Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Three-Dimensional Finite Element Analysis of Sheet-Pile Cellular Cofferdams
The conventional design methods for sheet-pile cellular cofferdams were developed in the 1940's and 1950's based on field and limited experimental observations. The analytical techniques of the day were unable to account for the complexities involved. The procedures used only rudimentary concepts of soil-structure interaction which do not exhibit the true response of the cofferdam for most circumstances. During the past decade it has been demonstrated that with proper consideration of the soil-structure interaction effects, the two-dimensional finite element models can be powerful tools in the investigation of cellular cofferdam behavior. However, universal implementation of the findings of these analyses was difficult to justify, since uncertainties remain about the assumptions made in arriving at the two-dimensional models. The only way to address these uncertainties was to perform a three-dimensional analysis. This investigation has focused on the study of the three-dimensional behavior of Lock and Dam No. 26 (R) sheet-pile cellular cofferdam. The work involved the development of a new three-dimensional soil-structure interaction finite element code for cellular cofferdam modeling, and the application of the new code to the study of the behavior of the first- and second-stage cofferdam at Lock and Dam No. 26 (R). The new code was used to study the cell filing process where the main cell is filled first with the subsequent filling of the arc cell. Non-linear Finite Element Analysis Three-Dimensional Soil-Structure interaction Sheet Pile Cellular Cofferdams Interface Elements.
Three-Dimensional Finite Element Analysis of Sheet-Pile Cellular Cofferdams
The conventional design methods for sheet-pile cellular cofferdams were developed in the 1940's and 1950's based on field and limited experimental observations. The analytical techniques of the day were unable to account for the complexities involved. The procedures used only rudimentary concepts of soil-structure interaction which do not exhibit the true response of the cofferdam for most circumstances. During the past decade it has been demonstrated that with proper consideration of the soil-structure interaction effects, the two-dimensional finite element models can be powerful tools in the investigation of cellular cofferdam behavior. However, universal implementation of the findings of these analyses was difficult to justify, since uncertainties remain about the assumptions made in arriving at the two-dimensional models. The only way to address these uncertainties was to perform a three-dimensional analysis. This investigation has focused on the study of the three-dimensional behavior of Lock and Dam No. 26 (R) sheet-pile cellular cofferdam. The work involved the development of a new three-dimensional soil-structure interaction finite element code for cellular cofferdam modeling, and the application of the new code to the study of the behavior of the first- and second-stage cofferdam at Lock and Dam No. 26 (R). The new code was used to study the cell filing process where the main cell is filled first with the subsequent filling of the arc cell. Non-linear Finite Element Analysis Three-Dimensional Soil-Structure interaction Sheet Pile Cellular Cofferdams Interface Elements.
Three-Dimensional Finite Element Analysis of Sheet-Pile Cellular Cofferdams
R. L. Mosher (Autor:in)
1992
464 pages
Report
Keine Angabe
Englisch
Civil Engineering , Finite element analysis , Soil structure interactions , Structural response , Locks(Waterways) , Pile structures , Behavior , Dams , Deformation , Filling , Interfaces , Models , Response , Rivers , Shear strength , Soils , Stresses , Structures , Three dimensional , Two dimensional , Walls , Loads(Forces) , Failure(Mechanics) , Mechanical properties , Stress analysis , Construction , Channels(Waterways) , Harbors , Bearing strength , Stress strain relations , Cofferdams , Sheet piles , Design criteria , Bearing capacity
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