EP0328608A1 - 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

Info

Publication number
EP0328608A1
EP0328608A1 EP88907312A EP88907312A EP0328608A1 EP 0328608 A1 EP0328608 A1 EP 0328608A1 EP 88907312 A EP88907312 A EP 88907312A EP 88907312 A EP88907312 A EP 88907312A EP 0328608 A1 EP0328608 A1 EP 0328608A1
Authority
EP
European Patent Office
Prior art keywords
tunnel
tube
shield
tunnel tube
pipe
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
EP88907312A
Other languages
German (de)
French (fr)
Other versions
EP0328608B1 (en
Inventor
Hans Richter
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT88907312T priority Critical patent/ATE63587T1/en
Publication of EP0328608A1 publication Critical patent/EP0328608A1/en
Application granted granted Critical
Publication of EP0328608B1 publication Critical patent/EP0328608B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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 seal under a landfill according to the preamble of claim 1 and a device for carrying out the method.
  • Such a method is the subject of EP-A 0230667.
  • 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 earth 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 by means of a tunnel tube which is built in this underpass and which is composed of individual tunnel tube rings.
  • the tunneling shield Once the tunneling shield has reached the other excavation pit, it is relocated by 180 and drives under the landfill in the direction of the one excavation pit, an adjacent strip of a covering layer being introduced and at the same time the tunnel pipe previously erected being dismantled. After one excavation pit has been reached, the tunneling shield is repositioned again by 180 and drives under the landfill as described above in the direction of the other excavation pit, a tunnel pipe being laid again.
  • the disadvantage here is that when the tunnel pipe is dismantled, if the tunneling shield moves from one building to the other. green process, the dismantled tunnel tube rings either have to be carried along by the tunneling shield or have to be transported through the still existing piece of tunnel tube.
  • the object is to improve the method in such a way that the dismantling of the tunnel tube does not cause any difficulties.
  • Figure 1 is a vertical section through a landfill and an embodiment of the device.
  • Fig. 2 is a horizontal section through the landfill and the device and
  • Fig. 3 shows a further section along the line III-III.
  • the procedure is that. a tunnel pipe is laid in a trench at the foot of the landfill, on which a feed press moves along the side facing the landfill, which picks up the soil at the front and compresses it at the back, continuously inserting a waterproof layer as a strip on the back 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 by 180 so that it can insert and weld the next sheet of film under the landfill in the same way.
  • the tube rings of the tunnel tube are partially formed obliquely, so that the tunnel tube can be bent by radial twisting.
  • the sealing sole can be installed like a trough at the ends up to the surface of the earth under the landfill.
  • a respective Embodimile- can at the ends of the tunnel pipe schleu ⁇ e, as well as materials, a feed hopper for mineral Dicht ⁇ , can pass above and below the film construction for turning 'may be disposed.
  • Conveying devices for transporting the sealing materials are arranged within the tube. The energy supply for the conveying devices and the driving shield follow along the tunnel tube.
  • the tunnel pipe In order to retain any groundwater in the partially open tunneling shield, the tunnel pipe can be filled with compressed air. The ventilation takes place through ducts.
  • 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 Behind the folded upper part of which the soil excavated 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 on the film surface can be installed.
  • 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 ends which enable horizontal control.
  • the vertical control takes place by correspondingly different loading of the horizontal feed press and a hydraulic cylinder which is supported on the rear tunnel tube.
  • a further 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.
  • Knife shields 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 deposit 1.
  • the film web 12 is welded to the film web 14 laid in the previous pass.
  • the driving shield moves in the direction of arrow 15.
  • the drainage material (gravel) to be installed on the film is transported on the conveyor belt 16 through the rear tunnel pipe and the clay 17 to be installed under the film is transported through the front tunnel pipe.
  • the loam and the gravel are each introduced through a funnel 18 onto the conveyor belt in the tunnel tubes.
  • the Geographicsch.leuse 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-release devices 22. 23 represents a clearing device for excavating the soil.
  • the excavated 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 into the position 27 and is connected there to the tunnel tube ring 28 by means of the hydraulic tensioning devices 22.
  • 25 ' is the offset ring 25.
  • the hydraulic cylinder 27 is supported on the ring 28.
  • 29 shows the horizontal joint 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. 30 is the foil sealer. The way of working is as follows:
  • 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 . 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 mined soil reaches the plate 7 via a conveyor belt in the direction of the arrow 24 and behind the press 6 to the gravel layer 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, placing this soil behind the tunneling shield next to the other tunnel tube, placing the clay layer in front of the tunneling shield and next to the one tunnel pipe, pressing the excavated soil behind the tunneling shield next to the other tunnel tube while simultaneously feeding the tunneling shield and dismantling 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 when this other tunnel pipe was dismantled and when the next tunnel pipe was laid, applied to this gravel and the mined soil compacted over this layer of gravel.
  • the driving shield When compacting the excavated soil behind the driving shield, the driving 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 favors the advancing 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 earth can also be transported away via one of the two tunnel tubes, which is necessary if the cleared earth cannot be pressed sufficiently behind the tunneling shield.
  • a film 12 can also be used Pipe system for suction of leachate.
  • This pipeline system is connected to a pump station and a treatment station, in which leachate is chemically treated in the latter. It is then returned to the surface of the landfill for washing out pollutants.
  • tunnel tube rings 20 alternately have an end face 21 that extends perpendicularly and obliquely to the tube axis, it is possible to bend the tunnel tube rings 20 about their axis to achieve a curvature of the tunnel tube, as shown on the right in FIG. 1.
  • the cover plate 2 of the tunneling shield is preferably significantly larger than the base plate 3.
  • the tunneling shield has laterally movable plates 31.

