Particle Shape Effect on Macroscopic Behaviour of Underground Structures: Numerical and Experimental Study

Krzysztof Szarf; Gaël Combe; Pascal Villard

doi:10.2478/sgem-2014-0028

Particle Shape Effect on Macroscopic Behaviour of Underground Structures: Numerical and Experimental Study

Abstract

Abstract: The mechanical performance of underground flexible structures such as buried pipes or culverts made of plastics depend not only on the properties of the structure, but also on the material surrounding it. Flexible drains can deflect by 30% with the joints staying tight, or even invert. Large deformations of the structure are difficult to model in the framework of Finite Element Method, but straightforward in Discrete Element Methods. Moreover, Discrete Element approach is able to provide information about the grain–grain and grain–structure interactions at the microscale. This paper presents numerical and experimental investigations of flexible buried pipe behaviour with focus placed on load transfer above the buried structure. Numerical modeling was able to reproduce the experimental results. Load repartition was observed, being affected by a number of factors such as particle shape, pipe friction and pipe stiffness.

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Authors (3)

Krzysztof Szarf dr inż.
Gaël Combe
- Laboratoire 3S-R: Sols, Solides, Structures-Risques .
Pascal Villard
- Laboratoire 3S-R: Sols, Solides, Structures-Risques .

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DOI:: Digital Object Identifier (open in new tab) 10.2478/sgem-2014-0028
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Details

Category:: Articles
Type:: artykuły w czasopismach recenzowanych i innych wydawnictwach ciągłych
Published in:: Studia Geotechnica et Mechanica no. XXXVI, pages 67 - 74,
ISSN: 0137-6365
Language:: English
Publication year:: 2014
Bibliographic description:: Szarf K., Combe G., Villard P.: Particle Shape Effect on Macroscopic Behaviour of Underground Structures: Numerical and Experimental Study// Studia Geotechnica et Mechanica. -Vol. XXXVI., nr. 3 (2014), s.67-74
DOI:: Digital Object Identifier (open in new tab) 10.2478/sgem-2014-0028
Verified by:: Gdańsk University of Technology