EP0213259B1 - Etanchement postérieure de décharges - Google Patents

Etanchement postérieure de décharges Download PDF

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Publication number
EP0213259B1
EP0213259B1 EP86100839A EP86100839A EP0213259B1 EP 0213259 B1 EP0213259 B1 EP 0213259B1 EP 86100839 A EP86100839 A EP 86100839A EP 86100839 A EP86100839 A EP 86100839A EP 0213259 B1 EP0213259 B1 EP 0213259B1
Authority
EP
European Patent Office
Prior art keywords
profile
soil
planer
profile strips
conveyor
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.)
Expired - Lifetime
Application number
EP86100839A
Other languages
German (de)
English (en)
Other versions
EP0213259A2 (fr
EP0213259A3 (en
Inventor
Aloys Schlütter
Klaus Kaewert
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.)
Huels Troisdorf AG
Original Assignee
Huels Troisdorf AG
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 Huels Troisdorf AG filed Critical Huels Troisdorf AG
Priority to AT86100839T priority Critical patent/ATE56235T1/de
Publication of EP0213259A2 publication Critical patent/EP0213259A2/fr
Publication of EP0213259A3 publication Critical patent/EP0213259A3/de
Application granted granted Critical
Publication of EP0213259B1 publication Critical patent/EP0213259B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/002—Ground foundation measures for protecting the soil or subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/006—Sealing of existing landfills, e.g. using mining techniques

