EP1788157A2 - Paroi moulée et sa méthode de fabrication - Google Patents

Paroi moulée et sa méthode de fabrication Download PDF

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Publication number
EP1788157A2
EP1788157A2 EP06023807A EP06023807A EP1788157A2 EP 1788157 A2 EP1788157 A2 EP 1788157A2 EP 06023807 A EP06023807 A EP 06023807A EP 06023807 A EP06023807 A EP 06023807A EP 1788157 A2 EP1788157 A2 EP 1788157A2
Authority
EP
European Patent Office
Prior art keywords
wall
joint
concrete
slats
slot
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Withdrawn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
EP06023807A
Other languages
German (de)
English (en)
Other versions
EP1788157A3 (fr
Inventor
Willem Velthorst Herman
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.)
Velthorst Beheer BV
Original Assignee
Velthorst Beheer BV
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 Velthorst Beheer BV filed Critical Velthorst Beheer BV
Publication of EP1788157A2 publication Critical patent/EP1788157A2/fr
Publication of EP1788157A3 publication Critical patent/EP1788157A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/16—Arrangement or construction of joints in foundation structures
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/13—Foundation slots or slits; Implements for making these slots or slits
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/08—Members specially adapted to be used in prestressed constructions
    • E04C5/10—Ducts

Definitions

  • the invention relates to a diaphragm wall made of concrete or reinforced concrete and to a method for the production thereof.
  • Slotted walls made of concrete or reinforced concrete are produced in sections in the form of so-called lamellae according to the classic diaphragm wall construction method.
  • a Schlitzwandabschnltts by means of a Schlltzwandgreifers, optionally under support of the soil by a Stützfiüsstechnik, set as a formwork for this lamella in the direction of manufacture limiting concave joint surface a formwork element in the form of a joint pipe in the slot section.
  • the excavation of the Schlitzabschnitks for Folgelamelle then takes place after pulling the joint pipe.
  • tendons can either be firmly anchored at the bottom of the trench wall and at the top or formed in the form of U-shaped loops with hairpin-shaped reversal points at the bottom to clamp such a tendon at its two ends from the air side to be able to. Training and effectiveness of the joints between the individual slats are not affected by this.
  • the present invention seeks to provide a way to sustainably improve the tightness and possibly also the lateral force capacity of the joints between adjacent diaphragm wall slats.
  • Claim 4 relates to a device for forming a butt joint of cladding tubes forming ducts between each two adjacent slot wall slats and claim 9, a method for producing a slot wall according to the invention.
  • the basic idea of the invention is also to pretension a slot wall in the horizontal direction, specifically in such a way that the joints between adjacent slot wall lamellae are suppressed. If the tendons are arranged in U-shaped loops so that their horizontal sections intersect each slot wall joints, then not only the water-tightness of the over-stressed by the bias joints is substantially improved, but it is also the lateral force capacity of the joints increased, with the result that single loads can be distributed to several adjacent slats.
  • the wall thickness can be reduced, but above all, the density of the limp reinforcement can be reduced.
  • Phase 1 shows a section of a slot 1 to be produced in the field in a manner known per se, in which a starting lamella ST 1 is to be produced.
  • a thixotropic liquid such as a Bentonitschlämpe filled.
  • joint pipes 2 are then introduced in a second step, which limit the starting lamella ST l as such (phase 2).
  • the reinforcement for the starting lamella ST l is then introduced in a further step (phase 3).
  • the reinforcement is combined in total to form a reinforcement cage 3, in which the cladding tubes and sealing means are incorporated, which later form the tensioning channel 4.
  • the clamping channel 4 must connect tightly to the joint pipes 2.
  • the concrete 5 is introduced for the starting lamella ST i (phase 4).
  • the excavation for a final lamella SC 1 can take place between the two starting laths ST i and ST l + 1 .
  • a reinforcement cage 6 lowered, which in turn contains the sheaths and sealing elements for a horizontal chucking channel 7, in which case the sealing means of the clamping channel 7 act against the already installed sealing means of the clamping channels 4 of the adjacent starting lamellae ST i and ST i + 1 .
