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Selection of Cam-Clay Model Parameters for Loess Subsoil as Exemplified by a FEM 3D Analysis of a Wide Building

Selection of Cam-Clay Model Parameters for Loess Subsoil as Exemplified by a FEM 3D Analysis of a... AbstractThe paper presents an analysis of the parameters selection for the Cam-Clay model for the purposes of FEM calculations concerning a wide residential building. Model parameters were determined on the basis of CPT and SDMT field tests, as well as laboratory triaxial and oedometer tests. Geodetic benchmarks for which vertical displacement measurements were periodically carried out using the precision levelling method were placed on the building. Multi-stage calculations were performed as part of numerical analyses. The places where benchmarks had been placed were separated using a model of the building. Subsequently, multivariate calculations were made with parameters derived using various methods. After calibrating the partial models, the next step consisted of calculations in respect of the entire building model, including the subsoil. At each stage, the results of vertical displacements were compared to the real values measured geodetically. As a result, a convergence of displacements from both the numerical analysis and the values measured geodetically was achieved. This allowed us to propose a methodology for determining the parameters of the Cam-Clay model for the loess subsoil directly on the basis of the results of field tests. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Acta Scientiarum Polonorum Architectura de Gruyter

Selection of Cam-Clay Model Parameters for Loess Subsoil as Exemplified by a FEM 3D Analysis of a Wide Building

Nepelski, Krzysztof
Acta Scientiarum Polonorum Architectura , Volume 19 (2): 15 – Jun 1, 2020
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References (20)

Publisher
de Gruyter
Copyright
© 2020 Krzysztof Nepelski, published by Sciendo
eISSN
2544-1760
DOI
10.22630/aspa.2020.19.2.19
Publisher site
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Abstract

AbstractThe paper presents an analysis of the parameters selection for the Cam-Clay model for the purposes of FEM calculations concerning a wide residential building. Model parameters were determined on the basis of CPT and SDMT field tests, as well as laboratory triaxial and oedometer tests. Geodetic benchmarks for which vertical displacement measurements were periodically carried out using the precision levelling method were placed on the building. Multi-stage calculations were performed as part of numerical analyses. The places where benchmarks had been placed were separated using a model of the building. Subsequently, multivariate calculations were made with parameters derived using various methods. After calibrating the partial models, the next step consisted of calculations in respect of the entire building model, including the subsoil. At each stage, the results of vertical displacements were compared to the real values measured geodetically. As a result, a convergence of displacements from both the numerical analysis and the values measured geodetically was achieved. This allowed us to propose a methodology for determining the parameters of the Cam-Clay model for the loess subsoil directly on the basis of the results of field tests.

Journal

Acta Scientiarum Polonorum Architectura – de Gruyter

Published: Jun 1, 2020

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