Landscapes

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

Abstract

Eine Vorschubpresse (6) bestückt mit einem kontinuierlich abwicklenden Foliencoil (10) wird entlang eines aus einzelnen Gliedern bestehenden Tunnelrohres unter der Mülldeponie (1) hindurchgepresst, durch Aufnehmen des Erdreichs auf der Vorderseite und Herauspressen mittels eines Presskolbens (9) auf der Rückseite, wobei die einzelnen Tunnelrohrsegmente mit der Vorwärtsbewegung kontinuierlich von den übrigen Rohren abgekoppelt werden und seitlich versetzt an einem hinter der Vorrichtung heraustretenden Tunnelrohres wieder angesetzt wird. Die Tunnelrohre sind mit Druckschleuse (19) und Materialschleusen an ihren Enden versehen. Das ganze System ist mit Druckluft auffüllbar, um das Grundwasser zurück zu halten. Die Tunnelrohre dienen gleichzeitig als Fluchtweg, Bewetterung und Materialtransport. 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.A feed press (6) equipped with a continuously unwinding foil coil (10) is pressed through a tunnel tube consisting of individual sections under the landfill (1), by picking up the soil on the front and pressing it out by means of a press piston (9) on the back, whereby the individual tunnel tube segments are continuously decoupled from the other tubes with the forward movement and are laterally offset again from a tunnel tube emerging behind the device and are attached again. The tunnel tubes are equipped with a pressure lock (19) and material locks at their ends. The entire system can be filled with compressed air to retain the groundwater. The tunnel tubes also serve as an escape route, ventilation and material transport. 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

