FR2504168A1 - Drill for forming annular foundation cavities - comprises tube carrying external helical cutting edge and central concrete feed tube - Google Patents

Drill for forming annular foundation cavities - comprises tube carrying external helical cutting edge and central concrete feed tube Download PDF

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Publication number
FR2504168A1
FR2504168A1 FR8206126A FR8206126A FR2504168A1 FR 2504168 A1 FR2504168 A1 FR 2504168A1 FR 8206126 A FR8206126 A FR 8206126A FR 8206126 A FR8206126 A FR 8206126A FR 2504168 A1 FR2504168 A1 FR 2504168A1
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FR
France
Prior art keywords
concrete
tube
drill
annular
drilling
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.)
Pending
Application number
FR8206126A
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French (fr)
Inventor
Wolf Chitis
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.)
Fondedile SpA
Original Assignee
Fondedile SpA
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 Fondedile SpA filed Critical Fondedile SpA
Publication of FR2504168A1 publication Critical patent/FR2504168A1/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/02Core bits
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28DWORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/04Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
    • B28D1/041Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs with cylinder saws, e.g. trepanning; saw cylinders, e.g. having their cutting rim equipped with abrasive particles
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22Piles
    • E02D5/34Concrete or concrete-like piles cast in position ; Apparatus for making same
    • E02D5/36Concrete or concrete-like piles cast in position ; Apparatus for making same making without use of mouldpipes or other moulds
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/44Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00Sealing or packing boreholes or wells
    • E21B33/10Sealing or packing boreholes or wells in the borehole
    • E21B33/13Methods or devices for cementing, for plugging holes, crevices or the like
    • E21B33/134Bridging plugs

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Structural Engineering (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

The drill for forming annular holes for foundations comprises a tube (a) carrying an external helical cutting edge (b). Concrete is introduced into the annular hole as the drill is withdrawn through the top (e) of the hollow rod (c) carrying the drill. Once casting is complete, a reinforcing framework can be introduced into the concrete using a vibrator.

Description

L'invention a trait a l'exécution, dans un terrain, d'ouvrages a section annulaire. The invention relates to the execution, in a field, of annular section works.

A titre d'exemple non limitatif, ces ouvrages peuvent être utilisés comme pieux de fondation en béton a noyau creux, où la résistance est concentrée dans la zone périphérique en laissant le terrain intact dans la zone centrale; les pieux de ce genre peuvent offrir,par rapport aux pieux ayant n'importe quelle section, une épargne notable de béton et de temps d'execution.  By way of nonlimiting example, these structures can be used as concrete foundation piles with a hollow core, where the resistance is concentrated in the peripheral zone, leaving the ground intact in the central zone; piles of this kind can offer, compared to piles of any cross section, significant savings in concrete and execution time.

Le même système peut être adopté pour réaliser dans le terrain une conduite en béton sans recourir à un creusage préalable pour la mise en place d'un tuyau préfabriqué. The same system can be adopted to make a concrete pipe in the ground without having to dig beforehand for the installation of a prefabricated pipe.

L'equipement est constitué par un tube métallique ayant une longueur correspondant à la longueur de l'ouvrage à réaliser. The equipment consists of a metal tube having a length corresponding to the length of the structure to be produced.

La surface exterieure du tube porte des pas d' hélice saillants correspondant à l'épaisseur du pieu à noyau creux ou du tuyau à réaliser. The outer surface of the tube has protruding propeller pitches corresponding to the thickness of the hollow-core pile or of the pipe to be produced.

Le tube est introduit dans le terrain par rotation, en utilisant l'action de forage de l'hélice formée à sa surface extérieure, et ceci pour toute la hauteur désirée. The tube is introduced into the ground by rotation, using the drilling action of the propeller formed on its outer surface, and this for all the desired height.

Ensuite, le tuyau est extrait et, en même temps (ou aussi successivement si le terrain ne s'effondre pas) le béton est introduit dans le trou creusé. Si nécessaire, une armature peut être introduite, au moyen d'un vibrateur, dans le béton, immédiatement après le coulage de celui-ci. Then, the pipe is extracted and, at the same time (or also successively if the ground does not collapse) the concrete is introduced into the dug hole. If necessary, a reinforcement can be introduced, by means of a vibrator, into the concrete, immediately after it has been poured.

