EP0245542B1 - Bouclier d'avancement pour la poussée de tuyaux en béton préfabriqués pour le creusement de galeries et de tunnels dans des sols aquifères ou non consolidés - Google Patents

Bouclier d'avancement pour la poussée de tuyaux en béton préfabriqués pour le creusement de galeries et de tunnels dans des sols aquifères ou non consolidés Download PDF

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Publication number
EP0245542B1
EP0245542B1 EP86200817A EP86200817A EP0245542B1 EP 0245542 B1 EP0245542 B1 EP 0245542B1 EP 86200817 A EP86200817 A EP 86200817A EP 86200817 A EP86200817 A EP 86200817A EP 0245542 B1 EP0245542 B1 EP 0245542B1
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EP
European Patent Office
Prior art keywords
shield
cutting head
filter elements
filter
water
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
Application number
EP86200817A
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German (de)
English (en)
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EP0245542A1 (fr
Inventor
Weiss Benedikt
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
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Individual
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Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8195737&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0245542(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Priority to EP86200817A priority Critical patent/EP0245542B1/fr
Priority to DE8686200817T priority patent/DE3664659D1/de
Publication of EP0245542A1 publication Critical patent/EP0245542A1/fr
Application granted granted Critical
Publication of EP0245542B1 publication Critical patent/EP0245542B1/fr
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
    • E21D9/0642—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield having means for additional processing at the front end
    • E21D9/0664—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield having means for additional processing at the front end with means for applying a coating layer to the front face, e.g. by spraying

