EP0833987A1 - Paroi moulee a armature continue, procede de realisation d'une telle paroi et coffrage pour realiser cette paroi - Google Patents
Paroi moulee a armature continue, procede de realisation d'une telle paroi et coffrage pour realiser cette paroiInfo
- Publication number
- EP0833987A1 EP0833987A1 EP97920797A EP97920797A EP0833987A1 EP 0833987 A1 EP0833987 A1 EP 0833987A1 EP 97920797 A EP97920797 A EP 97920797A EP 97920797 A EP97920797 A EP 97920797A EP 0833987 A1 EP0833987 A1 EP 0833987A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wall
- trench
- formwork
- section
- binder
- 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.)
- Granted
Links
- 238000009415 formwork Methods 0.000 title claims description 38
- 238000000034 method Methods 0.000 title claims description 5
- 238000010276 construction Methods 0.000 title 1
- 238000004873 anchoring Methods 0.000 claims abstract description 23
- 239000011230 binding agent Substances 0.000 claims abstract description 23
- 230000002787 reinforcement Effects 0.000 claims abstract description 23
- 238000005266 casting Methods 0.000 claims abstract 2
- 235000000396 iron Nutrition 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 5
- 206010013647 Drowning Diseases 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 229910052742 iron Inorganic materials 0.000 claims 1
- 239000011440 grout Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000005571 horizontal transmission Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/18—Bulkheads or similar walls made solely of concrete in situ
- E02D5/182—Bulkheads or similar walls made solely of concrete in situ using formworks to separate sections
Definitions
- the present invention relates to a molded wall with continuous reinforcement, a method for producing such a wall molded in the ground, and a formwork for producing such a molded wall.
- the diaphragm walls are works that are made in the ground by digging a trench and filling this trench with a binder, namely in general concrete, which sets in situ.
- the trench can be dug under a mud which is then replaced by the binder.
- the binder To obtain good continuity of the diaphragm wall, the binder must be poured all at once over the entire height of the trench. To this end, the molded wall is produced by successive contiguous panels.
- Each panel is obtained by pouring the binder in a section of trench dug in the extension of a solidified panel previously produced.
- the panels are connected two by two by mutual embedding of their lateral ends, the shape of which is delimited by a formwork, also designated end joint, extending transversely to the trench over the entire depth of the latter and put in place before to pour the binder.
- a diaphragm wall is reinforced by reinforcements which are put in place in each section of trench before pouring the binder.
- a first object of the invention is to provide a diaphragm wall constituted by several juxtaposed panels which in particular makes it possible to obtain a good distribution of the forces applied to the frames of the various panels and which is of an improved implementation.
- the diaphragm wall constituted by a succession of panels joined by their lateral ends and produced by pouring a binder in sections of contiguous trenches dug into the ground in the extension of one of the 'other, each panel having a frame, said wall further comprising connecting means between the frames of two adjoining panels is characterized in that the connecting means are separate from said frames and comprise an anchoring element having a first end provided with at least a first vertical locking element and a second end nested in one of said panels, and a connecting element having a first end provided with at least a second locking element capable of cooperating with the first locking element and a second end nested in the other of said panels.
- Another object of the invention is to provide a process for producing a diaphragm wall, in particular of the type defined above, and which does not have the drawbacks of the prior art.
- the method for producing in the ground a diaphragm wall in particular as defined above is to achieve this object.
- a first section of trench is produced in which an end formwork is placed and a binder is poured in order to obtain a first wall panel, then a second section of trench adjoining the first is produced on the side of the formwork in the extension thereof, the formwork is removed and a binder is poured into the second section of trench to obtain a second wall panel attached to the first, is characterized in that before pouring the binder into the first section of trench, there is put in place a frame and a connecting element comprising locking ends which are positioned in the immediate vicinity of the formwork and which, during its pouring, prevents the binder from drowning said ends of fixing so that it protrudes from the first wall panel in the second section of trench after removal of the formwork and that before pouring the binder in the second section of trench, one puts there in place a frame and an anchoring element which is secured to the locking ends of the connecting element and that the formwork is secured to the connecting element before it is put into place in the section of trench, the connecting and anchoring elements not being directly
- the formwork for producing a diaphragm wall of the type defined above intended to be placed against an end wall of a section of trench dug into the ground to obtain a wall panel by pouring a binder into this section of trench said formwork comprising a bearing face against the end wall of the section of trench and, opposite this bearing face, a face of molding directed towards the inside of the trench section is characterized by the fact that it comprises, on its molding face at least one recess capable of receiving the locking element of a connecting element placed in the section of trench, each recess being closed by a vertical wall element provided with a vertical slot capable of letting through the sheet pile element provided with the locking element sealing between said sheet pile element and the wall of said recess .
