EP0328608B1 - Process and device for subsequent incorporation of an underground seal under a refuse dump - Google Patents

Process and device for subsequent incorporation of an underground seal under a refuse dump Download PDF

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Publication number
EP0328608B1
EP0328608B1 EP88907312A EP88907312A EP0328608B1 EP 0328608 B1 EP0328608 B1 EP 0328608B1 EP 88907312 A EP88907312 A EP 88907312A EP 88907312 A EP88907312 A EP 88907312A EP 0328608 B1 EP0328608 B1 EP 0328608B1
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EP
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Prior art keywords
advance
shield
tunnel
tunnel pipeline
advance shield
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EP88907312A
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German (de)
French (fr)
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EP0328608A1 (en
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Hans Richter
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C41/00—Methods of underground or surface mining; Layouts therefor
    • 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 retrofitting an underground waterproofing under a landfill according to the preamble of claim 1 and an apparatus for performing the method.
  • Such a method is the subject of EP-A-0 230 667.
  • two construction pits running parallel to one another are built at the edge of the landfill, the depth of which corresponds to the depth at which the landfill is to be passed.
  • the tunneling shield then drives underneath the landfill from one construction pit to the other, with soil being mined on its front. Soil is filled in at the back of the tunneling shield and a strip of a sealing layer is introduced.
  • the tunneling shield is supplied and disposed of through a tunnel pipe installed in this underpass, which is composed of individual tunnel pipe rings.
  • the tunneling shield Once the tunneling shield has reached the other excavation pit, it is moved through 180 ° and drives under the landfill in the direction of the one excavation pit, with an adjacent strip of a covering layer being introduced and at the same time the previously constructed tunnel tube being dismantled. After reaching one excavation pit, the tunneling shield is moved again by 180 ° and drives under the landfill as described above in the direction of the other excavation pit, with a new tunnel pipe being laid.
  • the disadvantage here is that when dismantling the tunnel tube, if the tunneling shield from one to the other Excavation pit moves, the dismantled tunnel pipe rings either have to be carried by the tunneling shield or have to be transported through the still existing piece of tunnel pipe.
  • the object is to improve the method in such a way that the dismantling of the tunnel tube does not pose any difficulties.
  • the method consists in laying a tunnel pipe at the foot of the landfill in a trench, along which a feed press moves along the side facing the landfill, which picks up the soil on the front and compresses it on the back, with one continuously on the back water-impermeable layer is introduced as a strip and the tube rings of the tunnel tube are continuously dismantled with the advance of the press and laterally offset to be reassembled to form a new tunnel tube.
  • the tunneling shield can be a film roll have, which unwinds continuously by the advancing movement of the sign, such that the film comes to rest under the landfill. Also continuously with the feed movement, the film is welded to the edge of the previously laid film.
  • the device is turned through 180 ° so that it can insert and weld the next film web under the landfill in the same way.
  • the tube rings of the tunnel tube are partially inclined, so that bending of the tunnel tube is possible by radial twisting.
  • the sealing base can be installed like a trough at the ends up to the surface of the earth under the landfill.
  • a personal pressure lock and an inlet funnel for mineral sealing materials which can be installed above and below the film, can be arranged.
  • Conveying devices for transporting the sealing materials are arranged inside the tube. The energy supply for the conveyor systems and the tunneling shield follow along the tunnel tube.
  • the tunnel tube can be filled with compressed air to retain any groundwater in the partially open tunneling shield.
  • the ventilation is done by pressure pipes.
  • the tunneling shield consists of a base plate and a cover plate that projects above it and is connected to a hydraulic cylinder.
  • the hydraulic cylinders are moved more or less quickly when the advance shield penetrates into the ground in order to reduce the roof pressure.
  • a horizontal feed press At the rear end is above the rolling film a horizontal feed press, behind the folded upper part of which the soil removed in front of the tunneling shield is filled and pressed.
  • the shield of the feed press on the back is made twice so that filter material (gravel) to be installed can be installed on the film surface.
  • the gravel is transported through the rear tunnel tube.
  • the clay to be installed under the film is transported along the tunnel tube on the front.
  • the top and bottom plates of the tunneling shield have movable knife shields at the front and rear end that enable horizontal control.