On a aussi prévu la possibilité d'introduire le béton à travers le même équipement de perforation par l'intermédiaire d'une tête tournante d'adduction disposée au sommet du tube de forage.  Provision has also been made for the possibility of introducing the concrete through the same perforating equipment by means of a rotating adduction head disposed at the top of the drilling tube.

L'invention serin maintenant mieux comprise d' après l'exemple de réalisation qu a été représenté sur les figures annexées, sur lesquelles
la figure 1 est une vue latérale de l'équipement de forage,
la figure 2 est la vue de la coupe II-II de la figure 1,
les figures 3, 4, 5 sont des vues latérales schématiques des phases opératoires successives.
The invention can now be better understood from the embodiment that has been shown in the accompanying figures, in which
FIG. 1 is a side view of the drilling equipment,
FIG. 2 is the view of section II-II of FIG. 1,
Figures 3, 4, 5 are schematic side views of the successive operating phases.

En se rapportant tout d'abord aux figures 1 et 2, on remarquera que l'équipement de forage est composé par un tube de forage (a) sur lequel est aménagé une saillie hélicoTdale (b). Le tube (a) est solidaire de la tige de manoeuvre (c) insérée dans la table de rotation (d). Le béton parvient dans le trou par l'intermédiaire de la tête d'adduction (e). Referring first to Figures 1 and 2, it will be noted that the drilling equipment is composed of a drilling tube (a) on which is arranged a helical projection (b). The tube (a) is integral with the operating rod (c) inserted in the rotation table (d). Concrete enters the hole through the supply head (e).

L'exécution de la structure annulaire proposée se réalise comme suit : le tube pénètre dans le terrain, comme il est dit ci-dessus. On réalise ainsi un trou annulaire (f) (figure 3). Lorsque l'appareil a réalisé un trou de la longueur désirée (figure 4), on commence à extraire le tube (a), tandis que l'on coule dans le trou (f) le béton (g) au moyen de la tête tournante d'adduction (e). Une fois que la coulée est termine (figure 5) on peut introduire une armature (i) par exemple à l'aide d'un vibrateur dans le trou annulaire ainsi comblé de béton.  The execution of the proposed annular structure is carried out as follows: the tube penetrates into the ground, as it is said above. This produces an annular hole (f) (Figure 3). When the device has made a hole of the desired length (Figure 4), we begin to extract the tube (a), while we pour the hole (f) the concrete (g) by means of the rotating head of adduction. Once the casting is finished (Figure 5) one can introduce a reinforcement (i) for example using a vibrator in the annular hole thus filled with concrete.

Claims (6)

