology and engineering geology condition of research area , the non - stability 3 - dimension flow model of ground water and land subsidence model were established in this thesis . the coupled models of ground water and land subsidence were combined with a large series of water level observation and land subsidence information to debug the parameters and ascertain the models 两者通过含水层的水位内在联系耦合在一起，并根据研究区水文地质条件及抽水试验资料，结合大量的水位观测序列资料及地面沉降观测资料对模型进行调参，标定地下热水运移的三维有限元数值模型，所建模型可以对地下水水位及地面沉降同时进行模拟预测。
4.
On the regional karst water , it has been primarily clarified that the distributing trait , the cause of formation , and the environment background , and it has been confirmed that the source , the height , and the location about the karst groundwater replenishment . we have found out the relationship of developing circulation among the atmospheric water , the surface water , and the groundwater in the research area , and have compartmentalized the different geohydrology structures about the karst water . 2 初步查明了研究区的岩溶水分布特点、岩溶水的成因及形成的环境背景，确定岩溶地下水的补给源区、补给高度、位置及岩溶区内大气降水，地表水、地下水的动态循环关系，划分出岩溶水不同的水文地质单元； 2