- FIG. 7 and 8 show in top view and in elevational view a preferred embodiment of a frame of a panel and an anchoring element
- FIG. 10 shows in vertical section a preferred embodiment of the formwork in the case where there is a single lock; - Figure 11 is a detail view of Figure 10; and
- FIG 1 there is shown the digging of a section of trench 20 in the soil under mud using an appropriate device, for example a bucket.
- the connecting element 24 which will be described in more detail later, is nested in the frame 22 but is not welded to it. By nesting, it should be understood that a part of the connecting element penetrates inside the cage which constitutes the frame.
- the connecting element 24 ends in two locks 28 and 30 which are arranged in two housings 32 and 34 of the formwork element 26. These recesses are closed by means which will be described later. The purpose of these means is to prevent, when the binder is poured (concrete or grout), that this material does not coat the locks.
- these means temporarily join the connecting element 24 and the formwork element 26.
- the concrete or grout is poured into the trench 20 to make a panel 36.
- the panel is reinforced by the frame 22.
- it provides the mechanical connection between the frame 22 and the connecting element 24 which are embedded in the concrete.
- the locks 30 and 32 remain free.
- the formwork element 26 has a general U-shape in horizontal section so that the panel 36, after removal of the formwork, the end 38 of the panel has a form of embedding of the following panel. .
- the locks 28 and 30 protrude in the form 38 of embedding.
- a second section of trench 40 is dug in which the second panel of the diaphragm wall is produced.
- a metal reinforcement 42 and an anchoring element 44 are put in place simultaneously, the anchoring element 44 being nested in the reinforcement 42 but not welded in the latter.
- the locks 46 and 48 thereof are engaged in the locks 28 and 30 of the connecting element 24 of the panel 36 already produced. This engagement of the locks with one another is greatly facilitated by the fact that the anchoring element 44 is not fixed to the frame 42, the anchoring element can be moved horizontally relative to the frame around the plane vertical median of the reinforcement.
- the concrete or the grout is poured into the trench section 40 to produce the second panel 50 of the diaphragm wall.
- the frame 22 is usually formed by a cage formed by horizontal concrete bars 52 and vertical concrete bars 54 welded together.
- the connecting element 24 (or the anchoring element 44) consists of round U-shaped irons referenced 56.
- the irons 56 (56a, 56b, 56c) are arranged in regularly spaced horizontal shots. For example, for a frame 12 meters high, the irons 56 are spaced 66 centimeters apart.
- the free ends 58 and 60 of the arms of the irons 56 are respectively welded to sheet pile elements 62 and 64 which end in the locks 28 and 30 (or 46 and 48).
- horizontal flat bars 66 can be welded at regular intervals between the sheet piles 62 and 64.
- connecting or anchoring elements are essentially constituted by round irons in the shape of horizontal U joined together by the sheet piles.
- the U-shaped irons are nested in the irons forming the reinforcements but not integral with them.
- connecting or anchoring elements were constituted differently. It is important, however, that they are essentially constituted by horizontal concrete irons in order to favor the horizontal transmission of the forces likely to be applied to the panels and therefore to their frames.
- the locking elements of the anchoring elements and of the connecting elements could be constituted by bodies other than locks of the sheet pile type. It suffices that they constitute male and female locking members capable of cooperating with each other when a reinforcement is placed in a section of trench.
- FIG. 9 shows a top view of the locking of a connecting element 24 and an anchoring element 44, the concrete not having been shown to facilitate understanding.
- FIG. 7 also shows the formwork element
- FIG 10 there is shown a formwork element 26 'in the case where the connecting element 24' has only one lock 28.
- the formwork 26 'proper is provided on its molding face
- the housing 70 of two metal parts 72 and 74 which define between them a housing or recess 76 having an opening 78.
