A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A simple rheological element based creep model for frozen soils
Abstract Creep of frozen soils is one of the most important issues in cold regions engineering. This paper first reviews the state-of-the-art of creep models for frozen soils. It is found that the elementary rheological models are more feasible in describing the creep of frozen soils. The authors propose a simple model by combining Maxwell, Kelvin and Bingham body, with a parabolic yield criterion. The model is verified by the direct shear creep tests on frozen fine sand, and the calculated creep strains agree in general with test data. A field loading test in Beiluhe site along Qinghai–Tibet railway is modeled on FLAC platform with the proposed model and the simulated settlement of underlying warm and ice-rich permafrost well coincide with the in situ monitored data.
Highlights A simple rheological element based creep model was proposed for frozen soils This model was verified by the direct shear creep test on frozen fine sand A field loading test was modeled on FLAC based on the proposed model The simulated settlement well coincides with the monitored data
A simple rheological element based creep model for frozen soils
Abstract Creep of frozen soils is one of the most important issues in cold regions engineering. This paper first reviews the state-of-the-art of creep models for frozen soils. It is found that the elementary rheological models are more feasible in describing the creep of frozen soils. The authors propose a simple model by combining Maxwell, Kelvin and Bingham body, with a parabolic yield criterion. The model is verified by the direct shear creep tests on frozen fine sand, and the calculated creep strains agree in general with test data. A field loading test in Beiluhe site along Qinghai–Tibet railway is modeled on FLAC platform with the proposed model and the simulated settlement of underlying warm and ice-rich permafrost well coincide with the in situ monitored data.
Highlights A simple rheological element based creep model was proposed for frozen soils This model was verified by the direct shear creep test on frozen fine sand A field loading test was modeled on FLAC based on the proposed model The simulated settlement well coincides with the monitored data
A simple rheological element based creep model for frozen soils
Wang, Songhe (author) / Qi, Jilin (author) / Yin, Zhenyu (author) / Zhang, Jianming (author) / Ma, Wei (author)
Cold Regions, Science and Technology ; 106-107 ; 47-54
2014-06-22
8 pages
Article (Journal)
Electronic Resource
English
A simple rheological element based creep model for frozen soils
| Online Contents | 2014
Creep characteristics of frozen soils
| Elsevier | 1979
Reply - Creep behavior of finegrained frozen soils.
| Online Contents | 1993
A Review on Creep of Frozen Soils
| Springer Verlag | 2013
Creep Constitutive Model for Frozen Soils Based on Hardening and Damage Effects
| Springer Verlag | 2020