Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Experimental Identification of Plastic Shakedown Behaviors of Saturated Clay Subjected to Traffic Loading
Traffic moving loading causes the rotation of principal stress axis and leads to a heart-shaped stress path in the deviatoric stress space. Using the Dynamic Hollow Cylinder Apparatus (DHCA) - a series of heart-shaped and triaxial, cyclic, undrained tests - was performed on Shanghai saturated soft clay. The axial strain, its rate, and energy dissipation are used to classify three cyclic characteristic behaviors (i.e., plastic shakedown, cyclic plastic creep and cyclic incremental failure). For the plastic shakedown response, the permanent axial strain becomes stable and the hysteretic loop area tends to reach a low constant level. For the cyclic plastic creep, axial strain rate and energy dissipation decrease with a small increment of axial strain, but the axial strain increment tends to be constant after a large number of cycles. For the incremental failure response, the strain increment is growing and the energy dissipation increment increases after a limited number of cycles.
Experimental Identification of Plastic Shakedown Behaviors of Saturated Clay Subjected to Traffic Loading
Traffic moving loading causes the rotation of principal stress axis and leads to a heart-shaped stress path in the deviatoric stress space. Using the Dynamic Hollow Cylinder Apparatus (DHCA) - a series of heart-shaped and triaxial, cyclic, undrained tests - was performed on Shanghai saturated soft clay. The axial strain, its rate, and energy dissipation are used to classify three cyclic characteristic behaviors (i.e., plastic shakedown, cyclic plastic creep and cyclic incremental failure). For the plastic shakedown response, the permanent axial strain becomes stable and the hysteretic loop area tends to reach a low constant level. For the cyclic plastic creep, axial strain rate and energy dissipation decrease with a small increment of axial strain, but the axial strain increment tends to be constant after a large number of cycles. For the incremental failure response, the strain increment is growing and the energy dissipation increment increases after a limited number of cycles.
Experimental Identification of Plastic Shakedown Behaviors of Saturated Clay Subjected to Traffic Loading
Qian, J. G. (Autor:in) / Wang, Y. G. (Autor:in) / Huang, M. S. (Autor:in) / Xue, J. F. (Autor:in)
Geo-Shanghai 2014 ; 2014 ; Shanghai, China
Soil Behavior and Geomechanics ; 353-362
05.05.2014
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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