- Title
- Analysis of undrained cylindrical cavity expansion in rate-dependent soil
- Creator
- Zhang, Minsheng; Li, Changfa; Kouretzis, George; Carter, John P.; Pei, Huimin; Luan, Lubao
- Relation
- Computers and Geotechnics Vol. 168, no. 106107
- Publisher Link
- http://dx.doi.org/10.1016/j.compgeo.2024.106107
- Publisher
- Elsevier
- Resource Type
- journal article
- Date
- 2024
- Description
- This paper presents a semi-analytical solution for calculating soil stresses and pore pressures in the vicinity of an expanding cylindrical cavity. The main features of the solution are: i) realistic modelling of time-dependent soil behaviour, by means of an elastic-viscoplastic constitutive model, and ii) accurate prediction of soil strength under the stress path followed during plane-strain undrained cavity expansion, by using the transformed stress method to formulate the solution in the three-dimensional stress space and adopting an appropriate failure criterion. Predictions of the presented solution are benchmarked against a published solution, and are comprehensively analysed to identify the effect of the failure criterion and of the cavity expansion rate on the soil stresses and pore pressures developing in the vicinity of the cavity, and the associated stress paths.
- Subject
- cylindrical cavity expansion; rate dependency; failure criterion; elastic-viscoplastic constitutive model; transformed stress method
- Identifier
- http://hdl.handle.net/1959.13/1502673
- Identifier
- uon:55262
- Identifier
- ISSN:0266-352X
- Language
- eng
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