American Society of Civil Engineers


Analysis of a Deep Shaft Excavation in Argillaceous Rock


by A. Gens, (Department of Geotechnical Engineering and Geosciences, Universitat Politècnica de Catalunya, Jordi Girona 1–3, 08034 Barcelona, Spain E-mail: jean.vaunat@upc.edu), B. Garitte, (CIMNE, Gran Capità s/n, Edifici C-1, 08034 Barcelona, Spain E-mail: benoit.garitte@upc.edu), and J. Vaunat, (Department of Geotechnical Engineering and Geosciences, Universitat Politècnica de Catalunya, Jordi Girona 1–3, 08034 Barcelona, Spain E-mail: jean.vaunat@upc.edu)
Section: Foundation Engineering Design Problems, pp. 1470-1478, (doi:  http://dx.doi.org/10.1061/41095(365)148)

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Document type: Conference Proceeding Paper
Part of: GeoFlorida 2010: Advances in Analysis, Modeling & Design
Abstract: The paper presents a coupled hydro-mechanical (HM) numerical analysis simulating an in situ test involving an excavation in argillaceous rocks. The test has been performed in the Meuse/Haute Marne laboratory of Eastern France, sited in a thick stratum of Callovo-Oxfordian mudstone. A specially developed numerical formulation and constitutive model have been used. The results of the analyses concerning displacements, pore pressures, damage and permeability variations are compared with observations. A satisfactory reproduction of the most relevant behaviour is achieved.


ASCE Subject Headings:
Excavation
Deep foundations
Rocks
Numerical analysis