Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Research of Rock Mass Unloading Constitutive Model and its Engineering Application
Based on the results of triaxial unloading tests，the stress-strain characteristics and failure characteristics of rock mass have been discussed. Considering unloading degree as an important parameter，an elastic-brittle-plastic mechanical model has been established according to the unloading stress condition，which considers that unloading yield function varies linearly between Griffith with Hoek-Brown criterion after rock mass receives plastic deformation caused by unloading. Taking jinshajiang excavation slope of a hydropower station as engineering background, the three-dimensional continua fast Lagrangian analysis software FLAC3D is employed in the slope stability analysis under the excavation, and the distribution characteristics of the slop deformation is studied.
Research of Rock Mass Unloading Constitutive Model and its Engineering Application
Based on the results of triaxial unloading tests，the stress-strain characteristics and failure characteristics of rock mass have been discussed. Considering unloading degree as an important parameter，an elastic-brittle-plastic mechanical model has been established according to the unloading stress condition，which considers that unloading yield function varies linearly between Griffith with Hoek-Brown criterion after rock mass receives plastic deformation caused by unloading. Taking jinshajiang excavation slope of a hydropower station as engineering background, the three-dimensional continua fast Lagrangian analysis software FLAC3D is employed in the slope stability analysis under the excavation, and the distribution characteristics of the slop deformation is studied.
Research of Rock Mass Unloading Constitutive Model and its Engineering Application
Applied Mechanics and Materials ; 71-78 ; 1846-1849
27.07.2011
4 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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