  • the vertical control is carried out by correspondingly different loading of the horizontal feed press and a hydraulic cylinder supported on the rear tunnel tube.
  • Another feature of the method is that the individual tunnel tube rings have a horizontal separation joint, so that these element halves can be transported along the tunnel tube and installed or removed in the tunneling shield in the event of length changes.
  • the individual tunnel tube rings can be watertightly connected to one another by means of automatically operated hydraulic quick releases.
  • the tunneling shield consisting of the roof plate 2 and the base plate 3, which are connected to one another via the vertical hydraulic cylinders 5. Knife plates 4a, 4b, can be pivoted on the plates 2, 3 at the front and rear in each case about horizontal axes, 4c and 4d arranged.
  • the rear feed press 6 has an upper, horizontally articulated plate 7. The plate 7 is actuated by a hydraulic cylinder 8. The feed takes place by means of the press 6 by actuating the hydraulic cylinder 9.
  • the film roll 10 rotates in the direction of the arrow 11, so that the film 12 comes to rest under the landfill 1. At 13, the film web 12 is welded to the film web 14 laid in the previous pass.
  • the tunneling shield moves in the direction of arrow 15.
  • the drainage material (gravel) to be installed on the film is transported through the rear tunnel tube and the clay 17 to be installed under the film is transported through the front tunnel tube.
  • the clay and the gravel are each introduced through a funnel 18 onto the conveyor belt in the tunnel tubes.
  • the personnel lock 19 at the end and beginning of the tunnel tubes hermetically seals them.
  • the tunnel tube rings 20 are alternately divided at an angle and connected to one another by hydraulic quick-releases 22.
  • 23 represents a clearing device for mining the soil.
  • the mined material is transported along arrow direction 24 behind the rear feed press 6 and its plate 7.
  • the tunnel tube ring 25 is moved along the arrow direction 26 in the position 25 'and there connected to the tunnel tube ring 28 by means of the hydraulic clamping devices 22.
  • the hydraulic cylinder 27 is supported on the ring 28.
  • 29 shows the horizontal parting line of the rings for separation in two half-shells. 29 'shows the offset of the parting line 29 in order to achieve the angling of the tunnel tube shown in FIG. 1.
  • 30 is the foil sealer.
  • a tunnel pipe consisting of the tunnel pipe rings 20 is laid along the landfill in an excavation pit, for example the upper tunnel pipe according to FIG. 2 . Gravel is applied to this part of the film 12.
  • the clearing device 23 can be moved horizontally and vertically between the plates 2 and 3.
  • the excavated soil reaches the plate 7 via a conveyor belt in the direction of arrow 24 and behind the press 6 to the gravel layer located on the film 12.
  • the last tunnel tube ring 20 is then transported between the plates 2, 3 in the direction of arrow 26 to form a further tunnel tube, in FIG. 2 the lower tunnel tube.
  • This procedure is now repeated, ie applying gravel to the further unwound film 12, Dismantling the soil next to one tunnel pipe in front of the tunneling shield, moving this soil behind the tunneling shield next to the other tunneling pipe, placing the clay layer in front of the tunneling shield and next to the one tunneling pipe, pressing the excavated soil behind the tunneling shield next to the other tunneling pipe while simultaneously advancing the tunneling shield and removal of the last tunnel tube ring from one tunnel tube and attachment to the further tunnel tube.
  • one tunnel pipe is dismantled and another tunnel pipe is built at the same time.
  • a layer of clay was introduced, a film was laid on the clay layer during the dismantling of this other tunnel tube and when laying the next tunnel tube, applied to this gravel and the mined soil compacted over this layer of gravel.
  • the tunneling shield When the excavated soil behind the tunneling shield is compacted, the tunneling shield can be pulled forward by hydraulic drives on one tunnel pipe and supported on the other tunnel pipe by the hydraulic cylinder 27, which promotes the feed movement in the direction of arrow 15.
  • the gravel can be fed through one tunnel pipe, while the clay is fed through the other tunnel pipe. Cleared soil can also be transported away via one of the two tunnel tubes, which is necessary if the cleared soil cannot be pressed sufficiently behind the tunneling shield.
  • Pipe system for suctioning seepage water This pipeline system is connected to a pump station and a treatment station, the latter being chemically treated in the latter. It is then fed anew to the surface of the landfill for washing out pollutants.
  • tunnel tube rings 20 alternately have an end face 21 that runs perpendicularly and obliquely to the tube axis, it is possible to bend the tunnel tube rings 20 about their axis, as shown in FIG. 1 on the right.
  • the cover plate 2 of the tunneling shield is preferably significantly larger than the base plate 3.
  • the tunneling shield has laterally movable shields 31.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Remote Sensing (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Processing Of Solid Wastes (AREA)
  • Lining And Supports For Tunnels (AREA)

