Abstract
Soil particles and ice form bonded structure in frozen soil. The modulus and bond strength of frozen soil decrease with the damage of the bonded structure during deformation. An elastoplastic damage constitutive model, based on the super/subloading yield surfaces, is proposed for frozen soil, in which the damage variable and bond strength are used to consider the elastic and plastic damage respectively. The model is validated with the observed mechanical behaviors of frozen sandy soil and frozen saline soil in triaxial compression tests with different confining pressures. The comparisons illustrate that the model can describe the hardening/softening and dilatancy of frozen soils with the change of confining pressures. The results also show that the expansion of frozen soil during shear is related to the loss of bond strength induced by the development of damage of the bonded structure.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
