US3729164A - Device for forming continuous walls, by means of consecutive, reinforced-concrete panels - Google Patents

Device for forming continuous walls, by means of consecutive, reinforced-concrete panels Download PDF

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Publication number
US3729164A
US3729164A US00094371A US3729164DA US3729164A US 3729164 A US3729164 A US 3729164A US 00094371 A US00094371 A US 00094371A US 3729164D A US3729164D A US 3729164DA US 3729164 A US3729164 A US 3729164A
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United States
Prior art keywords
concrete
trench
opposite
face
parallel
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Expired - Lifetime
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US00094371A
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English (en)
Inventor
M Baar
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.)
Compagnie Internationale des Pieux Armes Frankignoui SA
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Compagnie Internationale des Pieux Armes Frankignoui SA
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    • 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
    • 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

Definitions

  • ABSTRACT [21 1 App! 9437l
  • the method utilizes a uxem 0mg l mould end of the invention, which is shaped to protect projecting ends of reinforcement bars during casting .[gi] :LSgl. ..249/10, 6l/l;9d224g/:6 of a concrete panel forming the wall
  • the next cast nt. d 0 panel is then cast round the projecting ree e ds of the reinforcement bars of the previous panel.
  • the present invention relates to a device for forming continuous, reinforced-concrete walls which are cast in the ground, the said device permitting the location, within walls of this kind, of a main horizontal, continuous reinforcement.
  • the wall comprises independant reinforced panels in which between the main reinforcement does not pass through the take up joint adjacent panels, the joint located between two consecutive panels constituting only a sealing joint which can, in any case, offer only slight resistance to shear loads.
  • the present invention has the aim of creating a continuous, reinforced-concrete wall, which is cast in the ground, by means of consecutive panels which are provided with a continuous, horizontal reinforcement.
  • the invention consists in a screening device for use in the construction of continuous concrete walls from reinforced concrete panels cast individually, comprising an elongate column adapted to be positioned in a mould trench to form an end of the mould, the column having a profiled casting face with at least one longitudinally extending slot-like recess therein for receiving and shielding the ends of reinforcing bars of a concrete panel to be cast.
  • the invention further consists in a method of constructing a continuous concrete wall cast in the ground including the steps of forming a mould trench in the ground, placing a screening device as set out in the preceding paragraph in said trench to form an end panel for a mould cavity in which a panel is to be cast, with said profiled face inwardly directed towards the mould cavity with an end of the bars located in said recess of said screening device and introducing concrete into the mould cavity thus to form a concrete panel formed.
  • FIG. 1 is a plan view of a flat deep trench ready for the formation of a reinforced-concrete panel which is moulded in the ground, according to the invention.
  • FIG. 2 is a similar view of the trench of FIG. 1, at the ends of which are laid two screen-joints according to the invention.
  • FIG. 3 is a view similar to FIG. 2 showing a reinforcement laid inthe trench.
  • FIG. 4 is a view in partial section showing, in part, the trench illustrated in the preceding Figures and now filled with concrete, and also the trench extended for j the formation ofa further panel.
  • an excavation is effected, in a known manner of a flat trench, under drilling mud based on bentonite or other suitable material.
  • a trench 10 is shown in FIG. 1, and has a pre-determined depth but may be of circular shape or any other suitable shape.
  • a screen-joint 11 which is described in greater detail below, is lowered in at each end of the excavation.
  • This screen-joint 11 is constructed in the form of a column extending the depth of the trench and may be hollow or solid.
  • the screen-joint preferably has, as in the example illustrated, one concave face 11a and an opposite, profiled face 11b.
  • the profile of the said fac 1 lb has a longitudinal recess 12.
  • two deep recesses 13 are formed, which are intended to receive the ends 14 of a reinforcing cage 15 illustrated in FIG. 3, and to largely protect the said ends of the excavation from being filled by concrete during casting of the panel.
  • the reinforcing cage 15 is lowered into the said trench, which is still full of the drilling mud used during excavation. During this lowering operation, the free ends 14 of the horizontal reinforcing bars of the cages 15 engage in the two deep recesses 13 formed in the screen-joints 11 (FIG. 3.)
  • a plunger tube is lowered to the bottom of the excavation, whereupon concrete is discharged from the said plunger tube in sufficient quantities to fill up the entire excavation, in accordance with the conventional operating procedure for this kind of work.
  • a strip 16 of perforated sheet-metal is placed in position beforehand on the reinforcing cage, said strip of sheet-metal being provided with holes 17 through which the free ends 14 of the horizontal bars of the said reinforcing cage pass.
  • the strip is subjected to the action of springs 18 which bear against it and are fixed, at their other ends, to the horizontal bars by any suitable means (FIGS. 7 and 8).
  • the latter are constantly displaced preferably vertically reciprocably, with the aid of hydraulic jacks, for a sufficient number of hours to permit easier removal from the mould.
  • the excavation operation for the next panel proceeds, using the corresponding adjacent screen-joint, which is still in place, as a guide for the excavating grab in order to ensure perfect continuity of the abovementioned excavation.
  • the screen-joint 11 is easily withdrawn, because it has been continuously displaced to prevent adhesion thereto by the concrete, and is then placed at the other end of the trench, whereupon a new reinforcing cage 19 is placed in position (FlG.-) in this trench, in the same way as for the formation of the preceding panel.
  • the screen-joint 11 which is on the left when viewing FIGS. 2 and 3, may be withdrawn, the gap which it leaves vacant then being filled with concrete or else this joint may be retained for the sake of a possible extension of the wall at this end.
  • the new reinforcing cage 19 is guided into position at the screen-joint end, by the two deep slots 13 which are penetrated by the free ends or toothing bars intended to serve as a connection with the reinforcing cage of the panel to be formed next.
  • this reinforcing cage is guided by a continuous, or discontinuous, metal sheet 20 which is integral with the said reinforcing cage and has the same conformation as the concrete nose 21 which was formed, when the preceding panel was concreted, by the longitudinal recess 12 in the profiled face 11b of the screen-joint (FIG. 5).
  • the screen-joint 11 being constantly displaced vertically in order to avoid adhesion by the concrete, as described in connection with the formation of the first panel.
  • outer bars of the horizontal network of the reinforcing cages are situated very close to the outer faces of the wall and leave, after moulding, only a thin layer of concrete, which is nevertheless sufficient to ensure proper covering of the said bars.
  • the free ends or toothing bars 14 and 22 have a length which is sufficient to ensure proper covering thereof and perfect transmission of the traction forces, in order to thus obtain continuity of the reinforced concrete panels which constitute the continuous wall cast in the ground.
  • a mould end device for forming a continuous wall from reinforced concrete panels cast in successive portions in a trench dug in the ground, each concrete panel comprising reinforcement basket means having at its both ends lateral extensions protected from concrete during concrete casting of said panel; wherein said device com rises substantially yertical columns having a substantia ly four-sided form in cross section, two opposite parallel lateral faces of which are adapted to be located adjacent to the longitudinal walls of the trench, the other faces of said columns being respectively a casting face for said concrete panel and an opposite face having in cross section a semi-circular concave shape to constitute a guide for a grab of an excavator for extending said trench, said casting face being provided with a central trapezoidal recess extending longitudinally along said casting face and with two parallel longitudinally extending slots located in planes parallel to said lateral faces and on each side of said central recess near said parallel opposite faces for receiving and shielding said lateral extensions of said basket means.
  • A'mould end device for use in the forming of a continuous wall from reinforced concrete panels cast in successive portions in a trench dug in the ground, said concrete panels being of the type having reinforced basket means with extensions adapted to project laterally from the panels; said mould device comprising a four-sided vertical column having a pair of parallel opposite lateral faces adapted to be positioned adjacent the longitudinal walls of the trench, a casting face joining the lateral faces on first edges thereof, and an opposite face joining the lateral faces on the opposite edges thereof, said casting face having a central longitudinally extending recess, said opposite face having a longitudinally extending excavator guide slot, said column further having first and second parallel longitu-.