Abstract

To force a feed press (6) with a continuously unwinding sheet coil (10) along a tunnel pipe consisting of individual members and located below the refuse dump (1) the soil is taken in at the front end and pushed out at the rear end by a plunger piston (9). The individual tunnel pipe segments are continuously uncoupled by the forward movement from the other pipes, laterally displaced and reattached to a tunnel pipe projecting from the rear of the device. The ends of the tunnel pipes are fitted with man locks (19) and material locks. The whole system can be filled with compressed air to exclude groundwater. The tunnel pipes provide an escape, and serve for ventilation and material transport.

Description

Die Erfindung betrifft ein Verfahren zum nachträglichen Einbau einer Untergrundabdichtung unter einer Mülldeponie nach dem Oberbegriff des Anspruches 1 sowie eine Vorrichtung zur Durchführung des Verfahrens.The invention relates to a method for retrofitting an underground waterproofing under a landfill according to the preamble of claim 1 and an apparatus for performing the method.

Ein solches Verfahren ist Gegenstand der EP-A-0 230 667. Bei diesem Verfahren werden am Rand der Deponie zwei parallel zueinander verlaufende Baugruben errichtet, deren Tiefe der Tiefe entspricht, an der die Deponie unterfahren werden soll. Das Vortriebsschild unterfährt dann die Deponie von der einen zur anderen Baugrube, wobei an seiner Vorderseite Erdreich abgebaut wird. An der Rückseite des Vortriebsschilds wird mit Erdreich verfüllt und dabei ein Streifen einer abdichtenden Schicht eingebracht. Die Ver- und Entsorgung des Vortriebsschilds erfolgt durch ein bei diesem Unterfahren errichtetes Tunnelrohr, das aus einzelnen Tunnelrohrringen zusammengesetzt ist. Hat das Vortriebsschild die andere Baugrube erreicht, wird es um 180° umgesetzt und unterfährt die Deponie in Richtung der einen Baugrube, wobei ein benachbarter Streifen einer abdeckenden Schicht eingebracht und gleichzeitig das zuvor errichtete Tunnelrohr abgebaut wird. Nach Erreichen der einen Baugrube wird das Vortriebsschild erneut um 180° umgesetzt und unterfährt die Deponie wie zuvor beschrieben in Richtung der anderen Baugrube, wobei von neuem ein Tunnelrohr verlegt wird.Such a method is the subject of EP-A-0 230 667. In this method, two construction pits running parallel to one another are built at the edge of the landfill, the depth of which corresponds to the depth at which the landfill is to be passed. The tunneling shield then drives underneath the landfill from one construction pit to the other, with soil being mined on its front. Soil is filled in at the back of the tunneling shield and a strip of a sealing layer is introduced. The tunneling shield is supplied and disposed of through a tunnel pipe installed in this underpass, which is composed of individual tunnel pipe rings. Once the tunneling shield has reached the other excavation pit, it is moved through 180 ° and drives under the landfill in the direction of the one excavation pit, with an adjacent strip of a covering layer being introduced and at the same time the previously constructed tunnel tube being dismantled. After reaching one excavation pit, the tunneling shield is moved again by 180 ° and drives under the landfill as described above in the direction of the other excavation pit, with a new tunnel pipe being laid.

Hierbei ist nachteilig, daß beim Abbau des Tunnelrohrs, wenn das Vortriebsschild von der einen zur anderen Baugrube verfährt, die abgebauten Tunnelrohrringe entweder vom Vortriebsschild mitgeführt oder durch das noch vorhandene Tunnelrohrstück transportiert werden müssen.The disadvantage here is that when dismantling the tunnel tube, if the tunneling shield from one to the other Excavation pit moves, the dismantled tunnel pipe rings either have to be carried by the tunneling shield or have to be transported through the still existing piece of tunnel pipe.

Es besteht die Aufgabe, das Verfahren so zu verbessern, daß der Abbau des Tunnelrohres keine Schwierigkeiten bereitet.The object is to improve the method in such a way that the dismantling of the tunnel tube does not pose any difficulties.

Gelöst wird diese Aufgabe durch die kennzeichnenden Merkmale des Anspruches 1. Eine Vorrichtung zur Ausführung des Verfahrens und Vorteilhafte Ausgestaltungen des Verfahrens sind den Unteransprüchen entnehmbar.This object is achieved by the characterizing features of claim 1. A device for carrying out the method and advantageous refinements of the method can be found in the subclaims.

Ausführungsbeispiele der Erfindung werden nachfolgend anhand der Zeichnungen näher erläutert. Es zeigen:

  • Fig. 1 einen Vertikalschnitt durch eine Mülldeponie und eine Ausführungsform der Vorrichtung;
  • Fig. 2 einen Horizontalschnitt durch die Mülldeponie und die Vorrichtung und
  • Fig. 3 einen weiteren Schnitt längs der Linie III-III.
Exemplary embodiments of the invention are explained in more detail below with reference to the drawings. Show it:
  • Figure 1 is a vertical section through a landfill and an embodiment of the device.
  • Fig. 2 shows a horizontal section through the landfill and the device and
  • Fig. 3 shows a further section along the line III-III.

