EP0397400A1 - Dichtung - Google Patents

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Publication number
EP0397400A1
EP0397400A1 EP90304830A EP90304830A EP0397400A1 EP 0397400 A1 EP0397400 A1 EP 0397400A1 EP 90304830 A EP90304830 A EP 90304830A EP 90304830 A EP90304830 A EP 90304830A EP 0397400 A1 EP0397400 A1 EP 0397400A1
Authority
EP
European Patent Office
Prior art keywords
seal member
gap
seal
members
section
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Withdrawn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
EP90304830A
Other languages
English (en)
French (fr)
Inventor
Edscer W.G.
R. Lester
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.)
EDSA Applied Industrial Coatings Ltd
Original Assignee
EDSA Applied Industrial Coatings Ltd
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 EDSA Applied Industrial Coatings Ltd filed Critical EDSA Applied Industrial Coatings Ltd
Publication of EP0397400A1 publication Critical patent/EP0397400A1/de
Withdrawn legal-status Critical Current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
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
    • E21D11/385—Sealing means positioned between adjacent lining members

Definitions

  • the present invention relates to seal means.
  • seal means we will describe the particular form of seal means with reference to a seal means for sealing the joint between two adjacent panels, in particular, segments of a tunnel lining, but the seal means may be utilised in other circumstances also.
  • the present invention provides according to a first aspect seal means for sealing between the adjacent edges of two members (such as tunnel lining segments), the edges being formed so as to provide a gap which is narrower towards the front surface of the members and wider behind the narrowest point, said seal means comprising a generally linear seal member of a cross section such that it is insertable into said gap past said narrowest part of said gap whilst in a first orientation and wider than the narrowest part of the gap in a second orientation, means being provided (which may be in the form of a threaded rod such as a bolt engaging, for example, a plate stretching between the front surfaces of the two members) for moving said generally linear seal member, when inserted into said gap and behind said narrowest part of said gap, towards said front surface of the members, whereby said generally linear seal member is, in use, inserted into said gap whilst in said second orientation, is turned to said first orientation, and is moved by said movement means into a position in which it sealingly engages behind the narrowest part of said gap.
  • the generally longitudinal seal member may have profiled edges to engage the edges of the members and said profiled edges may be curved so that when said profile edges engage the edges of the members, and so the generally linear seal member may pivot about said profiled edges.
  • FIG. 1 there is shown a part sectional perspective view of a tunnel lining 10 which comprises a plurality of tunnel lining segments 11 abutting together.
  • a set of segments forming a complete ring is referred to as a ring 12 and there are therefore provided between adjacent rings 12A, 12B shown in Figure 1, ring joints 13.
  • a radial joint 14 Between each segment 11 of a single ring 12 there is provided what is referred to as a radial joint 14.
  • the cross sections of the radial and ring joints are shown in enlarged sections of Figure 1.
  • the segments 11 may be of any suitable material, commonly being made of steel or more frequently concrete.
  • the blocks 11 have inner facing surfaces 18 and the adjacent edges 16,17 of adjacent blocks eg 11A, 1lb are shaped and this shape is illustrated in Figure 2 which shows a cross section through a ring joint 13.
  • edges 16,17 of the two adjacent segments 11A, liB are generally parallel to one another as shown at 26,27
  • the corners between the front surfaces 18 and edges 16,17 are chamfered at 19A, 19B.
  • Adjacent the front surfaces 18, one, 17, of the edges is shaped as shown in Figure 2.
  • a first surface 21 of edge 17 extends from the chamfer 19B away from the surface 18 in a direction increasingly further spaced from the edge 16 so as to form a wedge surface.
  • a second surface 22 extends back towards the opposite edge 16 to meet the parallel face 26 of the edge 17.
  • the effect of the first and second surfaces 21,22 is to provide a wedge shaped slot 23 with its narrowest part closest to the front surfaces 18 which slot 23 extends along the length of the ring joint 13.
  • FIG. 2 illustrates a seal means 28 providing a preferred embodiment of the invention.
  • the seal means 28 comprises a generally linear seal member 29, the cross section of which is illustrated in Figure 2 and which comprises an extrusion of fairly rigid material such as UPVC rigid unplasticised plastic material.
  • the cross-­section has a toe section 31 of a first circumference and a heel section 32 of a second larger circumference, the toe section and heel section, 31,32 incorporating (not shown) narrow generally radially extending ridges.
  • the seal member 29 is an extrusion and has the same cross section throughout its length, its length extending along the length of the ring joint 13.
  • the seal member 29 includes a T section slot 33 in which the head 34 of a movement and clamping member in the form of a bolt 36 is mounted.
  • the bolt 36 includes a threaded end section to which is screw threadedly engaged a nut 37.
  • a plate 38 which is shaped so as to extend along the ring joint 13, the plate 38 being formed of stainless steel with corrugations 39 and being of a width to extend between the front surfaces 18 of adjacent segments 11A, 11b.
  • the plate 38 incorporates holes 4i at intervals through which the bolts 36 may pass, the nut 37 compressing via a stainless steel washer 42 an "O" ring seal 43 of UPVC.
  • a UPVC strip 44 extends below the plate 38 and seals between the plate 38 and the front surfaces 18 of the adjacent segments 11a, 11b.
  • the seal member 29 will now begin to pivot about the toe 31 until it reaches the position shown at D in Figure 4. In this position it is firmly sealingly wedged between the parallel surface 27 and the wedge surface 21. It is still arranged so that the toe section 31 is upwardly (ie closer the edges 18) with respect to the heel section 32. Further tightening of the nut 37 will simply cause compression of the various sealing parts, for examples the strip 44, the "O" ring seal 43, and will cause lateral compression of the seal member 29 between its toe section 3i and heel section 32.
  • seal members 29 may be joined together end to end by means of a profile which engages in their 'T' section slots 33.
  • the plate 38 may be provided with suitable apertures in the form of nipples through which a sealant may be passed into the closed section between the seal member 29, and the plate 38 and adjacent parts of the edges of the segments 11A, 11b.
  • This sealant may be of an expanding type which includes an adhesive so that it adheres to the walls of the segments 11A, 11b and expands to fill the enclosure and is flexible to accommodate any future movement.
  • means should be provided to seal the closed section at the radial joints. Means may be provided at that point to insert the sealant.
  • the seal member 29, by virtue of its size and shape, in abutting into an effectively wedge shaped slot 23, may be usable even if the width of the slot 24 varies, as it normally does in use. Thus, sometimes that slot may be as small as 5 mm and sometimes as great as 20 mm.
  • the seal member 29 will simply engage with the walls 27 and 21 further up or further down the wedge shaped slot 23. In extreme cases, it may be necessary to provide seals member 29 of different widths.
  • the seal is a purely mechanical member seal member and may therefore be adjusted in use.
  • the seal member may be tightened up by rotating the nuts 37 thereafter or, indeed, it may be dismantled, removed and a different size of seal member 29 inserted. This is particularly desirable where long term maintenance is required and where it is necessary for, for example, to be able to remove a seal at any time during the life of the tunnel.
  • the cross section of the seal member 29 is particularly important.
  • the cross section comprises a toe section 31 which is generally of part circular section of a first smaller radius, and a heel section 32 of part circular section of a larger radius.
  • the overall shape therefore, is somewhat ovoid in section.
  • the seal member may be inserted without difficulty, either immediately after the particular ring sections have been completed or at a later date after, for example, pipes, electrical ducting and the like has been installed along the length of the tunnel.
  • the seal member 29 can simply be threaded behind the ducts.
  • the invention is not restricted to the details of the foregoing example.
  • other materials can be used, and other means of connecting the seal member 29 to the plate 38 may be provided.
  • Spring clips may for example be used in place of the nut and washer arrangement.
  • the bolt 36 may be mounted to the seal member 29 by a proper hinge if desired.
  • the seal member may be utilised to seal between other types of panels, for example wall panels in a building.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Lining And Supports For Tunnels (AREA)
EP90304830A 1989-05-11 1990-05-03 Dichtung Withdrawn EP0397400A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8910852 1989-05-11
GB898910852A GB8910852D0 (en) 1989-05-11 1989-05-11 Seal