- the housing 76 has dimensions sufficient to receive the lock 28 disposed at the end of the vertical sheet pile element 80.
- the opening 78 is closed by two rigid wall portions 82 and 84 which leave between them a slot 86 whose width is slightly greater than the thickness of the sheet pile 80, the wall portions 82 and 84 being fixed on parts 72 and 74
- the slot 86 is closed off by flexible sealing lips 88 and 90 fixed to the walls 82 and 84. These lips 88 and 90 are supported by elastic deformation on the faces of the sheet pile 80 thus ensuring the seal against - screw of the binder.
- the rigid walls 82 and 84 provide horizontal positioning of the connecting element 24 and a temporary attachment of the formwork 26 to the element 24.
- These flexible pipes can, moreover, be used to carry out a circulation of water to "clean" the locks, after the pouring of the grout or concrete if a small quantity of this product has happened to enter the housing.
- Figures 12 and 13 show alternative embodiments of the means for sealing the housing or the housings in the formwork elements.
- the locks 28 and 30 are protected in the housings 32 and 34 by rubber covers 100 and 102.
- the locks 28 and 30 are protected by split tubes 104 and 106 which are threaded on the locks. Even if after removing the formwork 26, a envelope by binding around the tubes 104, 106 these envelopes are easily destroyed by the establishment of the locks of the anchoring element of the next panel.
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
- Finishing Walls (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9604947 | 1996-04-19 | ||
FR9604947A FR2747703B1 (fr) | 1996-04-19 | 1996-04-19 | Paroi moulee a armature continue, procede de realisation d'une telle paroi moulee dans le sol et coffrage pour realiser une telle paroi moulee |
PCT/FR1997/000715 WO1997040233A1 (fr) | 1996-04-19 | 1997-04-21 | Paroi moulee a armature continue, procede de realisation d'une telle paroi et coffrage pour realiser cette paroi |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0833987A1 true EP0833987A1 (fr) | 1998-04-08 |
EP0833987B1 EP0833987B1 (fr) | 2001-01-24 |
Family
ID=9491388
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97920797A Expired - Lifetime EP0833987B1 (fr) | 1996-04-19 | 1997-04-21 | Paroi moulee a armature continue, procede de realisation d'une telle paroi et coffrage pour realiser cette paroi |
Country Status (7)
Country | Link |
---|---|
US (1) | US6052963A (fr) |
EP (1) | EP0833987B1 (fr) |
JP (1) | JP3914576B2 (fr) |
DE (1) | DE69703959T2 (fr) |
ES (1) | ES2154901T3 (fr) |
FR (1) | FR2747703B1 (fr) |
WO (1) | WO1997040233A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10724199B2 (en) | 2015-10-06 | 2020-07-28 | Soletanche Freyssinet | Wharf constituted by arched walls and plane ties |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040226259A1 (en) | 2004-07-15 | 2004-11-18 | Thermoformed Block Corp. | System for the placement of modular fill material forming co-joined assemblies |
FR2893043B1 (fr) * | 2005-11-09 | 2009-12-18 | Cie Du Sol | Structure portuaire et procede de construction d'une telle structure |
GB201112136D0 (en) | 2011-07-14 | 2011-08-31 | Coupland John W | Diaphragm wall apparatus and methods |
EP2647765B1 (fr) * | 2012-04-03 | 2016-04-27 | BAUER Spezialtiefbau GmbH | Élément de coffrage pour une paroi moulée et procédé de fabrication de cette paroi |
CN105133621B (zh) * | 2015-08-27 | 2017-10-31 | 中铁第四勘察设计院集团有限公司 | 基坑围护系统的施工方法及基坑围护系统 |
JP6692175B2 (ja) * | 2016-02-16 | 2020-05-13 | 大成建設株式会社 | 先行エレメントの端部構造および地中連続壁の施工方法 |
