路基温度场、湿度场耦合作用计算模型

The calculation model of the coupling action of temperature field and humidity field in damp subgrade

根据傅里叶定律和达西水分传导定律导出潮湿路基温度场与湿度场耦合作用的一维计算模型,将冻土区与未冻土区统一起来,利用显热容法处理冻土复杂的相变问题.该法可用于公路路基温度场和湿度场的预测及路基路面工程结构防冻设计之中.

On the basis of Fourier law and Darcy law,the onedimension calculating model of the coupling action of temperature field and humidity field in damp subgrade was derived.By the solution of clear heat equivalent ,the frozen and unfrozen earth area were united to solve the complex phase change question of frozen earth.This measure can be applied into the forecast of temperature field and humidity field in damp subgrade and the design of frozen prevenion in subgrade and pavement structure.