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Finite element modeling of the tensile capacity of suction caissons in cohesionless soil
Graphical abstract Display Omitted
Abstract When suction caissons are used as foundations for jacket structures, the caissons are exposed to significant vertical loads. If the self-weight of the structure is relatively low, a large horizontal load may lead to tension on the foundation on the incoming side. For steady loads, such as the wind load during production, the soil response will be drained. This paper presents the results from a series of finite element analysis (FEA) on suction caissons in cohesionless soil. The analyses are performed on suction caissons with different dimensions and different soil conditions. For normalization, dimensional analyses of the calculated results are performed to create dimensionless groups. The dimensionless groups are used to establish a relation between the normalized tensile capacity and the interface strength. This relation is used to establish two formulations of the drained tensile capacity for suction caissons in cohesionless soils. One for associated plasticity and one for non-associated plasticity with the dilatation angle equal zero.
Finite element modeling of the tensile capacity of suction caissons in cohesionless soil
Graphical abstract Display Omitted
Abstract When suction caissons are used as foundations for jacket structures, the caissons are exposed to significant vertical loads. If the self-weight of the structure is relatively low, a large horizontal load may lead to tension on the foundation on the incoming side. For steady loads, such as the wind load during production, the soil response will be drained. This paper presents the results from a series of finite element analysis (FEA) on suction caissons in cohesionless soil. The analyses are performed on suction caissons with different dimensions and different soil conditions. For normalization, dimensional analyses of the calculated results are performed to create dimensionless groups. The dimensionless groups are used to establish a relation between the normalized tensile capacity and the interface strength. This relation is used to establish two formulations of the drained tensile capacity for suction caissons in cohesionless soils. One for associated plasticity and one for non-associated plasticity with the dilatation angle equal zero.
Finite element modeling of the tensile capacity of suction caissons in cohesionless soil
Nielsen, Søren Dam (author)
2019-07-03
Article (Journal)
Electronic Resource
English
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