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A Semi-Analytical Solution for the Analysis of Axially Loaded Pile Groups in Layered Elastic Soil
A semi-analytical solution is presented in this paper for analysis of axially loaded pile groups embedded in multilayered elastic soil profiles. The proposed method links the soil displacement around a pile group to the axial displacement of the piles in the group through displacement decay functions assigned to the piles. The product of the axial displacement of each pile and its associated decay function is then summed up for all piles in the group. Principle of virtual work and calculus of variations are used to derive the governing differential equations that describe the response of the soil and piles. The governing differential equations that predict the response of the piles are solved analytically using the method of eigenvalues and eigenvectors, whereas the differential equations that describe the soil decay functions are solved numerically using the finite-difference method. The method produces displacement fields that are very close to those produced by the finite element method but with less computational effort.
A Semi-Analytical Solution for the Analysis of Axially Loaded Pile Groups in Layered Elastic Soil
A semi-analytical solution is presented in this paper for analysis of axially loaded pile groups embedded in multilayered elastic soil profiles. The proposed method links the soil displacement around a pile group to the axial displacement of the piles in the group through displacement decay functions assigned to the piles. The product of the axial displacement of each pile and its associated decay function is then summed up for all piles in the group. Principle of virtual work and calculus of variations are used to derive the governing differential equations that describe the response of the soil and piles. The governing differential equations that predict the response of the piles are solved analytically using the method of eigenvalues and eigenvectors, whereas the differential equations that describe the soil decay functions are solved numerically using the finite-difference method. The method produces displacement fields that are very close to those produced by the finite element method but with less computational effort.
A Semi-Analytical Solution for the Analysis of Axially Loaded Pile Groups in Layered Elastic Soil
Tehrani, Faraz S. (author) / Salgado, Rodrigo (author) / Prezzi, Monica (author)
Geotechnical Frontiers 2017 ; 2017 ; Orlando, Florida
Geotechnical Frontiers 2017 ; 247-255
2017-03-30
Conference paper
Electronic Resource
English
A Semi-Analytical Solution for the Analysis of Axially Loaded Pile Groups in Layered Elastic Soil
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