 What is the definition of ”piling”?
 Different types of piling.
 Where are the different types used?
 Structure of a sheet piling.
 Safety conditions.
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Sheet-piling
Generally piling is used for:
 Establishing of vertical difference of heights (building activities)
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Sheet-piling
But is also used for:
 Baffle walls
 Breaking water
 Framing of contaminated areas
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Technical definition:
In technical relation a tightening/securing of soil and/or water.
Purpose:
 Temporary/interims construktions in relation to a building.
 Durable/permanent constructions, for example harbours, retaining walls ect.
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Sheet-piling
Example of a temporary/interims sheet piling
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Sheet-piling
Example of a durable/permanent sheet piling
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Sheet-piling
Terminology
Der skelnes mellem 2 overordnede modeller for spunsning
 Framing of a platform
 Framing of a hollow
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Sheet-piling
Framing of a platform
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Sheet-piling
Framing of a hollow
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Sheet-piling
Following types of sheet-piling walls exists:
 Copenhagen walls (Københavnervægge)
 Free framed walls of sheet-piling irons
 Shored-up framed walls
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Sheet-piling
Copenhagen walls (Københavnervægge)
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Sheet-piling
Copenhagen walls (Københavnervægge)

Vertical HE - profiles

Distance: 0,5 til 1,5 meter

Supplementing: Planks/iron sheets possible gunite

Fine in dry sand

Also fitted in cohesion soil (clay) possible without completing or with gunite

Not fitted under water surface in sand layer (the wall are not watertight)
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Sheet-piling
Copenhagen walls (Københavnervægge)

Profile irons is ramed down as traditional piling or by pressing
– eventual there could be predrilled to bottom of excavation and then ramed down
 Alternatively there can be ramed down to the level of the tip and subsequent concrete are deposit to excavation level
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Sheet-piling
Copenhagen walls (Københavnervægge)

Can be performed as free wall under following assumptions:

Deep of excavation do not exceed 3-4 meters

There must not be settlings sentitive constructions nearby
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Sheet-piling
Copenhagen walls (Københavnervægge)

Can also be done as a shored up wall – as shored up framed walls

Shoring up should always take place if any of the mentioned assumptions ain
´t fullfilled

REMEMBER: Safety above all!
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Sheet-piling
Free framed walls of sheet iron

Performed with special iron profile with locks

The walls are water tight

Good where water level is higher then the level for the excavation

A free sheet piling wall must maximum be 3-4 meter because water- and soil pressure can bring big deformations

There must nok be any settlings sentisive constructions nearby

The terrain above the wall must nok be loaded by digged up soil, building materials ect.
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Sheet-piling
Free framed walls of sheet iron
Surface loads can be minimized as followed:

Closing of the area behind the sheet piling wall

Excavation in the shape of a berm behind the sheet piling wall
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Sheet-piling
Free framed walls of sheet iron - barriers
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Sheet-piling
Free framed walls of sheet iron - berm
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Sheet-piling
Shored-up framed walls

Used when the excavations are deeper then 3-4 meter

Are economical better when the digging depth are big (less material consumption than by free walls)

Cause substantial less horizontal deformations
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Sheet-piling
Shored-up framed walls – the 3 stiffening methods

Slantingly stiffening – with stringpiece

Mutual - with stringpiece

Injected with anchor
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Sheet-piling
Shored-up framed walls – slantingly stiffening

A wood/steel profile which are secured to a foundation in the bottom of the excavation up to a horizontal stringpiece

The foundation can maybe also be combined with the building construction (floors ect.)
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Sheet-piling
Shored-up framed walls – mutual with stringpiece

If there are a opposite framed wall this can be used as retain

The width of the excavation must maximum be 10 meter
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© Nicolai Green Hansen

Sheet-piling
Shored-up framed walls – injected with anchors

Are really specialist work

Used by big excavation deeps

The big advantage are the free space in the excavation

Can be established in more levels

A thorough inquiry of the underlying soil volume must be performed thus supply pipes ect. ain
´t damaged
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© Nicolai Green Hansen

Sheet-piling
Shored-up framed walls – slantingly stiffening with stringpiece
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Sheet-piling
Shored-up framed walls – mutual with stringpiece
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Sheet-piling
Afstivede indfatningsvægge – med injiceret anker
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Sheet-piling
Picture example
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Sheet-piling
Picture example
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Sheet-piling
Picture example
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Sheet-piling
Varenummer: 300525
Dimensions: Hight
TRIMAX Spuns planke
Width Standard length
Measure 5 cm.
25 cm.
4 - 5 - 6 mt.
Plank with groove and tongue, specially developed for sheet-piling, super strong smooth profile which has all the known good characteristica as the rest of the TRIMAX program.
A optimal shet piling solution that taking up all demands for
En optimal spunsløsning der indfrier alle krav til holdbarhed, forarbejdning, vedligeho
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Sheet-piling
Fine Links http://www.ramboll.dk/cmsresources/opera.pdf
http://www.vejdirektoratet.dk/pdf/rapport_183/komb.pdf
http://www.dr.dk/drbyen/arkiv_32_barduner.asp
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© Nicolai Green Hansen

Sheet-piling
Safety

ALWAYS get specialists to dimensionate sheet-piling walls

Think on your and others safety during the works execution

Do NEVER remove stiffenings ect. even if they are in way

If you observe any suspicious then NOTIFY construction site manager or the authorities

Do NEVER compromise even in pressed circumstances

Life is to short for ACCIDENTS
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© Nicolai Green Hansen