Development of geodetect: a new warning system for the survey of reinforced earth constructions

• Autorzy: Briancon L. , Nancey A. , Villard P.
• Konferencja: XIII Polish-French Colloquium: Soil and Rock Mechanics in Civil and Environmental Engineering, Wrocław, June 9-10, 2004
• Języki publikacji: EN

Abstrakty

EN

Survey of civil engineering works and reinforced earth structures are more and more necessary either to detect the first sign of degradation before failure or to provide the designers and owners with some information on the behaviour of their buildings. In this context, the program "Geodetect" was launched to develop a warning system based on the optical technology applied in a geosynthetic. The results of the development lead to a reinforcing geosynthetic equipped with optical fibres, offering an accurate measuring system, available for very large areas, easy to install and completed with an analysis device and a warning system which may be adapted to the client's needs. This paper will present the different steps of the validation: tests in laboratory for fine tuning of the system, a full-scale experiment to show the resistance against the damage during installation and the behaviour above a cavity and a finite element modelling.

• Wydawca: De Gruyter
• Czasopismo: Studia Geotechnica et Mechanica
• Rocznik: 2005
• Tom: Vol. 27, nr 1-2
• Strony: 21--32
• Opis fizyczny: Bibliogr. 8 poz., tab., wykr., rys.

Twórcy

autor

Briancon L.

• CNAM Paris, 2 rue Conte 75141 France

autor

Nancey A.

• BIDIM Geosynthetics, 9 rue Marcel Paul – BP 80 95873 Bezons Cedex France

autor

Villard P.

• LIRIGM, 1381 rue de la piscine BP 53 38041 Grenoble Cedex 9, France

Bibliografia

• [1] GIRAUD H., Renforcements des zones d’effondrement localisé – Modélisations physique et numérique, Thèse de l’université Joseph Fourier (Grenoble 1), 1997, France, 291 p.
• [2] VILLARD P., GOURC J.P., GIRAUD H., A geosynthetic reinforcement solution to prevent the formation of localized sinkholes, Canadian Geotechnical Journal, 2000, Vol. 37, No. 5, pp. 987–999.
• [3] BUONANNO A., MONTANELLI F., RIMOLDI P., Instrumental railway embankment reinforced with geogrid-geotextile geocomposite, Proceedings of 2nd Geosynthetics Conference, 2000, Kuala Lumpur, Malaysia, May 29–31, pp. 127–132.
• [4] AST W., HABERLAND J., Reinforced embankment combined with a new developed warning system for high-speed trains over areas of previous mining, Proceedings of 7th International Conference on Geosynthetics, 2002, Nice, France, September 22–27, pp. 335–340.
• [5] LEITNER B., SOBOLEWSKI J., AST W., HANGEN H., A geosynthetic overbridging system in the base of a railway embankment located on an area prone to subsidence at groebers: Construction experience, Proceedings of 7th International Conference on Geosynthetics, 2002, Nice, France, September 22–27, pp. 349–354.
• [6] SIMONIN J.M., Evaluation de systèmes radar pour contrôler l’épaisseur des couches de chaussées, Bulletin des laboratoires des ponts et chaussées, 2002, Vol. 238, pp. 51–59.
• [7] BRIANÇON L., NANCEY A., CAQUEL F., VILLARD P., New technology for strain measurements in soil and the survey of reinforced earth constructions, Proceedings of EUROGEO 3, 2004, March 1–3, Munich, Germany, pp. 471–476.
• [8] VILLARD P., GIRAUD H., Three-dimensional modelling of the behaviour of geotextile sheets as membrane, Textile Research Journal, 1998, Vol. 68, No. 11, pp. 797–806.