摘要
热力学是一种普适理论,因此非饱和砂土的变化过程必然也遵循热力学原理。利用热力学原理可以从更普遍的情况(条件)和更一般的视角审视非饱和土的水力-力学性质。本文基于热力学理论并考虑砂土的剪胀-各向异性以及塑性耗散之间的关系,建立固-液两相耦合的非饱和砂土本构模型的理论框架,更深入地揭示非饱和砂土复杂的行为和性质。
The mechanical behavior of unsaturated sands inevitably follows the principles of thermodynamics.By this method,we can study the hydraulic-mechanical behavior of soils with a general insight under a more universal law.Based on thermodynamical theory,and considering the relations among dilatancy,anisotropy and plastic dissipation of sands,a solid-liquid coupled constitutive modeling framework is established which can deeply indicate many complex behavior and properties for unsaturated sands.
出处
《工程地质学报》
CSCD
北大核心
2014年第6期1094-1101,共8页
Journal of Engineering Geology
基金
国家自然科学基金(50906020)资助
关键词
非饱和砂土
热力学
剪胀
耗散函数
Unsaturated sands Thermodynamics Dilatancy Dissipation function