Definitions

  • the invention relates to a jacking plate for the pre-pressing of prefabricated concrete pipes for opening tunnels or tunnels in water-bearing floors or flowing floors, which consists of a double-walled pressure ring with a funnel-like cutting head forming an annular cavity, a bulkhead wall provided with flaps which can be closed by flaps, and filter-like water drainage pipes.
  • the compressed air method in which the work space is delimited on site by a bulkhead wall which is provided with compressed air inlets and entry openings.
  • the compressed air supplied presses the water out of the ground on site and prevents it from flowing.
  • This method of operation has the disadvantage, however, that the working personnel are exposed to the overpressure of about 0.2 to 3.0 atmospheres in a way that is harmful to health when cleaning out on site, and that special locks are provided for pressure compensation behind the bulkhead wall have to.
  • the same disadvantages are also present in the embodiment known from DE-B 12 44 222, in which the work space is divided by a horizontal partition into an upper and a lower work chamber, which are subjected to different air overpressures in accordance with the water pressure.
  • the invention has for its object to design a tunneling shield of the generic type such that water-containing soil on the face is permanently drained by vacuum.
  • This object is achieved in that the cutting head is provided with filter elements and the cavity is connected to a vacuum device.
  • the vacuum device is part of the tunneling shield and is automatically carried along with the shield tunneling without the action of the vacuum on the ground having to be interrupted.
  • the water is continuously sucked off so that the soil maintains its stable condition and can be broken down safely.
  • a particularly favorable drainage can be achieved in that the filter elements are arranged in the lower region of the funnel-shaped inner wall of the cutting head and in the upper region of the pressure ring.
  • one or more double-walled bulkheads are preferably arranged in the shield space in front of the bulkhead wall, which are provided with filter elements and the cavity of which is connected to the vacuum device.
  • the filter elements can be designed differently depending on the soil conditions. For example, they can consist of lamellar filters, which are arranged in a frame that is interchangeably fastened in a cutout of the cutting head or the bulkhead, or they can also consist of sandwich-like filter screens that are interchangeable in cutouts of the cutting head or bulkhead are attached.
  • a bentonite layer can be sprayed onto the soil material in the shield area, so that the vacuum can build up again.
  • spray cans are provided in the ridge of the shield space and possibly under the bulkheads, which are connected to a bentonite line.
  • the flaps closing the working openings are expediently foldable in the direction of the pipe string and are provided with adjustable spring hinges, so that even heavy closing flaps can be closed quickly and easily by hand in the event of a risk of water ingress or during rest.
  • the driving shield 1 shown schematically in FIGS. 1 and 2 is pressed into the ground with the interposition of a compensating ring 2 via prefabricated concrete pipes 3 by means of hydraulic working cylinders (not shown).
  • the driving shield 1 consists essentially of a double-walled pressure ring 4 and a cutting head 5. Both parts are formed by an outer tube and an inner tube, the diameter of which is matched to the outer diameter and inner diameter of the concrete tubes 3 and which are welded to one another by spacer rings .
  • a bulkhead wall 7 is attached, to which a horizontal bulkhead 8 connects, which is fastened to the inner tube of the pressure ring 4 and the inner wall 6 of the cutting head 5 and extends with its front edge approximately to the surface formed by the annular cutting edge.
  • a horizontal bulkhead 8 connects to the inner tube of the pressure ring 4 and the inner wall 6 of the cutting head 5 and extends with its front edge approximately to the surface formed by the annular cutting edge.
  • an angled upward side wall 9 which, as shown in FIG. 1, forms a wedge-shaped, horizontally running cutting edge with the bulkhead 8 in longitudinal section.
  • the bulkhead wall 7 is provided at a height above and below the bulk floor 8 with working openings which can be closed by flaps 10, 11.
  • the flaps 10, 11 form a segment of a circle and can each be pivoted about a horizontal axis by means of adjustable spring hinges 12, 13. By adjusting the spring tension, even massive flaps 10, 11 can be operated quickly and easily.
  • the cutting head 5 has an annular cavity 14, and in a corresponding manner the front part of the bulk floor 8 also has a horizontal cavity 18. As shown in particular in FIG. 2, the cutting head 5 is in the lower region on its funnel-like inner wall 6 and in Provide the upper area on its outer tube with filter elements 15 which let water through and substantially retain solid particles.
  • the associated cavity 14 is connected to a vacuum pump (not shown) via two pipes 16 and coupling elements 17.
  • the inclined side wall 9 of the bulk floor 8 is also equipped with filter elements 15 and the cavity 18 is connected to the vacuum pump via pipes 19 and coupling elements 20.
  • the lower group of filter elements 15 assigned to the cutting head 5 extends over a partial arc. Their number and arrangement depends on the soil conditions.
  • the filter elements 15 of the cutting head 8 extend essentially over its width.
  • the soil cut by the cutting head 5 on site is dewatered to such an extent that it loses its flow properties, is stabilized and therefore, when the flaps 10, 11 are open, through the work openings from the upper and lower shield spaces 24, 25 can be cleared by hand or with the help of machines.
  • the vacuum is maintained even during the advance of the pipe string so that the drainage is not interrupted. With a correspondingly low groundwater level, the vacuum only needs to be applied to the lower and middle group of filter elements 15, or if the soil is waterless, the vacuum device can be switched off altogether.
  • a spray nozzle 21 is attached under the ridge of the pressure ring 4 and under the bulkhead 8, which can be connected via a bentonite line 22 and a coupling element 23 to a bentonite pump (not shown).
  • the filter elements 15 can be designed differently.
  • cutouts are provided in the inner wall 6, into which a frame 29 equipped with lamellar filter plates 30 is inserted with the interposition of a sealing ring 31.
  • the individual lamellae are attached obliquely to the frame 29, a small gap being present between their flat sides through which water can flow, but essentially solid particles are retained.
  • 3 also shows how the cavity 14 is delimited on its rear side by an annular rear wall 28.
  • filter sieves 33, 34 arranged in a sandwich-like manner are provided, which rest with their edges with the interposition of a sealing ring 35 on a collar 32 enclosing the cut-out edge and are detachably fastened.
  • a close-meshed filter screen 33 is arranged between two coarse-mesh filter screens 34 or grate screens or perforated plates.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Claims (7)

