Titre du document / Document title

Geologische Risiken beim Bau der Basistunnels Gotthard und Lötschberg : Beurteilung im Rahmen der Vorprojektes = Geological hazards during the Gotthard base-tunnel construction and analysis of the Lötschberg framework of the project

Auteur(s) / Author(s)

GRAF K. ; HEITZMANN P. ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

Sekretariat Fachkomission Geologie Alpentransversalen, Landeshydrologie geologie, 3003 Bern, SUISSE

Résumé / Abstract

A precise forecast of the geological conditions along the axes of the base-tunnels is crucial for the planning and realization of the AlpTransit project. In respect to lenght and overburden of the tunnels, civil engineers will have to go beyond currently established technology. Apart from the expected high temperatures and pressures and known difficulties like karst-zones with high water discharge and potentially gas-bearing as well as weak rock-formations, the Gotthard base-tunnel will have to cross tectonic units, that will allow tunneling only by extensive use of special civil-engineering technology. The Federal Department of Transportation, Communication and Energy (EVED) has installed an expert-board of earth-scientists (FKGA) to control the concepts and reports of the consulting geologists on behalf of the Federal Office of Transportation (BAV).

Revue / Journal Title

Bulletin der Vereinigung Schweizerischer Petroleum-Geologen und -Ingenieure   ISSN 0366-4848   CODEN BUVSA6 

Source / Source

1995, vol. 62, n^o140, pp. 69-75 (7 ref.)

Langue / Language

Allemand

Editeur / Publisher

Ruggli, Zürich, SUISSE  (1926-1995) (Revue)

Mots-clés anglais / English Keywords

Engineering geology ; Tunnels ; Alps ; Switzerland ; Project ; Civil engineering ; Technology ; Karst ; Groundwater ; Basement ; Crystalline rocks ; Geological section ; Europe ;

Mots-clés français / French Keywords

Géotechnique ; Tunnel ; Alpes ; Suisse ; Projet ; Génie civil ; Technologie ; Karst ; Eau souterraine ; Socle ; Roche cristalline ; Coupe géologique ; Massif Gotthard ; Europe ;

Mots-clés espagnols / Spanish Keywords

Alpes ; Suiza ; Proyecto ; Karst ; Basamento ; Corte geológico ; Europa ;

Localisation / Location

INIST-CNRS, Cote INIST : 4614, 35400005452991.0040