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本文应用2H、18O和3H等同位素结合水文地球化学研究,在研究区地质及水文地质条件约束下,研究了研究区内与F29断层相关的各类水体之间的关系,以及F29断层水的补给方向、补给高程及补给水源的同位素水文地球化学证据。为小浪底北岸灌区2号工程11号隧洞涌水问题的处理提供了科学依据。研究结果表明研究区裂隙型地下水可分为:上部风化裂隙水和下部构造裂隙水。影响本区裂隙含水、富水条件的主控因素为构造断裂,在沿着F29断裂走向及垂向方向上皆为良好导水通道。隧洞涌水主要来自于下部构造裂隙水,占76.9%,上部风化裂隙水所占比例为23.1%。
In this paper, using isotopes of 2H, 18O and 3H combined with hydrogeochemistry research, under the constraints of geological and hydrogeological conditions in the study area, the relationship between various types of water bodies related to the F29 fault and the supply of F29 fault water Isotope Hydrogeochemistry Evidence of Orientation, Replenishment Elevation and Replenishment Source. It provides a scientific basis for the treatment of gushing water of No. 11 tunnel project of Xiaolangdi North Shore Irrigation Project. The results show that the fractured groundwater in the study area can be divided into upper weathering crevice water and lower structural crevice water. The main controlling factor affecting the water and water-rich conditions in the fissures in this area is tectonic fault, which is a good conduit for water flow along both F29 fracture direction and vertical direction. The gushing water in the tunnel mainly comes from the fissure water in the lower part of the structure, accounting for 76.9% and the proportion of the upper weathered fissure water being 23.1%.