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给水度在地下水资源计算中是关键性的水文地质参数,在有粘性土分布,尤其是黄土分布的灌区,潜水水位变幅带以及部分潜水含水层,计算降水入渗系数、灌溉入渗系数以及蒸发率等都需要求知粘性土给水度值。本文为了获得粘性土给水度值,采用了疏干漏斗法、非稳定流抽水试验法以及粘性土给水度仪室内测定法等进行测试对比,试图找出合理的方法,以解决当前生产急需。
The water supply is a key hydrogeological parameter in the calculation of groundwater resources. In the distribution of cohesive soils, especially in the irrigated areas where the loess is distributed, the amplitude of the submerged water level and some of the submerged aquifers, the precipitation infiltration coefficient, irrigation infiltration coefficient, and Evaporation rate, etc. need to know the value of the clay water supply. In this paper, in order to obtain the value of the clay soil water supply, the test methods of draining funnel method, unsteady flow pumping test method and cohesive soil water meter indoor measurement method were used to test and contrast, trying to find a reasonable method to solve the urgent need of current production.