| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Mylonakis, George
University of Bristol
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2024Similarity based nonlinear settlement predictions of circular surface footings on clay
- 2023"p-y" curves for piles in radially inhomogeneous soil
- 2022A simplified analytical model for developing “t-z” curves for axially loaded piles
- 2022Axial shear friction of polypropylene pipes against granular beds
- 2021Relationship between texture of polypropylene coatings and interface friction for sand at low stress levelscitations
- 2021Relationship between texture of polypropylene coatings and interface friction for sand at low stress levelscitations
- 2021Effects of Soil-Wall Separation on Static Earth Pressures
- 2019Cyclic polypropylene pipeline coating interface strength with granular materials at low stress
- 2019Cyclic polypropylene pipeline coating interface strength with granular materials at low stress
- 2019An analytical continuum model for axially loaded end-bearing piles in inhomogeneous soilcitations
- 2018Strain and strain rate effects on the rocking response of footing subjected to machine vibrations
- 2017Approximate solution for seismic earth pressures on rigid walls retaining inhomogeneous elastic soilcitations
- 2016Soil reaction to lateral harmonic pile motioncitations
- 2015Characterisation of shear wave velocity profiles of non-uniform bi-layer soil deposits:Analytical evaluation and experimental validationcitations
- 2015Characterisation of shear wave velocity profiles of non-uniform bi-layer soil depositscitations
- 2015Torsional vibrations of a column of fine-grained materialcitations
- 20131D harmonic response of layered inhomogeneous soilcitations
- 2011Wave dispersion studies in dry granular materials by the distinct element method
Places of action
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article
Relationship between texture of polypropylene coatings and interface friction for sand at low stress levels
Abstract
<p>Pipelines in the offshore sector make common use of polypropylene (and other polymer) coating systems to protect the infrastructure and provide thermal insulation. High pressure high temperature pipelines are subject to large axial loads due to restraint by seafloor soils of thermal strains in the pipe wall. Friction between pipe coating material and seafloor soil plays a defining role in the build-up of axial stress and the formation of lateral buckling. Accurate quantification of pipe–soil interface friction is key to robust pipeline stability design and possibilities to enhance or manipulate the friction coefficient may be attractive to designers. An extensive campaign of soil and interface tests using a range of granular materials and polypropylene surface specimens engineered to achieve varying surface textures was carried out. The results show that interface friction primarily depends on stress level and the magnitude of the surface texture in relation to the particle size. Herein, a new relative texture parameter, T<sub>a</sub>, is developed that, unlike alternative relative roughness parameters, can be obtained using conventional profilome-try measurement techniques. An expression for estimating the friction coefficient in relation to texture and stress level is proposed that can serve as a useful predictor of pipe–soil interface friction.</p>