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基于自然水圈系统及水相转换间关系,对重力地下水与冻结岩层相互关系展开研究,分析了水文地质学、冻土学视角下的水循环特征。指出:1地下水的冻结大大改变了岩层的渗透性;2当含水岩层冻结及融化时,岩层中水的容量会有所改变,会极大地影响水文地质环境,促进特殊的低温物理地质过程和现象的发展;3岩层冻结和融化程度受水文地质条件制约的原因在于,冻融条件下地下水聚集态变化过程中的热量释放和耗损;4含水岩层的冻结和融化过程会对水化学环境产生实质性的影响,促进地下水特殊化学成分的形成,引起地下水水化学垂直分带的改变;5含水层的多重冻结和融化会改变含水岩层的物理属性,提高岩层的裂隙度和孔隙率,导致在解冻和冻结岩层的接触面形成了非常强的水淹带;6非冻结重力地下水是寒区含水层对流热流形成的原因。
Based on the relationship between natural hydrosphere system and water phase transformation, the relationship between gravity groundwater and frozen rock strata was studied, and the characteristics of water cycle under the perspective of hydrogeology and permafrost analysis were analyzed. Pointed out that: 1 the freezing of groundwater has greatly changed the permeability of rock strata; 2 when the rock strata freeze and thaw, the capacity of water in rock strata will be changed, which will greatly affect the hydrogeological environment and promote special low-temperature physical and geological processes and phenomena The reason why the degree of freezing and thawing of rock strata are restricted by hydrogeological conditions lies in the release of heat and depletion of groundwater in the process of freezing and thawing, and the freezing and thawing process of water-bearing strata will have a substantial effect on the chemical environment of water And promote the formation of special chemical composition of groundwater, causing the vertical zonation of groundwater hydrochemistry to change. 5 Multiple freezing and thawing of aquifers will change the physical properties of the aquifer and improve the fracture porosity and porosity of the rock formation, The contact surface of the frozen rock formation forms a very strong waterflooding zone.6 Non-freezing gravity groundwater is the cause of convective heat flow in the aquifer of the cold area.