EP3137689B1 - Verfahren zur erzeugung einer stabilisierten erdwand - Google Patents

Verfahren zur erzeugung einer stabilisierten erdwand Download PDF

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Publication number
EP3137689B1
EP3137689B1 EP15729253.3A EP15729253A EP3137689B1 EP 3137689 B1 EP3137689 B1 EP 3137689B1 EP 15729253 A EP15729253 A EP 15729253A EP 3137689 B1 EP3137689 B1 EP 3137689B1
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EP
European Patent Office
Prior art keywords
soil
wall
plate
compression space
compression
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Application number
EP15729253.3A
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English (en)
French (fr)
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EP3137689A1 (de
Inventor
Eldert BESSELING
Hugo Hendrikus Martinus EKKELENKAMP
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Netics BV
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Netics BV
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Priority to PL15729253T priority Critical patent/PL3137689T3/pl
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/02—Retaining or protecting walls
    • E02D29/0258—Retaining or protecting walls characterised by constructional features
    • E02D29/0275—Retaining or protecting walls characterised by constructional features cast in situ

Definitions

  • the known method has as a drawback that the stability and life span of the wall elements or the wall leaves to be desired. This is mainly caused by the often differing properties of the supplied soil and thus the resulting soil mixture used for constructing the wall.
  • the wall is constructed as a delimitation for a water reservoir, such as a river or a ditch.
  • the known walls can hardly be used for such purposes due to severe problems with mechanical stability and load carrying capability.
  • the inventors have found that the method increases the stability, load carrying capability and life span of the wall. Furthermore, the ecological footprint thereof is reduced due to the use of local soil.
  • the additives may comprise stabilizing or binding additives.
  • usually the supplied soil is already pre-selected or pre-conditioned for use with a wall element.
  • the embodiment advantageously seeks to be able to utilize virtually any type of supplied soil by analyzing the supplied soil and then adding additives as required (essentially 'on the spot'). This allows a much broader range of soil types to be used, such as local soil, lowering in particular soil transportation costs and ecological footprint.
  • zeolite is added as one of the additives.
  • each wall element therein may have a width and/or height of 1,5 - 2,0 m, such as 1,8 m.
  • An embodiment relates to a method, wherein the mixing takes place in a mixing device arranged on a vessel floating on the water reservoir near the location where the wall is to be created. This allows the soil mixture to be produced as close as possible to the actual wall creation site.
  • An embodiment relates to a method, wherein during the mixing of the soil cement and/or lime, such as Portland cement, is added as one of the additives, being less than 50%, such as 5-10%, of the soil volume.
  • the soil cement and/or lime such as Portland cement
  • Such (Portland) cement especially in the aforementioned quantities, further stabilizes the wall or wall element.
  • zeolite has good CO2-absorbing properties. Therefore, a large part of CO2-production caused by the production of Portland cement can be compensated for, thereby facilitating an even lower ecological footprint, even allowing the wall to be created in a 'CO2-neutral' way.
  • zeolite in the compressed soil wall is that smells and even pollution are absorbed and stabilized. Zeolite also causes the wall to have a higher resistance against intrusion by external substances or similar influences. This is of particular importance when the wall is used as sheet piling for delimiting a water reservoir and this especially holds when additional reinforcement or anchoring is used therewith.
  • An embodiment relates to a method, wherein the supplied soil comprises polluted soil.
  • the optional zeolite will absorb and stabilize soil pollution allowing polluted soil to be used for building the compressed soil wall if desired.
  • An embodiment relates to an aforementioned method, wherein the zeolite is natural zeolite, preferably more than 95% natural zeolite, more preferably more than 97% natural zeolite, to obtain the lowest ecological footprint.