Das Verfahren besteht darin, daß ein Tunnelrohr am Fuße der Deponie in einem Graben verlegt wird, an dem sich an der Deponie zugewandten Seite eine Vorschubpresse entlang bewegt, die das Erdreich an der Vorderseite aufnimmt und an der Rückseite verpresst, wobei kontinuierlich an der Rückseite eine wasserundurchlässige Schicht als Streifen eingebracht wird und wobei kontinuierlich mit dem Vortrieb der Presse die Rohrringe des Tunnelrohrs abgebaut und seitlich versetzt zu einem neuen Tunnelrohr wieder zusammengesetzt werden. Das Vortriebsschild kann eine Folienrolle aufweisen, die sich durch die Vorschubbewegung des Schilds kontinuierlich abwickelt, derart, daß die Folie unter der Deponie zu liegen kommt. Ebenfalls kontinuierlich mit der Vorschubbewegung wird die Folie mit dem Rand der vorher verlegten Folie verschweißt. Am Ende der Deponie wird die Vorrichtung um 180° gewendet, so daß sie die nächste Folienbahn auf die gleiche Art und Weise unter der Deponie einbringen und verschweißen kann.The method consists in laying a tunnel pipe at the foot of the landfill in a trench, along which a feed press moves along the side facing the landfill, which picks up the soil on the front and compresses it on the back, with one continuously on the back water-impermeable layer is introduced as a strip and the tube rings of the tunnel tube are continuously dismantled with the advance of the press and laterally offset to be reassembled to form a new tunnel tube. The tunneling shield can be a film roll have, which unwinds continuously by the advancing movement of the sign, such that the film comes to rest under the landfill. Also continuously with the feed movement, the film is welded to the edge of the previously laid film. At the end of the landfill, the device is turned through 180 ° so that it can insert and weld the next film web under the landfill in the same way.

Die Rohrringe des Tunnelrohrs sind teilweise schräg ausgebildet, so daß durch radiales Verdrehen Abknickungen des Tunnelrohrs möglich sind. Auf diese Weise kann die Dichtsohle wannenartig an den Enden bis zur Erdoberfläche hochgezogen unter der Deponie eingebaut werden.The tube rings of the tunnel tube are partially inclined, so that bending of the tunnel tube is possible by radial twisting. In this way, the sealing base can be installed like a trough at the ends up to the surface of the earth under the landfill.

An den Enden des Tunnelrohrs können je eine Personendruckschleuse, sowie ein Einlauftrichter für mineralische Dichtmaterialien, die oberhalb und unterhalb der Folie zum Einbau gelangen können, angeordnet sein. Innerhalb des Rohrs sind Fördereinrichtungen zum Transport der Dichtungsmaterialien angeordnet. Die Energieversorgung für die Fördereinrichtungen und das Vortriebsschild folgen längs des Tunnelrohrs.At the ends of the tunnel pipe, a personal pressure lock and an inlet funnel for mineral sealing materials, which can be installed above and below the film, can be arranged. Conveying devices for transporting the sealing materials are arranged inside the tube. The energy supply for the conveyor systems and the tunneling shield follow along the tunnel tube.

Um eventuelles Grundwasser in dem teils offenen Vortriebsschild zurückzuhalten, kann das Tunnelrohr mit Druckluft gefüllt werden. Die Belüftung geschieht durch Druckrohre.The tunnel tube can be filled with compressed air to retain any groundwater in the partially open tunneling shield. The ventilation is done by pressure pipes.

Das Vortriebsschild besteht aus einer Grundplatte und einer diese überragenden Deckplatte, die mit Hydraulikzylinder verbunden sind. Die Hydraulikzylinder werden mehr oder weniger schnell bewegt beim Vordringen des Vortriebsschilds in das Erdreich, um den Dachdruck zu vermindern. Am rückwärtigen Ende über der sich abrollenden Folie befindet sich eine horizontale Vorschubpresse, hinter deren abgeklapptes Oberteil das vor dem Vortriebsschild abgebaute Erdreich verfüllt und verpresst wird. Das Schild der rückseitigen Vorschubpresse ist doppelt ausgeführt, so daß auf der Folienoberfläche einzubauendes Filtermaterial (Kies) eingebaut werden kann. Der Kies wird durch das rückwärtige Tunnelrohr antransportiert. Der unter der Folie einzubauende Lehm wird entlang des vorseitigen Tunnelrohrs antransportiert. Die Umlenkung dieser Materialien vom Förderband zu den Einbauplätzen erfolgt durch Rohre, Leitbleche ect..The tunneling shield consists of a base plate and a cover plate that projects above it and is connected to a hydraulic cylinder. The hydraulic cylinders are moved more or less quickly when the advance shield penetrates into the ground in order to reduce the roof pressure. At the rear end is above the rolling film a horizontal feed press, behind the folded upper part of which the soil removed in front of the tunneling shield is filled and pressed. The shield of the feed press on the back is made twice so that filter material (gravel) to be installed can be installed on the film surface. The gravel is transported through the rear tunnel tube. The clay to be installed under the film is transported along the tunnel tube on the front. These materials are diverted from the conveyor belt to the installation locations by pipes, baffles, etc.