Definitions

  • the invention relates to a method for the subsequent sealing of landfills and / or contaminated areas, a seal being brought under the landfill and / or contaminated area by successively pulling in and / or inserting profile strands which connect to form a sealing membrane when it is pulled in or subsequently to be connected to a waterproofing membrane.
  • landfills in particular landfills, were often built with inadequate waterproofing towards the groundwater or without waterproofing at all, so that pollutants can seep into the ground with the surface water and get into the groundwater.
  • pollutants can seep into the ground with the surface water and get into the groundwater.
  • contaminated areas e.g. Industrial areas on which chemical residues, especially hydrocarbon compounds and / or heavy metals, have deposited.
  • the horizontal seal should also be produced by successively pulling and / or pushing profile strands through the soil.
  • the respective drawn and / or pushed profile strand connects to the profile strand previously inserted.
  • the profile strands are provided with a lock at the corresponding ends.
  • a profile strand has a profile on the side facing the other profile strand, with which it can grip around and / or engage in the adjacent profile strand.
  • it also encompasses or engages in the corresponding side of the adjacent profile strand.
  • the professional strands are preferably made of a plastic material, but they can also consist of steel or be provided with a steel reinforcement or be provided with a steel casing.
  • the profile strands are preferably drawn in by a previous tool. The retraction can be supported by pushing. In the case of smaller profile strand lengths, the leading tool can also be disregarded. The profile strands are then rammed into the sheet pile similar to the individual channel planks.
  • the leading tool has the task of drilling an earth hole, especially in the case of larger extruded lengths.
  • the earth hole preferably has a slightly larger diameter than the subsequent profile strand. This serves to compensate for a narrowing of the earth hole that occurs after the tool has passed through.
  • the leading tool can also be tied up. That is, the tool is guided on the ". Profile strands already introduced. However, the tool can also produce a targeted bore independently of the introduced profile strands. Such unbound bores are then carried out with suitable control devices to prevent the drilling apparatus from migrating. Without a control device the drill moves in the direction where the surrounding soil shows less resistance, which is particularly dangerous in the direction of the already laid profile strands, so that the already laid profile strands can easily be damaged or destroyed.
  • the use of controlled drilling rigs can preclude the attachment of profile strands.
  • the earth borehole produced is filled with bentonite or similar means in order to prevent the earth borehole from collapsing when the drilling device is pulled out for the subsequent retraction of the profile strand.
  • this can also be unnecessary. This applies above all to earth bores with small dimensions.
  • the object of the invention is to avoid comminution work, while adhering to the principle of tied earth bores.
  • this is achieved in that the soil is at least partially dismantled when the profile strands are inserted or retracted.
  • DE-A 3 407 382 It is known from DE-A 3 407 382 to provide a subsequent seal underneath a landfill or similar locations.
  • the known method is foreign to the genus because bores or working pipes are made at a distance from one another below the landfill body.
  • the soil between the pipes is broken down and the resulting cavity is filled with a sealant.
  • the injecting of sealants assumes to inject sealing material below the landfill body in such a way that it forms a uniform and closed seal.
  • the degradation according to the invention is optionally carried out by rinsing and / or breaking out. It can be advantageous to slightly compact at least the layers lying above the borehole. The purpose of compaction is to prevent these layers of earth from peeling open. The resulting loose soil can make it difficult to pull in the extruded section.
  • the thickness of the compacted layer of earth is 5-100 mm according to the invention.
  • the excavated soil is removed by hollow profile strands. I.e. the profile strands serve as conveyors. A tied hole is made in that the profile strands also form a guide for the mining device.
  • a planer or a shearer loader serves as the excavation device.
  • the planer is provided with planing surfaces in the direction of movement both at the front and at the back or reversible.
  • traction devices are available which attack the planer at the front and rear.
  • Chains or ropes serve as traction devices. The chains or ropes can run in the previously laid profile strand.
  • the planer is also designed as an earth ram and / or coupled with an earth ram.
  • the earth pile can act intermittently and intervene if the soil becomes stiff, especially for the penetration of rock inclusions in the soil.
  • the plane can also be moved with the ram alone.
  • the planer can be provided with a nozzle for water and / or lubricant.
  • a lubricant e.g. Bentonite into consideration.
  • the lubricant should make it easier to pull in a profile strand attached to the planer.
  • the water nozzle can be used as a cutting and / or flushing device with a correspondingly high water pressure and alignment with the soil to be removed.
  • the supply lines for the nozzle are drawn from the planer or carried in the profile strand drawn from the planer. This also applies to the supply line required to operate the earth ram. This is a compressed air line for pneumatic drum drives, and a hydraulic line for hydraulic drives.
  • the planer can be provided with a plurality of cutting teeth or cutting surfaces which, starting with the first tooth or surface in the working direction of the planer, have an increasing distance in the subsequent cutting teeth or cutting surfaces.
  • the distance between the cutting teeth or cutting surfaces determines the maximum grain size of the soil entering the conveyor. With a suitable choice of spacing, the grain size can be used to ensure that there are no blockages in the conveyor troughs formed by the profile strands.
  • these forces also compact the soil or displace it.
  • displacement displaces the layer of earth adjacent to the borehole, which in the above sense prevents it from opening up.
  • the planer has displacement surfaces on the outside of the cutting teeth or cutting surfaces.
  • Displacement surfaces whose displacement direction is perpendicular to the sealing surface from the view along the plane of the plane are particularly advantageous. This causes the adjacent soil to be compacted at the top and bottom, while there is less compaction in the direction of mining. In the direction of degradation, displacement can also be completely dispensed with.
  • the profile strands form a conveyor for the excavated soil in that the profile strands consist of a hollow profile, which is provided on both sides with a lock for connection to the adjacent profile strands.
  • a scratch or a screw conveyor can run in the hollow profile.
  • the screw conveyor has significantly smaller dimensions than the conveyor trough and a large pitch. This prevents blockages in the conveyor with the excavated soil.
  • the conveyor is reversible in its direction of conveyance.
  • the reversal is mainly used to shorten the conveyor route. After exceeding half the tunneling length, the excavation can be removed by the shortest route by reversing the direction of rotation of the screw conveyor. The excavation then reaches the opposite end of the already laid profile strand in the existing excavation pit.
  • a chain scraper is also suitable as a conveyor.
  • the chain scraper then has a chain that runs through the already laid profile strand.
  • a scratch can also be used, the drivers of which are arranged on a rod so as to be pivotable. With a reciprocating rod movement, the penetrating soil is then gradually moved forward with swinging carriers.
  • the profile strand 1 is drawn in with a slight inclination towards one end below a landfill.
  • the profile strand 1 consists of three tubes 1 a, 1b and 1c, which are welded together. With the pipe 1 a, the profile strand sits in a profile strand 2 which has been drawn in before the profile strand 1.
  • the section 2 shown in dash-dotted lines consists of the same tubes as the section 1.
  • the tube 1 is slotted over its entire length to accommodate the closed tube of the next profile strand.
  • a planing tool 3 slides on the profile strand 1.
  • the planing tool 3 comprises the profile strand 1 on the tubes 1b and 1c outside.
  • the planer 3 is profiled in its part 3a protruding above the profile strand 1 like the profile strand 1 on the tubes 1b and 1c.
  • the planer 3 with its cutting surfaces 6 peels soil, which is then fed to the slot of the tube 1 via sliding surfaces inclined to the longitudinal axis of the plane and penetrates through the slot into the tube 1c.
  • the soil is continuously discharged from a rotating screw conveyor 7 through the pipe 1 to an end of the extruded profile.
  • the screw conveyor 7 is pulled out of the pipe 1c.
  • the screw conveyor 1 c is provided with a flexible axis.
  • the plane 3 is moved with an earth ram 8.
  • the next profile strand is attached to the earth rams 8, so that it is also moved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Processing Of Solid Wastes (AREA)
  • External Artificial Organs (AREA)
  • Sealing Devices (AREA)
  • Diaphragms And Bellows (AREA)

