EP2093332A1 - Verfahren zum Herstellen eines Fundamentes - Google Patents

Verfahren zum Herstellen eines Fundamentes Download PDF

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Publication number
EP2093332A1
EP2093332A1 EP09153179A EP09153179A EP2093332A1 EP 2093332 A1 EP2093332 A1 EP 2093332A1 EP 09153179 A EP09153179 A EP 09153179A EP 09153179 A EP09153179 A EP 09153179A EP 2093332 A1 EP2093332 A1 EP 2093332A1
Authority
EP
European Patent Office
Prior art keywords
layer
floating
blocks
foundation
layers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP09153179A
Other languages
English (en)
French (fr)
Other versions
EP2093332B1 (de
Inventor
Johan Willem Van Der Pol
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dura Vermeer Business Development Bv
Unidek Group BV
Original Assignee
Dura Vermeer Business Development Bv
Unidek Group BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dura Vermeer Business Development Bv, Unidek Group BV filed Critical Dura Vermeer Business Development Bv
Publication of EP2093332A1 publication Critical patent/EP2093332A1/de
Application granted granted Critical
Publication of EP2093332B1 publication Critical patent/EP2093332B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/01—Flat foundations
    • E02D27/04—Flat foundations in water or on quicksand
    • E02D27/06—Floating caisson foundations
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/32—Foundations for special purposes
    • E02D27/36—Foundations formed in moors or bogs

