FEM Analysis of a Concrete Faced Rockfill Dam
Several concrete faced rockfill dams in the world present cracks in the concrete face.In this paper the authors make an attempt to predict formation of cracks in one of such dams,the Mohale dam in Lesotho,South Africa.Foundation of the dam,dam body and the concrete slab are modelled in 3D. A MohrCoulomb plasticity model with hardening is adopted for the rockfill.Contact bew-teen the concrete face and rockfill is modelled with contact elements,with a Coulomb friction material constitutive model.Interface elements are used to model the vertical joints among the 37 panels that form the concrete face.For the concrete face a total strain crack model in combination with crushing is adopted.In the analysis the different construction stages have been considered,as well as the different impoundment stages. The results shown in this paper are displacement and stresses in the rockfill and the concrete face,crack patterns and crack strains in the concrete face,and openings of the vertical joints
CFRD cracking 3D
Gerd-Jan Schreppers Giovanna Lilliu
TNO DIANA BV,Schoemakerstraat 97 2613 DP Delft NL
国际会议
The 1st International Symposium on Rockfill Dams(第一届堆石坝国际研讨会)
成都
英文
221-226
2009-10-18（万方平台首次上网日期，不代表论文的发表时间）