Using discrete element method (DEM) to create a cone penetration test (CPT)-based method to estimate the installation requirements of rotary-installed piles in sand

Yaseen Sharif; Michael Brown; Matteo Ciantia; Benjamin Cerfontaine; Craig Davidson; Jonathan Knappett; Gerrit Meijer; Jonathan David Ball

doi:10.1139/cgj-2020-0017

Using discrete element method (DEM) to create a cone penetration test (CPT)-based method to estimate the installation requirements of rotary-installed piles in sand

Yaseen Sharif (Lead / Corresponding author), Michael Brown, Matteo Ciantia, Benjamin Cerfontaine, Craig Davidson, Jonathan Knappett, Gerrit Meijer, Jonathan David Ball

Civil Engineering

Research output: Contribution to journal › Article › peer-review

22 Citations (Scopus)

540 Downloads (Pure)

Abstract

Deep foundations may be used in a range of soil types where significant foundation resistance is required, but their installation is often associated with disturbance due to noise and vibration. Greater restrictions on use in urban and offshore environments is now commonplace. Screw piles and rotary-jacked straight-shafted piles are two potential methods of silent piling that could be used as alternative foundation solutions, but the effects of certain geometric and installation properties such as installation pitch, i.e., the ratio between vertical displacement and rotation, on the required installation torque and force in sand are not well understood. In this paper, the effects of installation pitch and base geometry on the installation requirements of a straight-shafted pile are simulated in three dimensions using the discrete element method (DEM). The installation requirements of straight-shafted piles into sand have been validated against centrifuge testing in three different relative densities. The DEM shows reductions in installation force can be achieved by increasing the installation pitch or including a conical tip. An existing cone penetration test (CPT)-based prediction method for installation requirements has been improved to include the effects of installation pitch and base geometry for rotary-installed piles in sand.

Original language	English
Pages (from-to)	919-935
Number of pages	17
Journal	Canadian Geotechnical Journal
Volume	58
Issue number	7
Early online date	19 Aug 2020
DOIs	https://doi.org/10.1139/cgj-2020-0017
Publication status	Published - Jul 2021

Keywords

Cone penetration test (CPT)
Discrete element method (DEM)
Installation requirements
Rotary installation
Silent piling

ASJC Scopus subject areas

Civil and Structural Engineering
Geotechnical Engineering and Engineering Geology

Access to Document

10.1139/cgj-2020-0017

Author Accepted ManuscriptAccepted author manuscript, 2.62 MB

Cite this

@article{f58a8444dc16480ea999c3ca7daa02b4,

title = "Using discrete element method (DEM) to create a cone penetration test (CPT)-based method to estimate the installation requirements of rotary-installed piles in sand",

abstract = "Deep foundations may be used in a range of soil types where significant foundation resistance is required, but their installation is often associated with disturbance due to noise and vibration. Greater restrictions on use in urban and offshore environments is now commonplace. Screw piles and rotary-jacked straight-shafted piles are two potential methods of silent piling that could be used as alternative foundation solutions, but the effects of certain geometric and installation properties such as installation pitch, i.e., the ratio between vertical displacement and rotation, on the required installation torque and force in sand are not well understood. In this paper, the effects of installation pitch and base geometry on the installation requirements of a straight-shafted pile are simulated in three dimensions using the discrete element method (DEM). The installation requirements of straight-shafted piles into sand have been validated against centrifuge testing in three different relative densities. The DEM shows reductions in installation force can be achieved by increasing the installation pitch or including a conical tip. An existing cone penetration test (CPT)-based prediction method for installation requirements has been improved to include the effects of installation pitch and base geometry for rotary-installed piles in sand.",

keywords = "Cone penetration test (CPT), Discrete element method (DEM), Installation requirements, Rotary installation, Silent piling",

author = "Yaseen Sharif and Michael Brown and Matteo Ciantia and Benjamin Cerfontaine and Craig Davidson and Jonathan Knappett and Gerrit Meijer and Ball, {Jonathan David}",

