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The BAUER Ductile Pile is a fast, simple and highly effective foundation system. For the purpose of load transfer ductile cast iron tubes are driven into the ground with high frequency hydraulic hammers. This system can support loads from all kinds of superstructures.
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An MV-pile is a steel profile that is driven into the ground with a grout injection. The grout ensures that the pile 'cements itself tight' into the ground after which, for example, they can be attached to a combi-wall so that the full wall can absorb the tensile force. During driving a hollow space is created above the foot of the MV-pile which is injected from below with cement mortar, fine concrete or other self-hardening materials (during driving) using a high pressure lance.
MV-piles serve as anchors in both the horizontal and vertical directions. For horizontal anchoring the piles are driven into the ground at an angle and this way function as compression or traction elements. They are often used for quay walls. As vertical anchoring they are used as an alternative to vibro combi-piles.
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Steel tube piles are used for many different purposes, both on land and on the water. Examples are mooring posts and hawser posts for mooring ships and also as foundations for wind turbines, crane gantries and quay structures.
Mono piles (3.50 metre diameter) were installed on the dike at the Lelystad wind turbine farm. The original proposal to use a number of piles for the foundation was replaced by the mono-pile concept, developed by Ballast Nedam Funderingstechnieken.
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Definition:
tube or shaped lost beaten in jectant purée or tbe simultaneously lost placed in a drilling stabilized with post-injection.
Characteristics:
beaten = repression of ground;
drilled = excavationde grounds.
typical bearing capacity under variable efforts until 3500kN of traction and 5000kN compression
friction (steel - purée - ground) is meillior that steel - ground
Scope of application:
tubes: development for the foundations of the lines with high voltage
shaped: charge with important traction (walls of quay)
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Definition:
pile made up of cylindrical elements metal or out of reinforced concrete, dark hydraulically in the ground by using like reaction the weight even of construction.
Characteristics:
ground repression
pile "is tested" during the execution = load of sinking
without vibrations
without noise pollution
Scope of application:
underpinning of existing constructions
restorations of sagging constructions
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Definition:
Bawang = onion.
tubed pile at widened base, patented system
The pile is made by beating of a steel tube closed by the gravel of beating. The segments of the various tubes are welded. With the level of sitted the gravel of beating and the no-slump concrete are used to form the widened base.
Property:
possible not-concreted length
diameter of the barrel following the tubes available (normally of 220mm with 507mm).
the diameter of the base is determined by the quantity of no-slump concrete used (normally diameter of the barrel + 200 with 250mm)
tilted piles from 1/3 to -1/4
repression of ground
bearing load until 2000kN
Scope of application:
piles under reduced height (starting from 2.2m) from where reduced workspace
reduced vibrations (to beat in the tube causes less vibrations than to beat a tube at the head tube)
aggressive ground, water current in the ground (the tube protects the run concrete)
economy thanks to a length reduced by widened base (level of higher sitted)
resumption of the tractive efforts
if it ya of the risks to cross cavities in the ground or in the event of the very soft grounds (risk to lose the cast concrete)
underwater work: the piles can be finished higher of the level of water
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Definition:
"Pressurized Concrete Screw crushes", pile carried out using a continuous spiral around a tube of 15cm of diameter, concreted using a concrete pump under pressure.
Characteristics:
the concreting under pressure and the large couple of the machines avoid the risk of relieving of the ground (pile CFA traditional)
without vibrations and low sound level
possibility of crossing hard layers (gravel or sand qc>15MPa)
diameters starting from 250mm until 1200mm
quality control per electronic system of monitoring (Lutz)
Scope of application:
to cross hard layers
pseudo walls tangent
like alternative of the drilled piles of large diameter
drainage of grounds after drilling (considerable quantities)
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Earth and water retaining sheet-pile wall. A construction pit can be built using this technique. After the sheet-pile pit has been constructed on land or in the water it is pumped dry. Construction pits up to and including 30 metres deep are possible. Applications include, amongst others, the construction of a car park or the realization of a metro system.
The steel sheet-pile wall provides the solution for safe-working inside the pit. After such a project has been completed the steel sheet-pile wall is removed. In the case of the construction of a quay wall that consists of steel sheet-pile walls, for instance, these sheet-pile wall components naturally remain permanently.
Ballast Nedam Funderingstechnieken installed the sheet-pile wall quay at Rheinkai Nord in Duisburg.
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