Beschreibung description
Verfahren und Vorrichtung zum nachträglichen Einbau einer Unterqrundabdichtung unter einer MülldeponieMethod and device for retrofitting a sub-floor seal under a landfill
Die Erfindung betrifft ein Verfahren zum nachträglichen Einbau einer Untergrundabdichtung unter einer Mülldeponie nach dem Oberbegriff des Anspruches 1 sowie eine Vorrich¬ tung zur Durchführung des Verfahrens.The invention relates to a method for retrofitting an underground seal under a landfill according to the preamble of claim 1 and a device for carrying out the method.
Ein solches Verfahren ist Gegenstand der EP- A 0230667. Bei diesem Verfahren werden am Rand der Deponie zu/ei 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,, wo¬ bei an seiner Vorderseite Erdreich abgebaut wird. An der Rückseite des Vortriebsschilds wird mit Erdreich verfüllt und dabei ein Streifen einer abdichtenden Schicht einge¬ bracht. Die Ver- und Entsorgung des Vortriebsschilds er¬ folgt durch ein bei diesem Unterfahren errichtetes Tunnel¬ rohr, 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 Strei¬ fen einer abdeckenden Schicht eingebracht und gleichzeitig das zuvor errichtete Tunnelrohr abgebaut wird. Nach Errei¬ chen der einen Baugrube wird das Vortriebsschild erneut um 180 umgesetzt und unterfährt die Deponie wie -zuvor be¬ schrieben in Richtung der anderen Baugrube, wobei von neuem ein Tunnelrohr verlegt wird.Such a method is the subject of EP-A 0230667. In this method, 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 earth 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 by means of a tunnel tube which is built in this underpass and which is composed of individual tunnel tube rings. Once the tunneling shield has reached the other excavation pit, it is relocated by 180 and drives under the landfill in the direction of the one excavation pit, an adjacent strip of a covering layer being introduced and at the same time the tunnel pipe previously erected being dismantled. After one excavation pit has been reached, the tunneling shield is repositioned again by 180 and drives under the landfill as described above in the direction of the other excavation pit, a tunnel pipe being laid again.
Hierbei ist nachteilig, daß beim Abbau des Tunnelrohrs, wenn das Vortriebsschild von der einen zur anderen Bau- grübe verfährt, die abgebauten Tunnelrohrringe entweder vom Vortriebsschild mitgeführt oder durch das noch vor¬ handene Tunnelrohrstück transportiert werden müssen.The disadvantage here is that when the tunnel pipe is dismantled, if the tunneling shield moves from one building to the other. green process, the dismantled tunnel tube rings either have to be carried along by the tunneling shield or have to be transported through the still existing piece of tunnel tube.
Es besteht die Aufgabe, das Verfahren so zu verbessern, daß der Abbau des Tunnelrohres keine Schwierigkeiten be¬ reitet.The object is to improve the method in such a way that the dismantling of the tunnel tube does not cause any difficulties.
Gelöst wird diese Aufgabe durch die kennzeichnenden Merk¬ male des Anspruches 1. Vorteilhafte Ausgestaltungen des Verfahrens und eine Vorrichtung zur Ausführung des Ver¬ fahrens sind den Unteransprüchen entnehmbar.This object is achieved by the characterizing features of claim 1. Advantageous refinements of the method and a device for carrying out the method can be found in the subclaims.
Ausführungsbeispiele der Erfindung werden nachfolgend an¬ hand der Zeichnungen näher erläutert. Es zeigen:Exemplary embodiments of the invention are explained in more detail below with reference to the drawings. Show it:
Fig. 1 einen Vertikalschnitt durch eine Mülldeponie und eine Ausführungsform der Vorrichtung;Figure 1 is a vertical section through a landfill and an embodiment of the device.
Fig. 2 einen Horizontalschnitt durch die Mülldeponie und die Vorrichtung undFig. 2 is a horizontal section through the landfill and the device and
Fig. 3 einen weiteren Schnitt längs der Linie III-III.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 seit¬ lich versetzt zu einem neuen Tuπnelrohr wieder zusammenge¬ setzt 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 Folien¬ bahn auf die gleiche Art und Weise unter der Deponie ein¬ bringen und verschweißen kann.The procedure is that. a tunnel pipe is laid in a trench at the foot of the landfill, on which a feed press moves along the side facing the landfill, which picks up the soil at the front and compresses it at the back, continuously inserting a waterproof layer as a strip on the back 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 by 180 so that it can insert and weld the next sheet of film under the landfill in the same way.
