EP3626931B1 - Structure de cadre de poussée mobile, dispositif de démarrage de tunnels et procédé de démarrage de la construction de tunnels - Google Patents

Structure de cadre de poussée mobile, dispositif de démarrage de tunnels et procédé de démarrage de la construction de tunnels Download PDF

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Publication number
EP3626931B1
EP3626931B1 EP18196174.9A EP18196174A EP3626931B1 EP 3626931 B1 EP3626931 B1 EP 3626931B1 EP 18196174 A EP18196174 A EP 18196174A EP 3626931 B1 EP3626931 B1 EP 3626931B1
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EP
European Patent Office
Prior art keywords
shove
frame structure
frame
movable
tunnels
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.)
Active
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EP18196174.9A
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German (de)
English (en)
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EP3626931A1 (fr
Inventor
Joaquín HORRILLO COLLADO
Alessio MENGHINI
Lucía VALLE GARCÍA
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.)
Ferrovial Construction UK Ltd
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Ferrovial Agroman UK Ltd
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Priority to EP18196174.9A priority Critical patent/EP3626931B1/fr
Publication of EP3626931A1 publication Critical patent/EP3626931A1/fr
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Publication of EP3626931B1 publication Critical patent/EP3626931B1/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
    • E21D9/005—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries by forcing prefabricated elements through the ground, e.g. by pushing lining from an access pit
    • 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
    • E21D9/0621—Shield advancing devices

