EP1835126A1 - Méthode et dispositif d'étanchement pour des tuyaux de fonçage - Google Patents

Méthode et dispositif d'étanchement pour des tuyaux de fonçage Download PDF

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Publication number
EP1835126A1
EP1835126A1 EP06111247A EP06111247A EP1835126A1 EP 1835126 A1 EP1835126 A1 EP 1835126A1 EP 06111247 A EP06111247 A EP 06111247A EP 06111247 A EP06111247 A EP 06111247A EP 1835126 A1 EP1835126 A1 EP 1835126A1
Authority
EP
European Patent Office
Prior art keywords
sealing
injection material
elements
hydraulic joint
sealing element
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Withdrawn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
EP06111247A
Other languages
German (de)
English (en)
Inventor
Stefan Trümpi
Thomas Freuler
Michael Leahey
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.)
Jackcontrol AG
Original Assignee
Jackcontrol AG
Sika Technology 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
Application filed by Jackcontrol AG, Sika Technology AG filed Critical Jackcontrol AG
Priority to EP06111247A priority Critical patent/EP1835126A1/fr
Publication of EP1835126A1 publication Critical patent/EP1835126A1/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Withdrawn legal-status Critical Current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
    • 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
    • E21D11/386—Sealing means positioned between adjacent lining members inflatable sealing means
    • 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

