EP1098064A1 - Auger drilling device - Google Patents

Auger drilling device Download PDF

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Publication number
EP1098064A1
EP1098064A1 EP00402880A EP00402880A EP1098064A1 EP 1098064 A1 EP1098064 A1 EP 1098064A1 EP 00402880 A EP00402880 A EP 00402880A EP 00402880 A EP00402880 A EP 00402880A EP 1098064 A1 EP1098064 A1 EP 1098064A1
Authority
EP
European Patent Office
Prior art keywords
auger
casing
tube
rod
translation
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Withdrawn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
EP00402880A
Other languages
German (de)
French (fr)
Inventor
Bertrand Steff De Verninac
Philippe Chagnot
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 du Sol SARL
Original Assignee
Compagnie du Sol SARL
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 Compagnie du Sol SARL filed Critical Compagnie du Sol SARL
Publication of EP1098064A1 publication Critical patent/EP1098064A1/en
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/002—Drilling with diversely driven shafts extending into the borehole
    • 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
    • E02D5/22—Piles
    • E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
    • E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
    • E02D5/385—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds with removal of the outer mould-pipes
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B12/00—Accessories for drilling tools
    • E21B12/06—Mechanical cleaning devices
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B15/00—Supports for the drilling machine, e.g. derricks or masts
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
    • E21B19/086—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods with a fluid-actuated cylinder
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/24—Guiding or centralising devices for drilling rods or pipes
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
    • E21B7/201—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes with helical conveying means

Definitions

  • the present invention relates to a device for drilling the auger type.
  • Auger type drilling devices allow dig in the ground a generally cylindrical excavation of variable depth using the drilling tool, i.e. the auger, as it sinks into the ground.
  • a problem that arises when carrying out such drilling is the management of the excavated soil as and when this drilling.
  • Part of the excavated soil can be used to fill in recesses in the borehole wall. It can also be used to be partly mixed to a grout to carry out as the extraction of the tool out from drilling a solid inclusion in this excavation which then serves as "mold".
  • An object of the present invention is to provide a device for auger type drilling which effectively achieves a large flexibility in the management of the fraction of the excavated soil according to the nature of the soil in which drilling is carried out, using the presence of casing.
  • the casing is pushed into the borehole as it is dug by the auger by the displacement of the mounting head.
  • the possibilities of translational displacement of the auger relative to the casing it is possible to cause the ejection of the soil excavated towards its wall or, on the contrary, causing it to rise to inside the casing.
  • the auger is of the variable core type, that is to say that the auger core has a diameter which increases from the bottom to the high. This type of auger promotes lateral removal of spoil.
  • the means for limiting the rotation of the casing include reliefs extending over the entire length of the face external of said casing and a holding part, integral with the means of guiding in vertical translation, provided with internal reliefs suitable for cooperate with the reliefs of said casing.
  • a platform 10 is shown on which is mounted a vertical guide mast 12, the platform also supporting a number of devices such as 14 for allow the use of the drilling tool.
  • the drilling device comprises also a carriage 16 which is subject to move in translation vertical along the guide mast 12.
  • the guide mast could be replaced for example by vertical ropes supported by the end of a crane or the like, these cables used to guide the carriage 16 in vertical translation.
  • the drilling tool consists of a rod rotation transmission 22 at the lower end 22a of which is fixed an auger 24 of known type.
  • the upper end 22b of the rod 22 cooperates with the mounting head 18 to rotate the auger 24 via the rod 22.
  • the cooperation between the upper end 22b of the rod and the mounting head 18 is such that this upper end of the rod can be moved in translation vertical to this head 18 while maintaining the drive in rotation.
  • the drilling device also comprises a casing 30 which consists of a cylindrical piece of length 12 which surrounds the rod 22, the upper end 30a of which is integral with the mounting head 18 and the lower end 30b of which is open.
  • Tubing 30 is introduced in drilling as it is excavated by the auger 24 under the effect of the descent of the mounting head 18.
  • the control of the ascent and descent of the mounting head 18 along the mast 12 is produced for example by a cable system 32, pulleys 34 and winch 35, or by jacks.
  • the lower part of the auger 24 which is referenced 24a has an external diameter D which is substantially equal to the external diameter D 1 of the casing 30.
  • the upper part 24b of the auger 24 has a diameter less than the internal diameter of the casing 30 to allow the insertion of the upper part of the auger inside the lower end of the casing 30.
  • the length I 1 of the auger 24 is much less than the length I 2 of the casing 30.
  • the rod 22 is preferably equipped with discontinuous blades such than 36 which are arranged above the auger 24. These blades allow a partial recovery of the static charge due to the presence cuttings inside the casing, which limits the stress applied by these auger cuttings. Preferably, these blades have a pitch which goes in decreasing when approaching the auger.
  • the auger 24 is rotated in the direction opposite to that which corresponds to drilling.
  • the auger is of the variable diameter type.
  • a first embodiment of such an auger is shown in FIG. 4 a .
  • the core 90 has a diameter which increases from its tip 92 to its zone 94 of attachment to the rod 96.
  • the external diameter of the auger that is to say of its blade 96, goes also increasing in this direction.
  • the core 90 has a diameter which increases towards its tip 92.
  • the outside diameter of its blade 96 ' is constant.
  • the drilling device also includes means for resumption of the forces applied to the casing 30 due to the action of the auger and cuttings excavated on the casing.
  • a lateral mechanical stop device 40 cooperating with a rib 42 extending at least over the part bottom of the outer face of the casing 30.
  • the cooperation between the fixed mechanical stops 40 and the rib 42 makes it possible to immobilize in rotation of the casing or at least limit the possibilities of rotation.
  • FIG. 1 shows the vertical guide mast 12, the carriage 14 on which is fixed a first mounting head 18 for an upper auger 50 which is fixed to the lower end of a hollow rod 52 whose upper part 52a cooperates with the mounting head 18 to rotate the upper auger 50.
  • means for example by jacks 54 allow the rod 52 of the auger 50 to be displaced in vertical translation relative to the head mounting 18.
  • the drilling device also comprises the casing 30 whose upper end 30a is integral with the mounting head 18 and whose lower end 30b is open.
  • the external diameter d 1 of the upper auger 50 is less than the internal diameter of the casing 30.
  • the drilling device comprises a second auger lower 56 which is integral with the lower end of a rod 58 whose upper part 58a cooperates with a second mounting head 60 connected to the carriage 14 or to the first mounting head 18.
  • the rod 58 of the lower auger 56 is movable in vertical translation relative to the first mounting head 18.
  • means by cylinders 62 are interposed between the lower mounting head 18 and the upper end 58a of the rod 58.
  • the upper mounting head 60 is movable in translation relative to the carriage 14 by guide means symbolized at 64. In this case, it it is not necessary to provide the means by cylinders 62. It is possible also provide a single device to drive in translation at a time the mounting head 60 and the rod 52 of the upper auger 50.
  • the lower auger 56 has an external diameter D 2 which is slightly greater than the external diameter of the casing 30.
  • the lower auger 56 in normal operation, is used to drill the ground and to feed the upper auger 50, this making the cuttings penetrate inside the casing 30.
  • the setting rotation of the upper auger 50 in a direction opposite to that of the lower auger 56, which of course promotes the ejection of cuttings towards the inner wall of the borehole.
  • the end lower of the upper auger 50 must be arranged below the lower edge 30b of the casing.
  • the augers 50 and 56 are lowered so that the upper end 50a of the upper auger 50 is disposed well below the lower edge 30b of the casing. We thus obtain easy flow of the cuttings contained in the casing. This flow can be favored by the rotation of the upper auger 50 and its discontinuous blades 36.
  • the drilling tool can include also an injection tube 59 which is movably mounted by cylinders 61 in the rod 58 of the lower auger 56.
  • this tube 61 generally called “dip tube” allows to inject at the bottom of the drilling, as the tool rises, a grout which, mixed or not to part of the excavated soil, is used to achieve an inclusion solid in this drilling.
  • This tube can also be used to inject the part lower of the drilling a grout or a concrete, not mixed with the cuttings, for make a pile molded with grout or concrete.
  • FIGS. 2b and 3 two examples of systems for immobilizing the casing in rotation or at least for limiting the rotation of the casing 30 under the effect of the forces resulting from the rotation of the drilling tool and cuttings present in the casing.
  • the system comprises two arms 70 and 72 integral with the platform 10.
  • the end free of each arm is equipped with a portion of slide 74 and 76.
  • the casing 30, at least in its lower part, is provided, on its outer face, two vertical ribs 78 and 79 which extend at least on the lower part of the casing or which extend over the entire length thereof and which are engaged in the slides 74 and 76.
  • arms 70 and 72 could be replaced by any other rigid connection system.
  • this system could be secured to the lower end of the mast 12 instead of being secured to the platform 10.
  • the free ends arms 70 and 72 are integral with a vertical sleeve 82 which surrounds the casing 30.
  • the internal face of the sleeve is provided with grooves vertical or similar reliefs 82.
  • the external face of the casing 30, at less in its lower part or over its entire length, is equipped with vertical grooves 84 or similar reliefs which cooperate with the grooves 82 of the sleeve 80.