Die Rohrringe des Tunnelrohrs sind teilweise schräg ausge¬ bildet, so daß durch radiales Verdrehen Abknickungen des Tunnelrohrs möglich sind. Auf diese Weise kann die Dicht¬ sohle wannenartig an den Enden bis zur Erdoberfläche hoch¬ gezogen unter der Deponie eingebaut werden.The tube rings of the tunnel tube are partially formed obliquely, so that the tunnel tube can be bent by radial twisting. In this way, the sealing sole 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 Personendruck- schleuβe, sowie ein Einlauftrichter für mineralische Dicht¬ materialien, die oberhalb und unterhalb der Folie zum Ein- bau'gelangen können, angeordnet sein. Innerhalb des Rohrs sind Fördereinrichtungen zum Transport der Dichtungsmate¬ rialien angeordnet. Die Energieversorgung für die Förder¬ einrichtungen und das- Vortriebsschild folgen längs des Tunnelrohrs.A respective Personendruck- can at the ends of the tunnel pipe schleuβe, as well as materials, a feed hopper for mineral Dicht¬, can pass above and below the film construction for turning 'may be disposed. Conveying devices for transporting the sealing materials are arranged within the tube. The energy supply for the conveying devices and the driving shield follow along the tunnel tube.
Um eventuelles Grundwasser in dem teils offenen Vortriebs¬ schild zurückzuhalten, kann das Tunnelrohr mit Druckluft gefüllt werden. Die Belüftung geschieht durch D _r>uckrohre.In order to retain any groundwater in the partially open tunneling shield, the tunnel pipe can be filled with compressed air. The ventilation takes place through ducts.
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 rück¬ wärtigen 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) ein¬ gebaut werden kann. Der Kies wird durch das rückwärtige Tunnelrohr antransportiert. Der unter der Folie einzubau¬ ende Lehm wird entlang des vorseitigen Tunnelrohrs antrans¬ portiert. 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 excavated 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 on the film surface can be installed. 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 vor¬ derseitigen und rückseitigen Ende bewegliche Messerschilde, die eine Horizontalsteuerung ermöglichen. Die Vertikal¬ steuerung erfolgt durch entsprechende unterschiedliche Be¬ aufschlagung der horizontalen Vorschubpresse und eines sich auf dem rückwärtigen Tunnelrohr abstützenden Hydrau¬ likzylinders.The top and bottom plates of the tunneling shield have movable knife shields at the front and rear ends which enable horizontal control. The vertical control takes place by correspondingly different loading of the horizontal feed press and a hydraulic cylinder which is 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 trans¬ portiert und im Vortriebsschild bei Längenverschiebungen ein- oder ausgebaut werden können.A further 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 ver¬ bunden sind. An den Platten 2,3 sind vorne und hinten je¬ weils 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 Depo¬ nie 1 zu liegen kommt. Bei 13 wird die Folienbahn 12 mit der im vorigen Durchgang verlegten Folienbahn 14 ver¬ schweißt. Das Vortriebsschild bewegt sich in Pfeilrich¬ tung 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 shields 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 deposit 1. At 13, the film web 12 is welded to the film web 14 laid in the previous pass. The driving shield moves in the direction of arrow 15.
Auf dem Förderband 16 wird durch das rückwärtige Tunnel¬ rohr das auf der Folie einzubauende Drainagematerial (Kies) und durch das vordere Tunnelrohr der unter der Folie einzubauende Lehm 17 antransportiert. Das Einbrin¬ gen des Lehms sowie des Kieses erfolgt jeweils durch einen Trichter 18 auf das Förderband in den Tunnelrohren. Die Personensch.leuse 19 am Ende und Anfang der Tunnelrohre schließt diese hermetisch ab. Die Tunnelrohrringe 20 sind abwechselnd schräg geteilt und durch hydraulische Schnell- apanner 22 miteinander verbunden. 23 stellt ein Räumgerät zum Abbauen des Erdreiches dar. Das abgebaute Material wird entlang Pfeilrichtung 24 hinter die rückwärtige Vor¬ schubpresse 6 und dessen Platte 7 transportiert.The drainage material (gravel) to be installed on the film is transported on the conveyor belt 16 through the rear tunnel pipe and the clay 17 to be installed under the film is transported through the front tunnel pipe. The loam and the gravel are each introduced through a funnel 18 onto the conveyor belt in the tunnel tubes. The Personensch.leuse 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-release devices 22. 