Abstract
Most analytical approaches for the design of shallow plate and screw anchors in tension are based on the limit equilibrium of a rigid soil wedge for which a horizontal stress distribution acting on the failure plane is assumed. Finite element analysis for a wide range of soil properties was carried out to identify the shape of the failure mechanism and to study the stress distribution at failure. Results show that soil deformation modifies the stress field around the anchor and increases the uplift capacity. A semi-analytical approach is proposed to describe this stress distribution, based on peak friction angle.
| Original language | English |
|---|---|
| Pages (from-to) | 34-45 |
| Number of pages | 12 |
| Journal | Computers and Geotechnics |
| Volume | 109 |
| Early online date | 24 Jan 2019 |
| DOIs | |
| Publication status | Published - May 2019 |
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Keywords
- Anchors
- Design
- Failure mechanism
- Finite element analysis
- Sand
Cite this
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Effect of soil deformability on the failure mechanism of shallow plate or screw anchors in sand. / Cerfontaine, Benjamin (Lead / Corresponding author); Knappett, Jonathan; Brown, Michael; Bradsaw, Aaron S.
In: Computers and Geotechnics, Vol. 109, 05.2019, p. 34-45.Research output: Contribution to journal › Article
TY - JOUR
T1 - Effect of soil deformability on the failure mechanism of shallow plate or screw anchors in sand
AU - Cerfontaine, Benjamin
AU - Knappett, Jonathan
AU - Brown, Michael
AU - Bradsaw, Aaron S.
N1 - Funding: EU H2020 Marie SkŁodowska-Curie Actions Individual Fellowships SAFS – Development of Screw Anchors for Floating marine renewable energy System arrays incorporating anchor sharing. H2020-MSCA-IF-2016, Grant no. 753156 (08/17-07/19).
PY - 2019/5
Y1 - 2019/5
N2 - Most analytical approaches for the design of shallow plate and screw anchors in tension are based on the limit equilibrium of a rigid soil wedge for which a horizontal stress distribution acting on the failure plane is assumed. Finite element analysis for a wide range of soil properties was carried out to identify the shape of the failure mechanism and to study the stress distribution at failure. Results show that soil deformation modifies the stress field around the anchor and increases the uplift capacity. A semi-analytical approach is proposed to describe this stress distribution, based on peak friction angle.
AB - Most analytical approaches for the design of shallow plate and screw anchors in tension are based on the limit equilibrium of a rigid soil wedge for which a horizontal stress distribution acting on the failure plane is assumed. Finite element analysis for a wide range of soil properties was carried out to identify the shape of the failure mechanism and to study the stress distribution at failure. Results show that soil deformation modifies the stress field around the anchor and increases the uplift capacity. A semi-analytical approach is proposed to describe this stress distribution, based on peak friction angle.
KW - Anchors
KW - Design
KW - Failure mechanism
KW - Finite element analysis
KW - Sand
UR - http://www.scopus.com/inward/record.url?scp=85060345808&partnerID=8YFLogxK
U2 - 10.1016/j.compgeo.2019.01.007
DO - 10.1016/j.compgeo.2019.01.007
M3 - Article
AN - SCOPUS:85060345808
VL - 109
SP - 34
EP - 45
JO - Computers and Geotechnics
JF - Computers and Geotechnics
SN - 0266-352X
ER -