Abstract

This paper presents a modified unified critical state model to predict the mechanical responses of both clays and sands under over-consolidation and cyclic loading conditions on the basis of clay and sand model (CASM), which is named as CASM-kII. Through the application of subloading surface concept, CASM-kII is able to describe the plastic deformation inside the yield surface and the reverse plastic flow, and is thus expected to capture the over-consolidation and cyclic loading behaviours of soils. CASM-kII is numerical implemented by the using of the forward Euler scheme with automatic substepping and error control. Then, a sensitivity study is carried out to check the influences of the three new parameters of CASM-kII on the mechanical response of soils in over-consolidation and cyclic loading conditions. Through the comparisons of experimental data and simulated results, it is found that CASM-kII is able to satisfactorily describe the mechanical responses of both clays and sands in over-consolidation and cyclic loading conditions.

Details

Title
Modified unified critical state model for soils considering over-consolidation and cyclic loading behaviours
Author
Wang, Xiaowen 1 ; Yuan, Ran 2 ; Cui, Kai 3 

 Southwest Jiaotong University, School of Civil Engineering, Chengdu, China (GRID:grid.263901.f) (ISNI:0000 0004 1791 7667) 
 Southwest Jiaotong University, Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, Chengdu, China (GRID:grid.263901.f) (ISNI:0000 0004 1791 7667) 
 Southwest Jiaotong University, Key Laboratory of High-Speed Railway Engineering, Ministry of Education, Chengdu, China (GRID:grid.263901.f) (ISNI:0000 0004 1791 7667) 
Pages
3024
Publication year
2023
Publication date
2023
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2778491239
Copyright
© The Author(s) 2023. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.