Particle shape effect on macroscopic behaviour of underground structures: numerical and experimental study

• Autorzy: Szarf K. , Combe G. , Villard P.

Identyfikatory

DOI

10.2478/sgem-2014-0028

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

discrete element method; particle shape; underground pipe; digital image correlation

• Wydawca: De Gruyter
• Czasopismo: Studia Geotechnica et Mechanica
• Rocznik: 2014
• Tom: Vol. 36, nr 3
• Strony: 67--74
• Opis fizyczny: Bibliogr. 14 poz., tab., rys.

Twórcy

autor

Szarf K.

• Faculty of Civil and Environmental Engineering, Gdańsk University of Technology, Gdańsk, Poland

autor

Combe G.

• Laboratoire 3SR, Université de Grenoble/CNRS, Grenoble, France

autor

Villard P.

• Laboratoire 3SR, Université de Grenoble/CNRS, Grenoble, France

Bibliografia

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