Definitions

  • the invention relates to a method for constructing a foundation for a structure, which foundation is laid on an unstable surface.
  • structure is understood to mean all that which is placed on a foundation in practice, for example an earth structure or a building.
  • the invention in particular relates to the construction of a foundation for sports fields, such as soccer or hockey fields or tennis courts, as well as other light structures, such as lawns, grass strips and footpaths, without the invention being limited thereto.
  • the term “unstable surface” is understood to mean a surface which lacks the load bearing capacity, or sufficient load bearing capacity, to support a foundation and a structure to be placed thereon, such as an earth structure, without additional measures being required. Peaty ground is such a weak surface, for example.
  • an artificial lawn is constructed on a lava foundation, for example, which lava foundation is supported in particular on sand that has been pre-loaded for a prolonged period of time. It has been found in practice that an artificial lawn constructed in this way will invariably exhibit bumps and hollows or other damage after some time. Said bumps and hollows result from local unevennesses caused by settlement and/or subsidence of the ground, for example at the location of filled-in ditches.
  • the object of the invention is to improve the prior art, i.e. to ensure that local unevennesses caused by settlement and/or subsidence of the unstable ground cannot cause damage to the foundation and the structure to be placed thereon.
  • the invention provides a method for constructing a foundation for a structure, which foundation is laid on an unstable surface, the foundation being formed by a floating base, which floating base, in the condition of use thereof, floats on a water-containing layer, characterised in that the floating base is made up of
  • the stiffening fabric functions to impart sufficient rigidity to the foundation, in particular to prevent the floating layers of EPS blocks from deforming upon being locally subjected to a specific load in use.
  • the invention is in particular based on the realisation of a state of equilibrium, in which the foundation and the structure to be placed thereon float on a water-containing layer (for example a water-saturated layer of soil in the condition of use, i.e. in the loaded condition, making use of the upward force of the water ("Archimedes' law").
  • the water, in combination with the floating base will compensate for unevennesses caused by settlement and/or subsidence of the unstable ground that may occur, for example at the location of filled-in ditches.
  • the stiffening fabric is also provided on an inner side of one or more floating layers.
  • the present invention more in particular provides the following advantages:
  • the stiffening fabric is provided on both sides of at least one of the floating layers.
  • the stiffening fabric is in particular provided in blocks or in layers on at least one side of one of the floating layers.
  • the blocks of each floating layer are attached, preferably glued, together along their long sides.
  • several floating bases are formed, which are joined together, for example by mechanical means.
  • the stiffening fabric is made of at least one material selected from the group consisting of metal, plastic, carbon and glass. More in particular, a mesh of metal, plastic, carbon or glass is used. If a mesh of plastic material is used, the stiffening fabric is made of at least one material selected from the group consisting of polypropylene, polyester, polyethylene, nylon and glass fibre.
  • a top layer is laid on the floating base.
  • the top layer in particular comprises a layer of poured concrete, which may or may not be reinforced.
  • the concrete is for example selected to comprise closed or open cells (so-called "cellular concrete").
  • the top layer is for example made up of a granulate layer. This has a positive effect on the distribution of forces, in particular the damping of vibrations, as well as on the drainage of rain water, for example.
  • the unstable ground is dug off to below the ground water level, with the floating base floating on a layer of ground water.
  • a layer of ground water on which the foundation can float is automatically created.
  • the groundwater is stable by nature, so that unacceptable fluctuations, for example caused by undulation, cannot occur.
  • the floating base in a condition of use thereof, floats on a water layer provided between the floating base and the unstable ground.
  • the layer of (ground) water has a thickness of at least 5 cm.
  • this thin water layer is quite capable of compensating for unevennesses caused by settlement and/or subsidence of the unstable ground.
  • Figure 2 shows how the floating base 2 is made up
  • the thickness of the water layer is maintained by pump means.
  • the water layer is also refreshed - periodically or non-periodically - by said pump means. This furthermore makes it possible to store or buffer water.
  • the ground is peaty ground, from which peat has first been dug off so as to obtain a deepened area 1.
  • a foundation in the form of a floating base 2 has been laid on (ground) water 3 in the deepened area 1.
  • a soccer field 4 has been built.
  • a pump (not shown) can pump water from the surface water 5 into the deepened area 1 in the direction indicated by the arrow 6 (for example when the water is high and water needs to be stored under the floating base 2) and also from the deepened area 1 to the surface water 5. In this way it is possible to control the water level in the deepened area 1 (i.e. under the floating base 2).
  • the pump can pump out all the water from under the floating base 2 (so that the floating base 2 will rest on the bottom of the deepened area 1) when the soccer field is not being used for playing.
  • the thin water layer under the floating base 2 is quite capable of compensating for unevennesses caused by settlement and/or subsidence of the unstable peaty ground.
  • FIG. 2 shows how the floating base 2 is made up of three floating layers 7, 8, 9 of expanded polystyrene (EPS) and stiffening layers 10 of geotextile provided, possibly glued, on one side thereof.
  • the stiffening layers 10 function to impart sufficient rigidity to the floating base, in particular to prevent the floating layers 7,8,9 from sagging too much upon being subjected to a specific (local) load of, for example, 250 kg/m 2 (2.5 kN/m 2 ).
  • the floating layers 7, 8, 9 are for example made of elongated blocks of EPS of about 200 mm, whilst the stiffening layer 10 is made of geotextile.
  • the floating layer 7 is about 100 mm thick and the floating layer 8 is about 400 mm thick.
  • FIG. 2 shows, the elongated EPS blocks of neighbouring layers 7,8,9 are arranged in a crosswise, staggered pattern.
  • Figures 3 and 4 show other preferred variants of the floating base 2, in which parts corresponding to each other are indicated by the same numerals.
  • FIGs 3 and 4 four layers 7,8,9,11 or EPS blocks arranged in a crosswise, staggered pattern are shown.
  • the layers 7, 8, 9, 11 are provided with a carbon or glass fabric 10 on one side, for example, whilst in figure 4 the layers 7,8,9,11 are provided with such a fabric on both sides.
  • a top layer 12 of concrete or a granulate is provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Foundations (AREA)
EP20090153179 2008-02-19 2009-02-19 Verfahren zum Herstellen eines Fundamentes Not-in-force EP2093332B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2001295A NL2001295C2 (nl) 2008-02-19 2008-02-19 Werkwijze ter vervaardiging van een constructie.

Publications (2)

Publication Number Publication Date
EP2093332A1 true EP2093332A1 (de) 2009-08-26
EP2093332B1 EP2093332B1 (de) 2012-12-12

Family

ID=39591956

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20090153179 Not-in-force EP2093332B1 (de) 2008-02-19 2009-02-19 Verfahren zum Herstellen eines Fundamentes

Country Status (2)

Country Link
EP (1) EP2093332B1 (de)
NL (1) NL2001295C2 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2004245C2 (nl) * 2010-02-15 2011-08-16 Gemeentewerken Gemeente Rotterdam Funderingsconstructie, alsmede infrastructuur met een dergelijke funderingsconstructie.
EP2631363A1 (de) * 2012-02-21 2013-08-28 Finnfoam Oy Verfahren zum Bau von Strassen und Verwendung von Isolierplatten dafür