Abstract

The top (30a) of a vertical cylindrical tube (30) Is fixed to a head assembly (18), the lower end (30b) being open. The tube length (l2) considerably exceeds that (l1) of the auger. The drilling tool shaft is translated w.r.t the head assembly. In a first retracted position, the auger is partly accommodated in the tube. In a second extended position, it is entirely below the end of the tube. The tube is held against rotation under the operational forces applied to it. Preferred Features: Rotation is limited by spline-like formations along the entire external face of the tube. These mesh with internal splines of a holder fixed to the vertical guidance system. A single drilling tool is included, its auger (24) having a diameter no less than the external diameter of the tube. Alternatively, a second auger is located below the first, with concentric drive shaft construction, having an additional head assembly, permitting displacement of the second auger relative to the first head assembly. The first auger is a variable core type. A tube for concrete injection is included. The internal face of the tube (30) carries projections over at least part of its length.

Description

La présente invention a pour objet un dispositif de forage du type à tarière.The present invention relates to a device for drilling the auger type.

Les dispositifs de forage du type à tarière permettent de creuser dans le sol une excavation de forme générale cylindrique de profondeur variable à l'aide de l'outil de forage, c'est-à-dire de la tarière, au fur et à mesure de l'enfoncement de celle-ci dans le sol.Auger type drilling devices allow dig in the ground a generally cylindrical excavation of variable depth using the drilling tool, i.e. the auger, as it sinks into the ground.

Un problème qui se pose lors de la réalisation de tels forages est la gestion du sol excavé au fur et à mesure de la réalisation de ce forage. Une partie du sol excavé peut servir à combler des évidements dans la paroi du forage. Il peut servir également à être en partie mélangé à un coulis pour réaliser au fur et à mesure de l'extraction de l'outil hors du forage une inclusion solide dans cette excavation qui sert alors de "moule". Il existe également un nombre certain de situations dans lesquelles il est nécessaire de pouvoir extraire du forage au moins une partie du sol excavé pour remplir en totalité l'excavation afin d'obtenir un pieu en béton ou en coulis.A problem that arises when carrying out such drilling is the management of the excavated soil as and when this drilling. Part of the excavated soil can be used to fill in recesses in the borehole wall. It can also be used to be partly mixed to a grout to carry out as the extraction of the tool out from drilling a solid inclusion in this excavation which then serves as "mold". There are also a number of situations in which it is necessary to be able to extract from the borehole at least one part of the excavated soil to completely fill the excavation in order to obtain a concrete or grout pile.

On sait également que, lorsque le sol dans lequel le forage est réalisé présente des inégalités ou irrégularités quant à sa tenue mécanique, on utilise un système de tubage constitué par une pièce cylindrique qui est mise en place au fur et à mesure du forage de l'excavation afin de maintenir les parois de cette excavation. La présence d'un tel tubage soulève des problèmes spécifiques en ce qui concerne la gestion de la fraction du sol excavé au cours de ce forage.It is also known that when the soil in which the borehole is carried out presents unevenness or irregularities in its behavior mechanical, we use a casing system consisting of a part cylindrical which is put in place as the drilling of the excavation in order to maintain the walls of this excavation. The presence of such casing raises specific problems with regard to the management of the fraction of soil excavated during this drilling.