1. Bouclier d'avancement pour la poussée de tuyaux préfabriqués en béton (2) en vue de percer des galeries ou des tunnels dans des sols aquifères ou dans des sols boulants, constitué d'un anneau de pression (4) à double paroi et ayant une tête de coupe (5) de type en trémie et formant une cavité annulaire (14), une cloison étanche (7) munie d'ouvertures de travail, qui peuvent être fermées par des volets (10, 11), et des conduits d'évacuation de l'eau, de type à filtre, caractérisé en ce que la tête de coupe (5) est munie d'éléments filtrants (15) et sa cavité est reliée à un dispositif à vide.
2. Bouclier d'avancement suivant la revendication 1, caractérisé en ce que les éléments filtrants (5) sont disposés à la partie inférieure de la paroi intérieure (6) en forme de trémie de la tête de coupe (5), et à la partie supérieure de l'anneau de pression (4).
3. Bouclier d'avancement suivant la revendication 1 ou 2, caractérisé en ce que, dans la chambre du bouclier (24, 25) se trouvant devant la cloison étanche (7), sont disposés un ou plusieurs fonds à double paroi pour les déblais (8), qui sont munis d'éléments filtrants (15) et dont la cavité (18) est raccordée au dispositif de mise sous vide.
4. Bouclier d'avancement suivant l'une des revendications 1 à 3, caractérisé en ce que les éléments filtrant (15) sont constitués de plaques de filtres à lamelles (30) montées dans un cadre (29) qui est fixé, de manière à pouvoir être remplacé, dans un évidement de la tête de coupe (5) ou du fond pour les déblais (8).
5. Bouclier d'avancement suivant l'une des revendications 1 à 3, caractérisé en ce que les éléments filtrants (15) sont constitués de tamis filtrants (33, 34) qui sont montée en sandwich et qui sont fixés horizontalement de manière à pouvoir être remplacés, dans des évidements de la tête de coupe (5) ou du fond pour les déblais (8).
6. Bouclier d'avancement suivant l'une des revendications 1 à 5, caractérisé en ce qu'au sommet de la chambre du bouclier (25) et, le cas échéant, sous le fond pour les déblais (24), sont prévues des buses de projection (21) qui sont reliées à un conduit pour de la bentonite (22).
7. Bouclier d'avancement suivant l'une des revendications 1 à 6, caractérisé en ce que les volets (10, 11) qui ferment les ouvertures de travail peuvent être rabattus dans le sens allant vers la ligne de tuyaux et sont munis de charnières à ressorts qui sont réglables.
EP86200817A 1986-05-12 1986-05-12 Bouclier d'avancement pour la poussée de tuyaux en béton préfabriqués pour le creusement de galeries et de tunnels dans des sols aquifères ou non consolidés Expired EP0245542B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP86200817A EP0245542B1 (fr) 1986-05-12 1986-05-12 Bouclier d'avancement pour la poussée de tuyaux en béton préfabriqués pour le creusement de galeries et de tunnels dans des sols aquifères ou non consolidés
DE8686200817T DE3664659D1 (en) 1986-05-12 1986-05-12 Driving shield for forcing prefabricated concrete pipes for driving galleries and tunnels in water-bearing or unconsolidated soil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP86200817A EP0245542B1 (fr) 1986-05-12 1986-05-12 Bouclier d'avancement pour la poussée de tuyaux en béton préfabriqués pour le creusement de galeries et de tunnels dans des sols aquifères ou non consolidés

Publications (2)

Publication Number Publication Date
EP0245542A1 EP0245542A1 (fr) 1987-11-19
EP0245542B1 true EP0245542B1 (fr) 1989-07-26

Family

ID=8195737

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86200817A Expired EP0245542B1 (fr) 1986-05-12 1986-05-12 Bouclier d'avancement pour la poussée de tuyaux en béton préfabriqués pour le creusement de galeries et de tunnels dans des sols aquifères ou non consolidés

Country Status (2)

Country Link
EP (1) EP0245542B1 (fr)
DE (1) DE3664659D1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2001901C (nl) * 2008-08-20 2010-03-10 Leonardus Karel Van Tol Inrichting en werkwijze voor het aanbrengen van een uitgraving.
CN112647958A (zh) * 2020-12-28 2021-04-13 中铁广州工程局集团有限公司 一种箱涵的施工方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1138083B (de) * 1959-11-11 1962-10-18 Hochtief Ag Hoch Tiefbauten Verfahren und Vorrichtung zum Vortreiben eines Tunnels oder Stollens in wasserfuehrendem Fein- bis Mittelsand
DE1244222B (de) * 1962-05-11 1967-07-13 Richard Schulz Tiefbauunterneh Schildschwanzdichtung fuer einen Vortriebsschild
DE2502717C3 (de) * 1975-01-23 1978-06-08 Centralnyj Nautschno-Issledovatelskij I Proektno-Konstruktorskij Institut Prochodtscheskich Maschin I Kompleksov Dlja Ugolnoj, Gornoj Promyschlennosti I Podsemnovo Stroitelstva, Moskau Vortriebsschild zum Auffahren von Tunnels
DE2801616C3 (de) * 1978-01-14 1980-07-17 Weiss U. Co. Gmbh, 4200 Oberhausen verfahren zum Auffahren von Strecken oder Tunneln in wasserführenden Fließböden unter Verwendung eines Druckluft-Vortriebsschildes
DE3326219A1 (de) * 1983-07-21 1985-01-31 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Vortriebsschild mit schottwand

Also Published As

Publication number Publication date
EP0245542A1 (fr) 1987-11-19
DE3664659D1 (en) 1989-08-31

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