EP0359988A2 - Liaison jointoyée de deux parois courbes avec transition à une paroi rectiligne - Google Patents

Liaison jointoyée de deux parois courbes avec transition à une paroi rectiligne Download PDF

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Publication number
EP0359988A2
EP0359988A2 EP89114986A EP89114986A EP0359988A2 EP 0359988 A2 EP0359988 A2 EP 0359988A2 EP 89114986 A EP89114986 A EP 89114986A EP 89114986 A EP89114986 A EP 89114986A EP 0359988 A2 EP0359988 A2 EP 0359988A2
Authority
EP
European Patent Office
Prior art keywords
sealing
joint
tape
band
swelling
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Withdrawn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
EP89114986A
Other languages
German (de)
English (en)
Other versions
EP0359988A3 (fr
Inventor
Christian Höper
Wolfgang Noack
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.)
Bilfinger Berger Industrial Services GmbH
Original Assignee
Rheinhold and Mahla AG
Rheinhold and Mahla GmbH
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 Rheinhold and Mahla AG, Rheinhold and Mahla GmbH filed Critical Rheinhold and Mahla AG
Publication of EP0359988A2 publication Critical patent/EP0359988A2/fr
Publication of EP0359988A3 publication Critical patent/EP0359988A3/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Withdrawn legal-status Critical Current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
    • 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 invention relates to sealing the joints of cover channels, in particular chemical product lines, which are composed of individual, shell-shaped channel sections abutting one another in the longitudinal direction and made of sheet metal walls filled with insulating material.
  • Such pipeline routes which often consist of several adjacent pipelines and can have a long length, must be insulated against the effects of temperature and protected against the effects of the weather, and it is often also intended to prevent leakages in these pipelines from free-flowing into the ambient air.
  • the pipeline route must therefore be surrounded by a tight insulation, which is expediently designed as a tunnel-shaped channel.
  • This channel is made up of individual, in the longitudinal direction abutting channel sections, which usually consist of semicircular, radially spaced sheet metal walls, which with insulating material, e.g. In-situ foamed polyurethane are filled.
  • the present invention is therefore based on the object of creating a seal of such spatially curved joints which meets all the requirements, i.e. which offers protection against the weather and adequate thermal insulation, which reliably prevents air exchange between the inside of the duct and the ambient air, and which nevertheless enables relative movements of the duct sections with respect to one another.
  • each joint is wedge-shaped, opening outwards, that the outer sheet of each channel section has an outwardly projecting bead in the area adjacent to the joint and that at least the area of the joint and the beads on both sides adjoining it an approximately large steel band is covered under pretension, between which and the outer channel wall an elastic sealing band is clamped.
  • each joint is securely and permanently sealed, with a high level of fatigue strength being provided in particular by the steel strips which are pre-stressed over the circumference of the outer channel wall.
  • the sealing tape consists of a swelling tape that rises when exposed to heat, which is expediently made of foam soaked with bitumen.
  • the swelling tape should be compressed to at least 30% of its expanded volume and installed in a thickness that is greater than the lateral folds of the U-shaped steel tape, so that there is always a gap between the folds and the outer wall of the duct.
  • the width of the built-in swelling band is less than the width of the steel band, so that the swelling band does not emerge laterally under the steel band even with high compression.
  • the sealing tape from an elastic rubber profile which is approximately rectangular in cross section.
  • the advantage of this configuration is that the steel strip can then be integrated into the rubber profile.
  • the steel strip is divided into multiple individual sections covering the joint circumference, which are connected to one another at the joints by means of tensioning screws.
  • the steel strip sections can be pre-bent according to the peripheral contour of the joint section to be covered.
  • a sealing tape in the form of a swelling tape can be used in the outer area of each joint for better sealing.
  • FIG. 1 shows a cross section through a pipeline route (1) for, for example, five adjacent pipelines (2) for chemical products.
  • the pipeline route (1) with the pipelines (2) is surrounded by a tunnel-like cover channel (3) which - as can be seen from the partial longitudinal section according to FIG. 2 - is composed of individual, axially abutting channel sections (4).
  • Each channel section (4) has an outer sheet (5) which is curved in accordance with the channel cross section and an inner sheet (6) which is concentrically disposed therewith.
  • the cavity between the outer sheet (5) and the inner sheet (6) is filled with an insulating material (8), which insulating material (8) can consist, for example, of in-situ foamed polyurethane.
  • the end face (7) is not perpendicular to the channel walls (5) and (6), but slightly inclined to them, so that there is a wedge-shaped opening (9). This means that two adjacent channel sections (4) only meet at the edge (10) of the inner circumference.
  • each outer sheet (5) has an outwardly projecting, curved bead (11) in the area adjacent to the end face (7).
  • a sealing tape (12) is provided over the width of the joint (9) and the two subsequent beads (11), the outside of which is made of an approximately U-shaped steel tape (13) with the horizontal section (14) and the two lateral folds (15) is covered.
  • the sealing tape (12) preferably consists of a so-called swelling tape, which is usually made of bitumen-soaked foam.
  • a swelling belt delivered in a compressed state, is subjected to heat after assembly, i.e. even at room temperature, and expands to about six times its compression volume.
  • the width of the sealing band (12) is less than the width of the steel band (14), so that there is always sufficient space on the side to prevent the swelling band (12) from opening laterally emerges under the folds (15) to the outside.
  • the steel band (13) is divided in the circumferential direction into correspondingly preformed sections (20, 21, 22 and 23), whereby the arched sections (21 and 22) can already be delivered preformed as curved sections.
  • the individual sections (20 to 23) are then connected to one another at the joints with tabs (25) projecting outwards by means of tensioning screws (26).
  • a defined pre-tension can then be applied to the sealing tape (12) and adjusted using these tensioning screws (26).
  • the steel band (30) has a slightly concave arched cross section in order to further increase the contact pressure on the sealing band (12) in the area of the beads (11) and to prevent moisture from entering the gap (9) from the outside. prevent even more safely.
  • FIG. 4 a cross-section through a sealing band (32) is shown in a further partial longitudinal section, which consists of an approximately rectangular rubber profile (33) into which the steel band (34) can be directly integrated.
  • a corrosion-resistant rubber profile it is sufficient if only a flat steel strip (34), for example by coextrusion, is combined with the rubber profile, the corresponding contact pressure on the rubber seal (33) then being achieved by the prestressing of the steel strip (34) described above.
  • an additional sealing of the joint (9) is possible by inserting a sealing strip (35) in the outer region of the joint (9), as is shown in FIG. 2.
  • the gas-tight joint seal also makes it possible to diagnose leaks within the cover channel by blowing air through the channel and this air at the end of the channel if any chemical leaks have occurred at possible leakages. A targeted leak search can then be carried out by walking on the canal.

