【摘要】 冻土问题,一直被认为是建设冻土地区交通基础设施的一项世界难题。考虑到冻土的力学性质与环境的依赖关系,为掌握冻土的力学性质以及应力的真实分布情况,冻胀力的测试必须在现场完成。本实验装置以套孔应力解除法为原理,再充分地考虑了冻土层的特性后,设计了一机多用的应力测试装置。更多还原

【Abstract】 Frozen soil has been regarded as a difficult problem around the world in the infrastructural construction of transportation in areas featuring frozen soil. As regards its dependence on environment on account of its mechanical nature, the measurement of frost force must be taken on the spot so as to understand the mechanical nature of frozen soil and size up the real distribution of stress. The multi-purpose device is designed on the basis of the principle of stress relief by overcoring method with consideration of the specific characteristics of frozen soil.更多还原