  • phase 9 shows the state after pulling the start blades ST l and ST l + 1 respectively outwardly bounding joint tubes 2 and phase 10 the area of the slot wall in the finished state.
  • Fig. 2 is a detail of .A vertical section through the bottom and shows a view of the slot wall 7 in the left representation a, in the upper representation b a corresponding cross section through the slot wall to Germanize the sections and in the right representation c is a cross section through the slot wall 7.
  • a plurality of Home slats ST i and ST i + 1 and closing slats SC i existing slot wall 7 extending from the ground surface 8 a U-shape in the depth reaching chip channels 4a, 4b, 4c are installed, in the after completion of the wall tendons, especially in the form of steel wire strands can be introduced, which can then be stretched from the terrain surface 8 and anchored in anchors 9.
  • Fig. 3 shows the production of the Stertlamalle ST i , in the state of the phase 3 in Fig. 1.
  • a reinforcement cage 3 is lowered into the slot 1 produced in the ground in the demarcated by joint pipes 2 area.
  • the Reinforcing cage 3 consists in a conventional manner of longitudinal and transverse bars.
  • each of these sealing cassettes 13 consists of a conveniently square base plate 14 made of steel with a central opening 15 for the clamping channel 4.
  • the clamping channel 4 is in the adjoining the sealing cassette area of a trumpet-like extension 16 of the normal cross section of the cladding tubes.
  • annular cavity 19 is formed by an inner and an outer mold ring 17,18, in which a sealing tube 20 is inserted.
  • the sealing tube 20 can be expanded by a valve 21 by pressing a medium; trapped air can escape through a vent valve 22.
  • the sealing cassettes 13 are installed in the reinforcement cage 3 in such a way that the sealing tubes 20 seal in the expanded state in each case against the outer wall of the joint tubes 2.
  • a hardening medium such as cement mortar, is expediently used in order to avoid any escape of the medium at defects that could result in the installation of the reinforcing cage 3 in the depth of the slot 1.
  • Spacers 23 secure the distance to the wall of the excavated slot 1.
  • sheaths 24 for the vertical branches of the clamping channels 4a, 4b, 4c, and a tube 25 for introducing the concrete for the relevant Schlitzwandiamelle.
  • Fig. 4 shows in a similar representation as in Fig. 3, the construction phase 7 of the illustration of FIG. 1.
  • the joint pipes 2 limit here the portion of the slot 1, in which the final lamella SC l is to produce.
  • the reinforcing cage 3a is through.
  • Spacer 23 is supported against the walls of the section SC l .
  • At the ends of the adjacent starting sections ST l and ST l + 1 concave, turned off by the surface of the joint pipes joint surfaces 27 are formed, to which the sealing tubes 20 of the sealing cassettes 13 adjacent to the start sections.
  • the seal cartridges 13 are installed in the reinforcing cage 3a in such a way that they abut in the expanded condition against the seal tubes 20 into the joint surfaces 27, so that also here a sealed joint of the clamping channel 4 in the region of the produced circuit portion SC l with the areas of the clamping channel 4 in the adjacent lamellae.
  • the invention which has been described above by the example of the overstretching of vertical joints between individual diaphragm wall slats, can in principle also be used if a horizontal slab wall is followed by a horizontal concrete slab, for example a floor slab for a building. Two embodiments of such connections are indicated in FIGS. 7 and 8.
  • a concrete floor slab 31 which for example rests on a layer 32 of underwater concrete, stretches.
  • clamping channels 33 which are deflected at the height of the concrete floor slab 31 by 90 ° and continue in horizontal channels 34.
  • the ducts for the chutes have similarly collided with sealing cassettes 13 as described in connection with Figs. 3-6. In this way it is possible to tension U-shaped tendons from the air-side anchorages 9.
  • the clamping channels 33a, 34a are not U-shaped, but only L-shaped up to, for example, fixed anchors 9a at the top of the concrete floor plate 31. Again, in the clamping channels 33a, 34a extending tendons of the air-side anchors 9 are stretched out.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Environmental & Geological Engineering (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
EP20060023807 2005-11-19 2006-11-16 Paroi moulée et sa méthode de fabrication Withdrawn EP1788157A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200510055254 DE102005055254A1 (de) 2005-11-19 2005-11-19 Schlitzwand sowie Verfahren zu deren Herstellung