  • the compression space comprises a substantially vertical first plate or plate-like profile and a substantially vertical second plate, spaced-apart from the first plate, wherein the first and second plate extend along a substantially horizontal wall creation axis, and a substantially vertical third plate, arranged at a horizontal end of the first and second plates and extending substantially perpendicular to the first and second plates, wherein the third plate is moveable along the wall creation axis, wherein a soil compression space is delimited by the first, second and third plates, wherein, when the compression space is filled with the soil mixture, the third plate is moved along the wall creation axis to compress the soil mixture in the soil compression space.
  • This allows relatively fast creation of a wall element or a block of a compressed soil wall.
  • Another aspect of the invention relates to a stabilized soil wall, comprising one or more wall elements of compressed soil, wherein the compressed soil wall is created with the aforementioned method.
  • An embodiment relates to an aforementioned stabilized soil wall, wherein one of the wall elements comprises a soil mixture containing soil that has been excavated from the location where the wall has been created or the direct vicinity thereof.
  • An embodiment relates to an aforementioned stabilized soil wall, wherein the wall forms the sheet piling of a water reservoir, such as a river or a ditch.
  • An embodiment relates to an aforementioned stabilized soil wall, wherein one of the wall elements comprises a soil mixture containing less than 50%, such as 5-10% cement, in relation to the soil volume.
  • Another aspect of the invention relates to a compression device for use in the method, comprising a housing with two attachment elements, wherein each attachment element is suitable for attachment to the horizontal end of either the first or the second plate, and a compression member arranged between the attachment elements.
  • a compression device for use in the method, comprising a housing with two attachment elements, wherein each attachment element is suitable for attachment to the horizontal end of either the first or the second plate, and a compression member arranged between the attachment elements.
  • Figure 1 shows a perspective view of an exemplary embodiment of the method according to the invention and a stabilized soil wall created therewith.
  • Figure 1 shows a perspective view of an exemplary embodiment of the method according to the invention.
  • Figure 1 more specifically shows a method for creating a stabilized, such as compressed, soil wall 1 according to the invention, comprising the steps of supplying soil to the location where the wall 1 is to be created, such as the bank of a river or a ditch.
  • a compression space 2 is created at the location where the wall 1 (or more generally, a wall element for use in a wall) is to be created, for example by using formwork.
  • the soil is mixed in a mixing device 3 with one or more desired additives 4 to obtain a desired soil mixture 5.
  • an amount of soil mixture 5 is arranged in the compression space 2.
  • cement and/or lime such as Portland cement
  • the amount of zeolite to be added is 10-20% of the amount of added (Portland) cement and/or lime to achieve optimal results.
  • the zeolite preferably contains close to 100% natural zeolite.
  • the third plate 15 is compressed against the soil mixture 5 by a compression device 17 attached to the horizontal ends of the first 13 and second 14 plates.
  • the compression device 17 comprises a compression member 20, such as a piston, moveable along the wall creation axis X to compress the third plate 15 against the soil mixture 5.
  • the compression device 17 basically comprises a main body or a housing with two attachment elements 19, wherein each attachment element 19 is suitable for attachment to the horizontal end of either the first 13 or the second plate 14.
  • the attachment elements 19 may comprise a suction device, mechanical clamps, et cetera.
  • the compression member 20 is preferably arranged between the attachment elements 19 for symmetric power exertion on the third plate 15.

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (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)
  • Bulkheads Adapted To Foundation Construction (AREA)

Claims (14)