Deck- und Bodenplatte des Vortriebsschilds tragen am vorderseitigen und rückseitigen Ende bewegliche Messerschilde, die eine Horizontalsteuerung ermöglichen. Die Vertikalsteuerung erfolgt durch entsprechende unterschiedliche Beaufschlagung der horizontalen Vorschubpresse und eines sich auf dem rückwärtigen Tunnelrohr abstützenden Hydraulikzylinders.The top and bottom plates of the tunneling shield have movable knife shields at the front and rear end that enable horizontal control. The vertical control is carried out by correspondingly different loading of the horizontal feed press and a hydraulic cylinder supported on the rear tunnel tube.

Ein weiteres Merkmal des Verfahrens ist, daß die einzelnen Tunnelrohrringe eine horizontale Trennungsfuge besitzen, so daß diese Elementhälften entlang des Tunnelrohrs transportiert und im Vortriebsschild bei Längenverschiebungen ein- oder ausgebaut werden können.Another feature of the method is that the individual tunnel tube rings have a horizontal separation joint, so that these element halves can be transported along the tunnel tube and installed or removed in the tunneling shield in the event of length changes.

Die einzelnen Tunnelrohrringe können durch automatisch zu bedienende Hydraulikschnellspanner wasserdicht miteinander verbunden werden.The individual tunnel tube rings can be watertightly connected to one another by means of automatically operated hydraulic quick releases.

Unter der Deponie 1 befindet sich das Vortriebsschild, bestehend aus der Dachplatte 2 und der Bodenplatte 3, die über die vertikalen Hydraulikzylinder 5 miteinander verbunden sind. An den Platten 2, 3 sind vorne und hinten jeweils um horizontale Achsen schwenkbar Messerschilde 4a, 4b, 4c und 4d angeordnet. Die rückwärtige Vorschubpresse 6 weist eine obere, horizontal angelenkte Platte 7 auf. Die Platte 7 wird durch einen Hydraulikzylinder 8 betätigt. Der Vorschub erfolgt mittels der Presse 6 durch Betätigen des Hydraulikzylinders 9. Die Folienrolle 10 dreht sich in Pfeilrichtung 11, so daß die Folie 12 unter der Deponie 1 zu liegen kommt. Bei 13 wird die Folienbahn 12 mit der im vorigen Durchgang verlegten Folienbahn 14 verschweißt. Das Vortriebsschild bewegt sich in Pfeilrichtung 15.Under the landfill 1 is the tunneling shield, consisting of the roof plate 2 and the base plate 3, which are connected to one another via the vertical hydraulic cylinders 5. Knife plates 4a, 4b, can be pivoted on the plates 2, 3 at the front and rear in each case about horizontal axes, 4c and 4d arranged. The rear feed press 6 has an upper, horizontally articulated plate 7. The plate 7 is actuated by a hydraulic cylinder 8. The feed takes place by means of the press 6 by actuating the hydraulic cylinder 9. The film roll 10 rotates in the direction of the arrow 11, so that the film 12 comes to rest under the landfill 1. At 13, the film web 12 is welded to the film web 14 laid in the previous pass. The tunneling shield moves in the direction of arrow 15.

Auf dem Förderband 16 wird durch das rückwärtige Tunnelrohr das auf der Folie einzubauende Drainagematerial (Kies) und durch das vordere Tunnelrohr der unter der Folie einzubauende Lehm 17 antransportiert. Das Einbringen des Lehms sowie des Kieses erfolgt jeweils durch einen Trichter 18 auf das Förderband in den Tunnelrohren. Die Personenschleuse 19 am Ende und Anfang der Tunnelrohre schließt diese hermetisch ab. Die Tunnelrohrringe 20 sind abwechselnd schräg geteilt und durch hydraulische Schnellspanner 22 miteinander verbunden. 23 stellt ein Räumgerät zum Abbauen des Erdreiches dar. Das abgebaute Material wird entlang Pfeilrichtung 24 hinter die rückwärtige Vorschubpresse 6 und dessen Platte 7 transportiert.On the conveyor belt 16, the drainage material (gravel) to be installed on the film is transported through the rear tunnel tube and the clay 17 to be installed under the film is transported through the front tunnel tube. The clay and the gravel are each introduced through a funnel 18 onto the conveyor belt in the tunnel tubes. The personnel lock 19 at the end and beginning of the tunnel tubes hermetically seals them. The tunnel tube rings 20 are alternately divided at an angle and connected to one another by hydraulic quick-releases 22. 23 represents a clearing device for mining the soil. The mined material is transported along arrow direction 24 behind the rear feed press 6 and its plate 7.

