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Numerically modelling the installation and loading of screw piles using dem

Numerically modelling the installation and loading of screw piles using dem
Numerically modelling the installation and loading of screw piles using dem
In this paper a new numerical modelling technique for simulating the installation and loading of screw piles is described. The method uses the discrete element method (DEM) and in a single model is able to assess the installation requirements as well as the ultimate tensile and compressive capacity. Numerical modelling of screw piles has traditionally been conducted using finite element analysis (FEA), in which piles are wished in place into a soil body consisting of a meshed continuum. Although this has provided many insights into the capacity of screw piles and the mechanisms that form when they are loaded, they do not usually consider the effects of installation on the behaviour of the soil. Using 3D DEM calibrated against element tests and geotechnical centrifuge tests, it is now possible to assess the local changes in density and stress caused during the installation process and what effects this has on the capacity of screw piles.
Screw piles, DEM analysis, installation effects
101-108
Brown, Michael
bf3e2aa7-4eb2-4223-b1f2-83d0cf5f7815
Sharif, Yaseen
f8ed0802-9644-479f-b288-77dec7624aa8
Ciantia, Matteo
a96c5e90-142b-4dae-9369-4c6c54d130d0
Knappett, Jonathan
cda30027-553d-4310-8a05-e48d8989a545
Davidson, Craig
972704f2-5a32-4469-ad4f-358c60ef8de2
Cerfontaine, Benjamin
0730daf4-9d6b-4f2d-a848-a3fc54505a02
Robinson, Scott
240fda16-6d00-4909-abc0-ae0061afca8b
Brown, Michael
bf3e2aa7-4eb2-4223-b1f2-83d0cf5f7815
Sharif, Yaseen
f8ed0802-9644-479f-b288-77dec7624aa8
Ciantia, Matteo
a96c5e90-142b-4dae-9369-4c6c54d130d0
Knappett, Jonathan
cda30027-553d-4310-8a05-e48d8989a545
Davidson, Craig
972704f2-5a32-4469-ad4f-358c60ef8de2
Cerfontaine, Benjamin
0730daf4-9d6b-4f2d-a848-a3fc54505a02
Robinson, Scott
240fda16-6d00-4909-abc0-ae0061afca8b

Brown, Michael, Sharif, Yaseen, Ciantia, Matteo, Knappett, Jonathan, Davidson, Craig, Cerfontaine, Benjamin and Robinson, Scott (2019) Numerically modelling the installation and loading of screw piles using dem. In 1st International Symposium on Screw Piles for Energy Applications. pp. 101-108 .

Record type: Conference or Workshop Item (Paper)

Abstract

In this paper a new numerical modelling technique for simulating the installation and loading of screw piles is described. The method uses the discrete element method (DEM) and in a single model is able to assess the installation requirements as well as the ultimate tensile and compressive capacity. Numerical modelling of screw piles has traditionally been conducted using finite element analysis (FEA), in which piles are wished in place into a soil body consisting of a meshed continuum. Although this has provided many insights into the capacity of screw piles and the mechanisms that form when they are loaded, they do not usually consider the effects of installation on the behaviour of the soil. Using 3D DEM calibrated against element tests and geotechnical centrifuge tests, it is now possible to assess the local changes in density and stress caused during the installation process and what effects this has on the capacity of screw piles.

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More information

Published date: 27 May 2019
Keywords: Screw piles, DEM analysis, installation effects

Identifiers

Local EPrints ID: 444211
URI: http://eprints.soton.ac.uk/id/eprint/444211
PURE UUID: f606efc2-c6e4-40dd-a84a-762018d38818
ORCID for Benjamin Cerfontaine: ORCID iD orcid.org/0000-0002-4833-9412

Catalogue record

Date deposited: 01 Oct 2020 16:34
Last modified: 02 Oct 2020 01:53

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Contributors

Author: Michael Brown
Author: Yaseen Sharif
Author: Matteo Ciantia
Author: Jonathan Knappett
Author: Craig Davidson
Author: Scott Robinson

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