Un objet de la présente invention est de fournir un dispositif de forage du type à tarière qui permette d'obtenir effectivement une grande souplesse dans la gestion de la fraction du sol excavé selon la nature du sol dans lequel le forage est réalisé, en utilisant la présence d'un tubage.An object of the present invention is to provide a device for auger type drilling which effectively achieves a large flexibility in the management of the fraction of the excavated soil according to the nature of the soil in which drilling is carried out, using the presence of casing.

Pour atteindre ce but selon l'invention, le dispositif de forage comprenant des moyens de guidage en translation verticale,

  • au moins un premier outil de forage comprenant une première tarière fixée à l'extrémité inférieure d'une première tige de mise en rotation de ladite tarière, ladite tarière ayant une longueur ;
  • un chariot assujetti à se déplacer verticalement le long des moyens de guidage en translation verticale ;
  • au moins une première tête de montage solidaire dudit chariot et munie de moyens de mise en rotation de la tige dudit outil de forage ;
    •    ledit dispositif se caractérisant en ce qu'il comprend en outre :
  • un tubage ayant la forme d'un cylindre à génératrices verticales, dont l'extrémité supérieure est solidaire de ladite tête de montage et dont l'extrémité inférieure est ouverte, ledit tubage ayant une longueur très supérieure à la longueur de ladite tarière ;
  • des moyens pour déplacer en translation ladite tige de l'outil de forage par rapport à la tête de montage de telle manière que dans une première position rentrée, ladite tarière soit en partie logée dans ledit tubage et que dans une deuxième position sortie, ladite tarière soit entièrement disposée en dessous de l'extrémité inférieure dudit tubage ; et
  • des moyens pour au moins limiter la rotation dudit tubage par rapport aux moyens de guidage en translation sous l'effet des efforts appliqués audit tubage.
    •  To achieve this object according to the invention, the drilling device comprising means for guiding in vertical translation,
  • at least a first drilling tool comprising a first auger fixed to the lower end of a first rod for rotating said auger, said auger having a length;
  • a carriage subject to move vertically along the guide means in vertical translation;
  • at least a first mounting head integral with said carriage and provided with means for rotating the rod of said drilling tool;
    • said device being characterized in that it further comprises:
  • a casing in the form of a cylinder with vertical generators, the upper end of which is secured to said mounting head and the lower end of which is open, said casing having a length much greater than the length of said auger;
  • means for translating said rod of the drilling tool in translation relative to the mounting head in such a way that in a first retracted position, said auger is partly housed in said casing and that in a second extended position, said auger is entirely disposed below the lower end of said casing; and
  • means for at least limiting the rotation of said casing relative to the guide means in translation under the effect of the forces applied to said casing.

    • On comprend que, grâce aux dispositions de l'invention, le tubage est enfoncé dans le forage au fur et à mesure de son creusement par la tarière par le déplacement de la tête de montage. On comprend également que, grâce aux possibilités de déplacement en translation de la tarière par rapport au tubage, il est possible de provoquer l'éjection du sol excavé vers sa paroi ou, au contraire, de provoquer sa remontée à l'intérieur du tubage. Une fois que l'ensemble du tubage et de l'outil de forage est remonté à la surface après le forage de l'excavation, il est possible de faire descendre la tarière par rapport à l'extrémité inférieure du tubage pour permettre l'évacuation du sol excavé retenu à l'intérieur du tubage.It is understood that, thanks to the provisions of the invention, the casing is pushed into the borehole as it is dug by the auger by the displacement of the mounting head. We understand also that, thanks to the possibilities of translational displacement of the auger relative to the casing, it is possible to cause the ejection of the soil excavated towards its wall or, on the contrary, causing it to rise to inside the casing. Once all of the tubing and the drill is brought to the surface after drilling the excavation it is possible to lower the auger from the lower end casing to allow the evacuation of the excavated soil retained inside the casing.

    De préférence, la tarière est du type à âme variable, c'est-à-dire que l'âme de la tarière a un diamètre qui croít du bas vers le haut. Ce type de tarière favorise l'évacuation latérale des déblais.Preferably, the auger is of the variable core type, that is to say that the auger core has a diameter which increases from the bottom to the high. This type of auger promotes lateral removal of spoil.

    Selon un mode perfectionné de mise en oeuvre, le dispositif se caractérise en ce qu'il comprend en outre :

  • un deuxième outil de forage comprenant une deuxième tarière disposée en dessous de la première tarière et une deuxième tige de mise en rotation montée dans ladite première tige de mise en rotation qui est creuse ;
  • une deuxième tête de montage pour la mise en rotation dudit deuxième outil de forage reliée audit chariot ; et
  • des moyens pour déplacer en translation ladite deuxième tarière par rapport à ladite première tête de montage.
    • According to an improved mode of implementation, the device is characterized in that it further comprises:
  • a second drilling tool comprising a second auger disposed below the first auger and a second rotation rod mounted in said hollow rotation first rod;
  • a second mounting head for rotating said second drilling tool connected to said carriage; and
  • means for translating said second auger relative to said first mounting head.

    • De préférence, les moyens de limitation de la rotation du tubage comprennent des reliefs s'étendant sur toute la longueur de la face externe dudit tubage et une pièce de maintien, solidaire des moyens de guidage en translation verticale, munie de reliefs internes aptes à coopérer avec les reliefs dudit tubage.Preferably, the means for limiting the rotation of the casing include reliefs extending over the entire length of the face external of said casing and a holding part, integral with the means of guiding in vertical translation, provided with internal reliefs suitable for cooperate with the reliefs of said casing.