Definitions

  • This invention relates to a movable shove frame structure and a device for starting tunnels that comprises a movable shove frame structure.
  • the invention also relates to a method for starting the construction of tunnels, that uses the device for starting tunnels.
  • Mechanised tunneling are all the tunneling techniques in which excavation is performed mechanically, for instance with the use of a tunnel boring machine (TBM).
  • TBM tunnel boring machine
  • tunnel boring machines comprising a cutter head fitted to a shield body to power the excavation advancement and erect a tunnel lining to construct a tunnel.
  • shove rings are also required to facilitate TBM launch and burial, the shove rings also requiring additional temporary works to support them. All of this constitutes an impediment and means extended durations within the restricted confines of a shaft or a chamber.
  • EP 1650402 A1 referred to a "Method and apparatus for making tunnels by means of shield advancement" describes a method for shield approach for the manufacture of tunnel tubes by means of shield driving, whereby a tunnel boring machine is advanced through a transit opening of a driving wall, whereby the tractive forces of the tunnel boring machine during the heading are initiated in a thrust ring arranged behind the tunnel boring machine, of which the thrust ring is connected to the driving wall via tractive force transferring connecting elements and whereby the thrust ring is advanced by means of advancing elements arranged on the tractive force transferring connecting elements.
  • This document also refers to an apparatus for shield approach for the manufacture of tunnel tubes by means of shield driving, whereby a tunnel boring machine is envisaged for the advancement through a transit opening of a driving wall, whereby a thrust ring is envisaged in which the approach forces of the tunnel boring machine are initiated during the heading, whereby the thrust ring is connected to the driving wall via tractive force transferring connecting elements and whereby the thrust ring is advanced by means of advancing elements arranged on the tractive force transferring connecting elements.
  • EP 1650402 A1 allows a particular method and apparatus for making tunnels using a "movable" shove frame with advantages over the prior art standard “static" frames, the main concept being the utilization of the TBM propulsion cylinders to index forward the shove frame in a sequenced manner to aid TBM burial/launch.
  • it still presents a series of disadvantages. For instance, it uses cable pulling techniques and a modified headwall to incrementally pull the shove frame forward.
  • the tractive force transferring connecting elements for instance, in the form of threaded rods
  • into a substantial chamber or shaft wall load bearing may be at risk of breakage, which can be a risk of accident for the people involved in the operations.
  • a homogeneous thrust is also difficult to achieve and alignment could deviate.
  • JP H1130091 A referred to a "transferable back anchor device and shield departure method by use thereof” allows to dispense with temporarily assembling segments required in conventional methods to increase the working efficiency in the initial excavation and to reduce the cost and increase the safety and further, to make the shaft size small.
  • the transferable back anchor is attached to the rear side of a shield machine in a departure shaft to follow the advancing shield machine and support the reactive force against the thrust at every advancing step of the shielding machine.
  • the back anchor is constituted of a frame-shaped back anchor body provided with grippers which are freely stuck with pressure on the side wall of the shaft at both right and left sides and a press ring integrally provided at the shield machine side face of the back anchor body to receive the reactive force against the thrust from the shield machine.
  • JP H06173579 A makes it possible to shorten construction period at site by a method wherein welding of a reaction force receiving plate at the time of forward movement of a shield machine and cutting of the reaction receiving plate after the forward movement thereof is not needed.
  • a shield machine is supported by a guide member of a start frame so as to be movable in a direction of a cutting face, while a reaction force receiving base is mounted on a supporter member for setting the base of the frame and the base is releasably fixed to a shield jack placed in the body of the machine, and thereafter a pivoting claw is pivoted in the direction of the member to hold the member from both sides thereof, thereby fixing the base to the member.
  • the jack of the machine is actuated to allow the machine to slide over the member, thereby causing the machine to move by one stroke in the direction of the facing, following which the claw is pivoted in a direction opposite to the member to release the base from the member and thereafter the jack is actuated in a contraction direction thereof to move the base by one stroke in the direction of the facing, and then the machine is moved in the direction of the facing in a similar manner.
  • the object of the present invention is to provide a movable shove frame structure that avoids the mentioned drawbacks.
  • the invention provides a movable shove frame structure, comprising:
  • the invention also provides a device for starting tunnels comprising a movable shove frame structure of the invention and a tunnel boring machine that comprises several thrust cylinders that can be extended and retracted, wherein the thrust cylinders are attached to the shove ring of the movable shove frame structure by pulling means.
  • the invention also provides a method for starting the construction of tunnels, that uses a device for starting tunnels of the invention, that comprises the following steps:
  • the invention allows a device and a method for starting the constructions of tunnels which provides safety benefits, less activities, reduced durations and cost savings.
  • Other characteristics and advantages of the present invention will be clear from the following detailed description of several embodiments illustrative of its object in relation to the attached figures.
  • Figures 1 and 4 show the moveable shove frame structure 1 of the invention connected to a tunnel boring machine 11. These Figures 1 and 4 also show the wall 9 to be excavated.
  • the TBM shield body comprises several thrust cylinders 12 that can be extended and retracted.
  • the movable shove frame structure 1 comprises:
  • the shove frame 2 also comprises a number of steel beams, apart from the support legs 3 to be anchored to the floor 8.
  • the shove frame structure 1 may comprise two parallel lateral support legs 3.
  • Figure 2A corresponds to section A-A of Figure 1 and shows the elements of the shove frame 2.
  • Figure 3 corresponds to section B-B of Figure 1 and shows the cross section of the TBM 11. It also shows a cradle table 15 (preferably made of steel) on which the TBM 11 is placed.
  • FIG. 2A The detail A in Figure 2A is enlarged in Figure 2B .
  • FIG. 2B it can be seen that the parallel support legs 3 of the shove frame 2 can be attached to the floor 8.
  • a gliding element 6 is placed under each lateral support leg 3 of the shove frame 2 (in Figure 2B , it is a U-shaped sliding channel).
  • the gliding element 6 will have predefined anchoring points corresponding to the design and manufactured anchoring positions where the removable fixing means 7 can be placed, as can be seen in Figures 1 and 4 .
  • the removable fixing means 7 may be, for instance, fixing bolts on cast in situ reaction sockets 14 within the structure floor 8.
  • Figures 5A and 5B show respectively a front view and a side view of the shove ring 4 of the shove frame structure 1.
  • Figure 7 shows an enlarged view of detail B of Figures 1 and 4 , and it represents the attachment between a thrust cylinder 12 of the TBM 11 and the shove ring 4 of the shove frame structure 1.
  • the thrust cylinders 12 are attached to the shove ring 4 by pulling means 13 (for instance, chains, as represented in Fig. 7 ).
  • Other suitable pulling means 13 can be any other kind of connection between two elements like a welding or a bolted joint.
  • the thrust cylinders 12 are placed in the periphery of the TBM 11 (as shown in Figure 3 ), and are arranged circumferentially and evenly spaced from each other.
  • the device of the invention is suitable for carrying out the method for starting tunnels that will be described next.
  • the method for starting the construction of tunnels according to the invention comprises the following steps:
  • the final step allows to absorb the thrust force during excavation under the pressure of reinforcement of the anchoring of the shove frame 2 to the floor.
  • the distance d that the TBM 11 advances in each cycle of steps d) to g) can be predefined and will depend on the ring design length and associated thrust cylinders elongation. As an example, it can be comprised between 1,5 m and 2 m.
  • Figures 8A and 8B correspond to a first advancement or pushing step in which the TBM 11 is pushed forwards a distance d
  • Figures 10A and 10B correspond to a second advancement or pushing step in which the TBM 11 is pushed forwards a distance d.
  • Figures 9A and 9B correspond to a first pulling step in which the shove frame structure 1 is pushed forwards a distance d
  • Figures 11A and 11B correspond to a second pulling step in which the shove frame structure 1 is pushed forwards a distance d.
  • FIGS. 12A and 12B show the shove ring 4 in its final position

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)
  • Excavating Of Shafts Or Tunnels (AREA)

Claims (8)