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE325700C (de) * 1913-02-15 1920-09-17 Alfred Blondel Gruendung von Gebaeuden in wasserhaltigem Boden
DE476333C (de) * 1923-06-27 1929-05-17 Siemens Bauunion G M B H Komm Verfahren zur Absenkung des Wasserstandes bei der Herstellung von engen und tiefen Baugruben
DE858967C (de) * 1951-02-16 1953-03-12 Hans Dr-Ing Lorenz Verfahren zur Dichtung von Bauwerken gegen Grundwasserandrang oder zur Grundwasserhaltung in Baugruben sowie zum Abschirmen von Schwingungen
JPS5869923A (ja) * 1981-10-20 1983-04-26 Kajima Corp 地下連続壁を利用した構造物の構築方法
GB2174441A (en) 1985-04-24 1986-11-05 Henri Vidal Earth structures
DE3908005A1 (de) * 1988-08-10 1990-02-15 Aicher Max Verfahren zur gruendung eines baukoerpers durch absenken
EP0683273A1 (de) * 1994-05-20 1995-11-22 Screg Leichte Aufschüttung hergestellt aus wiederverwertbaren Materialien
WO1997039195A1 (fr) * 1996-04-18 1997-10-23 Screg Remblai allege
WO2001096671A1 (de) * 2000-06-15 2001-12-20 Hubert Pfahl Schalungselement und damit hergestellte bodenplatte eines gebäudes
NL1025707C2 (nl) * 2004-03-12 2005-09-13 Abc Arkenbouw B V Drijvend funderingselement, samenstel van twee of meer funderingselementen, gebouw geplaatst op een funderingselement alsmede werkwijze voor het vervaardigen van een funderingselement.
JP2006152659A (ja) * 2004-11-29 2006-06-15 Kumagai Gumi Co Ltd 法枠の中詰め方法
WO2007030013A2 (en) * 2005-09-05 2007-03-15 Hein Douwinus Voskamp Floatable construction

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE325700C (de) * 1913-02-15 1920-09-17 Alfred Blondel Gruendung von Gebaeuden in wasserhaltigem Boden
DE476333C (de) * 1923-06-27 1929-05-17 Siemens Bauunion G M B H Komm Verfahren zur Absenkung des Wasserstandes bei der Herstellung von engen und tiefen Baugruben
DE858967C (de) * 1951-02-16 1953-03-12 Hans Dr-Ing Lorenz Verfahren zur Dichtung von Bauwerken gegen Grundwasserandrang oder zur Grundwasserhaltung in Baugruben sowie zum Abschirmen von Schwingungen
JPS5869923A (ja) * 1981-10-20 1983-04-26 Kajima Corp 地下連続壁を利用した構造物の構築方法
GB2174441A (en) 1985-04-24 1986-11-05 Henri Vidal Earth structures
DE3908005A1 (de) * 1988-08-10 1990-02-15 Aicher Max Verfahren zur gruendung eines baukoerpers durch absenken
EP0683273A1 (de) * 1994-05-20 1995-11-22 Screg Leichte Aufschüttung hergestellt aus wiederverwertbaren Materialien
WO1997039195A1 (fr) * 1996-04-18 1997-10-23 Screg Remblai allege
WO2001096671A1 (de) * 2000-06-15 2001-12-20 Hubert Pfahl Schalungselement und damit hergestellte bodenplatte eines gebäudes
NL1025707C2 (nl) * 2004-03-12 2005-09-13 Abc Arkenbouw B V Drijvend funderingselement, samenstel van twee of meer funderingselementen, gebouw geplaatst op een funderingselement alsmede werkwijze voor het vervaardigen van een funderingselement.
JP2006152659A (ja) * 2004-11-29 2006-06-15 Kumagai Gumi Co Ltd 法枠の中詰め方法
WO2007030013A2 (en) * 2005-09-05 2007-03-15 Hein Douwinus Voskamp Floatable construction

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"DRAAIBARE WONING DRIJFT OP EPS", BOUWWERELD, REED BUSINESS INFORMATION, DOETINCHEM, NL, vol. 103, no. 21, 4 December 2007 (2007-12-04), pages 20/21, XP001509294, ISSN: 0026-5942 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2004245C2 (nl) * 2010-02-15 2011-08-16 Gemeentewerken Gemeente Rotterdam Funderingsconstructie, alsmede infrastructuur met een dergelijke funderingsconstructie.
EP2631363A1 (de) * 2012-02-21 2013-08-28 Finnfoam Oy Verfahren zum Bau von Strassen und Verwendung von Isolierplatten dafür

Also Published As

Publication number Publication date
NL2001295C2 (nl) 2009-08-20
EP2093332B1 (de) 2012-12-12

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