EP0273441B1 - Procédé d'évacuation de déblai - Google Patents

Procédé d'évacuation de déblai Download PDF

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Publication number
EP0273441B1
EP0273441B1 EP87119301A EP87119301A EP0273441B1 EP 0273441 B1 EP0273441 B1 EP 0273441B1 EP 87119301 A EP87119301 A EP 87119301A EP 87119301 A EP87119301 A EP 87119301A EP 0273441 B1 EP0273441 B1 EP 0273441B1
Authority
EP
European Patent Office
Prior art keywords
spoils
tunnel
process according
pressure
earth
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP87119301A
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German (de)
English (en)
Other versions
EP0273441A2 (fr
EP0273441A3 (en
Inventor
Karl Dipl.-Ing. Schlecht
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
Publication of EP0273441A2 publication Critical patent/EP0273441A2/fr
Publication of EP0273441A3 publication Critical patent/EP0273441A3/de
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Publication of EP0273441B1 publication Critical patent/EP0273441B1/fr
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK 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
    • E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
    • E21D9/13—Devices for removing or hauling away excavated material or spoil; Working or loading platforms using hydraulic or pneumatic conveying means
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them

Definitions

  • the invention relates to a method for removing spoil during the construction of tunnels, in which the spoil produced is pumped out of the tunnel.
  • the invention is therefore based on the object of developing a method with which the overburden can be removed directly in an economical manner and without changing the tunnel-like landscape even in the construction of very long tunnels, in particular in the tunneling of watercourses, inlets and the like.
  • the invention is based on the idea that when the overburden is conveyed through a bore which penetrates the tunnel wall or tunnel shell essentially radially and, if appropriate, at least one channel drilled into the earth surrounding the tunnel, only relatively short transport routes have to be overcome for the removal of the overburden .
  • thick matter pumps are advantageously used, which convey the overburden mixed with a liquid, such as water, to a pasty, pumpable paste from the point of origin under pressure to the disposal site. If the pump pressure line ends below the surface of the earth, an expanding lenticular area filled with overburden forms with increasing production.
  • the overburden must be conveyed into the ground using a pressure that corresponds at least to the earth pressure at the exit point of the channel or the pump pressure line while performing a deformation and / or displacement work.
  • the overburden channels are advantageously led horizontally out of the tunnel.
  • the spoil is conveyed into zones from which no pressure is exerted on the tunnel wall and from which the spoil cannot flow back or can easily be prevented from flowing back.
  • the canal opens into a dry rock area, because this makes it easier to drill the hole and prevents water from entering from the water above.
  • At least the first part of the channel bore adjoining the tunnel tube is lined with steel tubes. This also ensures that the hole cannot collapse when the drill inserting the channel is withdrawn. In principle, it is even possible to pump the overburden through the radial bore into the immediate vicinity of the tunnel if it is ensured that the tunnel wall is temporarily or permanently reinforced or stiffened in such a way that the overburden pressure can be absorbed.
  • the production channel can also be driven up to the bottom of the water in order to be able to promote the overburden on the bottom of the water, for example the seabed.
  • the tunnel structure 1 shown in FIGS. 1 and 2 is driven about 50 to 100 m below the bottom 2 of a body of water 3, for example under the sea floor. Tunneling is carried out with the aid of a closed tunneling machine 10, in the interior 12 of which the overburden milled by the excavation tool 14 from the face 16 of the tunnel 1 is collected and fed via a screw conveyor 20 to a mixing container 22 for intensive mixing with water.
  • the resulting granular-pasty debris reaches a high-pressure thick matter pump 24, with which it is conveyed under pressure into a pipeline 26, 28, 30.
  • the pipeline connected to the thick matter pump 24 via a scissor tube 32 is laid in a first section 26 a distance along the already completed tunnel 1.
  • this pipe section 26 which can be up to approximately 2000 m long, the pipeline is led through a bore 42 running perpendicularly through the tunnel wall 40 over a short elbow section 28, in the area of which there are two gate valves 36, 38. This is followed by a further pipe section 30 which extends through a drilling channel 46 introduced into the soil 44 near the tunnel.
  • the drilling channel 46 ends with the pipe section 30 within the soil 44, while in the case of FIG. 2 it extends to the water bottom 2.
  • the drilling channels 46 need not necessarily be perpendicular to the surface of the earth, as is shown in FIGS. 1 and 2 for the sake of clarity. Inclined or horizontal drilling channels through the soil 44 are also possible. Such a drilling direction is preferably selected in which dry rock layers can be found in the area as close as possible to the tunnel, which are suitable for absorbing the debris mass without the risk of water ingress.

