摘要
水在膨胀性岩土中发挥着至关重要的作用，而膨胀岩土体中的水分分布随空间和时间而改变。文中引入折减吸力，通过分析提出膨胀屈服面的概念，并给出相应函数表达形式及硬化规律。从非饱和渗流出发，推导体积可变时的吸力分布控制方程，并建立膨胀岩土体湿度应力场理论的耦合方程。
Water plays an important role in expansive rock and soil mass,and its distribution varies with space time.The concept of reduced suction is introduced in this paper and the concept of swelling yield surface and hardening law are porposed.The paper also gives the controlling equation about suction distribution.So coupling equation on wet stress field theory about expansive rock and soil mass is formulated.
出处
《地质灾害与环境保护》
1998年第2期49-54,共6页
Journal of Geological Hazards and Environment Preservation
关键词
膨胀岩土
湿度本构模型
膨胀屈服面
水分分布
Swelling rock and soil Wet constitutive model Suction Swelling yield surface