23 represents a clearing device for excavating the soil. The excavated 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 27 verfahren und dort mit dem Tunnelrohr¬ ring 28 mittels der hydraulischen Spannvorrichtungen 22 verbunden. 25' ist der versetzte Ring 25. Der Hydraulik¬ zylinder 27 stützt sich auf dem Ring 28 ab. 29 zeigt die horizontale Trennfuge der Ringe zur Trennung in zwei Halb¬ schalen. 29' zeigt den Versatz der Trennfuge 29, um die in Figur 1 gezeigte Abwinklung des Tunnelrohrs zu errei¬ chen. 30 ist das Folienschweißgerät. Die Arbeitsweise ist folgende:The tunnel tube ring 25 is moved along the arrow direction 26 into the position 27 and is connected there to the tunnel tube ring 28 by means of the hydraulic tensioning devices 22. 25 'is the offset ring 25. The hydraulic cylinder 27 is supported on the ring 28. 29 shows the horizontal joint 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. 30 is the foil sealer. The way of working 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 of all, 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 . 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 ver¬ fahrbar. Das abgebaute Erdreich gelangt über ein Trans¬ portband in Pfeilrichtung 24 auf die Platte 7 und hinter die Presse 6 auf die auf der Folie 12 befindliche Kies¬ schicht.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 mined soil reaches the plate 7 via a conveyor belt in the direction of the arrow 24 and behind the press 6 to the gravel layer on the film 12.
Am vorderen Ende der Bodenplatte 3 wird am Boden anstelle des dort ausgehobenen Erdreichs eine Lehmschicht 17 einge- b-racht. 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 da¬ hinter 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 placed on the ground instead of the soil excavated there. Then the cylinder 8 is actuated, whereby the plate 7 swivels upward, and the cylinder 9 of the press 6, whereby the plate 7 and the press 6 compact 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. Auf¬ bringen 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 Ab¬ bau 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, placing this soil behind the tunneling shield next to the other tunnel tube, placing the clay layer in front of the tunneling shield and next to the one tunnel pipe, pressing the excavated soil behind the tunneling shield next to the other tunnel tube while simultaneously feeding the tunneling shield and dismantling 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 Lehm¬ schicht eingebracht, beim Abbau dieses anderen Tunnel¬ rohres und beim Verlegen des nächsten Tunnelrohres eine Folie auf der Lehmschicht verlegt, auf diese Kies aufge¬ bracht 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 when this other tunnel pipe was dismantled and when the next tunnel pipe was laid, applied to this gravel and the mined soil compacted over this layer of gravel.
Beim Verdichten des abgebauten Erdreichs hinter dem Vor¬ triebsschild kann sich das Vortriebsschild durch Hydraulik¬ antriebe am einen Tunnelrohr vorwärts ziehen und am anderen Tunnelrohr durch den Hydraulikzylinder 27 abstützen, wo¬ durch die Vorschubbewegung in Pfeilrichtung 15 begünstigt wird.When compacting the excavated soil behind the driving shield, the driving 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 favors the advancing 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 hin¬ ter dem Vortriebsschild verpressen läßt.The gravel can be fed through one tunnel pipe, while the clay is fed through the other tunnel pipe. Cleared earth can also be transported away via one of the two tunnel tubes, which is necessary if the cleared earth 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 Pumpen¬ station und einer Aufbereitungsstation in Verbindung, wo¬ bei 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, a film 12 can also be used Pipe system for suction of leachate. This pipeline system is connected to a pump station and a treatment station, in which leachate is chemically treated in the latter. It is then returned 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 auf¬ weisen, ist es möglich, durch Verdrehen der Tunnelrohr¬ ringe 20 um ihre Achse eine Krümmung des Tuπnelrohres zu erreichen, wie dies in Fig. 1 rechts dargestellt ist.Since the tunnel tube rings 20 alternately have an end face 21 that extends perpendicularly and obliquely to the tube axis, it is possible to bend the tunnel tube rings 20 about their axis to achieve a curvature of the tunnel tube, as shown on the right in FIG. 1.
Die Deckplatte 2 des Vortriebsschildes ist bevorzugt deut¬ lich größer als die Grundplatte 3. Um einen seitlichen Einbruch des Erdreichs zu verhindern, weist das Vortriebs¬ schild 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 plates 31.