  1. Structure de châssis de poussoir mobile (1), comprenant :
    - un cadre de poussoir (2) qui comprend des jambes de support (3),
    - un anneau de poussée (4) et
    - un anneau de poussée (5) placé entre le cadre de piston (2) et l'anneau de piston (4), et
    - un élément de glissement (6) sous chaque jambe de support (3) du cadre de poussée (2)
    caractérisé en ce qu'il comprend en outre des moyens de fixation amovibles (7) pour ancrer les pieds de support (3) au sol (8).
  2. Structure de châssis de pelle mobile (1) selon la revendication 1, dans laquelle les éléments de glissement (6) sont des canaux.
  3. Structure de cadre de poussoir mobile (1) selon la revendication 1 ou 2, dans laquelle le cadre de poussoir (2) comprend deux jambes de support latérales parallèles (3).
  4. Structure de châssis de poussoir mobile (1) selon l'une des revendications précédentes, dans laquelle les éléments de glissement (6) comprennent plusieurs trous traversants (10) correspondant aux positions d'ancrage.
  5. Structure de cadre de tige mobile (1) selon l'une des revendications précédentes, dans laquelle les moyens de fixation amovibles (7) pour ancrer les pieds de support (3) au sol (8) sont des boulons.
  6. Dispositif de démarrage de tunnels, comprenant une structure de cadre de piston mobile (1) selon l'une quelconque des revendications 1 à 5 et une machine de forage de tunnel (11) qui comprend plusieurs cylindres de poussée (12) qui peuvent être étendus et rétractés, dans lequel les cylindres de poussée (12) sont fixés à l'anneau de piston (4) de la structure de cadre de piston mobile (1) par des moyens de traction (13).
  7. Dispositif de démarrage de tunnels selon la revendication 6, dans lequel les moyens de traction (13) sont des chaînes.
  8. Méthode de démarrage de la construction de tunnels, qui utilise un dispositif de démarrage de tunnels selon les revendications 6 ou 7, qui comprend les étapes suivantes :
    a) mise en place de la machine de forage de tunnel assemblée (11) dans la position de départ,
    b) mise en place de la structure de cadre de tige assemblée (1) et ancrage de la structure de cadre de tige (1) au sol (8) avec des moyens de fixation amovibles (7),
    c) connexion des vérins de poussée (12) de la machine de forage tunnel (11) à l'anneau de poussée (4) par des moyens de traction (13),
    d) les cylindres de poussée (12) de la machine de forage tunnel (11) sont étendus, poussant contre la structure de châssis de piston (1) et faisant avancer la machine de forage tunnel (11) à une distance dans la paroi (9) qui coïncide avec l'extension des cylindres de poussée (12),
    e) les moyens de fixation (7) ancrant la structure de cadre de tige (1) au sol (8) sont libérés,
    f) les cylindres de poussée (12) sont rétractés et les moyens de traction (13) entre les cylindres de poussée (12) de la machine de forage tunnel (11) et l'anneau de poussée (4) tirent la structure de cadre de poussée (1) sur la distance correspondant à l'avance des cylindres de poussée (12), de sorte que la structure de cadre de poussée (1) reste sur la position d'ancrage suivante,
    g) le cadre de poussoir (2) est ancré au sol (8) avec les moyens de fixation amovibles (7),
    h) répéter le cycle des étapes d) à g) plusieurs fois jusqu'à ce que la structure de cadre de poussée (1) atteigne la paroi de puits pour permettre le début du premier revêtement de tunnel permanent, et
    i) l'ancrage définitif et renforcé du châssis de poussoir (2) au sol (8).
EP18196174.9A 2018-09-24 2018-09-24 Structure de cadre de poussée mobile, dispositif de démarrage de tunnels et procédé de démarrage de la construction de tunnels Active EP3626931B1 (fr)

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Application Number Priority Date Filing Date Title
EP18196174.9A EP3626931B1 (fr) 2018-09-24 2018-09-24 Structure de cadre de poussée mobile, dispositif de démarrage de tunnels et procédé de démarrage de la construction de tunnels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18196174.9A EP3626931B1 (fr) 2018-09-24 2018-09-24 Structure de cadre de poussée mobile, dispositif de démarrage de tunnels et procédé de démarrage de la construction de tunnels

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EP3626931A1 EP3626931A1 (fr) 2020-03-25
EP3626931B1 true EP3626931B1 (fr) 2023-06-07

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111456745A (zh) * 2020-04-10 2020-07-28 齐鲁交通发展集团有限公司 一种隧道内盾构主机的拖拉装置及拖拉方法
CN112832786A (zh) * 2021-03-04 2021-05-25 北京市政建设集团有限责任公司 一种反力架

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06173579A (ja) * 1992-12-03 1994-06-21 Mitsubishi Heavy Ind Ltd シールド掘削機の前方移動反力受装置
JP3821919B2 (ja) * 1997-07-10 2006-09-13 佐藤工業株式会社 移動式バックアンカー装置およびこれを用いたシールド発進方法
ATE387567T1 (de) 2004-10-20 2008-03-15 Hochtief Construction Ag Verfahren und vorrichtung zur schildanfahrt für die herstellung von tunnelröhren mittels schildvortrieb
CN207513606U (zh) * 2017-12-01 2018-06-19 粤水电轨道交通建设有限公司 一种用于盾构始发的反力装置

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