Publications (2)

Publication Number Publication Date
EP1788157A2 true EP1788157A2 (fr) 2007-05-23
EP1788157A3 EP1788157A3 (fr) 2009-03-11

Family

ID=37770839

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20060023807 Withdrawn EP1788157A3 (fr) 2005-11-19 2006-11-16 Paroi moulée et sa méthode de fabrication

Country Status (2)

Country Link
EP (1) EP1788157A3 (fr)
DE (1) DE102005055254A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1964981A1 (fr) * 2007-02-28 2008-09-03 Etienne Heirwegh Éléments de renforcement pour murs coulés sur site et procédé d'excavation murs coulés sur site
EP2549021A1 (fr) * 2011-07-18 2013-01-23 Bauer Spezialtiefbau GmbH Centrale d'accumulation par pompage et son procédé de fabrication
US9371623B2 (en) 2011-07-14 2016-06-21 Ccmj Systems Ltd Diaphragm wall apparatus and methods
CN111021386A (zh) * 2020-01-02 2020-04-17 北京高能时代环境技术股份有限公司 一种hdpe土工膜复合防渗墙施工过程中的封挡结构
CN111827330A (zh) * 2020-08-13 2020-10-27 上海智平基础工程有限公司 一种异形接头管
US10988911B2 (en) 2017-04-26 2021-04-27 Ccmj Systems Ltd Diaphragm walls
US11225769B2 (en) 2018-02-15 2022-01-18 Ccmj Systems Ltd Shear key former apparatus and method(s)
CN115198701A (zh) * 2022-09-01 2022-10-18 江西省水利科学院 装配式渡槽湿接缝连接结构

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013205765B4 (de) 2013-04-02 2021-06-02 Gud Geotechnik Und Dynamik Consult Gmbh Qualitätssicherungssystem für Schlitzwandfugen
DE202014101066U1 (de) * 2014-02-28 2014-04-28 Brühler Stahlhandel Gmbh Abstandhalter für einen Bewehrungskorb

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59150818A (ja) * 1983-02-14 1984-08-29 Ohbayashigumi Ltd 地中連続壁のパネル間接合工法
JPS62153417A (ja) * 1985-12-25 1987-07-08 Okumura Constr Co Ltd 連続地中壁用鉄筋籠
JPS63261012A (ja) * 1987-04-17 1988-10-27 Ohbayashigumi Ltd 地中連続壁の接合部の施工法
JPH0493412A (ja) * 1990-08-09 1992-03-26 Taisei Corp 分割構造体の一体接合方法
JPH10102488A (ja) * 1996-10-01 1998-04-21 Ohbayashi Corp 地中連続壁のプレストレス導入方法

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1964981A1 (fr) * 2007-02-28 2008-09-03 Etienne Heirwegh Éléments de renforcement pour murs coulés sur site et procédé d'excavation murs coulés sur site
US9371623B2 (en) 2011-07-14 2016-06-21 Ccmj Systems Ltd Diaphragm wall apparatus and methods
EP2549021A1 (fr) * 2011-07-18 2013-01-23 Bauer Spezialtiefbau GmbH Centrale d'accumulation par pompage et son procédé de fabrication
US10988911B2 (en) 2017-04-26 2021-04-27 Ccmj Systems Ltd Diaphragm walls
US11225769B2 (en) 2018-02-15 2022-01-18 Ccmj Systems Ltd Shear key former apparatus and method(s)
CN111021386A (zh) * 2020-01-02 2020-04-17 北京高能时代环境技术股份有限公司 一种hdpe土工膜复合防渗墙施工过程中的封挡结构
CN111827330A (zh) * 2020-08-13 2020-10-27 上海智平基础工程有限公司 一种异形接头管
CN115198701A (zh) * 2022-09-01 2022-10-18 江西省水利科学院 装配式渡槽湿接缝连接结构

Also Published As

Publication number Publication date
DE102005055254A1 (de) 2007-05-24
EP1788157A3 (fr) 2009-03-11

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