Claims (19)

1. Procédé pour rendre étanches, en reprise, des décharges et/ou des surfaces contaminées, dans lequel on réalise un étanchement sous la décharge et/ou sous la surface contaminée, en insérant par traction des profilés successifs (1, 2), chaque profilé (1, 2) se reliant lors de son insertion par traction directement avec les profilés insérés précédemment, caractérisé en ce que lors de l'insertion par traction ou par poussée des profilés successifs (1, 2), on abat, au moins partiellement, le sol qui s'oppose à l'insertion par traction ou par poussée.
2. Procédé selon la revendication 1, caractérisé en ce que le sol à abattre (4) est extrait par voie hydraulique ou par cassure.
3. Procédé selon la revendication 1 ou 2, caractérisé par un compactage simultané d'au moins la zone de sol qui se trouve au-dessus de la couche de sol à abattre.
4. Procédé selon la revendication 3, caractérisé en ce que l'épaisseur de la couche de terre compactée est comprise entre 5 et 100 cm.
5. Procédé selon une ou plusieurs des revendications 1 à 4, caractérisé en ce que le sol abattu est évacué par des profilés (1) de forme creuse.
6. Procédé selon une ou plusieurs des revendications 1 à 5, caractérisé en ce qu'un appareil d'abattage est guidé sur le profilé (1) déjà posé.
7. Dispositif pour l'extraction du procédé selon une ou plusieurs des revendications 1 à 6, caractérisé par un appareil d'abattage (3) et par des profilés (1, 2) qui forment, d'un côté, un transporteur (7) pour le sol extrait et un guide pour l'appareil d'abattage.
8. Dispositif selon la revendication 7, caractérisé en ce que l'appareil d'abattage est conçu comme un rabot (3) ou comme un rouleau haveur.
9. Dispositif selon la revendication 8, caractérisé en ce que le rabot (3) présente des surfaces de rabotage aussi bien à l'avant qu'à l'arrière, dans la direction du mouvement, et/ou qu'il est réversible.
10. Dispositif selon la revendication 9, caractérisé en ce que le rabot (3) est poussé au moyen d'un mouton (8) et/ou qu'il est lui-même conçu comme mouton.
11. Dispositif selon l'une ou plusieurs des revendications 8 à 10, caractérisé en ce que le rabot (3) est en outre équipé d'au moins une buse pour de l'eau et/ou un lubrifiant.
12. Dispositif selon une ou plusieurs des revendications 8 à 10, caractérisé en ce que le rabot (3) présente plusieurs dents de coupe ou surfaces de coupe (6) qui, en commençant par la première dent ou par les premières surfaces de coupe (6) dans la direction de travail du rabot (3), se trouvent, pour les dents de coupe ou les surfaces de coupe (6) successives, à une distance croissante du profilé (1
13. Dispositif selon l'une ou plusieurs des revendications 8 à 12, caractérisé en ce que le rabot (3) présente sur sa périphérie extérieure des surfaces de refoulement.
14. Dispositif selon la revendication 13, caractérisé en ce qu'il est prévu deux surfaces de refoulement situées en vis-à-vis et dont la direction de refoulement, vu selon l'axe longitudinal du rabot, est perpendiculaire à la surface de compactage.
15. Dispositif selon la revendication 12 ou 13, caractérisé par une buse pour lubrifiant sur les surfaces de refoulement.
16. Dispositif selon une ou plusieurs des revendications 7 à 15, caractérisé en ce que le transporteur est formé par une vis transporteuse (7) ou par un transporteur à raclettes passant dans le profilé (1
17. Dispositif selon la revendication 1, caractérisé en ce que les profilés (1) sont constitués d'un profilé creux (1 b) muni, des deux côtés, d'un verrou (1a, 1 c) pour la liaison avec les profilés posés respectivement juste avant et juste après et en ce que la vis transporteuse (7) est disposée dans la profilé creux (1c).
18. Dispositif selon la revendication 17, caractérisé en ce que les profilés présentent, du côté opposé au profilé (2) posé précédemment, un profil (1c), en forme de goulotte, qui reçoit la vis transporteuse (7).
19. Dispositif selon l'une ou plusieurs des revendications 17 à 19, caractérisé en ce que le sens de rotation de la vis transporteuse (7) peut s'inverser.
EP86100839A 1985-08-31 1986-01-22 Etanchement postérieure de décharges Expired - Lifetime EP0213259B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86100839T ATE56235T1 (de) 1985-08-31 1986-01-22 Nachtraegliche deponieabdichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3531183 1985-08-31
DE19853531183 DE3531183A1 (de) 1985-08-31 1985-08-31 Nachtraegliche deponieabdichtung

