滞后对石棉水力特性的影响

EFFECT OF HYSTERESIS ON THE HYDRAULIC PROPERTIES OF ROCKWOOL

测定石棉干枝和湿枝回滞曲线，验证由ＶａｎＧｅｎｕｃｈｔｅｎ提出的估计石棉回滞曲线匹配方程的可应用性，应用Ｍｕａｌｅｍ提出的预测模型来计算石棉的非饱和渗透系数，估计滞后对石棉水力特性的影响。

The objective of the study were:(1)to measure the water retention curve of rockwool onboth drying and wetting cycles;(2) to test the applicability of the curve-fitting equation pro-posed by Van Genuchten(1980)to estimate the water retention curve of rockwool;3) to apply apredictive model(Mualem,1976)to calculate the unsaturated hydraulic conductivity of rock-wool;4)to evaluate the effects of hysteresis on rockwool.