    D'autres caractéristiques et avantages de l'invention apparaítront mieux à la lecture de la description qui suit de plusieurs modes de réalisation de l'invention donnés à titre d'exemples non limitatifs. La description se réfère aux figures annexées, sur lesquelles :

    • la figure 1 est une vue en élévation d'un premier mode de réalisation du dispositif de forage qui comporte une seule tarière ;
    • la figure 2a est une vue en élévation d'un deuxième mode de réalisation du dispositif de forage comportant deux tarières coaxiales et un tube plongeur d'amenée de coulis ;
    • la figure 2b est une vue de dessus de la partie inférieure du dispositif montrant la liaison entre le tubage et le dispositif de guidage en translation verticale ;
    • la figure 3 est une vue de dessus analogue à celle de la figure 2b montrant une variante de réalisation du dispositif de maintien en rotation du tubage ;
    • la figure 4a montre un premier mode de réalisation de tarière à âme variable ; et
    • la figure 4b montre un deuxième mode de réalisation d'une tarière à âme variable.
    Other characteristics and advantages of the invention will appear better on reading the following description of several embodiments of the invention given by way of non-limiting examples. The description refers to the appended figures, in which:
    • Figure 1 is an elevational view of a first embodiment of the drilling device which comprises a single auger;
    • Figure 2a is an elevational view of a second embodiment of the drilling device comprising two coaxial augers and a grout supply dip tube;
    • Figure 2b is a top view of the lower part of the device showing the connection between the casing and the guide device in vertical translation;
    • Figure 3 is a top view similar to that of Figure 2b showing an alternative embodiment of the device for holding the casing in rotation;
    • FIG. 4a shows a first embodiment of a variable core auger; and
    • Figure 4b shows a second embodiment of a variable core auger.

    En se référant tout d'abord à la figure 1, on va décrire un premier mode de réalisation du dispositif de forage à tarière.Referring first to Figure 1, we will describe a first embodiment of the auger drilling device.

    Sur cette figure, on a représenté une plate-forme 10 sur laquelle est monté un mât vertical de guidage 12, la plate-forme supportant également un certain nombre d'équipements tels que 14 pour permettre l'utilisation de l'outil de forage. Le dispositif de forage comporte également un chariot 16 qui est assujetti à se déplacer en translation verticale le long du mât de guidage 12. Il va de soi que, dans une variante de réalisation, le mât de guidage pourrait être remplacé par exemple par des filins verticaux supportés par l'extrémité d'une grue ou analogue, ces filins servant à guider en translation verticale le chariot 16.In this figure, a platform 10 is shown on which is mounted a vertical guide mast 12, the platform also supporting a number of devices such as 14 for allow the use of the drilling tool. The drilling device comprises also a carriage 16 which is subject to move in translation vertical along the guide mast 12. It goes without saying that, in a variant embodiment, the guide mast could be replaced for example by vertical ropes supported by the end of a crane or the like, these cables used to guide the carriage 16 in vertical translation.

    Sur le chariot 16 est fixée une tête de montage 18 d'un outil de forage à tarière 20. L'outil de forage est constitué par une tige de transmission de rotation 22 à l'extrémité inférieure 22a de laquelle est fixée une tarière 24 de type connu. L'extrémité supérieure 22b de la tige 22 coopère avec la tête de montage 18 pour entraíner en rotation la tarière 24 par l'intermédiaire de la tige 22. En outre, la coopération entre l'extrémité supérieure 22b de la tige et la tête de montage 18 est telle que cette extrémité supérieure de la tige puisse être déplacée en translation verticale par rapport à cette tête 18 tout en maintenant l'entraínement en rotation. Pour commander le déplacement en translation de la tige par rapport à la tête de montage 18, on peut prévoir par exemple l'interposition de vérins 26 ou de moyens mécaniques analogues entre la tête de montage 18 et un système rotulant 28 solidaire de l'extrémité supérieure 22b de la tige.On the carriage 16 is fixed a mounting head 18 of a tool auger drilling 20. The drilling tool consists of a rod rotation transmission 22 at the lower end 22a of which is fixed an auger 24 of known type. The upper end 22b of the rod 22 cooperates with the mounting head 18 to rotate the auger 24 via the rod 22. In addition, the cooperation between the upper end 22b of the rod and the mounting head 18 is such that this upper end of the rod can be moved in translation vertical to this head 18 while maintaining the drive in rotation. To control the translational movement of the rod by relative to the mounting head 18, one can provide for example the interposition of jacks 26 or similar mechanical means between the mounting head 18 and a swiveling system 28 integral with the end upper 22b of the rod.

    Le dispositif de forage comporte également un tubage 30 qui est constitué par une pièce cylindrique de longueur 12 qui entoure la tige 22, dont l'extrémité supérieure 30a est solidaire de la tête de montage 18 et dont l'extrémité inférieure 30b est ouverte. Le tubage 30 est introduit dans le forage au fur et à mesure de l'excavation de celui-ci par la tarière 24 sous l'effet de la descente de la tête de montage 18. En outre, comme cela est bien connu, le contrôle de la montée et de la descente de la tête de montage 18 le long du mât 12 est réalisé par exemple par un système de câble 32, de poulies 34 et de treuil 35, ou par des vérins.The drilling device also comprises a casing 30 which consists of a cylindrical piece of length 12 which surrounds the rod 22, the upper end 30a of which is integral with the mounting head 18 and the lower end 30b of which is open. Tubing 30 is introduced in drilling as it is excavated by the auger 24 under the effect of the descent of the mounting head 18. In addition, as is well known, the control of the ascent and descent of the mounting head 18 along the mast 12 is produced for example by a cable system 32, pulleys 34 and winch 35, or by jacks.

    De préférence, la partie inférieure de la tarière 24 qui est référencée 24a présente un diamètre externe D qui est sensiblement égal au diamètre externe D1 du tubage 30. En revanche, la partie supérieure 24b de la tarière 24 a un diamètre inférieur au diamètre intérieur du tubage 30 pour permettre l'insertion de la partie supérieure de la tarière à l'intérieur de l'extrémité inférieure du tubage 30. La longueur I1 de la tarière 24 est très inférieure à la longueur I2 du tubage 30.Preferably, the lower part of the auger 24 which is referenced 24a has an external diameter D which is substantially equal to the external diameter D 1 of the casing 30. On the other hand, the upper part 24b of the auger 24 has a diameter less than the internal diameter of the casing 30 to allow the insertion of the upper part of the auger inside the lower end of the casing 30. The length I 1 of the auger 24 is much less than the length I 2 of the casing 30.

