Abstract
The compression tests and the bending tests are performed to study the moduli of deformation of frozen sand and clay. As a result, the measurement method of the compression tests is improved to exclude the influence of disturbance of the near ends of specimen, and the appropriate range of specimen height is shown to remove the influence on moduli of deformation. Also, it is explained that the influence on the moduli of deformation by strain rate and by dry density of the specimen is small, and that little difference of the moduli of deformation between compression tests and bending tests is found. Moreover, the experimental formula of the moduli of deformation as a function of temperature are proposed. Finally, the constitutive equations of frozen soil including breakage point are proposed for the elasto-plastic analysis of composite structure which includes frozen soil and other materials.
