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Sheet-piling Copyright 2005 © Nicolai Green Hansen 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 Copyright 2005 © Nicolai Green Hansen Generally piling is used for: Establishing of vertical difference of heights (building activities)
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Sheet-piling Copyright 2005 © Nicolai Green Hansen But is also used for: Baffle walls Breaking water Framing of contaminated areas
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Sheet-piling Copyright 2005 © Nicolai Green Hansen 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 Copyright 2005 © Nicolai Green Hansen Example of a temporary/interims sheet piling
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Sheet-piling Copyright 2005 © Nicolai Green Hansen Example of a durable/permanent sheet piling
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Sheet-piling Copyright 2005 © Nicolai Green Hansen Terminology Der skelnes mellem 2 overordnede modeller for spunsning Framing of a platform Framing of a hollow
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Sheet-piling Copyright 2005 © Nicolai Green Hansen Framing of a platform
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Sheet-piling Copyright 2005 © Nicolai Green Hansen Framing of a hollow
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Sheet-piling Copyright 2005 © Nicolai Green Hansen 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 Copyright 2005 © Nicolai Green Hansen Copenhagen walls (Københavnervægge)
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Sheet-piling Copyright 2005 © Nicolai Green Hansen Copenhagen walls (Københavnervægge) Vertical HE - profiles Distance: 0,5 til 1,5 meter Fine in dry sand Not fitted under water surface in sand layer (the wall are not watertight) Also fitted in cohesion soil (clay) possible without completing or with gunite Supplementing: Planks/iron sheets possible gunite
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Sheet-piling Copyright 2005 © Nicolai Green Hansen 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 Copyright 2005 © Nicolai Green Hansen 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 Copyright 2005 © Nicolai Green Hansen 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 Copyright 2005 © Nicolai Green Hansen 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 The terrain above the wall must nok be loaded by digged up soil, building materials ect. There must nok be any settlings sentisive constructions nearby
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Sheet-piling Copyright 2005 © Nicolai Green Hansen 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 Copyright 2005 © Nicolai Green Hansen Free framed walls of sheet iron - barriers
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Sheet-piling Copyright 2005 © Nicolai Green Hansen Free framed walls of sheet iron - berm
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Sheet-piling Copyright 2005 © Nicolai Green Hansen 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 Copyright 2005 © Nicolai Green Hansen Shored-up framed walls – the 3 stiffening methods Slantingly stiffening – with stringpiece Mutual - with stringpiece Injected with anchor
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Sheet-piling Copyright 2005 © Nicolai Green Hansen 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 Copyright 2005 © Nicolai Green Hansen 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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Sheet-piling Copyright 2005 © Nicolai Green Hansen 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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Sheet-piling Copyright 2005 © Nicolai Green Hansen Shored-up framed walls – slantingly stiffening with stringpiece
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Sheet-piling Copyright 2005 © Nicolai Green Hansen Shored-up framed walls – mutual with stringpiece
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Sheet-piling Copyright 2005 © Nicolai Green Hansen Afstivede indfatningsvægge – med injiceret anker
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Sheet-piling Copyright 2005 © Nicolai Green Hansen Picture example
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Sheet-piling Copyright 2005 © Nicolai Green Hansen Picture example
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Sheet-piling Copyright 2005 © Nicolai Green Hansen Picture example
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Sheet-piling TRIMAX Spuns planke Varenummer: 300525 Dimensions:HightWidthStandard length Measure5 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 durability, preparing, maintenance and appearance. En optimal spunsløsning der indfrier alle krav til holdbarhed, forarbejdning, vedligeho Copyright 2005 © Nicolai Green Hansen
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Sheet-piling Copyright 2005 © Nicolai Green Hansen 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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Sheet-piling Copyright 2005 © Nicolai Green Hansen 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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