Piles and micropiles
A pile is a structural element driven into the soil for transferring loads and prevent deformation. Its slenderness ratio is not limited.
Pile shafts can be uniform and rectilinear, telescopic and belled out.
Piles can be installed either separately or in groups. They can also form a retaining wall, a mixed curtain wall, contiguous piles, secant piles and composite curtain walls, such as Berlin walls and similar. Piles are also used as precast beams to be placed in the structure of the building they support.
There are three main types of piles:
Dsiplacement piles, bored piles and micropiles. Displacement piles are drilled piles and can be either precast or cast-in-place. Soletanche Bachy has developed a cast-in-place rotary displacement pile marketed under the trade-mark SCREWSOL® , which combines enhanced friction capacity with the creation of a thread around the pile casing, that significantly increases pile bore diameter.
Soletanche Bachy has also developed a displacement pile fitted with a telescopic tremie pipe, marketed under the name REFSOL.
Bored tiles are made in many different forms:
- cased piles,
- slurry piles, including barrettes,
- continuous auger piles.
Soletanche Bachy has developed highly-sophisticated machines with excellent productivity for the construction of piles. The machines carry electronic systems to ensure perfect results every time. The STARSOL® process, for example, is fitted with a telescopic tremie pipe and allows the construction of piles down to 32 m, with diameters ranging from 420 mm to 1,200 mm. Boring and concreting are monitored on an ongoing basis.
Micropiles are bored piles with a diameter of under 300 mm and displacement piles with a diameter of under 150 mm.
The pile shafts comprise either steel rods or a steel tube or a an H-type profile.
Work : 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.
Work : BUILDING,URBAN EXCAVATIONS | Year : | Location : FRANCE
Deep foundations works for a household waste treatment plant.
Work : BUILDING,URBAN EXCAVATIONS | Year : 1998-1999 | Location : EGYPT
Retaining wall and foundations for 36-storey property with four basement levels.
Work : BUILDING,URBAN EXCAVATIONS | Year : 2007 | Location : SINGAPORE
Basement retaining walls and foundations for 3 high rise hotels
Work : 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.
Work : URBAN EXCAVATIONS | Year : 2008 | Location : MONACO
Excavation with Berlin-type walls for the construction of 4 residential buildings with 267 parking places.
Work : ROAD STRUCTURES | Year : 2006 | Location : FRANCE
Sensitive geotechnical works for the Grand Boulevard roadway drop.
Work : STORM WATER TANK | Year : 2007 | Location : FRANCE
Construction of a 4,500m³ capacity storm water tank.
Work : MARITIME WORK | Year : 2005-2006 | Location : MOZAMBIQUE
Construction of a 405m long jetty, 16m above sea level.
Work : MARITIME WORK ,REHABILITATION OF STRUCTURES AND UNDERPINNING WORKS | Year : 1998 | Location : FRANCE
Reinforcing a quay wall with reinforced Jet grouting columns (double Jet).
Work : BUILDING,URBAN EXCAVATIONS | Year : 1999-2000 | Location : UNITED KINGDOM
Basement walls and bearing piles for a major commercial development.
Work : MARITIME WORK | Year : 2006-2008 | Location : FRANCE
Widening and modernisation of Dry Dock N°1 at the Brest Port de Commerce.
Work : MARITIME WORK | Year : 2009 | Location : URUGUAY
Constructing an extension to the Cuenca del Plata port terminal as a general contractor
Work : REHABILITATION OF STRUCTURES AND UNDERPINNING WORKS,URBAN EXCAVATIONS | Year : 2006 | Location : FRANCE
Facades underpinning and creating a new excavation within the perimeter of the former Galeries Rémoises.
Work : PLATFORMS | Year : 2005-2007 | Location : MEXICO
Soil improvement and deep foundations works for the construction of an oil refinery.
Work : METROS,RAILWAY WORKS,TUNNELS | Year : 1997 - 1999 | Location : SINGAPORE
Geotechnical works associated with the construction of a major underground station for the Singapore MRT North East Line.
Work : 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.
Work : ROAD STRUCTURES | Year : 1994 | Location : FRANCE
Building round protective excavation structures in order to protect a viaduct pile bedplate-micropile link.
Work : MARITIME WORK | Year : 2005 - 2006 | Location : UNITED ARAB EMIRATES
The Dubai Drydocks naval shipyard has extended its capacities by commissioning a hydrolift for the construction and repair of floating equipment. This structure was entirely completed by Soletanche Bachy acting as the main contractor under a design and build contract.
Work : BUILDING,URBAN EXCAVATIONS | Year : 2005 | Location : MONACO
The construction of retaining walls 38m high in a cliff and earthworks tunneled with explosives.
Work : BUILDING,URBAN EXCAVATIONS | Year : 2003-2005 | Location : UKRAINE
Foundations and structural work for a tower with 31 floors and four basement levels.
Work : RAILWAY WORKS | Year : 2008-2009 | Location : SOUTH AFRICA
Large diameter piles in dolomite for the foundations of a railway viaduct.
Work : METROS,RAILWAY WORKS,SHAFTS | Year : 1997 - 2000 | Location : THAILAND
Construction of nine stations and associated works for Bangkok's first underground railway line.
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