Der Tunnelrohrring 25 wird entlang der Pfeilrichtung 26 in die Position 25′ verfahren und dort mit dem Tunnelrohrring 28 mittels der hydraulischen Spannvorrichtungen 22 verbunden. Der Hydraulikzylinder 27 stützt sich auf dem Ring 28 ab. 29 zeigt die horizontale Trennfuge der Ringe zur Trennung in zwei Halbschalen. 29′ zeigt den Versatz der Trennfuge 29, um die in Figur 1 gezeigte Abwinklung des Tunnelrohrs zu erreichen. 30 ist das Folienschweißgerät.The tunnel tube ring 25 is moved along the arrow direction 26 in the position 25 'and there connected to the tunnel tube ring 28 by means of the hydraulic clamping devices 22. The hydraulic cylinder 27 is supported on the ring 28. 29 shows the horizontal parting line of the rings for separation in two half-shells. 29 'shows the offset of the parting line 29 in order to achieve the angling of the tunnel tube shown in FIG. 1. 30 is the foil sealer.

Die Arbeitsweise ist folgende:The procedure is as follows:

Als erstes wird entlang der Deponie in einer Baugrube ein aus den Tunnelrohrringen 20 bestehendes Tunnelrohr verlegt, beispielsweise das obere Tunnelrohr nach Fig. 2. Das Vortriebsschild wird sodann zur Deponie weisend an diesem Tunnelrohr angesetzt und dabei ein Teil der Folie 12 von der Rolle 10 abgezogen. Auf diesem Teil der Folie 12 wird Kies aufgebracht.First, a tunnel pipe consisting of the tunnel pipe rings 20 is laid along the landfill in an excavation pit, for example the upper tunnel pipe according to FIG. 2 . Gravel is applied to this part of the film 12.

Sodann wird durch das Räumgerät 23 das Erdreich neben dem Tunnelrohr abgebaut. Das Räumgerät 23 ist zu diesem Zweck zwischen den Platten 2 und 3 horizontal und vertikal verfahrbar. Das abgebaute Erdreich gelangt über ein Transportband in Pfeilrichtung 24 auf die Platte 7 und hinter die Presse 6 auf die auf der Folie 12 befindliche Kiesschicht.Then the soil next to the tunnel tube is mined by the clearing device 23. For this purpose, the clearing device 23 can be moved horizontally and vertically between the plates 2 and 3. The excavated soil reaches the plate 7 via a conveyor belt in the direction of arrow 24 and behind the press 6 to the gravel layer located on the film 12.

Am vorderen Ende der Bodenplatte 3 wird am Boden anstelle des dort ausgehobenen Erdreichs eine Lehmschicht 17 eingebracht. Sodann wird der Zylinder 8 betätigt, wodurch die Platte 7 nach oben schwenkt, sowie die Zylinder 9 der Presse 6, wodurch die Platte 7 und die Presse 6 das dahinter befindliche Erdreich verdichten und wodurch das Vortriebsschild in Pfeilrichtung 15 verschoben wird. Dabei wird weitere Folie 12 von der Rolle 10 abgewickelt.At the front end of the base plate 3, a layer of clay 17 is introduced on the ground instead of the soil excavated there. Then the cylinder 8 is actuated, whereby the plate 7 swings upward, as well as the cylinder 9 of the press 6, whereby the plate 7 and the press 6 compress the soil behind it and by which the driving shield is moved in the direction of arrow 15. Further film 12 is unwound from the roll 10.

Sodann wird der letzte Tunnelrohrring 20 zwischen den Platten 2, 3 in Richtung des Pfeiles 26 zur Bildung eines weiteren Tunnelrohrs transportiert, in Fig. 2 das untere Tunnelrohr.The last tunnel tube ring 20 is then transported between the plates 2, 3 in the direction of arrow 26 to form a further tunnel tube, in FIG. 2 the lower tunnel tube.

Diese Vorgehensweise wiederholt sich nunmehr, d.h. Aufbringen von Kies auf die weiter abgewickelte Folie 12, Abbau des Erdreichs neben dem einen Tunnelrohr vor dem Vortriebsschild, Verbringen dieses Erdreichs hinter das Vortriebsschild neben dem weiteren Tunnelrohr, Einbringen der Lehmschicht vor dem Vortriebsschild und neben dem einen Tunnelrohr, Verpressen des abgebauten Erdreichs hinter dem Vortriebsschild neben dem weiteren Tunnelrohr bei gleichzeitigem Vorschub des Vortriebsschilds und Abbau des letzten Tunnelrohrringes vom einen Tunnelrohr und Anbau an das weitere Tunnelrohr.This procedure is now repeated, ie applying gravel to the further unwound film 12, Dismantling the soil next to one tunnel pipe in front of the tunneling shield, moving this soil behind the tunneling shield next to the other tunneling pipe, placing the clay layer in front of the tunneling shield and next to the one tunneling pipe, pressing the excavated soil behind the tunneling shield next to the other tunneling pipe while simultaneously advancing the tunneling shield and removal of the last tunnel tube ring from one tunnel tube and attachment to the further tunnel tube.

