冻结滞水形成机制的探讨

资料表明，冻结滞水形成机制是在冬季的冻结作用下，包气滞冻土层内产生氢键吸附能，饱和水汽压差和气管薄膜等机制构成冻结势。它具用奶强的吸附能凝聚水分，全副钨气带水和潜水液态，汽态向冻结层迁移富集；形成季节性固态地下水。在冻结期间包气带水盐具有明显倒置分带性：冻结滞水带；过渡水分带；支持毛管水汽化输水带。

An Approach to the Formation Mechanism of Frozen Perched Ground Water

The data obtained from field investigations shows that the mechanism of frozen perched ground water formation is that adsorption energy of hydrogen bond, saturated vapor pressure difference and capillarity appear in the air containing frozen layer as a result of winter freezing, forming a freezing potential (thermodynamic potential). The high absorption energy makes ground water in air containing zone move towards the freezing layer and produce seasonal frozen perched ground water. In the frozen period, the layers of water and salt in air containing zone are obviously inverted, i.e., frozen perched water zone uppermost, followed by interim water zone and then capillary water holding vapor zone. The formation machanism of frozen perched water and the abundance of water are deeply dependent on the depth of phreatic water, soil properties, temperature gradient freezing rate etc.