Publications (3)

Publication Number Publication Date
EP0213259A2 EP0213259A2 (fr) 1987-03-11
EP0213259A3 EP0213259A3 (en) 1988-02-10
EP0213259B1 true EP0213259B1 (fr) 1990-09-05

Family

ID=6279859

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86100839A Expired - Lifetime EP0213259B1 (fr) 1985-08-31 1986-01-22 Etanchement postérieure de décharges

Country Status (3)

Country Link
EP (1) EP0213259B1 (fr)
AT (1) ATE56235T1 (fr)
DE (2) DE3531183A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7127834B2 (en) 1988-07-15 2006-10-31 Anatomic Research, Inc. Shoe sole structures using a theoretically ideal stability plane

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3535328A1 (de) * 1985-10-03 1987-04-09 Niederberg Chemie Sanierung von deponien
DE3728569A1 (de) * 1987-08-27 1989-03-16 Richter Hans Verfahren und vorrichtung zum nachtraeglichen einbau einer untergrundabdichtung im bereich des grundwassers unter muelldeponien
DE4209714A1 (de) * 1992-03-25 1993-09-30 Rohrbau Nord Oldenburg Gmbh & Verfahren zur Abdichtung der Basis einer Deponie
DE19940774C2 (de) * 1999-08-27 2003-03-06 Keller Grundbau Gmbh Verfahren und Vorrichtung zum Herstellen von flächenhaften Dichtelementen im Erdboden

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1658773B1 (de) * 1968-02-28 1971-08-26 Wolff & Mueller Tunnelbauverfahren
DE2138123A1 (de) * 1970-08-04 1973-02-08 Welzow Braunkohle Schachtbau Dichtungswand, vorzugsweise fuer abriegelungen im untergrund
DE2250635C3 (de) * 1972-10-16 1975-03-20 Nishimatsu Construction Co., Ltd., Tokio Verfahren zur Herstellung eines Tunnels
DE3407382C2 (de) * 1984-02-29 1994-08-04 Zueblin Ag Verfahren zur Fertigung einer etwa waagrechten Dichtungsschicht und Vorrichtung zur Durchführung des Verfahrens

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7127834B2 (en) 1988-07-15 2006-10-31 Anatomic Research, Inc. Shoe sole structures using a theoretically ideal stability plane

Also Published As

Publication number Publication date
EP0213259A2 (fr) 1987-03-11
EP0213259A3 (en) 1988-02-10
ATE56235T1 (de) 1990-09-15
DE3673921D1 (de) 1990-10-11
DE3531183A1 (de) 1987-03-12

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