EP0595971A1 - Bouclier de percement a lames individuelles ou a enveloppe fermee. - Google Patents

Bouclier de percement a lames individuelles ou a enveloppe fermee.

Info

Publication number
EP0595971A1
EP0595971A1 EP92916282A EP92916282A EP0595971A1 EP 0595971 A1 EP0595971 A1 EP 0595971A1 EP 92916282 A EP92916282 A EP 92916282A EP 92916282 A EP92916282 A EP 92916282A EP 0595971 A1 EP0595971 A1 EP 0595971A1
Authority
EP
European Patent Office
Prior art keywords
shield
tongues
tail
knife
cover plate
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
EP92916282A
Other languages
German (de)
English (en)
Other versions
EP0595971B1 (fr
Inventor
Heinz-Theo Dipl-Ing Walbroehl
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.)
WALBROEHL H T DIPL ING
Original Assignee
WALBROEHL H T DIPL ING
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 WALBROEHL H T DIPL ING filed Critical WALBROEHL H T DIPL ING
Publication of EP0595971A1 publication Critical patent/EP0595971A1/fr
Application granted granted Critical
Publication of EP0595971B1 publication Critical patent/EP0595971B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • E21D9/0692—Cutter drive shields

Definitions

  • Driving shield formed from a driving shield with individual knives or a closed shield jacket
  • the invention relates to a tunneling shield formed from a knife shield with individual knives or a closed shield casing, as described in claim 1.
  • the knife tails or the shield tail serve as external formwork for the in-situ concrete expansion and at the same time for supporting the ground.
  • a hollow space is created over the entire outer circumference of the concrete which, when viewed in relation to the mountains or the ground, corresponds to the profile cross section of the knife tail or the shield tail.
  • the cavity created in this way must be filled in simultaneously with the advance of the knives or the shield casing. So far, the cavity has been blown with a granulate or pressed with a plastic filling material. For this purpose, pipes are led to the free ends of the knife tails or the shield tail, which introduce the granules or the plastic filling material into the cavity.
  • the cross-sectional height of the knife tails or the shield tail viewed in the direction of the ground or mountains, must be made correspondingly large in order to be able to reduce the rock pressure.
  • the removal takes place in the direction of advance along the long side of the knife tails or the shield tail. This enlarges the cavity to be filled even more.
  • the cavity created by the knife tail can be automatically filled, leaving only a very small cavity formed by the cover plates.
  • this cavity is extremely small due to the low cross-sectional height of the cover plate or the thickness of the cover plate.
  • the cover plate preferably extends over the entire surface of the knife tail or the shield tail tongues facing the ground or mountains.
  • a knife tail can thus be provided separately with a continuous cover plate.
  • cover plate over the entire surface of the knife or the shield casing facing the ground or mountains.
  • this results in a cover which extends in the longitudinal direction of the knife over its entire length.
  • a cover plate designed in this way then presents itself practically as an outer cylinder tube of the shield jacket.
  • the cover plate advantageously extends over the side terminations, i.e. the cross-sectional width of the whole
  • Cover plate covering the cross-sectional width of the knife are also cantilevered.
  • the tightness of a jacking shield formed from a knife shield with individual knives can be achieved by the lateral protrusions of the cover plate without the knife bodies having to lie close to one another, which could hinder cornering or even make it impossible.
  • the dimensions of the lateral projections of the cover plate are expediently the same.
  • the individual knives can be used at any point on the support frame or exchanged with one another.
  • the lateral areas or protrusions of the cover plates of juxtaposed knives are preferably designed to overlap with one another in the area of the front knife part and in the area of the knife tail up to the area of the free ends of the tongues.
  • the desired tightness of a tunneling shield consisting of a knife shield with individual knives is achieved by the overlap.
  • the side areas of the cover plates of knives arranged next to one another are expediently designed to be spaced apart from one another in the area outside the free cover plate section adjoining the tongues.
  • the overlap of the lateral areas of the cover plates or the lateral protrusions can thus be dispensed with in the aforementioned area.
  • this free area is then concreted, whereby the concrete in this area is then directly connected to the rock or soil.
  • a taper is advantageous because the propulsion of the knife is facilitated by such a configuration.
  • the lateral projections of the cover plate are preferably arranged in the area of the knife tail when a concreting section is being built onto the adjacent concreting sections of an overall concreting section.
  • the carrying direction is thus reversed via the short side of the cover plate, which is why the tongues do not have to be led to the end of the cover plate, but the free cover plate section can remove the rock pressure without support.
  • the length of the tongues or the shield tail tongues and the length of the cover plate section adjoining the free ends of the tongues or the shield tail tongues is greater than the length of a concreting section.
  • the concreting section to be created can thus be spanned by part of the tongues and the cover plate section.
  • part of the free cover plate section adjoining the tongues or the shield tail tongues advantageously lies in the area of the penultimate, already created concreting section, part of the tongues or the shield tail tongues on the last,
  • the concreting section already prepared rests and the remaining part of the tongues or the shield tail tongues protrudes into the concreting section to be created.
  • the wake-up knife or the shield tails in the direction of advance.
  • the cavity resulting from the advancement of the knife or shield shell can also be filled in when creating the concreting section. Securing the mountains or the soil in the area of the cavity is essentially essential taken from the cover plate section.
  • rib-like cavities have been formed by the tongues or shield tail tongues, which are also filled in and thus result in a toothing of the concreting sections arranged one behind the other in the direction of advance.
  • the knife tail or the shield tail seen in the direction of advance, between its connection to a front knife part or the front shield casing and the end region, which is formed by the tongues or shield tail tongues and the adjoining free cover plate section, consists of an im Cross-section continuous body, which is located in the so-called initial area of the knife tail or the shield tail.