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  • 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)
  • Bulkheads Adapted To Foundation Construction (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
US00094371A 1969-12-16 1970-12-02 Device for forming continuous walls, by means of consecutive, reinforced-concrete panels Expired - Lifetime US3729164A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU60021 1969-12-16

Publications (1)

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US3729164A true US3729164A (en) 1973-04-24

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US00094371A Expired - Lifetime US3729164A (en) 1969-12-16 1970-12-02 Device for forming continuous walls, by means of consecutive, reinforced-concrete panels

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Country Link
US (1) US3729164A (fr)
BE (1) BE744770A (fr)
CA (1) CA959633A (fr)
ES (1) ES385871A1 (fr)
FR (1) FR2071576A5 (fr)
GB (1) GB1302756A (fr)
LU (1) LU60021A1 (fr)
NL (1) NL156473B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3796054A (en) * 1971-12-14 1974-03-12 U Piccagli Method for the construction of impermeable walls
US3893302A (en) * 1973-10-25 1975-07-08 Rapidex Inc Machine and method for excavating trenches and for constructing walls in trenches
US3990200A (en) * 1970-07-02 1976-11-09 Takenaka Komuten Company, Ltd. Apparatus for forming reinforced concrete wall
US4621477A (en) * 1985-07-18 1986-11-11 Kinst Dennis I Wall panel system

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2192656B (en) * 1984-04-10 1989-01-25 Finic Bv Method of construction of underground concrete wall
US4728226A (en) * 1984-04-10 1988-03-01 Finic, B.V. Method and apparatus for forming reinforced concrete walls with continuous steel reinforcement
FR2657639A1 (fr) * 1990-01-30 1991-08-02 Bss Infrag Sa Procede de coffrage d'une paroi en beton arme moulee dans une tranchee et coffrage pour la mise en óoeuvre de ce procede.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR581869A (fr) * 1923-05-28 1924-12-08 Forme pour le moulage de carreaux ou plaques employés dans la construction
US3431736A (en) * 1966-02-12 1969-03-11 Shinhachiro Ueda Method of constructing underground concrete walls

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR581869A (fr) * 1923-05-28 1924-12-08 Forme pour le moulage de carreaux ou plaques employés dans la construction
US3431736A (en) * 1966-02-12 1969-03-11 Shinhachiro Ueda Method of constructing underground concrete walls

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3990200A (en) * 1970-07-02 1976-11-09 Takenaka Komuten Company, Ltd. Apparatus for forming reinforced concrete wall
US3796054A (en) * 1971-12-14 1974-03-12 U Piccagli Method for the construction of impermeable walls
US3893302A (en) * 1973-10-25 1975-07-08 Rapidex Inc Machine and method for excavating trenches and for constructing walls in trenches
US4621477A (en) * 1985-07-18 1986-11-11 Kinst Dennis I Wall panel system

Also Published As

Publication number Publication date
ES385871A1 (es) 1974-10-16
DE2016859A1 (de) 1971-06-24
LU60021A1 (fr) 1971-08-17
NL156473B (nl) 1978-04-17
BE744770A (fr) 1970-07-01
FR2071576A5 (fr) 1971-09-17
GB1302756A (fr) 1973-01-10
CA959633A (en) 1974-12-24
DE2016859B2 (de) 1975-07-17
NL7005386A (fr) 1971-06-18

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