REvENDICATIONS 1 - Procédé pour l'exécution d'ouvrages annulaires en béton pour des destinations diverses, caractérisé en ce que, dans un premier temps l'on creuse le terrain avec un appareil de forage comportant un tube ae forage creux rotatif (a)muni à l'exteriE.ur de saillies (b) en norme a'hélice puis que,dans un secona temps, l'on coule le béton dans le trou annulaire ainsi constitué. 1 - Process for the execution of annular concrete structures for various destinations, characterized in that, initially, the ground is excavated with a drilling apparatus comprising a rotary hollow drilling tube (a) provided with the outside of projections (b) in standard with propeller then that, in a second time, the concrete is poured in the annular hole thus constituted. 2 - Procédé selon la revendication 1, caractérisé en ce que le béton est introduit dans le trou annulaire (f), au cours de l'extraction de l'appareil de forage (a), à travers une tête tournante d'adduction (e) disposée sur la tige de manoeuvre (c) de l'appareil proprement dit. 2 - Method according to claim 1, characterized in that the concrete is introduced into the annular hole (f), during the extraction of the drilling device (a), through a rotating adduction head (e ) arranged on the operating rod (c) of the device itself. 3 - Procédé selonl'unedes revendications 1 ou 2, caractérisé en ce que l'on procède à l'introduction d'une armature (i) dans le trou après retrait de l'appareil de forage (a). 3 - Method according to one of claims 1 or 2, characterized in that one proceeds to the introduction of a frame (i) in the hole after removal of the drilling rig (a). 4 - Procédé selon l'une des revendications 1 ou 2, caractérisé en ce que l'on introduit une armature (i) dans le béton déjà coulé, de préférence en utilisant un vibrateur. 4 - Method according to one of claims 1 or 2, characterized in that one introduces a frame (i) in the concrete already poured, preferably using a vibrator. 5 - Equipement destiné à réaliser un forage selon le procédé de la revendication 1, caractérisé en ce qu'il comporte un tube (a) muni de saillies hélicoldales (b). 5 - Equipment for carrying out a drilling according to the method of claim 1, characterized in that it comprises a tube (a) provided with helical projections (b). 6 - Structure annulaire résistance réalisée in situ au moyen du procédé selon la revendication 1, caractérisée en ce que la dite structure est constituée par remplissage de la cavité annulaire (f) avec du béton (g) armé ou non, suivi de la prise du dit béton.  6 - annular resistance structure produced in situ by the method according to claim 1, characterized in that said structure is formed by filling the annular cavity (f) with concrete (g) reinforced or not, followed by setting the says concrete.
FR8206126A 1981-04-17 1982-04-08 Drill for forming annular foundation cavities - comprises tube carrying external helical cutting edge and central concrete feed tube Pending FR2504168A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT40426/81A IT1147107B (en) 1981-04-17 1981-04-17 PROCEDURE FOR THE EXECUTION OF ANNULAR CABLES FOR DIFFERENT PURPOSES, AMONG WHICH, CONSTRUCTION OF FOUNDATION SOULS WITH CORE BODY AND RELATED TOOL

Publications (1)

Publication Number Publication Date
FR2504168A1 true FR2504168A1 (en) 1982-10-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR8206126A Pending FR2504168A1 (en) 1981-04-17 1982-04-08 Drill for forming annular foundation cavities - comprises tube carrying external helical cutting edge and central concrete feed tube

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FR (1) FR2504168A1 (en)
IT (1) IT1147107B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5188485A (en) * 1990-06-29 1993-02-23 Pfleiderer Verkehrstechnik Gmbh Foundation pile of reinforced concrete
EP0588143A1 (en) * 1992-09-01 1994-03-23 Strabag Hoch- Und Ingenieurbau Ag Earth drill for placing a concrete pile in situ
WO2007020445A1 (en) * 2005-08-18 2007-02-22 Fugro Seacore Limited Methods and apparatus for the installation of foundation piles
EP2378055A1 (en) * 2010-04-14 2011-10-19 Landi di Stefano Chiarugi & C. S.a.s. A method for the reconstruction of wells through the removal of the old casing by using a single reverse-circulation perforation and relative device
WO2024068659A1 (en) * 2022-09-26 2024-04-04 Itrec B.V. Drill assembly for excavating vertical annular cavities in the seafloor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5188485A (en) * 1990-06-29 1993-02-23 Pfleiderer Verkehrstechnik Gmbh Foundation pile of reinforced concrete
EP0588143A1 (en) * 1992-09-01 1994-03-23 Strabag Hoch- Und Ingenieurbau Ag Earth drill for placing a concrete pile in situ
WO2007020445A1 (en) * 2005-08-18 2007-02-22 Fugro Seacore Limited Methods and apparatus for the installation of foundation piles
EP2378055A1 (en) * 2010-04-14 2011-10-19 Landi di Stefano Chiarugi & C. S.a.s. A method for the reconstruction of wells through the removal of the old casing by using a single reverse-circulation perforation and relative device
WO2024068659A1 (en) * 2022-09-26 2024-04-04 Itrec B.V. Drill assembly for excavating vertical annular cavities in the seafloor

Also Published As

Publication number Publication date
IT8140426A0 (en) 1981-04-17
IT1147107B (en) 1986-11-19

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