Modelling of spudcan foundation penetrations using an improved hypoplastic model for soft clays

J Jerman, D Mašín, R Ragni, B Bienen

Research output: Chapter in Book/Conference paperConference paper

Abstract

In this paper, a new hypoplastic model for K0 consolidated soft clays is presented. The enhanced model is characterized by a small number of parameters, adding two parameters to the original model, whilst significantly improving model predictions of undrained stress paths of K0 consolidated soils. However, the calibration procedure remains simple – model can be calibrated using K0 consolidated triaxial tests and oedometer only. It is demonstrated that the model predictions compare well with element test experimental data. The validation of the model involves large scale boundary value problem simulations incorporating very large deformations, in this case retrospective simulations of centrifuge test of spudcan installation. The enhanced model shows better performance compared to a parent hypoplastic model.

Original languageEnglish
Title of host publicationProceedings of GeoShanghai 2018 International Conference: Advances in Soil Dynamics and Foundation Engineering
EditorsTong Qiu, Binod Tiwari, Zhen Zhang
Place of PublicationSingapore
PublisherSpringer
Pages749-756
ISBN (Electronic)9789811301315
ISBN (Print)9789811301308
Publication statusPublished - 2018
Event4th GeoShanghai International Conference w - Shanghai, China
Duration: 27 May 201830 May 2018

Conference

Conference4th GeoShanghai International Conference w
CountryChina
CityShanghai
Period27/05/1830/05/18

Fingerprint

soft clay
penetration
modeling
triaxial test
centrifuge
prediction
simulation
calibration

Cite this

Jerman, J., Mašín, D., Ragni, R., & Bienen, B. (2018). Modelling of spudcan foundation penetrations using an improved hypoplastic model for soft clays. In T. Qiu, B. Tiwari, & Z. Zhang (Eds.), Proceedings of GeoShanghai 2018 International Conference: Advances in Soil Dynamics and Foundation Engineering (pp. 749-756). Singapore: Springer.
Jerman, J ; Mašín, D ; Ragni, R ; Bienen, B. / Modelling of spudcan foundation penetrations using an improved hypoplastic model for soft clays. Proceedings of GeoShanghai 2018 International Conference: Advances in Soil Dynamics and Foundation Engineering. editor / Tong Qiu ; Binod Tiwari ; Zhen Zhang. Singapore : Springer, 2018. pp. 749-756
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title = "Modelling of spudcan foundation penetrations using an improved hypoplastic model for soft clays",
abstract = "In this paper, a new hypoplastic model for K0 consolidated soft clays is presented. The enhanced model is characterized by a small number of parameters, adding two parameters to the original model, whilst significantly improving model predictions of undrained stress paths of K0 consolidated soils. However, the calibration procedure remains simple – model can be calibrated using K0 consolidated triaxial tests and oedometer only. It is demonstrated that the model predictions compare well with element test experimental data. The validation of the model involves large scale boundary value problem simulations incorporating very large deformations, in this case retrospective simulations of centrifuge test of spudcan installation. The enhanced model shows better performance compared to a parent hypoplastic model.",
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editor = "Tong Qiu and Binod Tiwari and Zhen Zhang",
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Jerman, J, Mašín, D, Ragni, R & Bienen, B 2018, Modelling of spudcan foundation penetrations using an improved hypoplastic model for soft clays. in T Qiu, B Tiwari & Z Zhang (eds), Proceedings of GeoShanghai 2018 International Conference: Advances in Soil Dynamics and Foundation Engineering. Springer, Singapore, pp. 749-756, 4th GeoShanghai International Conference w, Shanghai, China, 27/05/18.

Modelling of spudcan foundation penetrations using an improved hypoplastic model for soft clays. / Jerman, J; Mašín, D; Ragni, R; Bienen, B.

Proceedings of GeoShanghai 2018 International Conference: Advances in Soil Dynamics and Foundation Engineering. ed. / Tong Qiu; Binod Tiwari; Zhen Zhang. Singapore : Springer, 2018. p. 749-756.

Research output: Chapter in Book/Conference paperConference paper

TY - GEN

T1 - Modelling of spudcan foundation penetrations using an improved hypoplastic model for soft clays

AU - Jerman, J

AU - Mašín, D

AU - Ragni, R

AU - Bienen, B

PY - 2018

Y1 - 2018

N2 - In this paper, a new hypoplastic model for K0 consolidated soft clays is presented. The enhanced model is characterized by a small number of parameters, adding two parameters to the original model, whilst significantly improving model predictions of undrained stress paths of K0 consolidated soils. However, the calibration procedure remains simple – model can be calibrated using K0 consolidated triaxial tests and oedometer only. It is demonstrated that the model predictions compare well with element test experimental data. The validation of the model involves large scale boundary value problem simulations incorporating very large deformations, in this case retrospective simulations of centrifuge test of spudcan installation. The enhanced model shows better performance compared to a parent hypoplastic model.

AB - In this paper, a new hypoplastic model for K0 consolidated soft clays is presented. The enhanced model is characterized by a small number of parameters, adding two parameters to the original model, whilst significantly improving model predictions of undrained stress paths of K0 consolidated soils. However, the calibration procedure remains simple – model can be calibrated using K0 consolidated triaxial tests and oedometer only. It is demonstrated that the model predictions compare well with element test experimental data. The validation of the model involves large scale boundary value problem simulations incorporating very large deformations, in this case retrospective simulations of centrifuge test of spudcan installation. The enhanced model shows better performance compared to a parent hypoplastic model.

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BT - Proceedings of GeoShanghai 2018 International Conference: Advances in Soil Dynamics and Foundation Engineering

A2 - Qiu, Tong

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Jerman J, Mašín D, Ragni R, Bienen B. Modelling of spudcan foundation penetrations using an improved hypoplastic model for soft clays. In Qiu T, Tiwari B, Zhang Z, editors, Proceedings of GeoShanghai 2018 International Conference: Advances in Soil Dynamics and Foundation Engineering. Singapore: Springer. 2018. p. 749-756