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

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 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 affected by 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 3SR, Université de Grenoble/CNRS, Grenoble, France .
Pascal Villard
- Laboratoire 3SR, Université de Grenoble/CNRS, Grenoble, France .

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Category:: Conference activity
Type:: publikacja w wydawnictwie zbiorowym recenzowanym (także w materiałach konferencyjnych)
Title of issue:: XVI French-Polish Colloquium of Soil and Rock Mechanics strony 1 - 10
Language:: English
Publication year:: 2013
Bibliographic description:: Szarf K., Combe G., Villard P.: Particle Shape Effect on Macroscopic Behaviour of Underground Structures: Numerical and Experimental Study// XVI French-Polish Colloquium of Soil and Rock Mechanics/ : , 2013, s.1-10
DOI:: Digital Object Identifier (open in new tab) 10.2478/sgem-2014-0028
Verified by:: Gdańsk University of Technology