Méthodes de reconnaissance croisées pour l'analyse de stabilité des digues soumises a erosion interne

• Autorzy: Monnet J. , Plotto P.
• Konferencja: Proceedings of the 14th French-Polish Colloguium "Soli and Rock Mechanics. soil Mechanics - Geomaterials" Grenoble, August 29-31, 2007
• Języki publikacji: FR

Abstrakty

EN

The sections of dam around Grenoble are the subject of a geotechnical campaign based on the use of a geophysical method, the electrical panel. Practice shows that the detection of the seepage, heterogeneities, the geometry, the nature of the layers obtained by the electric analysis is not always in conformity with an objective reality, but that the method of inversion leads to an uncertainty which can be important. Research allows us to reduce the errors of this method by taking into account of the geometries when they are known. Pressuremeter tests with cycle were carried out and interpreted in inverse analysis to determine the mechanical characteristics of elasticity and resistance with the methods developed with the L3S-R. Lefranc tests, for the determination of the permeability of materials of the dam, were also carried out. The results are gathered and compared with measurements in laboratory for a better analysis of the risk of instability.

Słowa kluczowe

EN

geotechnical campaign based; layers obtained; geophysical methods

• Wydawca: De Gruyter
• Czasopismo: Studia Geotechnica et Mechanica
• Rocznik: 2008
• Tom: Vol. 30, nr 1-2
• Strony: 21--30
• Opis fizyczny: Bibliogr. 5 poz.,

Twórcy

autor

Monnet J.

autor

Plotto P.

• Université Joseph Fourier - L3S-R, Domaine Universitaire, BP no 53, 38041, Grenoble, Cedex 9, France

Bibliografia

• [1] ALLAGNAT D., MONNET J., TESTON J., BILLET P., BAGUELIN F., Dimensionnement de la fondation d’un grand viaduc en arc, Revue Européenne de Génie Civil, 2005, n° 9–10, 1131–1150.
• [2] IREX, Revue Bibliographique sur l’Erosion Interne, Colloque Aussois, 2005.
• [3] MONNET J., ALLAGNAT D., Design of a large retaining structure with pressuremeter analysis, Proceeding of the Institution of the Civil Engineers – Geotechnical Engineering, London, 2002, GT155, Issue 01, 71–78.
• [4] MONNET J., ALLAGNAT D., TESTON J., BILLET P., BAGUELIN F., The foundation of the Crozet bridge. A case study, Studia Geotechnica et Mechanica, 2005, Vol. XXVII, No. 1–2, 125–142.
• [5] MONNET J., ALLAGNAT D., TESTON J., BILLET P., BAGUELIN F., Foundation design for a large arch bridge on alluvial soils, Proceeding of the Institution of the Civil Engineers – Geotechnical Engineering, London, 2005, Vol. 159, No. 1, 19–28.