Definitions

  • the invention relates to a sealing device of propulsion elements according to the preamble of the first claim.
  • the invention is also based on a method for sealing propulsion elements according to the preamble of the independent method claim and of a number of propulsion elements with a sealing device.
  • the propulsion elements have a diameter of up to several meters, a pipe string of propulsion elements, for example, 1 to 4 m in diameter can reach a length of 1 to 2 km or more.
  • a pipe string of propulsion elements for example, 1 to 4 m in diameter can reach a length of 1 to 2 km or more.
  • the head of the pipe string can be removed and added the necessary termination devices and lines.
  • the required pre-pressing forces increase as a result of the skin friction of the propulsion elements.
  • intermediate pressing stations or intermediate shafts can be created for other pressing devices, with which the range can be increased accordingly.
  • the removed from the conveyor head earth material must be dissipated in the opposite direction to the usually approximately horizontal pipe jacking, this can be done in a conventional manner with conveyor belts, rubble cars or the like. Further If the soil is suitable, it is possible to convey small streams in closed pipes.
  • a method for propulsion of propulsion elements is known.
  • the deformation is measured, the driving force and the eccentricity are calculated from these parameters, and the values are stored and / or compared with stored standard values.
  • the driving force and the eccentricity are calculated from these parameters, and the values are stored and / or compared with stored standard values.
  • the driving force and the eccentricity are converted the values into control commands for the pressing direction and / or the individual fluid supply to the individual fluid drain from the expansion elements .
  • the invention has for its object to improve the sealing between the propulsion elements in a sealing device of propulsion elements, methods for sealing propulsion elements, as well as series of propulsion elements with a sealing device of the type mentioned.
  • the core of the invention is thus that the hydraulic joint comprises at least one expansion element, and that the hydraulic joint seals the propulsion elements with each other.
  • the advantages of the invention can be seen in the fact that a secure and simple sealing of the driving elements can take place with one another by means of the hydraulic joint.
  • the elements for introducing injection material can be emptied again after introduction of the injection material. This will allow you to create new ones later To inject grout according to requirements. As a result, it can be ensured at all times that the row of driving elements is securely sealed.
  • a series of propulsion elements 14, here also called a pipe string are propelled, which extends below the earth surface 16.
  • the individual driving elements 18 are lowered by means of a lifting device 20 in the press shaft 12.
  • An abutment 22 supporting pressing device 24 is aligned with the tubing string 14.
  • a pressure ring 26 presses the front side of the rearmost tubular element 18 and presses the entire pipe string 14 in the feed direction 28 by the length of a tubular element 18 forward.
  • the pressure ring 26 is withdrawn, lowered a new tube member 18 and attached with the interposition of an expansion element 44. Then the insertion takes place by a further tube length I.
  • the displaced soil is reduced by a head piece 30 in a conventional manner. This is done for example by a built-in excavator 32, a milling machine or other well-known in mining or tunnel work equipment. With a treadmill, not shown, the excavated soil 34 in the direction of the press shaft 24, that is opposite to the propulsion direction 28, promoted. The propulsion takes place as mentioned step by step.
  • One step involves the insertion of a tubular element 18, the advancement of the tubing string 14 by the length I of the tubular element 18 in the advancing direction 28.
  • the advancing force 40 is transmitted from tube element to tube element 18 via the expansion elements 44 (FIG. 2) shown below.
  • the headpiece 30 usually has a locating device 36, so the situation can be determined at any time and any necessary corrections are made.
  • Next can be precisely excavated at a possibly necessary repair or replacement of the head piece 30, an auxiliary shaft.
  • the expansion element 44 is formed of an elastomeric tubular.
  • the circulating hose has no division into sections. The pressure is, therefore, except for the geodetic pressure difference, always the same around, even with the largest pressure application.
  • All cavities of the expansion elements 44 over the entire pipe string 14 may be connected via a pressure line 56.
  • This pressure line 56 is connected via a filling cock 58 with the fitting 60 of each connected expansion element 44.
  • the filler cock 58 can be opened.
  • the Armature 60 is also equipped with a pressure gauge 64 and a vent cock 66 through which excess fluid can be discharged into the interior of the tubing string 14. After laying the pipe string, the expansion element 44, ie the hydraulic joint assumes the sealing function.
  • the sealing element has, for example, slots through which the injection material can emerge under the application of pressure. If pressure is applied externally to the hose, these exit slots are closed and fluids can not enter the hose.
  • Such injection hoses are known, for example, from Sika® under the name Injectoflex or from other manufacturers than Predimax®. Such hoses can also have an additional outer skin.
  • the hose has a filling opening 3 and a vent 4. The injection material is introduced into the hose via the filling opening, the vent opening is closed and, via the slots in the hose, it exits under pressure. If a further injection of injection material to be made possible, the vent 4 is opened and the tube 2 emptied, then both openings 3 and 4 are closed. Should now again expect a leak, can be introduced via the tube new injection material, and thus re-sealed.
  • an expansion element 44 is thus recognized, but in addition a sealing element 2.
  • the expansion element 44 next to the outer sleeve seal 48 take over the seal .
  • injection material is introduced into the cavities at the connection point of the pipes via the sealing element 2 and so further sealed. This second step can be done from the beginning, but the additional sealing can be done later as needed.
  • FIG. 3 and 4 another embodiment of an expansion element 44 is shown, which is formed here in a spiral shape.
  • the sealing element 2 is inserted between the turns of the expansion element 44. Again, then the sealing element 2 can be filled via the filling opening 3 and the vent 4, respectively emptied.
  • the function is the same as described above in FIG. 2. 4, the connection region of the two propulsion elements 18 is still shown, which is covered with a sleeve 48, which has a guiding and temporary sealing function.
  • the sealing function can be supported by an O- or wedge ring, not shown, whereby the seal is further improved.
  • FIG. 5 another possibility for sealing is shown.
  • the critical point for the tightness is in the region of the connections of the expansion elements 60.
  • an opening element 6 is now arranged in the tubular element 18, via which the injection material can be introduced into this area.
  • This opening element is advantageously designed so that the injection material can be introduced under pressure in this area.
  • the opening element 6 can also be provided with a thread, so that the opening of the opening element can be closed with a screw element or equivalent parts.
  • a so-called packer is advantageously introduced into the opening element.
  • the packer has on the outside an expandable sleeve, which serves to seal the opening element 6. Inside, it has a continuous tube, via which the injection material can be brought under pressure to the desired location. After introduction of the injection material, the packer can be removed and, if desired, the opening 6 are closed, for example via a screw element.
  • a packer is used, but it is also possible to use directly an injection tube as described above or other injection means.
  • the expansion element 44 together with the sleeve 48 can take over the seal.
  • the fluid present in the expansion element is possible to use the fluid present in the expansion element.
  • injection material is introduced into the recess 50 and from there also into the cavities on the hydraulic joint of the tubes 18 via the opening element and the packer, and so further sealed. This second step can be done from the beginning, but the additional sealing can be done later as needed.
  • FIG. 6 a further possibility for the seal is shown.
  • the pipe element in comparison to FIG. 5 additionally has a venting element 9.
  • This venting element can analogously Opening element 6 be configured.
  • the backfilling of the recess 50 can be checked.
  • the cross sections of the drive elements 18 may be formed, for example, round, square, rectangular, rectangular with a transverse wall or arched.
  • the elements have a diameter or a corresponding linear mass of one or more meters. They consist for example of concrete, fiber concrete or a metal.
  • the cross sections of the expansion elements 44 are, for example, circular, square, elliptical, long rectangular rounded, cassette-shaped and convex on both sides, spiral, etc. formed. There are a large variety of cross sections, the walls can be partially reinforced.
  • any materials can be used which have a sealing property.
  • swellable sealing materials are suitable for this purpose.
  • Swellable polyurethane gels have proved to be particularly advantageous.
  • other materials such as acrylate gels, latex swellable materials, epoxy resins, etc. may also be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
EP06111247A 2006-03-16 2006-03-16 Méthode et dispositif d'étanchement pour des tuyaux de fonçage Withdrawn EP1835126A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06111247A EP1835126A1 (fr) 2006-03-16 2006-03-16 Méthode et dispositif d'étanchement pour des tuyaux de fonçage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06111247A EP1835126A1 (fr) 2006-03-16 2006-03-16 Méthode et dispositif d'étanchement pour des tuyaux de fonçage