Claims

Ansprüche Expectations
1. Verfahren zum nachträglichen Einbau einer Untergrund¬ abdichtung unter einer Mülldeponie (1) mittels eines Vortriebsschilds, das die Mülldeponie (1) streifenweise unterfährt," dabei auf seiner Vorderseite das Erdreich abbaut und auf seiner Rückseite transportiert und dort verdichtet und hierdurch eine Vorschubbewegung (15) ausführt, im Schütze einer Deckplatte (2) des Vortriebs¬ schilds eine streifenförmige Schicht eines wasserun¬ durchlässigen Materials eingebaut wird und die Ver- und Entsorgung des Vortriebsschilds durch ein Tunnel¬ rohr erfolgt, das aus einzelnen Tunnelrohrringen (20) zusammengesetzt ist, die bei der Vorschubbewegung (15) des Vortriebsschilds unter den Schutz der Deckplatte (2) gelangen und dann abgebaut werden, dadurch g e k e n n z e i c h n e t , daß die abgebauten Tunnelrohrringe (20) des einen Tunnelrohrs zur Erstel¬ lung eines gegenüber diesem Tunnelrohr seitlich in Richtung auf die folgende streifenförmige Schicht hin versetzten weiteren Tunnelrohrs hinter dem Vortriebs¬ schild dienen.1. Method for retrofitting a sub-surface seal under a landfill (1) by means of a driving sign that passes underneath the landfill (1) in strips, " thereby digging the soil on its front and transporting it on its back and compacting it there and thereby a feed movement ( 15), a strip-shaped layer of a water-impermeable material is installed in the contactor of a cover plate (2) of the tunnel shield and the tunnel shield is supplied and disposed of through a tunnel tube which is composed of individual tunnel tube rings (20), which come under the protection of the cover plate (2) during the advance movement (15) of the tunnel shield and are then dismantled, characterized in that the dismantled tunnel tube rings (20) of the one tunnel tube for the creation of one opposite this tunnel tube laterally in the direction of the following strip-shaped layer towards another tunnel tube h serve inside the tunnel shield.
2. Verfahren nach Anspruch 1, dadurch g e k e n n ¬ z e i c h n e t , daß sich das Vortriebsschild durch Hydraulikantriebe am einen Tunnelrohr vorwärts zieht und am weiteren Tunnelrohr abstützt.2. The method according to claim 1, characterized in that the jacking plate is pulled forward by hydraulic drives on a tunnel tube and is supported on the further tunnel tube.
3. Verfahren nach Anspruch 1 oder 2, dadurch g e k e n n z e i c h n e t , daß im Bereich der Deckplatte (2) durch die Vorschubbewegung des Vortriebs¬ schilds neben dem weiteren Tunnelrohr eine Folie (12) abwickelt und mit der bereits im vorherigen Durchgang verlegten Folienbahn verschweißt wird.3. The method according to claim 1 or 2, characterized in that in the region of the cover plate (2) by the feed movement of the Vortriebs¬ shield next to the further tunnel tube, a film (12) unwound and welded to the film web already laid in the previous pass.
4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch g e k e n n z e i c h n e t , daß neben dem einen Tunnelrohr und vor dem Vortriebsschild eine wasserun¬ durchlässige Schicht eingebracht wird, die von der Grundplatte (3) des Vortriebsschilds überfahren wird.4. The method according to any one of claims 1 to 3, characterized in that in addition to the one tunnel pipe and in front of the tunnel shield, a water-impermeable layer is introduced which is passed over by the base plate (3) of the tunnel shield.
