EP0354335A2 - Support pour un bouclier de percement - Google Patents

Support pour un bouclier de percement Download PDF

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Publication number
EP0354335A2
EP0354335A2 EP89111810A EP89111810A EP0354335A2 EP 0354335 A2 EP0354335 A2 EP 0354335A2 EP 89111810 A EP89111810 A EP 89111810A EP 89111810 A EP89111810 A EP 89111810A EP 0354335 A2 EP0354335 A2 EP 0354335A2
Authority
EP
European Patent Office
Prior art keywords
formwork
shield
support
ring
rings
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.)
Withdrawn
Application number
EP89111810A
Other languages
German (de)
English (en)
Other versions
EP0354335A3 (fr
Inventor
Lothar Dr. Anheuser
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.)
Wayss and Freytag AG
Original Assignee
Wayss and Freytag AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wayss and Freytag AG filed Critical Wayss and Freytag AG
Publication of EP0354335A2 publication Critical patent/EP0354335A2/fr
Publication of EP0354335A3 publication Critical patent/EP0354335A3/fr
Withdrawn legal-status Critical Current

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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
    • E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
    • E21D9/0607—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield being provided with devices for lining the tunnel, e.g. shuttering

Definitions

  • the invention relates to a support for a jacking shield, as described in the preamble of claim 1.
  • reaction forces cannot be transferred directly to the lining.
  • the pressure of the freshly poured concrete on the forehead formwork in the annular space is generally not sufficient to absorb the reaction forces that arise during driving. They are therefore introduced at the front of the formwork and released from the formwork by skin friction to the already hardened concrete in the rear, switched area.
  • the jacking presses supported on the formwork must be moved back at least in the area to be cleared for the installation of the formwork part to be moved.
  • the shield is not supported by jacking presses for the period of implementation of this formwork part, at least in sections of the shield circumference.
  • a disadvantage of this previously used auxiliary support is that the connections for anchoring the carrier to the formwork have to be loosened each time a formwork ring is moved through the erector with the folded formwork ring. Furthermore, these limited number of unwieldy braces of the auxiliary support connected to the formwork generate forces which are the cause of a very unfavorable load on the formwork, the front formwork section being completely relieved of longitudinal forces during the reinforcement.
  • the invention intends to further develop a support for a jacking shield of the generic type such that when a new formwork ring for in-situ concrete expansion is set, the driving shield can be securely supported on the formwork rings, the course of forces in the formwork and in-situ concrete expansion during the auxiliary support is virtually unchanged from the state of the advance remains.
  • the auxiliary support of the shield during the relocation of the formwork rings is brought about by length-adjustable support units arranged concentrically on the inside of the jacket.
  • these support units are simple elements that are common in tunnel construction and can be actuated fully mechanically.
  • the support units on separate lugs on the outer surface of the formwork outside the abutting surfaces of the individual formwork rings do not require any additional handles on the formwork or on the traveling girder if a formwork ring is to be moved.
  • the freedom of movement of the erector on the carriage is not restricted by any auxiliary devices for supporting the shield.
  • the installation of the support units according to the invention requires a slight extension of the tail part of the shield and a shield tail seal with an enlarged working area, which results from the widening of the annular gap necessary for the sliding over of the lugs.
  • a tunnel tube 2 is opened with a shield 1.
  • the lining 3 of the tunnel tube 2 consists of in-situ concrete, which is pressed through openings in the front formwork 4 into the annular gap 5, which the breakout profile 6 and the outer surface of the inner formwork 7 form together.
  • the inner formwork 7 is built up from formwork rings 8.9.
  • the jacking presses 12 are supported at the front against the shield 1 and at the rear via a pressure ring 13 on the end face 11 of the foremost formwork ring 9.
  • the jacking presses 12 transmit the reaction forces from the jacking and any excess pressure in the excavation chamber 14 to the inner formwork 7.
  • the jacking presses 12 are pulled in with the pressure ring 13 in order to make room for inserting a formwork ring 10 which has been removed from the rear end of the inner formwork 7 in front of the last installed formwork ring 9 of the inner formwork.
  • the formwork ring 10 can be dismantled unhindered by the support units 16 from the erector 18 movable on the driving beam 19 at the rear end of the inner formwork 7, transported to the front end of the inner formwork 7 and reinstalled will.
  • the jacking presses 12 are pressed with the pressure ring 13 against the end face 11 of the newly installed formwork ring and a new jacking section can begin.
  • the supports 16 can be withdrawn. While the supports 16 are in operation, suitable devices - in the example a hydraulic cylinder 21 - press the head 20 of the support 16 against the outer surface of the inner formwork 7.
  • the tail 15 with the front formwork 4 and the tail seal 22 must slide over the lugs 17.
  • the lugs 17 are therefore expediently tapering backwards against the formwork surface with a slight slope and the annular gap 23 between the end formwork 4 and the outer surface of the inner formwork 7 is correspondingly wider.
  • a shield tail seal 22 with a correspondingly enlarged working area must be provided.

