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Rheological consolidation solutions for multi-layered natural structured soft clays based on a nonparallel isotache model
The apparent influence of stress states on rheological deformation should be considered in calculating consolidation behavior for natural structured soft clays. A novel nonparallel isotache model with naturally structural characteristics was developed in this study, taking into account the variation of secondary compression coefficient with stress state and collapse state of soil structure under the elastic viscoplastic framework. The proposed rheological model was used to couple the consolidation of multi-layered soft clays under various drainage conditions. The settlement solutions, degree of consolidation, and excess pore water pressure in a short time interval were derived mathematically, and the rheological consolidation solutions were programmed and calculated using a semi-analytical method. Good agreement with experimental results indicated that the model was reasonable, and the calculation method was efficient and accurate. A series of cases were presented to investigate the effects of model parameters, soil structure, and loading mode on rheological consolidation behavior. The variation law of soil parameters and state was also discussed.
Rheological consolidation solutions for multi-layered natural structured soft clays based on a nonparallel isotache model
The apparent influence of stress states on rheological deformation should be considered in calculating consolidation behavior for natural structured soft clays. A novel nonparallel isotache model with naturally structural characteristics was developed in this study, taking into account the variation of secondary compression coefficient with stress state and collapse state of soil structure under the elastic viscoplastic framework. The proposed rheological model was used to couple the consolidation of multi-layered soft clays under various drainage conditions. The settlement solutions, degree of consolidation, and excess pore water pressure in a short time interval were derived mathematically, and the rheological consolidation solutions were programmed and calculated using a semi-analytical method. Good agreement with experimental results indicated that the model was reasonable, and the calculation method was efficient and accurate. A series of cases were presented to investigate the effects of model parameters, soil structure, and loading mode on rheological consolidation behavior. The variation law of soil parameters and state was also discussed.
Rheological consolidation solutions for multi-layered natural structured soft clays based on a nonparallel isotache model
Acta Geotech.
Xia, Changqing (Autor:in) / Zhu, Min (Autor:in) / Chen, Wei (Autor:in) / Wang, Xuetao (Autor:in) / Chen, Xiangsheng (Autor:in)
Acta Geotechnica ; 18 ; 6335-6352
01.12.2023
18 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Multi-layered strata , Nonparallel isotache model , Rheological consolidation , Structured soft clays Engineering , Geoengineering, Foundations, Hydraulics , Solid Mechanics , Geotechnical Engineering & Applied Earth Sciences , Soil Science & Conservation , Soft and Granular Matter, Complex Fluids and Microfluidics
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