Publications (1)

Publication Number Publication Date
EP1835126A1 true EP1835126A1 (fr) 2007-09-19

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EP06111247A Withdrawn EP1835126A1 (fr) 2006-03-16 2006-03-16 Méthode et dispositif d'étanchement pour des tuyaux de fonçage

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EP (1) EP1835126A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH709476A1 (de) * 2014-04-07 2015-10-15 Stefan Trümpi Verfahren zum Dichten von Fugen beim Pressrohrvortrieb.

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2333826A (en) * 1940-08-30 1943-11-09 Camilla W Paul Grout expanding elastic seal
US3005314A (en) * 1958-01-10 1961-10-24 Wesley B Cunningham Method and apparatus for forming tunnels or other underground conduit installations
CH574023A5 (en) 1973-07-24 1976-03-31 Schmitter Adolf Junction seal for channels or conduits - has ring expansion member anchored to one channel inflated to force ends apart
EP0328734A2 (fr) * 1988-02-18 1989-08-23 Hüls Troisdorf Aktiengesellschaft Procédé d'étanchéification dans la région d'un fâite d'une jointure
EP0340658A2 (fr) * 1988-05-04 1989-11-08 Phoenix Aktiengesellschaft Joint d'éntanchéité qui peut-être activé pour tuyaux à pousser en avant
WO2001090626A1 (fr) * 2000-05-24 2001-11-29 Rg Rohrgruppe Gmbh & Co. Kg Systeme d'etancheite pour tubes-guides
WO2005080753A1 (fr) 2004-02-19 2005-09-01 Truempi Stefan Avancement d'elements tubulaires dans un terrain

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2333826A (en) * 1940-08-30 1943-11-09 Camilla W Paul Grout expanding elastic seal
US3005314A (en) * 1958-01-10 1961-10-24 Wesley B Cunningham Method and apparatus for forming tunnels or other underground conduit installations
CH574023A5 (en) 1973-07-24 1976-03-31 Schmitter Adolf Junction seal for channels or conduits - has ring expansion member anchored to one channel inflated to force ends apart
EP0328734A2 (fr) * 1988-02-18 1989-08-23 Hüls Troisdorf Aktiengesellschaft Procédé d'étanchéification dans la région d'un fâite d'une jointure
EP0340658A2 (fr) * 1988-05-04 1989-11-08 Phoenix Aktiengesellschaft Joint d'éntanchéité qui peut-être activé pour tuyaux à pousser en avant
WO2001090626A1 (fr) * 2000-05-24 2001-11-29 Rg Rohrgruppe Gmbh & Co. Kg Systeme d'etancheite pour tubes-guides
WO2005080753A1 (fr) 2004-02-19 2005-09-01 Truempi Stefan Avancement d'elements tubulaires dans un terrain

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH709476A1 (de) * 2014-04-07 2015-10-15 Stefan Trümpi Verfahren zum Dichten von Fugen beim Pressrohrvortrieb.

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