Techniques
Retaining structures
A retaining shell is a slim shell structure used during vertical excavations. Unlike retaining walls, the weight of a retaining shell has little effect on its capacity to balance the pressures.
Retaining structures include
- continuous walls: diaphragm wall, precast wall, sheet-piling curtain, slurry cut-off wall, secant piles, etc.
- discontinuous walls: Berlinese wall, Parisian wall, Lutitian-type wall, Moscow-type wall, etc.
Réalisations
Voie des Mercureaux - Head of Bois du Peu TunnelWork : ROAD STRUCTURES,TUNNELS | Year : 2004 | Location : FRANCE
Anchored walls to reinforce side embankments and portals of a double-tube tunnel head.
Axe Littoral - Geomix retaining wallWork : ROAD STRUCTURES | Year : 2009 | Location : FRANCE
Construction of a Geomix retaining wall to allow the deviation of a sewer.
Climespace Refrigerating PlantWork : REHABILITATION OF STRUCTURES AND UNDERPINNING WORKS,URBAN EXCAVATIONS | Year : 2005 | Location : FRANCE
Special foundations for the construction of a refrigeration plant under the Palais de Tokyo in Paris.
M'BopicuaWork : MARITIME WORK | Year : 2002 - 2003 | Location : URUGUAY
Turnkey design and build contract for a port logistics terminal.
Marché Neuf car parkWork : UNDERGROUND CAR PARKS ,URBAN EXCAVATIONS | Year : 2005-2007 | Location : FRANCE
Acting as the main contractor for the construction of an underground car park in Saint-Germain-en-Laye
Bourg - Bellegarde line - Contract 1Work : RAILWAY WORKS,TUNNELS | Year : 2008 | Location : FRANCE
Upgrade of tunnels, creation of an underpass, construction of a bridge and other civil engineering works to modernize a railway.
Industria MinerveWork : URBAN EXCAVATIONS | Year : 2008 | Location : MONACO
Excavation with Berlin-type walls for the construction of 4 residential buildings with 267 parking places.
Tihange Nuclear Power Station Work : TUNNELS | Year : 1988 1989 | Location : BELGIUM
Installing four water inlet and outlet ducts under a nuclear plant cooling canal.
T 33 TunnelWork : ROAD STRUCTURES,TUNNELS | Year : 2005-2006 | Location : MONACO
Road tunnel excavated through rock, 55 to 85 m² excavated section
Concarneau dry dockWork : MARITIME WORK | Year : 2001 | Location : FRANCE
Design and construction as main contractor of dry dock, length 130m, width 27m, depth 10.80m.
Canary Wharf Heron QuayWork : BUILDING,URBAN EXCAVATIONS | Year : 1999-2000 | Location : UNITED KINGDOM
Basement walls and bearing piles for a major commercial development.
Larvotto hotel complexWork : BUILDING,URBAN EXCAVATIONS | Year : 2003 | Location : MONACO
Deep foundations constructed on a quay reclaimed from the sea which comprised loosely placed larger rock ballast to form the embankment.
Boulogne-Billancourt - Rehabilitation of the Trapèze East groundWork : ENVIRONMENT | Year : 2007-2008 | Location : FRANCE
Cleaning up works on a part of a former automotive factory
Monacan institute of sports medicineWork : BUILDING,URBAN EXCAVATIONS | Year : 2005 | Location : MONACO
The construction of retaining walls 38m high in a cliff and earthworks tunneled with explosives.
Voyage au coeur de l'ingénierie de pointe
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