Abstract
Centrifuge model tests of buried flexible pipes in dry sand subjected to surface traffic loads are presented. Model pipe tests were performed at 25 gravities (25g) of a prototype pipe 355mm in diameter. Pipe behaviour was observed for different burial depths of 0.5, 0.75, 1.0 and 1.5 m; and load eccentricities of 1 and 2 pipe diameters. Results show that pipes buried at shallower depths are subjected to significantly greater bending moments and corresponding shear stresses. When the load is applied at an eccentricity, if the pipe remains within the zone of stress influence, a comparable magnitude of maximum moment is anticipated. An initial series of 20 cycles were also carried out. Results indicate an amount of ‘locked-in’ bending moment upon unload; a phenomenon more evident for the shallower buried pipe.
| Original language | English |
|---|---|
| Title of host publication | Physical modelling in geotechnics: proceedings of the 9th international conference on physical modelling in geotechnics (ICPMG 2018) |
| Editors | Andrew McNamara, Sam Divall, Richard Goodey, Neil Taylor, Sarah Stallebrass, Jignasha Panchal |
| Publisher | CRC Press / Balkema |
| Chapter | 17 |
| Pages | 163-168 |
| Number of pages | 6 |
| Volume | 1 |
| ISBN (Electronic) | 9780429438660 |
| ISBN (Print) | 9781138559752 |
| DOIs | |
| Publication status | Published - 03 Jul 2018 |
| Externally published | Yes |
| Event | 9th International Conference on Physical Modelling in Geotechnics, ICPMG 2018 - London, United Kingdom Duration: 17 Jul 2018 → 20 Jul 2018 |
Publication series
| Name | Proceedings of the International Conference on Physical Modelling in Geotechnics |
|---|
Conference
| Conference | 9th International Conference on Physical Modelling in Geotechnics, ICPMG 2018 |
|---|---|
| Country/Territory | United Kingdom |
| City | London |
| Period | 17/07/2018 → 20/07/2018 |
Bibliographical note
Funding Information:Funding support provided by the Engineering Physical Sciences Research Council (EPSRC) to establish the 4m diameter beam centrifuge and Centre for Energy and Infrastructure Ground Research at the University of Sheffield (Grant No. EP/K040316/1) is gratefully acknowledged. Thanks also to the support and expertise of the Department of Civil & Structural Engineering technical staff for in-house fabrication of the pipe and loading systems.
Funding Information:
Funding support provided by the Engineering Physical Sciences Research Council (EPSRC) to establish the 4 m diameter beam centrifuge and Centre for Energy and Infrastructure Ground Research at the University of Sheffield (Grant No. EP/K040316/1) is gratefully acknowledged.
Publisher Copyright:
© 2018 Taylor & Francis Group, London.
ASJC Scopus subject areas
- Geotechnical Engineering and Engineering Geology