TY - JOUR
T1 - Creep of geomaterials - some finding from the EU project CREEP
AU - Grimstad, Gustav
AU - Karstunen, Minna
AU - Jostad, Hans Petter
AU - Sivasithamparam, Nallathamby
AU - Mehli, Magne
AU - Zwanenburg, Cor
AU - den Haan, Evert
AU - Amiri, Seyed Ali Ghoreishian
AU - Boumezerane, Djamalddine
AU - Kadivar, Mehdi
AU - Ashrafi, Mohammad Ali Haji
AU - Rønningen, Jon A.
PY - 2017/1/12
Y1 - 2017/1/12
N2 - This paper gives a summary of some of the main findings of the EU founded project “Creep of geomaterials”, CREEP. CREEP was an Industry-Academia Partnerships and Pathways (IAPP) project funded from the 7th Framework Programme (FP7/2007–2013) of the EC under grant agreement PIAG-GA-2011-286397. The project aimed at establishing a consensus in creep modelling within geotechnical engineering. The materials studied were clay, peat and frozen soils (permafrost). Throughout the project, research on material behaviour in laboratory and field studies was combined with numerical studies using existing and newly developed mathematical frameworks. This paper summarises some of the findings in the project, although the focus is on the developments in the field of soft soils and soft clay in particular. The paper presents a unified enhanced soft clay creep model, which takes into account anisotropy, structure and rate dependency of the material. The performance of the model is demonstrated through analysis of the Murro test embankment. In addition, the paper gives an overview of some characteristics for frozen soil and peat. Some of the considerations regarding, e.g. over consolidation ratio for clay with respect to strain rate are very much valid for peat and frozen soil as well.
AB - This paper gives a summary of some of the main findings of the EU founded project “Creep of geomaterials”, CREEP. CREEP was an Industry-Academia Partnerships and Pathways (IAPP) project funded from the 7th Framework Programme (FP7/2007–2013) of the EC under grant agreement PIAG-GA-2011-286397. The project aimed at establishing a consensus in creep modelling within geotechnical engineering. The materials studied were clay, peat and frozen soils (permafrost). Throughout the project, research on material behaviour in laboratory and field studies was combined with numerical studies using existing and newly developed mathematical frameworks. This paper summarises some of the findings in the project, although the focus is on the developments in the field of soft soils and soft clay in particular. The paper presents a unified enhanced soft clay creep model, which takes into account anisotropy, structure and rate dependency of the material. The performance of the model is demonstrated through analysis of the Murro test embankment. In addition, the paper gives an overview of some characteristics for frozen soil and peat. Some of the considerations regarding, e.g. over consolidation ratio for clay with respect to strain rate are very much valid for peat and frozen soil as well.
KW - Soil
KW - Creep
KW - Clay
KW - Peat
KW - Permafrost
KW - Deformation
U2 - 10.1080/19648189.2016.1271360
DO - 10.1080/19648189.2016.1271360
M3 - Article
SN - 2116-7214
JO - European Journal of Environmental and Civil Engineering
JF - European Journal of Environmental and Civil Engineering
ER -