DBPapers
DOI: 10.5593/SGEM2014/B12/S2.002

A COMPARATIVE STUDY OF THE FAILURE MODE OF CONVENTIONAL ROAD STRUCTURES AND OF ROAD STRUCTURES REINFORCED WITH POLYPROPYLENE RECTANGULAR MESH GEOGRIDS

D.V. Moldovan, C.A.C Nagy, L.E. Muntean , V.S. Farcas, R.V. Cot
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-08-7 / ISSN 1314-2704, June 19-25, 2014, Book 1, Vol. 2, 11-16 pp

ABSTRACT
As a member of the European Union, Romania benefits from the allocation of nonreimbursable structural funds to rehabilitate and modernize the present county roads network. Among the most important criteria to be considered in the design stage there are included the strength and resistance in time of the design solutions. It one takes into account the exponential increase of the number of vehicles and of the axle load, then it is necessary to fulfill the requirement to build modern, high performance and ecological structures first studied in laboratory at a natural scale (1:1). This article presents comparatively the behavior of two road structures built in the laboratory and highlights the grids contribution to bearing capacity and the manner in which the structure fails as well as the causes that lead to the collapse of the structure. The results were compared to data supplied by the model analysis with the finite elements method (FEM).

Keywords:geogrids, propylene, collapse, road structures, FEM