Auf diese Weise wird jeweils ein Tunnelrohr abgebaut, gleichzeitig ein anderes Tunnelrohr errichtet. Eine Lehmschicht eingebracht, beim Abbau dieses anderen Tunnelrohres und beim Verlegen des nächsten Tunnelrohres eine Folie auf der Lehmschicht verlegt, auf diese Kies aufgebracht und das abgebaute Erdreich über dieser Kiesschicht verdichtet.In this way, one tunnel pipe is dismantled and another tunnel pipe is built at the same time. A layer of clay was introduced, a film was laid on the clay layer during the dismantling of this other tunnel tube and when laying the next tunnel tube, applied to this gravel and the mined soil compacted over this layer of gravel.

Beim Verdichten des abgebauten Erdreichs hinter dem Vortriebsschild kann sich das Vortriebsschild durch Hydraulikantriebe am einen Tunnelrohr vorwärts ziehen und am anderen Tunnelrohr durch den Hydraulikzylinder 27 abstützen, wodurch die Vorschubbewegung in Pfeilrichtung 15 begünstigt wird.When the excavated soil behind the tunneling shield is compacted, the tunneling shield can be pulled forward by hydraulic drives on one tunnel pipe and supported on the other tunnel pipe by the hydraulic cylinder 27, which promotes the feed movement in the direction of arrow 15.

Über das eine Tunnelrohr kann der Kies zugeführt werden, während über das andere Tunnelrohr der Lehm zugeführt wird. Über eines der beiden Tunnelrohre kann auch abgeräumtes Erdreich wegtransportiert werden, was erforderlich ist, wenn sich das abgeräumte Erdreich nicht ausreichend hinter dem Vortriebsschild verpressen läßt.The gravel can be fed through one tunnel pipe, while the clay is fed through the other tunnel pipe. Cleared soil can also be transported away via one of the two tunnel tubes, which is necessary if the cleared soil cannot be pressed sufficiently behind the tunneling shield.

Zusammen mit der Kiesschicht kann auf der Folie 12 auch ein Rohrleitungssystem zum Absaugen von Sickerwasser verlegt werden. Dieses Rohrleitungssystem steht mit einer Pumpenstation und einer Aufbereitungsstation in Verbindung, wobei in letzterer Sickerwasser chemisch aufbereitet wird. Es wird sodann von neuem der Oberfläche der Deponie zum Auswaschen von Schadstoffen zugeführt.Together with the gravel layer, one can also on the film 12 Pipe system for suctioning seepage water. This pipeline system is connected to a pump station and a treatment station, the latter being chemically treated in the latter. It is then fed anew to the surface of the landfill for washing out pollutants.

Da die Tunnelrohrringe 20 abwechselnd eine senkrecht und eine schräg zur Rohrachse verlaufende Stirnseite 21 aufweisen, ist es möglich, durch Verdrehen der Tunnelrohrringe 20 um ihre Achse eine Krümmung des Tunnelrohres zu erreichen, wie dies in Fig. 1 rechts dargestellt ist.Since the tunnel tube rings 20 alternately have an end face 21 that runs perpendicularly and obliquely to the tube axis, it is possible to bend the tunnel tube rings 20 about their axis, as shown in FIG. 1 on the right.

Die Deckplatte 2 des Vortriebsschildes ist bevorzugt deutlich größer als die Grundplatte 3. Um einen seitlichen Einbruch des Erdreichs zu verhindern, weist das Vortriebsschild seitlich bewegliche Schilder 31 auf.The cover plate 2 of the tunneling shield is preferably significantly larger than the base plate 3. In order to prevent the ground from collapsing laterally, the tunneling shield has laterally movable shields 31.

Claims (10)