    Il faut souligner que, grâce à la possibilité de déplacer en translation la tarière 24 par rapport à l'extrémité inférieure 30b du tubage 30, il est possible de gérer de façon convenable les portions de sol excavé par la tarière 24. Lorsque la tarière est en position "rentrée" représentée sur la figure 1 on favorise, au fur et à mesure de la réalisation du forage, l'introduction du sol excavé à l'intérieur du tubage 30. Pour limiter la pression exercée sur la tarière par le sol excavé à l'intérieur du tubage, la tige 22 est équipée de préférence de pales discontinues telles que 36 qui sont disposées au-dessus de la tarière 24. Ces pales permettent une reprise partielle de la charge statique due à la présence des déblais à l'intérieur du tubage, ce qui limite la contrainte appliquée par ces déblais à la tarière. De préférence, ces pales ont un pas qui va en diminuant lorsqu'on se rapproche de la tarière.It should be emphasized that, thanks to the possibility of moving in translation of the auger 24 relative to the lower end 30b of the casing 30, it is possible to suitably manage the portions of soil excavated by the auger 24. When the auger is in the "retracted" position shown in Figure 1 we favor, as and when the realization drilling, introducing the excavated soil inside the casing 30. To limit the pressure exerted on the auger by the soil excavated inside the casing, the rod 22 is preferably equipped with discontinuous blades such than 36 which are arranged above the auger 24. These blades allow a partial recovery of the static charge due to the presence cuttings inside the casing, which limits the stress applied by these auger cuttings. Preferably, these blades have a pitch which goes in decreasing when approaching the auger.

    Lorsque l'on veut favoriser l'éjection du sol excavé vers la paroi du forage, on commande la mise en rotation de la tarière 24 dans le sens inverse de celui qui correspond au forage.When we want to encourage the ejection of the excavated soil towards the wall drilling, the auger 24 is rotated in the direction opposite to that which corresponds to drilling.

    Il est possible aussi de prévoir que la tarière soit du type à diamètre variable. On a représenté un premier mode de réalisation d'une telle tarière sur la figure 4a. Dans cette tarière, l'âme 90 a un diamètre qui va en augmentant de sa pointe 92 à sa zone 94 de fixation à la tige 96. Le diamètre externe de la tarière, c'est-à-dire de sa pale 96, va également en croissant selon cette direction. Dans le cas du mode de réalisation de la figure 4b, l'âme 90 a un diamètre qui va en croissant vers sa pointe 92. En revanche, le diamètre extérieur de sa pale 96' est constant.It is also possible to provide that the auger is of the variable diameter type. A first embodiment of such an auger is shown in FIG. 4 a . In this auger, the core 90 has a diameter which increases from its tip 92 to its zone 94 of attachment to the rod 96. The external diameter of the auger, that is to say of its blade 96, goes also increasing in this direction. In the case of the embodiment of FIG. 4b, the core 90 has a diameter which increases towards its tip 92. On the other hand, the outside diameter of its blade 96 'is constant.

    Lorsque le forage est terminé et que l'ensemble du dispositif est extrait de ce forage, il est possible de vider de façon aisée les déblais contenus dans le tubage en provoquant la descente de la tarière 24 par rapport à l'extrémité inférieure du tubage 30, de telle manière qu'un jour existe entre le bord inférieur du tubage et la partie supérieure de la tarière.When the drilling is finished and the whole device is extracted from this borehole, it is possible to easily empty the spoil contained in the casing by causing the auger 24 to descend by relative to the lower end of the casing 30, so that one day exists between the lower edge of the casing and the upper part of the auger.

    Le dispositif de forage comporte également des moyens de reprise des efforts appliqués au tubage 30 en raison de l'action de la tarière et des déblais excavés sur le tubage. Par exemple, on peut prévoir à la partie inférieure 12a du mât un dispositif de butée mécanique latérale 40 coopérant avec une nervure 42 s'étendant au moins sur la partie inférieure de la face externe du tubage 30. La coopération entre les butées mécaniques fixes 40 et la nervure 42 permet d'immobiliser en rotation le tubage ou au moins d'en limiter les possibilités de rotation.The drilling device also includes means for resumption of the forces applied to the casing 30 due to the action of the auger and cuttings excavated on the casing. For example, we can plan at the lower part 12a of the mast a lateral mechanical stop device 40 cooperating with a rib 42 extending at least over the part bottom of the outer face of the casing 30. The cooperation between the fixed mechanical stops 40 and the rib 42 makes it possible to immobilize in rotation of the casing or at least limit the possibilities of rotation.

    En se référant maintenant à la figure 2a, on va décrire un deuxième mode de réalisation du dispositif de forage comportant deux tarières. Referring now to Figure 2a, we will describe a second embodiment of the drilling device comprising two augers.

    Sur cette figure, on a représenté le mât de guidage vertical 12, le chariot 14 sur lequel est fixée une première tête de montage 18 pour une tarière supérieure 50 qui est fixée à l'extrémité inférieure d'une tige creuse 52 dont la partie supérieure 52a coopère avec la tête de montage 18 pour entraíner en rotation la tarière supérieure 50. Comme dans le premier mode de réalisation, des moyens par exemple par vérins 54 permettent de déplacer en translation verticale la tige 52 de la tarière 50 par rapport à la tête de montage 18. Le dispositif de forage comporte également le tubage 30 dont l'extrémité supérieure 30a est solidaire de la tête de montage 18 et dont l'extrémité inférieure 30b est ouverte. Le diamètre externe d1 de la tarière supérieure 50 est inférieur au diamètre interne du tubage 30.This figure shows the vertical guide mast 12, the carriage 14 on which is fixed a first mounting head 18 for an upper auger 50 which is fixed to the lower end of a hollow rod 52 whose upper part 52a cooperates with the mounting head 18 to rotate the upper auger 50. As in the first embodiment, means for example by jacks 54 allow the rod 52 of the auger 50 to be displaced in vertical translation relative to the head mounting 18. The drilling device also comprises the casing 30 whose upper end 30a is integral with the mounting head 18 and whose lower end 30b is open. The external diameter d 1 of the upper auger 50 is less than the internal diameter of the casing 30.