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  • 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)
  • Gasket Seals (AREA)
  • Building Environments (AREA)
EP89114986A 1988-09-18 1989-08-13 Liaison jointoyée de deux parois courbes avec transition à une paroi rectiligne Withdrawn EP0359988A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19883831744 DE3831744A1 (de) 1988-09-18 1988-09-18 Abdichtung der fugen von abdeckkanaelen
DE3831744 1988-09-18

Publications (2)

Publication Number Publication Date
EP0359988A2 true EP0359988A2 (fr) 1990-03-28
EP0359988A3 EP0359988A3 (fr) 1990-06-13

Family

ID=6363221

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89114986A Withdrawn EP0359988A3 (fr) 1988-09-18 1989-08-13 Liaison jointoyée de deux parois courbes avec transition à une paroi rectiligne

Country Status (2)

Country Link
EP (1) EP0359988A3 (fr)
DE (1) DE3831744A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100591867C (zh) * 2008-07-23 2010-02-24 西安理工大学 地裂缝地层隧道变形缝防渗结构的构筑方法及防渗结构

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105972384B (zh) * 2016-06-22 2017-11-07 泰州阿法光电科技有限公司 一种简便的管道防护罩装置及其安装方法
CN105972387B (zh) * 2016-06-22 2017-11-07 江苏爱索新材料科技有限公司 一种防护性高的管道防护罩装置及其安装方法
CN105972385B (zh) * 2016-06-22 2017-11-07 江苏爱索新材料科技有限公司 一种方便拆装的管道防护罩装置及其安装方法
CN106437788B (zh) * 2016-11-16 2018-11-23 中铁二院工程集团有限责任公司 一种盾构隧道管片弹性密封垫主动压密装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1253153A (fr) * 1960-04-06 1961-02-03 Superwelds Lewisham Ltd Cheminée formée de deux tubes concentriques espacés
US3048427A (en) * 1958-06-04 1962-08-07 George A Mahoff Quick disconnect segmental tube coupling
DE1253746B (de) * 1964-07-29 1967-11-09 Theodor Kueppers Baugesellscha Auskleidung fuer Tunnel od. dgl. aus aneinandergereihten Tuebbingringen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3048427A (en) * 1958-06-04 1962-08-07 George A Mahoff Quick disconnect segmental tube coupling
FR1253153A (fr) * 1960-04-06 1961-02-03 Superwelds Lewisham Ltd Cheminée formée de deux tubes concentriques espacés
DE1253746B (de) * 1964-07-29 1967-11-09 Theodor Kueppers Baugesellscha Auskleidung fuer Tunnel od. dgl. aus aneinandergereihten Tuebbingringen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100591867C (zh) * 2008-07-23 2010-02-24 西安理工大学 地裂缝地层隧道变形缝防渗结构的构筑方法及防渗结构

Also Published As

Publication number Publication date
EP0359988A3 (fr) 1990-06-13
DE3831744A1 (de) 1990-03-22

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