Analytical study of the post-closure behaviour of a deep tunnel in a porous creeping rock mass

[en] The deferred behaviour of underground cavities is often encountered in geotechnical engineering. This paper presents an analytical approach for the post-closure behaviour of a deep tunnel inside a rock mass considering both creep and hydromechanical couplings. Creep, supposed slower than hydraulic flow, is described by a linear Norton–Hoff law in the particular case of an elastically incompressible rock mass (i.e. Poisson’s ratio ν = 0.5). The resolution uses Laplace transform and Stehfest’s algorithm. Numerical examples are carried out to enlighten the hydromechanical responses around the tunnel and to show the consistency of the solution.

Disciplines :

Civil engineering

Author, co-author :

Deleruyelle, Frédéric

Bui, Tuan Anh

Wong, Henry

Dufour, Nathalie

Tran, Duc Kien ; Université de Liège - ULiège > Ingénierie des biosystèmes (Biose) > Echanges Eau-Sol-Plantes

Zhang, X.S.

Language :

English

Title :

Analytical study of the post-closure behaviour of a deep tunnel in a porous creeping rock mass

Publication date :

May 2016

Journal title :

Comptes Rendus Mécanique

ISSN :

1631-0721

Publisher :

Elsevier Masson, Paris, France

Peer reviewed :

Peer Reviewed verified by ORBi

Available on ORBi :

since 19 March 2019

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