Publications (1)

Publication Number Publication Date
EP0397400A1 true EP0397400A1 (de) 1990-11-14

Family

ID=10656584

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90304830A Withdrawn EP0397400A1 (de) 1989-05-11 1990-05-03 Dichtung

Country Status (2)

Country Link
EP (1) EP0397400A1 (de)
GB (1) GB8910852D0 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001055556A1 (de) * 2000-01-26 2001-08-02 Cmv Ag, Consulting- Montage-Verfahrens Technik Dichtungsanordnung sowie deren verwendung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1260049A (en) * 1969-10-23 1972-01-12 Norske Remfabrik As Weather strip for prefabricated elements of an outer wall
GB1269843A (en) * 1969-11-12 1972-04-06 Marley Buildings Ltd Improvements in joints between building units
DE2227243A1 (de) * 1972-06-05 1974-01-03 Buehrer Rudolf Dipl Ing Fugendichtung fuer bauteile
FR2210702A1 (de) * 1972-12-14 1974-07-12 Strasbourg Laminoirs

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1260049A (en) * 1969-10-23 1972-01-12 Norske Remfabrik As Weather strip for prefabricated elements of an outer wall
GB1269843A (en) * 1969-11-12 1972-04-06 Marley Buildings Ltd Improvements in joints between building units
DE2227243A1 (de) * 1972-06-05 1974-01-03 Buehrer Rudolf Dipl Ing Fugendichtung fuer bauteile
FR2210702A1 (de) * 1972-12-14 1974-07-12 Strasbourg Laminoirs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001055556A1 (de) * 2000-01-26 2001-08-02 Cmv Ag, Consulting- Montage-Verfahrens Technik Dichtungsanordnung sowie deren verwendung

Also Published As

Publication number Publication date
GB8910852D0 (en) 1989-06-28

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19910515