1. A method of subsequently installing an underground seal under a refuse dump (1) by means of an advance shield which undercuts the refuse dump (1) in strips, and in so doing at its front side removes the earth and transports it to its rear side where it is compressed and thereby executes an advance movement (15), that a strip-like layer (12) of a material which is impermeable to water is installed under the protection of a cover plate (2) of the advance shield, and supplies to and discharge from the advance shield take place through a tunnel pipeline which is composed of individual tunnel pipeline rings (20) which, during the advance movement (15) of the advance shield come to lie under the protection of the cover plate (2) and are then removed, characterised in that continuously with the advance movement of the advance shield the tubular rings (20) of the tunnel pipeline are removed and are laterally offset in order to be reassembled to form an additional tunnel pipeline behind the advance shield.
2. A method as claimed in claim 1, characterised in that the advance shield is drawn forwards by means of hydraulic drive devices attached to the first tunnel pipeline and is supported by the additional tunnel pipeline.
3. A method as claimed in claim 1 or 2, characterised in that in the region of the cover plate (2), as a result of the advance movement of the advance shield, a sheet (12) is unwound next to the additional tunnel pipeline and is welded to the sheeting web which has already been installed in the previous cycle.
4. A method as claimed in one of claims 1 to 3, characterised in that a water-impermeable layer is introduced next to the first tunnel pipeline and in front of the advance shield, where the base plate (3) of the advance shield extends above (sic) the water-impermeable layer.
5. A method as claimed in one of claims 1 to 4, characterised in that excess excavated material and sealing material which is to be installed are transported in the tunnel pipelines.
6. A method as claimed in one of claims 1 to 5, characterised in that man-locks and/or material-locks are arranged at the ends of the tunnel pipelines.
7. A method as claimed in one of claims 1 to 6, characterised in that pipelines which serve to syphon off leakage water are installed on the layer of water-impermeable material, which pipelines lead to a pumping station and a reprocessing station.
8. An advance shield for the implementation of the method claimed in one of claims 1 to 7, comprising a cover plate (2) and a base plate (3) connected thereto and comprising an excavator (23) which removes the earth in front of the advance shield and a roll (10) of sheeting from which a sheet (12) is unwound, characterised in that the excavator (23) is designed to remove the soil next to an already installed tunnel pipeline, the tubular rings of which are removed and are laterally offset in order to be assembled to form an additional tunnel pipeline behind the advance shield, said advance shield is provided with a rear advancing ram (6) and a transport belt, the transport belt transports the removed soil behind the advancing ram (6) and this advancing ram (6) is arranged above the unwinding sheet (12) and with an upper, horizontally articulated and upwardly pivotable plate (7) for the simultaneous back-filling and compression of the earth next to the additional tunnel pipeline and above the unwinding sheet (12).
9. An advance shield as claimed in claim 8, characterised in that it is provided laterally with movable shields (31) in order to prevent subsidence.
10. An advance shield as claimed in claim 8, characterised in that the shield of the rear advancing ram (6) is equipped with double walls for the introduction of drainage grit.
EP88907312A 1987-08-27 1988-08-12 Process and device for subsequent incorporation of an underground seal under a refuse dump Expired - Lifetime EP0328608B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88907312T ATE63587T1 (en) 1987-08-27 1988-08-12 METHOD AND DEVICE FOR SUBSEQUENT INSTALLATION OF AN UNDERGROUND SEALING UNDER A LANDFILL.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3728569 1987-08-27
DE19873728569 DE3728569A1 (en) 1987-08-27 1987-08-27 METHOD AND DEVICE FOR THE INSTALLATION OF A SUBSTRATE SEALING IN THE AREA OF GROUND WATER UNDER WASTE DUMP PLANTS

Publications (2)

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EP0328608A1 EP0328608A1 (en) 1989-08-23
EP0328608B1 true EP0328608B1 (en) 1991-05-15

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EP88907312A Expired - Lifetime EP0328608B1 (en) 1987-08-27 1988-08-12 Process and device for subsequent incorporation of an underground seal under a refuse dump

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US (1) US4950106A (en)
EP (1) EP0328608B1 (en)
JP (1) JP2854008B2 (en)
DE (2) DE3728569A1 (en)
RU (1) RU1831571C (en)
UA (1) UA18717A (en)
WO (1) WO1989002009A1 (en)

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DE3941357A1 (en) * 1989-12-15 1991-06-27 Paurat F Forming sealing structure under contaminated ground - uses tunnel-shaped pits on sealing section either side with three coupling lines
DE4136060C1 (en) * 1991-10-29 1993-02-04 Howaldtswerke - Deutsche Werft Ag, 2300 Kiel, De Folding tunnel tube for mine - has two halves which are joined by hinge running along axis of tube
US5348422A (en) * 1993-02-25 1994-09-20 Terranalysis Corporation Methods for the formation and operation of an in situ process reactor
AT401481B (en) * 1993-09-09 1996-09-25 Pichler Alois Storage system
US6558079B1 (en) 2000-02-22 2003-05-06 Epi Environmental Technologies Inc. Method and apparatus for covering landfill
US20020034422A1 (en) 2000-05-09 2002-03-21 Epi Environmental Technologies Inc. Compact Apparatus for Covering Landfill
US7131799B2 (en) * 2003-12-19 2006-11-07 Allied Machine & Engineering Corp. Cutting insert with helical geometry and holder therefor
RU2704061C1 (en) * 2018-12-01 2019-10-23 Владимир Васильевич Галайко Method for combined development of flat seams of coal deposits

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Also Published As

Publication number Publication date
US4950106A (en) 1990-08-21
RU1831571C (en) 1993-07-30
DE3728569C2 (en) 1990-02-01
EP0328608A1 (en) 1989-08-23
WO1989002009A1 (en) 1989-03-09
UA18717A (en) 1997-12-25
DE3728569A1 (en) 1989-03-16
DE3862861D1 (en) 1991-06-20
JPH02500574A (en) 1990-03-01
JP2854008B2 (en) 1999-02-03

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