An experimental device for determining hydraulic parameters of saturated and unsaturated soils under different temperature conditions
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Abstract:
In order to study the effect of temperature on the saturated - unsaturated hydraulic parameters, the measurement device for determining hydraulic parameters of saturated - unsaturated soils under variable temperature was developed based on Darcy's law, which contained test column, water supply and return system, and data acquisition system. The device could obtain the saturated permeability coefficient, water and soil water characteristic curve, and unsaturated permeability coefficient parameters, the water capacity and the diffusion rate at different temperatures. Then, the mathematical expressions of temperature and these parameters could be further obtained. In addition, it was shown that the high automatic degree device had popularization and application value for large samples to reduce the randomness of the small sample and determined the parameters of saturated - unsaturated soils.
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