    Le dispositif de forage comporte une deuxième tarière inférieure 56 qui est solidaire de l'extrémité inférieure d'une tige 58 dont la partie supérieure 58a coopère avec une deuxième tête de montage 60 reliée au chariot 14 ou à la première tête de montage 18. La tige 58 de la tarière inférieure 56 est mobile en translation verticale par rapport à la première tête de montage 18. Pour cela, on peut prévoir que des moyens par vérins 62 soient interposés entre la tête de montage inférieure 18 et l'extrémité supérieure 58a de la tige 58. On peut prévoir également que la tête supérieure de montage 60 soit mobile en translation par rapport au chariot 14 par des moyens de guidage symbolisés en 64. Dans ce cas, il n'est pas nécessaire de prévoir les moyens par vérins 62. On peut également prévoir un seul dispositif pour entraíner en translation à la fois la tête de montage 60 et la tige 52 de la tarière supérieure 50.The drilling device comprises a second auger lower 56 which is integral with the lower end of a rod 58 whose upper part 58a cooperates with a second mounting head 60 connected to the carriage 14 or to the first mounting head 18. The rod 58 of the lower auger 56 is movable in vertical translation relative to the first mounting head 18. For this, it can be provided that means by cylinders 62 are interposed between the lower mounting head 18 and the upper end 58a of the rod 58. It can also be provided that the upper mounting head 60 is movable in translation relative to the carriage 14 by guide means symbolized at 64. In this case, it it is not necessary to provide the means by cylinders 62. It is possible also provide a single device to drive in translation at a time the mounting head 60 and the rod 52 of the upper auger 50.

    Afin de faciliter l'enfoncement du tubage 30, la tarière inférieure 56 présente un diamètre externe D2 qui est légèrement supérieur au diamètre externe du tubage 30.In order to facilitate the insertion of the casing 30, the lower auger 56 has an external diameter D 2 which is slightly greater than the external diameter of the casing 30.

    Dans ce deuxième mode de réalisation du dispositif de forage, en fonctionnement normal, la tarière inférieure 56 sert à forer le terrain et à alimenter la tarière supérieure 50, celle-ci faisant pénétrer les déblais à l'intérieur du tubage 30. Lorsque l'on veut provoquer l'éjection des déblais forés par la tarière inférieure 56, il est possible de commander la mise en rotation de la tarière supérieure 50 dans un sens opposé à celui de la tarière inférieure 56, ce qui favorise bien sûr l'éjection des déblais vers la paroi interne du forage. Bien entendu, dans ces conditions, l'extrémité inférieure de la tarière supérieure 50 doit être disposée en dessous du bord inférieur 30b du tubage.In this second embodiment of the drilling device, in normal operation, the lower auger 56 is used to drill the ground and to feed the upper auger 50, this making the cuttings penetrate inside the casing 30. When one wants to cause the ejection of the cuttings drilled by the lower auger 56, it is possible to control the setting rotation of the upper auger 50 in a direction opposite to that of the lower auger 56, which of course promotes the ejection of cuttings towards the inner wall of the borehole. Of course, under these conditions, the end lower of the upper auger 50 must be arranged below the lower edge 30b of the casing.

    Lorsque l'ensemble du dispositif de forage a été extrait du sol et que l'on veut procéder au vidage des déblais contenus dans le tubage 30, on commande la descente des tarières 50 et 56 de telle manière que l'extrémité supérieure 50a de la tarière supérieure 50 soit disposée largement en dessous du bord inférieur 30b du tubage. On obtient ainsi un écoulement aisé des déblais contenus dans le tubage. Cet écoulement peut être favorisé par la mise en rotation de la tarière supérieure 50 et de ses pales discontinues 36.When the entire drilling rig has been removed from the ground and that we want to empty the cuttings contained in the casing 30, the augers 50 and 56 are lowered so that the upper end 50a of the upper auger 50 is disposed well below the lower edge 30b of the casing. We thus obtain easy flow of the cuttings contained in the casing. This flow can be favored by the rotation of the upper auger 50 and its discontinuous blades 36.

    En outre, afin de favoriser la remontée des déblais à l'intérieur du tubage 30, il est possible de munir la face interne du tubage, au moins dans sa partie inférieure, de reliefs, par exemple des cannelures pour freiner la périphérie des déblais contenus dans le tubage.In addition, in order to encourage the return of the cuttings inside of the casing 30, it is possible to provide the internal face of the casing, at least in its lower part, reliefs, for example grooves for brake the periphery of the cuttings contained in the casing.

    Comme le montre la figure 2a, l'outil de forage peut comporter également un tube d'injection 59 qui est monté mobile par des vérins 61 dans la tige 58 de la tarière inférieure 56. Comme cela est bien connu, ce tube 61 appelé en général "tube plongeur" permet d'injecter au fond du forage, au fur et à mesure de la remontée de l'outil, un coulis qui, mélangé ou non à une partie du sol excavé, sert à la réalisation d'une inclusion solide dans ce forage. Ce tube peut également servir à injecter à la partie inférieure du forage un coulis ou un béton, non mélangé aux déblais, pour réaliser un pieu moulé en coulis ou en béton.As shown in Figure 2a, the drilling tool can include also an injection tube 59 which is movably mounted by cylinders 61 in the rod 58 of the lower auger 56. As is well known, this tube 61 generally called "dip tube" allows to inject at the bottom of the drilling, as the tool rises, a grout which, mixed or not to part of the excavated soil, is used to achieve an inclusion solid in this drilling. This tube can also be used to inject the part lower of the drilling a grout or a concrete, not mixed with the cuttings, for make a pile molded with grout or concrete.

    Sur les figures 2b et 3, on a représenté deux exemples de systèmes pour immobiliser en rotation le tubage ou au moins pour limiter la rotation du tubage 30 sous l'effet des efforts résultant de la rotation de l'outil de forage et des déblais présents dans le tubage.In FIGS. 2b and 3, two examples of systems for immobilizing the casing in rotation or at least for limiting the rotation of the casing 30 under the effect of the forces resulting from the rotation of the drilling tool and cuttings present in the casing.

    Selon le mode de réalisation de la figure 2b, le système comprend deux bras 70 et 72 solidaires de la plate-forme 10. L'extrémité libre de chaque bras est équipée d'une portion de glissière 74 et 76.According to the embodiment of FIG. 2b, the system comprises two arms 70 and 72 integral with the platform 10. The end free of each arm is equipped with a portion of slide 74 and 76.