5. Verfahren nach einem der Ansprüche 1 bis 4, dadurch g e k e n n z e i c h n e t , daß überschüssiges Abraummaterial sowie einzubauendes Dichtungsmaterial in den Tunnelrohren transportiert wird.5. The method according to any one of claims 1 to 4, characterized in that excess debris and sealing material to be installed are transported in the tunnel tubes.
6. Verfahren nach einem der Ansprüche 1 bis 5, dadurch g e k e n n z e i c h n e t , daß an den Enden der Tunnelrohre Personen- und/oder Materialschleusen ange¬ bracht sind.6. The method according to any one of claims 1 to 5, characterized in that gates and / or material locks are attached to the ends of the tunnel tubes.
7. Verfahren nach einem der Ansprüche 1 bis 6, dadurch g e k e n n z e i c h n e t , daß auf der Schicht des wasserundurchlässigen Materials Rohrleitungen zum Absaugen von Sickerwasser verlegt werden, die zu einer Pumpstation und einer Aufarbeitungsstation führen.7. The method according to any one of claims 1 to 6, characterized g e k e n n z e i c h n e t that on the layer of water-impermeable material pipelines for suctioning leachate are laid, which lead to a pumping station and a processing station.
8. Tunnelrohrringe zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 7, dadurch g e k e n n ¬ z e i c h n e t , daß sie abwechselnd eine senk¬ recht und eine schräg zur Rohrachse verlaufende Stirn¬ seite (21) aufweisen, derart, daß durch Verdrehen der Tunnelrohrringe (20) um ihre Achse eine Krümmung des Tunnelrohrs entsteht. 8. tunnel tube rings for carrying out the method according to any one of claims 1 to 7, characterized in that they alternately have a perpendicular and an oblique to the tube axis end face (21), such that by rotating the tunnel tube rings (20 ) there is a curvature of the tunnel tube around its axis.
9. Vortriebsschild zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 7, dadurch g e k e n n ¬ z e i c h n e t , daß es zum Abbau des Erdreichs neben dem einen Tunnelrohr und vor dem weiteren Tunnel¬ rohr ein Räumgerät (23) aufweist.9. Driving shield for carrying out the method according to one of claims 1 to 7, characterized g e k e n n ¬ z e i c h n e t that it has a clearing device (23) for mining the soil next to the one tunnel pipe and before the further tunnel pipe.
10. Vortriebsschild nach Anspruch 9, dadurch g e k e n n z e i c h n e t , daß die Deckplatte (2) deutlich größer als die Grundplatte (3) ist.10. Jacking plate according to claim 9, characterized in that the cover plate (2) is significantly larger than the base plate (3).
11. Vortriebsschild nach Anspruch 9 oder 10, dadurch g e k e n n z e i c h n e t , daß es seitlich be¬ wegliche Schilder (31) zum Verhindern eines Bergein¬ bruchs aufweist. 11. Driving shield according to claim 9 or 10, characterized in that it has laterally movable signs (31) for preventing a mountain break.
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)

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

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
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

Country Status (7)

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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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Also Published As

Publication number Publication date
RU1831571C (en) 1993-07-30
UA18717A (en) 1997-12-25
DE3728569A1 (en) 1989-03-16
DE3862861D1 (en) 1991-06-20
JP2854008B2 (en) 1999-02-03
US4950106A (en) 1990-08-21
JPH02500574A (en) 1990-03-01
WO1989002009A1 (en) 1989-03-09
DE3728569C2 (en) 1990-02-01
EP0328608B1 (en) 1991-05-15

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