  1. Verfahren zum Errichten einer stabilisierten Erdwand (1), die eine Begrenzung eines Wasserreservoirs (10) bildet, unter Verwendung lokal verfügbarer Erde, wobei das Verfahren die Schritte umfasst:
    - Liefern der Erde an den Ort, wo ein Wandelement, das ein Teil der Wand werden soll, errichtet werden soll,
    - Errichten eines Verdichtungsraums (2) an dem Ort, an dem das Wandelement errichtet werden soll,
    wobei das Verfahren dadurch gekennzeichnet ist, dass es ferner die folgenden Schritte umfasst
    - Anordnen einer Menge der Erde in dem Verdichtungsraum, wobei vor dem Anordnen der Menge der Erde in dem Verdichtungsraum, um das Wandelement (6, 7) zu errichten, die Erde in einer Mischvorrichtung (3) gemischt wird, um eine gewünschte Erdmischung (5) zu erhalten, wobei das Mischen die Zugabe eines oder mehrerer gewünschter Zusatzstoffe (4) basierend auf den mechanischen und chemischen Eigenschaften der gelieferten Erde umfasst, wobei während des Mischens der Erde Zement und/oder Kalk als einer der Zusatzstoffe im Bereich von 5-10 % des Erdvolumens hinzugefügt werden und Zeolith als einer der Zusatzstoffe in einer Menge von 10-20 % der Menge des hinzugefügten Zement- und/oder Kalkvolumens hinzugefügt wird,
    - Verdichten der Erde in dem Verdichtungsraum, um das Wandelement (6, 7) zu erhalten, wobei das Wandelement als ein Block gebildet wird und wobei die Verdichtung der Erde mit Schwingungen ausgeführt wird und die verwendete Verdichtungskraft im Bereich von 10-200 kg/cm2 liegt,
    - Anordnen des Wandelements an dem Ort, an dem die Wand (1) errichtet werden soll, und Verdichten nachfolgender Wandelemente (6, 8), um Blöcke zu bilden, und Anordnen dieser an das erste Wandelement angrenzend, bis die gewünschte Wandgröße erreicht ist.
  2. Verfahren nach Anspruch 1, wobei die Zusatzstoffe Verstärkungsmaterialien, wie z. B. Fasern, z. B. Hanf oder Flachs, oder Puzzolane, wie z. B. Flugasche, umfassen.
  3. Verfahren nach Anspruch 1 oder 2, wobei die Mischvorrichtung (3), in der das Mischen stattfindet, auf einem Wasserfahrzeug (11) angeordnet ist, das auf einem Wasserreservoir in der Nähe des Ortes, wo die Wand errichtet werden soll, schwimmt.
  4. Verfahren nach Anspruch 3, wobei die gelieferte Erde an dem Ort, an dem die Wand errichtet werden soll, oder in seiner direkten Umgebung ausgehoben wird und wobei der Aushub durch einen Bagger (12) ausgeführt wird, der auf dem Wasserfahrzeug (11) angeordnet ist.
  5. Verfahren nach einem der vorhergehenden Ansprüche, wobei die Wand die Spundwand (9) eines Wasserreservoirs (10) bildet.
  6. Verfahren nach einem der vorhergehenden Ansprüche, wobei die hinzuzufügende Menge des Zeoliths 15 % der Menge des hinzugefügten Zement- und/oder Kalkvolumens ist.
  7. Verfahren nach einem der vorhergehenden Ansprüche, wobei der Verdichtungsraum (2) eine im Wesentlichen vertikale erste Platte (13) oder ein im Wesentlichen vertikales plattenähnliches Profil und eine im Wesentlichen vertikale zweite Platte (14), die von der ersten Platte beabstandet ist, wobei sich die erste und die zweite Platte entlang einer im Wesentlichen horizontalen Wanderrichtungsachse (X) erstrecken, und eine im Wesentlichen vertikale dritte Platte (15), die an einem horizontalen Ende der ersten und der zweiten Platte angeordnet ist und sich im Wesentlichen senkrecht zu der ersten und der zweiten Platte erstreckt, umfasst, wobei die dritte Platte entlang der Wanderrichtungsachse beweglich ist, wobei ein Erdverdichtungsraum (16) durch die erste, die zweite und die dritte Platte begrenzt ist, wobei, wenn der Verdichtungsraum mit der Erdmischung (5) gefüllt wird, die dritte Platte entlang der Wanderrichtungsachse bewegt wird, um die Erdmischung in dem Erdverdichtungsraum zu verdichten.
  8. Verfahren nach Anspruch 7, wobei die dritte Platte durch eine Verdichtungsvorrichtung (17), die an den horizontalen Enden der ersten und der zweiten Platte befestigt ist, gegen die Erdmischung gepresst wird, wobei die Verdichtungsvorrichtung ein Verdichtungselement (20) umfasst, das entlang der Wanderrichtungsachse beweglich ist, um die dritte Platte gegen die Erdmischung zu pressen.
  9. Verfahren nach einem der Ansprüche 1, 2 oder 3, wobei die gelieferte Erde an dem Ort, an dem die Wand errichtet werden soll, oder seiner direkten Umgebung ausgehoben wird.
  10. Verfahren nach Anspruch 9, wobei die Wand die Spundwand eines Wasserreservoirs (10) bildet.
  11. Verfahren nach Anspruch 10, wobei der Aushub durch einen Bagger (12) ausgeführt wird, der auf dem Wasserfahrzeug angeordnet ist.
  12. Verfahren nach Anspruch 8, wobei ein Bagger (12) verwendet wird, um die Oberfläche der Erdmischung in dem Erdverdichtungsraum (16) zu verdichten.
  13. Verfahren nach Anspruch 7 oder 8, wobei, wenn ein erstes Wandelement aus verdichteter Erde erzeugt worden ist, die erste, die zweite und die dritte Platte entlang der Wanderrichtungsachse zu einem Ort neben dem ersten Wandelement verschoben werden, um ein oder mehrere nachfolgende Wandelemente aus verdichteter Erde zu errichten, bis die gewünschte Wandgröße erreicht ist.
  14. Verfahren nach Anspruch 13, wobei für das eine oder die mehreren nachfolgenden Wandelemente der Erdverdichtungsraum (16) durch die erste, die zweite und die dritte Platte und eine Seitenfläche (18) eines vorhergehenden Wandelements aus verdichteter Erde, wie z. B. eine Seitenfläche des ersten Wandelements, begrenzt ist.
EP15729253.3A 2014-05-02 2015-05-04 Verfahren zur erzeugung einer stabilisierten erdwand Active EP3137689B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15729253T PL3137689T3 (pl) 2014-05-02 2015-05-04 Sposób wykonania ściany ze stabilizowanej ziemi

