Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Modelling Extreme Oedometric Unloading of a High Plasticity Overconsolidated Clay with Two Anisotropic Bounding Surface Plasticity Models
The development and improvement of constitutive relations for soil modelling in the past decades has resulted in a large suite of models that can account well for most experimental observations. The primary focus for their development has however been simulation of different static and cyclic shearing scenarios as well as isotropic and oedometric compression, while oedometric unloading simulations are commonly limited to relatively small OCR. Because of the recent progress in experimentation on extreme unloading (OCR > 20) of high plasticity overconsolidated clay, the necessary data for testing the capability of existing models in this scenario is available.
Two anisotropic bounding surface models: B-SClay1 and SANICLAY-B, are explored in terms of representing the extreme unloading of folded Røsnæs Clay. It is observed that the position of the conjugate point outside the zero principal stress lines for the bubble model makes the radial mapping rule superior in reproducing the deformation response. For the SANICLAY-B model a linear correlation is established between the gradual plasticity parameter and the experimentally observed swelling index plateau.
Modelling Extreme Oedometric Unloading of a High Plasticity Overconsolidated Clay with Two Anisotropic Bounding Surface Plasticity Models
The development and improvement of constitutive relations for soil modelling in the past decades has resulted in a large suite of models that can account well for most experimental observations. The primary focus for their development has however been simulation of different static and cyclic shearing scenarios as well as isotropic and oedometric compression, while oedometric unloading simulations are commonly limited to relatively small OCR. Because of the recent progress in experimentation on extreme unloading (OCR > 20) of high plasticity overconsolidated clay, the necessary data for testing the capability of existing models in this scenario is available.
Two anisotropic bounding surface models: B-SClay1 and SANICLAY-B, are explored in terms of representing the extreme unloading of folded Røsnæs Clay. It is observed that the position of the conjugate point outside the zero principal stress lines for the bubble model makes the radial mapping rule superior in reproducing the deformation response. For the SANICLAY-B model a linear correlation is established between the gradual plasticity parameter and the experimentally observed swelling index plateau.
Modelling Extreme Oedometric Unloading of a High Plasticity Overconsolidated Clay with Two Anisotropic Bounding Surface Plasticity Models
Lecture Notes in Civil Engineering
Barla, Marco (Herausgeber:in) / Di Donna, Alice (Herausgeber:in) / Sterpi, Donatella (Herausgeber:in) / Insana, Alessandra (Herausgeber:in) / Kinslev, Emil Mejlhede (Autor:in) / Hededal, Ole (Autor:in) / Rocchi, Irene (Autor:in) / Zania, Varvara (Autor:in)
International Conference of the International Association for Computer Methods and Advances in Geomechanics ; 2022 ; Turin, Italy
31.07.2022
8 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch