EP0273104B1 - Fugenabdichtungsring - Google Patents

Fugenabdichtungsring Download PDF

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Publication number
EP0273104B1
EP0273104B1 EP87112449A EP87112449A EP0273104B1 EP 0273104 B1 EP0273104 B1 EP 0273104B1 EP 87112449 A EP87112449 A EP 87112449A EP 87112449 A EP87112449 A EP 87112449A EP 0273104 B1 EP0273104 B1 EP 0273104B1
Authority
EP
European Patent Office
Prior art keywords
sealing ring
shield
joint sealing
seal
joint
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
EP87112449A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0273104A1 (de
Inventor
Siegmund Babendererde
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.)
Hochtief AG
Original Assignee
Hochtief 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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6316277&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0273104(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hochtief AG filed Critical Hochtief AG
Publication of EP0273104A1 publication Critical patent/EP0273104A1/de
Application granted granted Critical
Publication of EP0273104B1 publication Critical patent/EP0273104B1/de
Anticipated expiration legal-status Critical
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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
    • E21D9/0635—Tail sealing means, e.g. used as end shuttering

Definitions

  • the invention relates to a joint sealing ring between a shield tail and a tub lining, - with an elastic inner seal that can be pressed against the outside of the tub lining.
  • the pressing of the shield tail joint behind a segment lining is a work process when driving a shield, especially in non-cohesive loose soil, which has so far not been able to be carried out satisfactorily.
  • the gap between the shield tail is the gap that occurs when a shield is fed behind the end of the shield and is limited by the surrounding floor and the segment back. Its thickness is determined by the addition of the thickness of the shield tail plate, the shield tail seal and a free space for the installation of the segments in the protection of the shield tail.
  • This gap which is of the order of 10 cm, may have to be pressed with a solidifying material at the same time as the shield is being advanced, in order to prevent the surrounding soil, which may also be in the groundwater, from penetrating into the gap.
  • the adverse effects would be loosening of the soil around the tunnel, which affects the bedding of the lining, and subsidence of the soil layers above the tunnel.
  • joint structures are often installed that are firmly connected to the steel plate of the shield casing.
  • a known joint sealing ring of the type mentioned at the outset (US Pat. No. 3,979,920) is also constructed accordingly.
  • Such joint constructions are intended to prevent the loose soil, possibly with groundwater, or the grouting material from penetrating into the shield.
  • the grouting material has been pressed into the gap either through holes in the segment segments perpendicular to the tunnel axis or through feed lines that are arranged on the shield jacket parallel to the tunnel axis.
  • the compression pressure is reliably greater than the pressure that arises from the pollution of the soil and groundwater. It cannot namely be reliably achieved that the volume of space which arises when the shield is pulled forward behind the shield tail can at the same time be compensated for by the volume of the pressed-in material.
  • Even small volume differences for example caused by the intermittent operation of a piston injection pump, lead to large pressure differences in the liquid grouting material. This then results in the penetration of groundwater and soil into the shield tail joint, which favors irregular fillings and subsidence.
  • a possible connection of several simultaneously connected and operated feed lines of the grouting material to a gas reservoir in order to compensate for the intermittent volume increase of the pumps does not lead to the predetermined constant pressure in the annular gap of the shield tail joint, because due to the small cross-section of the feed lines, the volume of the material feed per unit time is small compared to the volume increase caused by the shield feed.
  • the invention has for its object to keep the pressure in the liquid, pressed material approximately constant at a level that resists the pressure from the load from the surrounding soil and groundwater.
  • joint sealing ring is supported in a freely movable manner relative to the shield tail and tubbing expansion by means of adjustable support units in the direction of advance and on the one hand with compression material feed openings and on the other hand with an elastic outer seal made of a radially adjustable rubber or Plastic ring is provided.
  • the invention is based on the finding that the above-mentioned problem can only be solved if the joint sealing ring is not only designed as a separate component with respect to the segment lining but also with respect to the shield tail and is spring-supported. It is also important that the grouting material is not introduced through the segment lining, but through the joint sealing ring itself. It should also be noted with regard to the construction of the outer seal that the shield tail can be moved in both directions relative to this outer seal.
  • the joint sealing ring according to the invention is therefore no longer firmly connected to the shield casing, but is arranged to be movable in the longitudinal direction of the shield. It is supported elastically with a variable spring constant. Control and regulating elements ensure that the joint construction can only move parallel to the plane which is perpendicular to the axis of the plate. Spacer contacts should also limit the freedom of movement of the joint sealing ring; they give impulses that control the direction of advance depending on the ring movement.
  • the circumferential seal is pressed against the inside of the shield tail area and the outside of the tunnel tube from Tübbingen using rubber-elastic or resilient elements.
  • the forward movement of the freely movable sealing ring takes place completely decoupled from the movement of the shield while maintaining the pressure in the filling compound entered via the pump lines.
  • the pressure-stabilizing support units are used to control the sealing ring in a direction of advance.
  • the support assemblies expediently consist of cylinder piston assemblies.
  • a preferred embodiment is recommended which has proven itself in practice and in which the inner seal is designed as a trailing spring plate seal.
  • the joint sealing ring shown in the figures is arranged between the rear end of a shield tail 1 and the front end of a segment lining 2 and is used to seal the shield tail joint 3 in the course of pressing it with a pressing material, e.g. Concrete.
  • the joint sealing ring is freely movable relative to the shield tail 1 and segmental lining 2 by means of adjustable support units in the form of cylinder piston arrangements in the advancing direction, for example on the shield.
  • adjustable support units in the form of cylinder piston arrangements in the advancing direction, for example on the shield.
  • These supporting units are not shown in detail in the figures; 1 shows only one of a plurality of fastening eyes 4 to which the supporting units are fastened. Evenly distributed over the circumference, several grouting material supply openings 5 are provided on the front end face of the joint sealing ring (cf. FIG. 2).
  • the joint sealing ring has an elastic outer seal 6 and an elastic inner seal 7.
  • the elastic outer seal 6 consists of a rubber or plastic ring which can be placed on the inside of the tail 1; Corresponding radial ice screws 8 are provided for this.
  • the inner seal 7 which can be pressed against the outside of the segment lining 2 consists of a trailing spring plate seal which is fastened to the joint sealing ring by radial screws 9.