    Le tubage 30, au moins dans sa partie inférieure, est pourvu, sur sa face externe, de deux nervures verticales 78 et 79 qui s'étendent au moins sur la partie inférieure du tubage ou qui s'étendent sur toute la longueur de celui-ci et qui sont engagées dans les glissières 74 et 76.The casing 30, at least in its lower part, is provided, on its outer face, two vertical ribs 78 and 79 which extend at least on the lower part of the casing or which extend over the entire length thereof and which are engaged in the slides 74 and 76.

    Il va de soi que les bras 70 et 72 pourraient être remplacés par tout autre système de liaison rigide. De plus, ce système pourrait être solidaire de l'extrémité inférieure du mât 12 au lieu d'être solidaire de la plate-forme 10.It goes without saying that arms 70 and 72 could be replaced by any other rigid connection system. In addition, this system could be secured to the lower end of the mast 12 instead of being secured to the platform 10.

    Selon le mode de réalisation de la figure 3, les extrémités libres des bras 70 et 72 sont solidaires d'un manchon vertical 82 qui entoure le tubage 30. La face interne du manchon est munie de cannelures verticales ou reliefs analogues 82. La face externe du tubage 30, au moins dans sa partie inférieure ou sur toute sa longueur, est équipée de cannelures verticales 84 ou de reliefs analogues qui coopèrent avec les cannelures 82 du manchon 80.According to the embodiment of Figure 3, the free ends arms 70 and 72 are integral with a vertical sleeve 82 which surrounds the casing 30. The internal face of the sleeve is provided with grooves vertical or similar reliefs 82. The external face of the casing 30, at less in its lower part or over its entire length, is equipped with vertical grooves 84 or similar reliefs which cooperate with the grooves 82 of the sleeve 80.

    Claims (11)

    Dispositif de forage comprenant : des moyens de guidage en translation verticale (12), au moins un premier outil de forage (20) comprenant une première tarière (24) fixée à l'extrémité inférieure d'une première tige (22) de mise en rotation de ladite tarière, ladite tarière ayant une longueur (I1) un chariot (16) assujetti à se déplacer verticalement le long des moyens de guidage en translation verticale ; au moins une première tête de montage (18) solidaire dudit chariot et munie de moyens de mise en rotation de la tige dudit outil de forage ;    ledit dispositif se caractérisant en ce qu'il comprend en outre : un tubage (30) ayant la forme d'un cylindre à génératrices verticales, dont l'extrémité supérieure (30a) est solidaire de ladite tête de montage (18) et dont l'extrémité inférieure (30b) est ouverte, ledit tubage ayant une longueur (I2) très supérieure à la longueur (I1) de ladite tarière ; des moyens (54) pour déplacer en translation ladite tige de l'outil de forage par rapport à la tête de montage de telle manière que dans une première position rentrée, ladite tarière soit en partie logée dans ledit tubage et que dans une deuxième position sortie, ladite tarière soit entièrement disposée en dessous de l'extrémité inférieure dudit tubage ; et des moyens (40, 42) pour au moins limiter la rotation dudit tubage sous l'effet des contraintes qui lui sont appliquées. Drilling device comprising: means for guiding in vertical translation (12), at least a first drilling tool (20) comprising a first auger (24) fixed to the lower end of a first rod (22) for rotating said auger, said auger having a length (I 1 ) a carriage (16) subjected to move vertically along the guide means in vertical translation; at least a first mounting head (18) integral with said carriage and provided with means for rotating the rod of said drilling tool; said device being characterized in that it further comprises: a casing (30) in the form of a cylinder with vertical generators, the upper end (30a) of which is integral with the said mounting head (18) and the lower end (30b) of which is open, the said casing having a length (I 2 ) much greater than the length (I 1 ) of said auger; means (54) for translating said rod of the drilling tool in translation relative to the mounting head in such a way that in a first retracted position, said auger is partly housed in said casing and that in a second extended position , said auger is entirely disposed below the lower end of said casing; and means (40, 42) for at least limiting the rotation of said casing under the effect of the stresses which are applied to it. Dispositif selon la revendication 1, caractérisé en ce que lesdits moyens de limitation de rotation comprennent des reliefs (84) s'étendant sur toute la longueur de la face externe dudit tubage et une pièce de maintien (80), solidaire des moyens de guidage en translation verticale, munie de reliefs internes (82) aptes à coopérer avec les reliefs dudit tubage.Device according to claim 1, characterized in that said rotation limiting means include reliefs (84) extending over the entire length of the external face of said casing and a holding part (80), integral with the guiding means in translation vertical, provided with internal reliefs (82) able to cooperate with the reliefs of said casing. Dispositif selon l'une quelconque des revendications 1 et 2, caractérisé en ce qu'il comprend un seul outil de forage (20) et en ce que ladite tarière (24) comporte une partie inférieure dont le diamètre externe est au moins égal au diamètre externe dudit tubage. Device according to either of Claims 1 and 2, characterized in that it comprises a single drilling tool (20) and in that said auger (24) has a lower part whose external diameter is at least equal to the external diameter of said casing. Dispositif selon l'une quelconque des revendications 1 et 2, caractérisé en ce qu'il comprend en outre : un deuxième outil de forage comprenant une deuxième tarière (56) disposée en dessous de la première tarière (24) et une deuxième tige (58) de mise en rotation montée dans ladite première tige de mise en rotation qui est creuse ; une deuxième tête de montage (60) pour la mise en rotation dudit deuxième outil de forage ; et des moyens (62) pour déplacer en translation ladite deuxième tarière par rapport à ladite première tête de montage. Device according to either of Claims 1 and 2, characterized in that it further comprises: a second drilling tool comprising a second auger (56) disposed below the first auger (24) and a second spinning rod (58) mounted in said first hollow rotation rod; a second mounting head (60) for rotating said second drilling tool; and means (62) for moving said second auger in translation relative to said first mounting head. Dispositif selon la revendication 4, caractérisé en ce que lesdits moyens pour déplacer en translation ladite deuxième tarière (56) comprennent des moyens pour déplacer en translation ladite deuxième tige (58) de mise en rotation par rapport à ladite première tête de montage (18).Device according to claim 4, characterized in that said means for translating said second auger (56) include means for translating said second rod (58) for rotating relative to said first head of mounting (18). Dispositif selon l'une quelconque des revendications 4 et 5, caractérisé en ce que les moyens pour déplacer en translation ladite deuxième tarière (56) comprennent des moyens pour déplacer en translation ladite deuxième tête de montage (60) par rapport audit chariot (16).Device according to any one of claims 4 and 5, characterized in that the means for moving said translation in translation second auger (56) includes means for moving in translation of said second mounting head (60) relative to said carriage (16). Dispositif selon l'une quelconque des revendications 4 à 6, caractérisé en ce que lesdites première (18) et deuxième (60) têtes de montage comportent des moyens pour provoquer la rotation des première et deuxième tarières (24, 56) dans des sens opposés.Device according to any one of Claims 4 to 6, characterized in that said first (18) and second (60) heads mounting include means for causing rotation of the first and second augers (24, 56) in opposite directions. Dispositif selon l'une quelconque des revendications 1 à 7, caractérisé en ce que ledit premier outil de forage (20) comporte en outre des pales (36) séparées solidaires de ladite première tige (22) de mise en rotation et disposées au-dessus de ladite première tarière (24).Device according to any one of Claims 1 to 7, characterized in that said first drilling tool (20) further comprises separate blades (36) integral with said first setting rod (22) rotation and arranged above said first auger (24). Dispositif selon l'une quelconque des revendications 1 à 8, caractérisé en ce que ladite première tarière (24) est du type à âme variable.Device according to any one of Claims 1 to 8, characterized in that said first auger (24) is of the core type variable. Dispositif selon l'une quelconque des revendications 1 à 9, caractérisé en ce qu'il comprend en outre un tube (59) d'injection de béton ou de coulis monté mobile dans la tige (22, 58) de mise en rotation de ladite tarière ou de l'une desdites tarières. Device according to any one of Claims 1 to 9, characterized in that it further comprises a concrete injection tube (59) or grout mounted mobile in the rod (22, 58) for rotating said auger or one of said augers. Dispositif selon l'une quelconque des revendications 1 à 10, caractérisé en ce que ledit tubage (30) comporte sur sa face interne des aspérités s'étendant sur au moins une partie de sa longueur.Device according to any one of Claims 1 to 10, characterized in that said casing (30) has on its internal face roughness extending over at least part of its length.
    EP00402880A 1999-11-04 2000-10-18 Auger drilling device Withdrawn EP1098064A1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR9913793A FR2800796B1 (en) 1999-11-04 1999-11-04 AUGER TYPE DRILLING DEVICE
    FR9913793 1999-11-04