GB201706643D0 (en) | 2017-04-26 | 2017-06-07 | Ccmj Systems Ltd | Diaphragm walls |
GB2571097B (en) | 2018-02-15 | 2021-08-25 | Ccmj Systems Ltd | Shear key former apparatus and method(s) |
FR3083250B1 (fr) * | 2018-06-27 | 2020-09-18 | Soletanche Freyssinet | Element de coffrage muni de profiles sacrificiels |
CN111172991B (zh) * | 2019-11-11 | 2021-09-10 | 浙江省建筑设计研究院 | 预埋钢筋套筒式预制地下连续墙 |
KR102510481B1 (ko) * | 2021-02-05 | 2023-03-16 | 주식회사 한빛구조이엔지 | 슬러리월 연결구조 및 이를 이용한 슬러리월 시공방법 |
CN114411695B (zh) * | 2022-01-24 | 2024-08-23 | 梁军 | 地下式现浇连续墙施工方法及其连接结构 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1193033A (en) * | 1916-08-01 | llewellyn | ||
US2192509A (en) * | 1937-04-12 | 1940-03-05 | Herman N Simpson | Interlocking pile construction |
US3465532A (en) * | 1967-12-29 | 1969-09-09 | Robertson L Belden | Concrete pile and joint |
GB1396877A (fr) * | 1971-07-29 | 1975-06-11 | ||
FR2148706A5 (fr) * | 1971-07-30 | 1973-03-23 | Sif Entreprise Bachy | |
AU510165B2 (en) * | 1977-01-07 | 1980-06-12 | Takenaka Komonen Co. Ltd - | Reinforced concrete structure |
FR2473085A1 (fr) * | 1980-01-08 | 1981-07-10 | Sif Entreprise Bachy | Procede pour assurer la continuite des armatures entre des panneaux successifs d'une paroi en beton arme, et panier d'armatures pour la mise en oeuvre de ce procede |
NL8001637A (nl) * | 1980-03-19 | 1981-10-16 | Haitsma Bouwindustrie H B I B | Betonnen wandelement waarvan twee of meer combineerbaar zijn tot een betonnen wand. |
FR2506362A1 (fr) * | 1981-05-22 | 1982-11-26 | Sif Entreprise Bachy | Procede pour assurer la continuite mecanique entre deux panneaux adjacents d'une paroi en beton arme moulee dans le sol |
US4728226A (en) * | 1984-04-10 | 1988-03-01 | Finic, B.V. | Method and apparatus for forming reinforced concrete walls with continuous steel reinforcement |
US4582453A (en) * | 1984-08-16 | 1986-04-15 | Finic, B.V. | Method and apparatus for in situ forming underground panelized concrete walls with improved joint structure |
NL8901669A (nl) * | 1989-06-30 | 1991-01-16 | Verstraeten Funderingstech Bv | Werkwijze ter vervaardiging van een vloeistof-dichte wand in de grond en aldus vervaardigde wand. |
EP0580926A1 (fr) * | 1992-07-31 | 1994-02-02 | ING. GIOVANNI RODIO & C. IMPRESA COSTRUZIONI SPECIALI S.P.A. | Joint d'étanchéité pour parois moulées dans le sol et procédé pour la construction de telles parois |
-
1996
- 1996-04-19 FR FR9604947A patent/FR2747703B1/fr not_active Expired - Fee Related
-
1997
- 1997-04-21 DE DE69703959T patent/DE69703959T2/de not_active Expired - Fee Related
- 1997-04-21 US US08/981,546 patent/US6052963A/en not_active Expired - Fee Related
- 1997-04-21 WO PCT/FR1997/000715 patent/WO1997040233A1/fr active IP Right Grant
- 1997-04-21 ES ES97920797T patent/ES2154901T3/es not_active Expired - Lifetime
- 1997-04-21 EP EP97920797A patent/EP0833987B1/fr not_active Expired - Lifetime
- 1997-04-21 JP JP53778597A patent/JP3914576B2/ja not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO9740233A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10724199B2 (en) | 2015-10-06 | 2020-07-28 | Soletanche Freyssinet | Wharf constituted by arched walls and plane ties |
Also Published As
Publication number | Publication date |
---|---|
FR2747703B1 (fr) | 1999-05-07 |
DE69703959T2 (de) | 2001-05-23 |
ES2154901T3 (es) | 2001-04-16 |
WO1997040233A1 (fr) | 1997-10-30 |
JP3914576B2 (ja) | 2007-05-16 |
DE69703959D1 (de) | 2001-03-01 |
FR2747703A1 (fr) | 1997-10-24 |
JPH11508341A (ja) | 1999-07-21 |
EP0833987B1 (fr) | 2001-01-24 |
US6052963A (en) | 2000-04-25 |
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