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)
  • Excavating Of Shafts Or Tunnels (AREA)
EP87112449A 1986-12-16 1987-08-27 Fugenabdichtungsring Expired - Lifetime EP0273104B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3642893 1986-12-16
DE19863642893 DE3642893A1 (de) 1986-12-16 1986-12-16 Fugenabdichtungsring

Publications (2)

Publication Number Publication Date
EP0273104A1 EP0273104A1 (de) 1988-07-06
EP0273104B1 true EP0273104B1 (de) 1990-08-08

Family

ID=6316277

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87112449A Expired - Lifetime EP0273104B1 (de) 1986-12-16 1987-08-27 Fugenabdichtungsring

Country Status (7)

Country Link
US (1) US4909668A (enrdf_load_stackoverflow)
EP (1) EP0273104B1 (enrdf_load_stackoverflow)
JP (2) JPS63151799A (enrdf_load_stackoverflow)
DE (1) DE3642893A1 (enrdf_load_stackoverflow)
DK (1) DK656487A (enrdf_load_stackoverflow)
ES (1) ES2016602B3 (enrdf_load_stackoverflow)
GR (1) GR3000721T3 (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3827441A1 (de) * 1987-08-13 1989-02-23 Hochtief Ag Hoch Tiefbauten Verfahren zum schildvortrieb eines tunnels
JP2807826B2 (ja) * 1988-06-27 1998-10-08 コニカ株式会社 感光材料処理装置
JPH0637832B2 (ja) * 1989-06-16 1994-05-18 株式会社クボタ建設 三等分割セグメントによる小口径シールド工法および該工法の実施に使用するシールド掘進機
CN114687751B (zh) * 2022-03-31 2025-03-18 上海隧道工程有限公司 盾构机主驱动水套结构

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3410098A (en) * 1964-12-01 1968-11-12 Robbins & Assoc James S Tail section seals for shield tunneling machines
US3561223A (en) * 1968-07-09 1971-02-09 John R Tabor Tunneling machine with concrete wall forming mechanism
US3979920A (en) * 1971-12-13 1976-09-14 National Research Development Corporation Sealing means
DE2620422C3 (de) * 1976-05-08 1979-08-02 Wayss & Freytag Ag, 6000 Frankfurt Ringspaltabdichtung für Schildvortriebsmaschinen
DE2725827C2 (de) * 1977-06-08 1985-10-24 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Messerschild-Vortriebseinrichtung
DE3006951A1 (de) * 1980-02-25 1981-09-10 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Vortriebseinrichtung zum auffahren von tunnels, unterirdischen kanaelen o.dgl.
DE3015210C2 (de) * 1980-04-19 1983-01-13 Bade & Theelen Gmbh, 3160 Lehrte Schildvortriebsmaschine für Tunnel und Strecken
DE3017057C2 (de) * 1980-05-03 1984-11-22 Hochtief Ag Vorm. Gebr. Helfmann, 4300 Essen Anordnung zur Verhinderung des Einbetonierens eines Nachlaufringschwanzes im Ortbetonausbau hinter einer Messervortriebsmaschine
DE3127311C1 (de) * 1981-07-10 1983-02-03 Hochtief Ag Vorm. Gebr. Helfmann, 4300 Essen "Vorrichtung zum Vortrieb eines Tunnels"
DE3407384A1 (de) * 1983-09-07 1985-08-29 Dyckerhoff & Widmann AG, 8000 München Verfahren zum herstellen eines roehrenfoermigen unterirdischen hohlraums, z.b. eines verkehrstunnels, und vorrichtung zum durchfuehren des verfahrens
JPS60126496A (ja) * 1983-12-13 1985-07-05 株式会社間組 シ−ルド掘進機の制御装置と制御方法
DE3411857C1 (de) * 1984-03-30 1985-04-18 Hochtief Ag Vorm. Gebr. Helfmann, 4300 Essen Zwischen einem Schildmantel einer Tunnelvortriebsmaschine sowie einer Tunnelinnenschalung laengsverstellbare Stirnschaltung

Also Published As

Publication number Publication date
DE3642893C2 (enrdf_load_stackoverflow) 1991-03-21
DK656487D0 (da) 1987-12-15
DE3642893A1 (de) 1988-07-07
JPH0594397U (ja) 1993-12-24
US4909668A (en) 1990-03-20
EP0273104A1 (de) 1988-07-06
ES2016602B3 (es) 1990-11-16
GR3000721T3 (en) 1991-10-10
JPS63151799A (ja) 1988-06-24
DK656487A (da) 1988-06-17
JPH0724478Y2 (ja) 1995-06-05

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