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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)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Lining And Supports For Tunnels (AREA)

Claims (12)

1. Procédé d'évacuation de déblais lors de la construction de tunnels, par lequel les déblais produits sont évacués par pompage, caractérisé en ce qu'un forage étanche à la pression est réalisé de façon à traverser une section de la paroi et respectivement du coffrage du tunnel achevée préalablement, et que les déblais sont évacués sous pression du tunnel par l'intermédiaire dudit forage.
2. Procédé selon la revendication 1, caractérisé en ce que, dans la zone d'aspiration d'une pompe, les déblais sont transformés, par addition de liquide, en particulier d'eau, en une masse pâteuse.
3. Procédé selon l'une des revendications 1 ou 2, caractérisé en ce que les déblais sont évacués par au moins un canal foré à partir de la section du tunnel dans la terre environnante.
4. Procédé selon la revendication 3, caractérisé en ce que les déblais sont pompés au travers d'au moins un tube posé dans le canal et réalisé de préférence en acier.
5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que les déblais sont évacués, par l'intermédiaire d'un canal sensiblement vertical, dans des eaux situées au-dessus du tunnel, par exemple sur le fond de la mer.
6. Procédé selon l'une des revendications 1 à 5, caractérisé en ce que les déblais sont évacués par un tube qui s'étend jusqu'à la surface des eaux situées au-dessus du tunnel.
7. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que les déblais sont évacués dans une zone de roches, de préférence sèche, située en dessous de la surface.
8. Procédé selon la revendication 7, caractérisé en ce que, à partir du tunnel, le canal destiné à l'évacuation des déblais est percé sensiblement horizontalement dans la zone rocheuse.
9. Procédé selon l'une des revendications 7 ou 8, caractérisé en ce que les déblais sont évacués dans la zone rocheuse par application d'une pression correspondant au moins à la pression de la terre à la sortie du canal, avec exécution d'un travail de déformation et/ou de déplacement.
10. Procédé selon l'une des revendications 7 à 9, caractérisé en ce qu'un liquide, de préférence de l'eau, est pompé dans la zone rocheuse sous une pression supérieure à la pression de la terre, avec exécution d'un travail de déformation et/ou de déplacement, et que les déblais sont ensuite amenés dans cette zone.
11. Procédé selon l'une des revendications 7 à 10, caractérisé en ce que, sous l'effet de la pression exercée par les déblais, une poche se remplissant de déblais est formée dans la terre.
12. Procédé selon l'une des revendications 1 ou 2, caractérisé en ce que les déblais sont pompés, par le forage radial dans la paroi du tunnel, dans la région située à proximité immédiate du tunnel, et que dans la région considérée, la paroi du tunnel est consolidée temporairement ou durablement ou renforcée sur la face intérieure pour absorber la pression des déblais.
EP87119301A 1986-12-31 1987-12-29 Procédé d'évacuation de déblai Expired - Lifetime EP0273441B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3644818 1986-12-31
DE19863644818 DE3644818A1 (de) 1986-12-31 1986-12-31 Verfahren zur beseitigung von abraum

Publications (3)

Publication Number Publication Date
EP0273441A2 EP0273441A2 (fr) 1988-07-06
EP0273441A3 EP0273441A3 (en) 1989-03-15
EP0273441B1 true EP0273441B1 (fr) 1991-06-05

Family

ID=6317439

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87119301A Expired - Lifetime EP0273441B1 (fr) 1986-12-31 1987-12-29 Procédé d'évacuation de déblai

Country Status (4)

Country Link
US (1) US4900191A (fr)
EP (1) EP0273441B1 (fr)
JP (1) JPS63176595A (fr)
DE (2) DE3644818A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0130668D0 (en) * 2001-12-21 2002-02-06 Mmd Design & Consult Apparatus and process for mining of minerals
US7013937B2 (en) * 2002-12-20 2006-03-21 Mmd Design And Consultancy Apparatus and process for mining of minerals
CN1307348C (zh) * 2004-03-15 2007-03-28 中国第二十冶金建设公司 地下结构半逆作法反向连接施工方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2233872A (en) * 1936-07-27 1941-03-04 California Talc Company Means and method for solidifying underground structures
GB1083322A (en) * 1964-03-21 1967-09-13 Mott Hay & Anderson Improvements in or relating to tunnelling apparatus and methods of tunnelling
US3386251A (en) * 1966-05-23 1968-06-04 Griffin Wellpoint Corp Method of strengthening and stabilizing compressible soils
US3616855A (en) * 1970-07-23 1971-11-02 New Mexico Tech Res Found Method of bulking or caving a volume of subsurface material
US4072018A (en) * 1975-04-30 1978-02-07 Alvarez Calderon Alberto Tunnel support structure and method
US4101333A (en) * 1976-08-19 1978-07-18 Joy Manufacturing Company Method of mine backfilling and material therefor
DE2644319A1 (de) * 1976-10-01 1978-04-06 Gewerk Eisenhuette Westfalia Hydraulische foerdereinrichtung fuer den abraumtransport beim auffahren unterirdischer hohlraeume, wie tunnel, stollen u.dgl.
US4370077A (en) * 1980-08-04 1983-01-25 Colgate Stirling A Method of pressurizing and stabilizing rock by periodic and repeated injections of a settable fluid of finite gel strength
DE3125644A1 (de) * 1981-06-30 1983-01-13 Wayss & Freytag Ag, 6000 Frankfurt Verfahren zum vortreiben eines tunnels unter verwendung eines schildes mit fluessigkeitsgefuellter arbeitskammer
GB2117817B (en) * 1982-03-23 1985-11-13 Frank P Davidson Improved tunnelling method
US4666346A (en) * 1986-03-24 1987-05-19 Hanna-Beric Systems, Inc. Rotatable fill pipe with collapsible backfill elbow and method of employing same to blind-fill underground voids

Also Published As

Publication number Publication date
US4900191A (en) 1990-02-13
JPS63176595A (ja) 1988-07-20
DE3770602D1 (de) 1991-07-11
EP0273441A2 (fr) 1988-07-06
DE3644818A1 (de) 1988-07-14
EP0273441A3 (en) 1989-03-15

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