【摘要】 基于连续介质力学和热力学理论,建立了城市道路翻浆过程中的动力学模型,并对季节性冻土地区翻浆冻害现象进行数值模拟分析,初步探讨了翻浆过程中土壤含水量和温度随时间和深度变化的关系。计算结果表明,翻浆过程中在冻结峰面附近形成一个冻结含水量峰值,且该峰值随着冻结时间的延长而向深度发展。这对于路基路面的综合设计,防止翻浆的发生有着重要的理论意义和实际应用价值。更多还原

【Abstract】 A dynamics model in the process of frost boiling on urban road is established based on the theory of continuum mechanics and the thermodynamics.The numerical simulation analysis is studied for the frost boiling phenomena of seasonal frozen soil area,and the soil moisture content and temperature changing with time and depth in the process of frost boiling are discussed in this paper.The results indicated that a peak of frozen moisture content is formed in frozen peak surface,which is developed for depth changing with time increasing.It would be theoretic significance and pracical value to the design of subgrade and pavement and prevent the frost boiling.更多还原