note = "Funding Information: This research is a part of an EPSRC NPIF funded studentship with Roger Bullivant Limited. The fourth author is supported by the European Union?s Horizon 2020 research and innovation programme under the Marie Sk?odowska?Curie grant agreement No. 753156. The authors would also like to acknowledge the support of EPSRC (Grant No. EP/N006054/1: Supergen Wind Hub: Grand Challenges Project: Screw piles for wind energy foundations). Funding Information: This research is a part of an EPSRC NPIF funded studentship with Roger Bullivant Limited. The fourth author is supported by the European Union{\textquoteright}s Horizon 2020 research and innovation programme under the Marie Sk{\l}odowska–Curie grant agreement No. 753156. The authors would also like to acknowledge the support of EPSRC (Grant No. EP/N006054/1: Supergen Wind Hub: Grand Challenges Project: Screw piles for wind energy foundations). Publisher Copyright: {\textcopyright} Canadian Science Publishing. All rights reserved.",

year = "2021",

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language = "English",

volume = "58",

pages = "919--935",

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Using discrete element method (DEM) to create a cone penetration test (CPT)-based method to estimate the installation requirements of rotary-installed piles in sand. / Sharif, Yaseen (Lead / Corresponding author); Brown, Michael ; Ciantia, Matteo et al.
In: Canadian Geotechnical Journal, Vol. 58, No. 7, 07.2021, p. 919-935.

Research output: Contribution to journal › Article › peer-review

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AU - Sharif, Yaseen

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AU - Ciantia, Matteo

AU - Cerfontaine, Benjamin

AU - Davidson, Craig

AU - Knappett, Jonathan

AU - Meijer, Gerrit

AU - Ball, Jonathan David

N1 - Funding Information: This research is a part of an EPSRC NPIF funded studentship with Roger Bullivant Limited. The fourth author is supported by the European Union?s Horizon 2020 research and innovation programme under the Marie Sk?odowska?Curie grant agreement No. 753156. The authors would also like to acknowledge the support of EPSRC (Grant No. EP/N006054/1: Supergen Wind Hub: Grand Challenges Project: Screw piles for wind energy foundations). Funding Information: This research is a part of an EPSRC NPIF funded studentship with Roger Bullivant Limited. The fourth author is supported by the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska–Curie grant agreement No. 753156. The authors would also like to acknowledge the support of EPSRC (Grant No. EP/N006054/1: Supergen Wind Hub: Grand Challenges Project: Screw piles for wind energy foundations). Publisher Copyright: © Canadian Science Publishing. All rights reserved.

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AB - Deep foundations may be used in a range of soil types where significant foundation resistance is required, but their installation is often associated with disturbance due to noise and vibration. Greater restrictions on use in urban and offshore environments is now commonplace. Screw piles and rotary-jacked straight-shafted piles are two potential methods of silent piling that could be used as alternative foundation solutions, but the effects of certain geometric and installation properties such as installation pitch, i.e., the ratio between vertical displacement and rotation, on the required installation torque and force in sand are not well understood. In this paper, the effects of installation pitch and base geometry on the installation requirements of a straight-shafted pile are simulated in three dimensions using the discrete element method (DEM). The installation requirements of straight-shafted piles into sand have been validated against centrifuge testing in three different relative densities. The DEM shows reductions in installation force can be achieved by increasing the installation pitch or including a conical tip. An existing cone penetration test (CPT)-based prediction method for installation requirements has been improved to include the effects of installation pitch and base geometry for rotary-installed piles in sand.

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KW - Installation requirements

KW - Rotary installation

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Using discrete element method (DEM) to create a cone penetration test (CPT)-based method to estimate the installation requirements of rotary-installed piles in sand

Abstract

Keywords

ASJC Scopus subject areas

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Development of Screw Anchors for Floating Marine Renewable Energy Systems Arrays Incorporating Anchor Sharing (SAFS) (Joint with University of Liege)

Supergen Wind Challenge 2015: Screw Piles for Wind Energy Foundation Systems (Joint with Universities of Durham and Southampton)

3D numerical analysis of screw pile subjected to axial compressive and lateral load

Control of screw pile installation to optimise performance for offshore energy applications

DEM analysis of helix number effects on offshore screw pile installation and in-service performance

The Effects of Rotary Installation on the Axial Capacity of Displacement Piles in Sand

Invited speakers at Geowynd's Bi-weekly internal seminar series- Screw pile groups for floating wind anchoring

Invited speaker, NGI, Norway: Virtual laboratory testing and its applications within offshore wind industry

Keynote presentation: GEOLAB’s Second Next Generation Training Workshop

Best Research Paper Award ICPE2021

Cite this

Using discrete element method (DEM) to create a cone penetration test (CPT)-based method to estimate the installation requirements of rotary-installed piles in sand

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

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Fingerprint

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