Landscapes

  • 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)
  • Lining And Supports For Tunnels (AREA)
EP19890111810 1988-08-10 1989-06-29 Support pour un bouclier de percement Withdrawn EP0354335A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19883827098 DE3827098C1 (fr) 1988-08-10 1988-08-10
DE3827098 1988-08-10

Publications (2)

Publication Number Publication Date
EP0354335A2 true EP0354335A2 (fr) 1990-02-14
EP0354335A3 EP0354335A3 (fr) 1990-12-19

Family

ID=6360569

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890111810 Withdrawn EP0354335A3 (fr) 1988-08-10 1989-06-29 Support pour un bouclier de percement

Country Status (4)

Country Link
EP (1) EP0354335A3 (fr)
DE (1) DE3827098C1 (fr)
ES (1) ES2013224A4 (fr)
GR (1) GR900300053T1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0890708A1 (fr) 1997-07-11 1999-01-13 Heerema Ondergrondse Infrastructuren B.V. Procédé, système et dispositif pour la construction de parois dans le sol

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT394032B (de) * 1990-09-04 1992-01-27 Anton Ruef Einrichtung zum aufbereiten von oelhaltigen schlaemmen

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3515680A1 (de) * 1983-09-07 1986-11-06 Dyckerhoff & Widmann AG, 8000 München Verfahren zum herstellen eines roehrenfoermigen unterirdischen hohlraums, z. b. einer rohrleitung, sowie vorrichtung zum durchfuehren des verfahrens
DE3628028A1 (de) * 1986-08-19 1988-02-25 Gewerk Eisenhuette Westfalia Schildvortriebseinrichtung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3015210C2 (de) * 1980-04-19 1983-01-13 Bade & Theelen Gmbh, 3160 Lehrte Schildvortriebsmaschine für Tunnel und Strecken

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3515680A1 (de) * 1983-09-07 1986-11-06 Dyckerhoff & Widmann AG, 8000 München Verfahren zum herstellen eines roehrenfoermigen unterirdischen hohlraums, z. b. einer rohrleitung, sowie vorrichtung zum durchfuehren des verfahrens
DE3628028A1 (de) * 1986-08-19 1988-02-25 Gewerk Eisenhuette Westfalia Schildvortriebseinrichtung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0890708A1 (fr) 1997-07-11 1999-01-13 Heerema Ondergrondse Infrastructuren B.V. Procédé, système et dispositif pour la construction de parois dans le sol
US6357965B2 (en) 1997-07-11 2002-03-19 Heerema Ondergrondse Infrastructuren B.V. Method, system and device for building a wall in the ground

Also Published As

Publication number Publication date
ES2013224A4 (es) 1990-05-01
DE3827098C1 (fr) 1989-12-21
EP0354335A3 (fr) 1990-12-19
GR900300053T1 (en) 1991-07-31

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