  • the continuous body provided in the beginning area provides the necessary section modulus of the knife tail or the shield tail in the direction of advance, since in this area the rock pressure is removed in the longitudinal direction of the knife tail or the shield tail and no longer in the end area as in the transverse direction the tongues or shield tail tongues.
  • the cross-sectional width of the knife tail in the connection area to the front knife part expediently corresponds to its cross-sectional width. There is thus a continuous transition between the front knife part and the knife tail.
  • the knife tail or the shield tail is preferably tapered towards its free end, as seen against the direction of the breakout, in its cross-sectional width. This facilitates the advance of the knives or the shield tail.
  • the knife or the tail of the shield are expediently in the region of the shield tail tongues with respect to their respective Longitudinal axes, that is, formed symmetrically in the direction of advance.
  • the knives of a drive shield consisting of a knife shield with individual knives can be arranged at any desired point on the support frame or exchanged with one another.
  • the distance between the tongues or the shield tail tongues essentially corresponds to the cross-sectional width of the tongues or the shield tail tongues.
  • the cross section of the knife tail or the shield tail is preferably seen in its initial region as well as in its region of the tongues or the shield tails, from the mountains or the ground to the center of the outbreak , rejuvenated. If necessary, a simplified movement towards the mountains or the ground can result during the advance.
  • the proposed design makes it possible to make the cross-sectional height of the knife tail or the shield tail, as seen from the mountains or the bottom to the center of the outbreak, smaller than that of the front part of the knife or the front shield shell.
  • the cross-sectional height of the knife tail or shield tail is expediently constant.
  • the starting area of the knife tail or the shield tail advantageously consists of at least two spaced-apart box profiles which are connected to one another via upper and lower additional surfaces to form a larger, closed box profile forming the starting area of the knife tail or shield tail.
  • simply designed box profiles can be used be that can be connected to each other via the additional areas to a larger box profile.
  • the tongues or shield tail tongues then expediently consist of an extension of the spaced-apart box profiles of the starting area.
  • the tongues or shield tail tongues do not have to be connected as separate profiles to the starting area of the knife tail or shield tail.
  • Fig. 1 shows a longitudinal section through a knife jacking according to section I-I in Fig. 3 in advanced
  • FIG. 2 shows a longitudinal section according to FIG. 1 after the concreting section has been created
  • FIGS. 1 and 2 show a bottom view of the knife according to FIGS. 1 and 2,
  • Fig. 5 is a section along the line III-III in Fig. 2 and
  • FIG. 6 shows a section along the line IV-IV in FIG. 2.
  • FIG. 1 shows a longitudinal section through a knife 2 of a jacking plate formed from individual knives made of individual knives in the advanced position before the creation of a concreting section 12 shown in FIG. 2, which adjoins the concreting section 14 in front of it connects.
  • the knife 2 consists of a front knife part 16 and a knife tail 4.
  • the front knife part 16 is mounted on two support frames 24.
  • the knife tail 4 is supported on the concreting section 14 and, with the end of the knife tail, overlaps the concreting section 26 lying in front of the concreting section 14.
  • a cover plate 10 extends over the entire longitudinal direction of the knife 2.
  • the knife tail below the cover plate 10, as seen at the center of the cut-out, has a body 18 forming a closed box and two tongues 8 adjoining the body 18.
  • the area between the connection of the knife tail 4 to the front knife part 16 and the beginning of the tongues 8 is referred to as the start region 20 of the knife tail 4.
  • the area from the connection of the tongues 8 to the body 18 to the free end of the cover plate 10 is referred to as the end area 6 of the knife tail 4.
  • the cover plate 10 projects beyond the lateral terminations, ie the cross-sectional width of the front knife part 16 and the knife tail 4 on both sides.
  • the lateral ends of the cover plate 10 are designed to overlap in the initial region 20 and in the region of the tongues 8. Only in the area of the free cover plate section 28, which adjoins the free ends of the tongues 8, are the lateral areas of the cover plates 10 of knives arranged next to one another spaced apart from one another (FIG. 6).
  • the spacing of the cover plates 10 can take place by step-like incisions in the lateral areas of the cover plates 10 or by a tapering of the cross-sectional width of the cover plates 10 which runs counter to the direction of advance, which was not shown in FIG. 3 for reasons of simplification. 1 it is evident how the measuring tail 4 is supported on the concrete sections 14 and 26.
  • the sea 2 is guided so far into its advanced position that part of the tongues 8 protrudes beyond the last, prepared concrete section 14 in the direction of advance.
  • a cavity 30 formed above the last concreting section by the body 18 can be filled, since the concrete can penetrate into this cavity 30 between the tongues 8.
  • the end of the cavity 30 opposite the free ends of the tongues 8 has rib-shaped recesses formed by the tongues 8, as a result of which the individual concreting sections can be interlocked.
  • the cover plate 10 remains.
  • the spacing of the lateral ends of the cover plate 10 also fills the space between the lateral ends of adjacent cover plates 10 with concrete, which in this area extends to the mountains or the ground.
  • the body 18 is formed from two box profiles 22 spaced apart from one another (FIG. 4), which are connected to one another via an additional plate (not shown) to form a closed box forming the body 18. 4 and 5 it can also be seen that the overlapping of the lateral areas of the cover plates 10 of adjacent knives is accomplished by bending one of the two lateral areas.
  • the tongues 8 preferably consist of an extension of the box profiles 22, the additional plates then being omitted in order to obtain the desired free space between the tongues 8.
  • the cross sections of different parts are tapered.
  • the body 18 as well as the tongues 8 are tapered in their cross-sectional width towards the free end of the tongues 8.
  • 4 and 5 that the cross sections of the body 18 and the tongues 8, as viewed in the direction of the center of the cutout, also taper.
  • cover plate 10 can also taper in the area of the cover plate section 28 towards the free end of the cover plate 10, however, there must always be a lateral protrusion of the cover plate 10 over the lateral ends of the tongues 8, so that the cover plate 1.0 can adhere to the adjacent concreting sections as required, so that the load-bearing effect is reversed.