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    GB2365037B (en) * 2000-07-20 2004-09-08 Kvaerner Cementation Found Ltd Cased rotary hole forming tool
    CN108843324A (en) * 2018-07-26 2018-11-20 葛冬兴 A kind of mine barren material mining device
    CN108979550A (en) * 2018-07-26 2018-12-11 葛冬兴 A kind of mining high-efficiency drilling equipment
    CN110080684A (en) * 2019-05-08 2019-08-02 永康微唯智能科技有限公司 A kind of support protecting apptss of drilled pile
    US10995563B2 (en) 2017-01-18 2021-05-04 Minex Crc Ltd Rotary drill head for coiled tubing drilling apparatus
    CN113685142A (en) * 2021-08-10 2021-11-23 上海天淼建设工程有限公司 Cast-in-situ bored pile construction equipment and method thereof
    CN113982482A (en) * 2021-11-17 2022-01-28 武威 Highway bridge construction drilling platform
    CN115306335A (en) * 2022-08-09 2022-11-08 福建省岩田基建工程技术有限公司 Rotary impact anchor hole drilling equipment capable of automatically processing residual rock debris

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    US3565190A (en) * 1968-03-07 1971-02-23 Sanwa Kizai Co Ltd Auger-type boring machines
    DE2817017A1 (en) * 1978-04-19 1979-11-15 Celler Maschf Geb Horizontal drilling unit for advancing underground pipes - has paired pistons and cylinders, worm-gear and drive shafts in one plane
    GB2133821A (en) * 1983-01-19 1984-08-01 Shuntaro Shiga An obstacle-ground earth auger and an in-line engineering method for excavating the obstacle ground
    US5104263A (en) * 1988-10-05 1992-04-14 Sekisui Kagaku Kogyo Kabushiki Kaisha Underground pipe for a thrust boring method and a connecting construction of the underground pipe for the same
    FR2641016A1 (en) * 1988-12-26 1990-06-29 Morillon Corvol Courbot Public works machine which can be used in particular for installing posts

    Cited By (12)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    GB2365037B (en) * 2000-07-20 2004-09-08 Kvaerner Cementation Found Ltd Cased rotary hole forming tool
    EP1279793A1 (en) * 2001-07-26 2003-01-29 Beheersmaatschappij Verstraeten B.V. Drill head
    US10995563B2 (en) 2017-01-18 2021-05-04 Minex Crc Ltd Rotary drill head for coiled tubing drilling apparatus
    US11136837B2 (en) 2017-01-18 2021-10-05 Minex Crc Ltd Mobile coiled tubing drilling apparatus
    CN108843324A (en) * 2018-07-26 2018-11-20 葛冬兴 A kind of mine barren material mining device
    CN108979550A (en) * 2018-07-26 2018-12-11 葛冬兴 A kind of mining high-efficiency drilling equipment
    CN110080684A (en) * 2019-05-08 2019-08-02 永康微唯智能科技有限公司 A kind of support protecting apptss of drilled pile
    CN113685142A (en) * 2021-08-10 2021-11-23 上海天淼建设工程有限公司 Cast-in-situ bored pile construction equipment and method thereof
    CN113685142B (en) * 2021-08-10 2024-04-12 上海天淼建设工程有限公司 Bored pile construction equipment and method thereof
    CN113982482A (en) * 2021-11-17 2022-01-28 武威 Highway bridge construction drilling platform
    CN115306335A (en) * 2022-08-09 2022-11-08 福建省岩田基建工程技术有限公司 Rotary impact anchor hole drilling equipment capable of automatically processing residual rock debris
    CN115306335B (en) * 2022-08-09 2023-05-12 福建省岩田基建工程技术有限公司 Rotary impact anchor hole drilling equipment capable of automatically treating residual rock debris

    Also Published As

    Publication number Publication date
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    FR2800796A1 (en) 2001-05-11

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