关键词: 重塑土, 原状土, 单轴抗压强度, 切线模量, 割线模量

Abstract: Using WDT-100 microcomputer controlled electro-hydraulic servo frozen uniaxial testing machine, this paper analyzed the remodeling status on the impact of uniaxial compressive strength and elastic modulus of frozen clay by comparing with that of the undisturbed frozen soil. The results showed that the uniaxial compressive strength of remolded soil samples is lower than that of the undisturbed soil samples. In Practice, the undisturbed soil strength which can not be obtained directly could be simulated by the remolded strength multiplied by the scaling factor of 1.2. For the elastic modulus, the elastic modulus of undisturbed soil could be simulated by the tangent modulus of remolded soil multiplied by the scaling factor of 1.16 when the temperature was higher than -10 ℃; when the temperature was below -10 ℃, the elastic modulus of undisturbed soil could be directly simulated by the remolded soil secant modulus.

Key words: Remolded soil, Undisturbed soil, Uniaxial compressive strength, Tangent modulus, Secant modulus