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2012739A NL2012739B1 (en) 2014-05-02 2014-05-02 Method for creating a stabilized soil wall.
PCT/NL2015/050309 WO2015167341A1 (en) 2014-05-02 2015-05-04 Method for creating a stabilized soil wall

Publications (2)

Publication Number Publication Date
EP3137689A1 EP3137689A1 (de) 2017-03-08
EP3137689B1 true EP3137689B1 (de) 2020-02-19

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EP (1) EP3137689B1 (de)
NL (1) NL2012739B1 (de)
PL (1) PL3137689T3 (de)
WO (1) WO2015167341A1 (de)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2571399B1 (fr) * 1984-10-05 1987-01-23 Rousset Michel Dispositif fonctionnel destine a la construction sans coffrage de murs de soutenement et similaires
FR2607160B1 (fr) * 1986-11-20 1991-01-25 Bec Freres Sa Ouvrages en materiaux compactes composes de remblai melange a un liant hydraulique et procedes et machines pour les construire en compactant les talus
DE4213348C1 (de) * 1992-04-23 1993-12-09 Heidelberger Zement Ag Bindemittelmischung zur einstufigen Herstellung von Dichtwänden
US6749783B2 (en) 2001-02-05 2004-06-15 Steve Everett Tango II soil block press
US7311865B2 (en) 2004-03-12 2007-12-25 Larry Don Williamson Block-ramming machine
US20070248710A1 (en) 2006-03-31 2007-10-25 Thomas M. Isaacson System and method for making a compressed earth block
CN201372440Y (zh) 2009-02-27 2009-12-30 阳正云 一种柔性生态挡土墙
US20130022404A1 (en) * 2011-07-21 2013-01-24 Norm Stinson Method and system for creating a flood barrier

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3137689A1 (de) 2017-03-08
WO2015167341A1 (en) 2015-11-05
PL3137689T3 (pl) 2020-11-02
NL2012739B1 (en) 2016-02-19

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