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)
  • Lining And Supports For Tunnels (AREA)

Abstract

Dans un bouclier de percement à lames individuelles à enveloppe fermée, les queues (4) des lames ou la queue du bouclier servent de coffrage extérieur du second oeuvre en béton coulé sur place. Les queues (4) des lames ou la queue du bouclier créent toutefois des cavités (30) qui doivent être remplies afin d'éviter des affaissements. Afin de pouvoir remplir immédiatement ces cavités (30) en même temps que l'on produit une section de bétonnage, la zone terminale (6) de chaque queue (4) de lame est formée par au moins une languette (8) ou la zone terminale de la queue du bouclier est formée par plusieurs languettes, alors qu'une plaque de recouvrement (10) est montée sur la face supérieure des languettes (8) ou des languettes de la queue du bouclier tournée vers le sol ou vers les rochers. Cette plaque de couverture (10) s'étend dans le sens de sa longueur au-delà de l'extrémité libre des languettes (8) des queues des lames ou du bouclier et dans le sens de sa largeur au-delà des arêtes latérales de la queue (4) de lame.
EP92916282A 1991-07-23 1992-07-22 Bouclier de percement a lames individuelles ou a enveloppe fermee Expired - Lifetime EP0595971B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4124420 1991-07-23
DE4124420A DE4124420A1 (de) 1991-07-23 1991-07-23 Aus einem vortriebsschild mit einzelnen messern oder einem geschlossenen schildmantel gebildeter vortriebsschild
PCT/EP1992/001678 WO1993002276A1 (fr) 1991-07-23 1992-07-22 Bouclier de percement a lames individuelles ou a enveloppe fermee

Publications (2)

Publication Number Publication Date
EP0595971A1 true EP0595971A1 (fr) 1994-05-11
EP0595971B1 EP0595971B1 (fr) 1996-10-23

Family

ID=6436846

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92916282A Expired - Lifetime EP0595971B1 (fr) 1991-07-23 1992-07-22 Bouclier de percement a lames individuelles ou a enveloppe fermee

Country Status (4)

Country Link
EP (1) EP0595971B1 (fr)
DE (2) DE4124420A1 (fr)
ES (1) ES2094921T3 (fr)
WO (1) WO1993002276A1 (fr)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2555524C2 (de) * 1975-12-10 1983-12-15 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Vortriebsmesser für einen Verbauschild
DE3813907A1 (de) * 1988-04-25 1989-11-02 Walbroehl H T Verfahren und vorrichtung zum ausbrechen und fertigausbauen von stollen, tunneln, schaechten od. dgl.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9302276A1 *

Also Published As

Publication number Publication date
DE59207439D1 (de) 1996-11-28
ES2094921T3 (es) 1997-02-01
DE4124420A1 (de) 1993-01-28
EP0595971B1 (fr) 1996-10-23
WO1993002276A1 (fr) 1993-02-04

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