EP3392449B1 - Dispositif de forage et procédé de forage dans le sol - Google Patents
Dispositif de forage et procédé de forage dans le sol Download PDFInfo
- Publication number
- EP3392449B1 EP3392449B1 EP17167012.8A EP17167012A EP3392449B1 EP 3392449 B1 EP3392449 B1 EP 3392449B1 EP 17167012 A EP17167012 A EP 17167012A EP 3392449 B1 EP3392449 B1 EP 3392449B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- auger
- drilling
- rotary base
- drilling device
- rotary
- 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.)
- Active
Links
- 238000005553 drilling Methods 0.000 title claims description 89
- 238000000034 method Methods 0.000 title claims description 11
- 239000002689 soil Substances 0.000 title description 13
- 239000000463 material Substances 0.000 claims description 26
- 230000000903 blocking effect Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 claims description 2
- 244000273618 Sphenoclea zeylanica Species 0.000 claims 3
- 238000000605 extraction Methods 0.000 claims 1
- 230000007246 mechanism Effects 0.000 description 4
- 239000000945 filler Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- -1 gravel Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000004162 soil erosion Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/003—Drilling with mechanical conveying means
- E21B7/005—Drilling with mechanical conveying means with helical conveying means
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
Definitions
- the invention relates to a drilling device for producing a bore in the ground with a drilling screw, which is rotationally driven and has at least one drill spiral, which runs along a central core tube, a drill pipe which is independent of the auger drivable and at least partially surrounds the auger, and a rotary bottom which is rotatably disposed at a lower portion of the auger and is adjustable between a drilling position in which a passage for soil material to the drilling helix is open, and a closing position in which the passage is closed, according to the preamble of claim 1.
- the invention further relates to a method for producing a bore in the ground with a drilling device in which a drill screw with at least one drill spiral is rotationally driven to create a borehole in the ground, a drill pipe which surrounds the drill screw at least in sections, driven independently of the auger rotation is moved, a rotary bottom at the bottom of the auger in the drilling operation in a drilling position, wherein a passage is opened, passes through which soil material to the drill spiral, and the rotary bottom is moved when pulling the drilling device from the ground in a closed position, in which the rotary bottom is closed, according to the preamble of claim 14.
- Such a drilling method is also referred to as double-head drilling.
- Such a drilling device and such a drilling process go out of the DE 103 59 103 A1 out.
- the double-head drilling is used in particular on loose soils, with the drill pipe surrounding the drill bit supporting the surrounding soil.
- Upon reaching the desired final depth of a passage at the bottom of the auger is closed with a rotary bottom. This prevents that when pulling the drilling device drilled soil material from the drilling helices falls back into the wellbore.
- filling material is introduced into the borehole through which the borehole wall is also supported.
- the DE 103 59 103 A1 teaches a drilling device with auger and drill pipe, in which a rotary floor via a separate drive element, in particular a hydraulic cylinder or a motor, can be opened and closed.
- a drilling bucket with a rotating floor goes out of the EP 2 740 882 A1 out.
- the invention has for its object to provide a drilling apparatus and a drilling method for producing a bore, with which the bore is particularly reliable and efficient to produce.
- the drilling apparatus is characterized in that for adjusting the rotary bottom, the auger and the drill pipe are axially adjustable between a first stroke position and a second stroke position that is arranged in the first stroke position of the rotary bottom in the drilling position with an open passage that in the second Stroke position of the rotary bottom is arranged in a closed position with closed passage and that a control is provided and designed, which indicates a device operator, whether the auger in the first or the second stroke position and / or the rotary bottom is in the closed position.
- a basic idea of the invention can be seen in that the rotary bottom in the drilling position and in the blocking position is in a different axial stroke position relative to the surrounding drill pipe.
- An adjustment of the rotary bottom between the open drilling position and the closing position requires both a rotational movement and an axial stroke movement. This counteracts an unintentional opening of the rotary bottom, for example when pulling the drilling device out of the borehole and an associated fallback of soil material into the borehole.
- a further aspect of the invention is that a control is provided, which ensures that the auger in the first or second stroke position and / or the rotary bottom is in the closed position.
- the controller can preferably indicate this to a device operator by means of a warning signal or intervene directly in the course of the drilling process and possibly interrupt it.
- the control is set so that the rotary bottom is in the closed position when the auger is pulled upwards. This prevents that drilled soil material falls back into the region of the bore and there flaws, such as in the inflowing filler material forms.
- a locking device is provided with at least one axially adjustable locking element, with which the rotary bottom against the auger can be locked.
- the at least one locking element is in particular axially adjustable, so that a particularly high security against rotation is achieved.
- a plurality of locking elements may be provided, wherein preferably the rotary bottom is additionally fixed both in its closed position and in the open drilling position by means of a locking element.
- the locking element can be mounted on the rotary bottom.
- the at least one locking element is mounted so as to be axially displaceable on the auger.
- the pin or rod-shaped locking element is aligned substantially parallel to the drilling or rotation axis of the drilling device.
- the at least one locking element between a release position in which the rotary bottom is rotatable relative to the auger, and a locking position is adjustable, in which engages the at least one locking element in a locking recess, the rotary bottom relative locked to the auger rotatably.
- the locking recess is arranged on the component, which is opposite to the at least one locking element.
- the locking recess is arranged on the rotary bottom, wherein the locking element is slidably mounted on the auger.
- a further preferred embodiment of the invention is that sensors for detecting the position of the auger, the drill pipe and / or the rotary bottom are provided.
- the sensors may be of any design, such as mechanical buttons, optically operating sensors or in any other suitable manner. This can be additionally verified by the controller, whether the auger, the drill pipe, the rotary floor or other parts in the intended position, in particular a closure position, are located.
- the control can also determine a drilling position of the respective parts by direct monitoring of the rotary drives and / or of the axial drives. Depending on the detected status, it can be displayed as to whether there is an open position or a locked position of the rotary bottom.
- an optical and / or acoustic display device in particular a screen, which communicates with the controller.
- a screen various data on the condition of the parts of the drilling tool can be displayed in a particularly flexible manner.
- a graphical representation of the components is possible, so that the respective state is detected particularly quickly by inexperienced device driver.
- the display device can also consist of a simple signal lamp or a signal tone dispenser, by means of which the respective closure state can be visually or acoustically displayed.
- the locking element can be suitably adjusted by a drive or a mechanism.
- a separate actuator such as an axially acting actuator cylinder.
- a particularly effective embodiment of the invention is that on the at least one locking element, an actuating plate is arranged, which comes to move the locking element with an actuating cam into engagement, which is arranged on an inner side of the drill pipe.
- the locking element can be adjusted in the closed position.
- a reset of the locking element can also be done by an actuating cam.
- a provision can also be made via a return spring or in any other suitable manner.
- the locking element can be designed as desired. It is particularly advantageous according to a development of the invention that the locking element is formed substantially cylindrical. In this case, the locking element can be stored in corresponding bushings, which are easily available.
- the invention is preferably further developed according to a further embodiment, that along the inner circumference of the drill pipe at least one inclined guide rail is arranged, which cooperates with the axial displacement of the first stroke position in the second stroke position with at least one cam element on the rotary bottom, the rotary bottom in the shutter position is rotatable.
- a cam-cam follower mechanism provided by which the axial lifting movement is converted into an at least partial rotational movement of the rotary bottom.
- the radially directed blocking element is at the same time the cam element.
- it may also be provided as a separate cam element, which is provided with a friction-reducing device, such as a roller.
- the guide bar can pass into a part of the locking device.
- a kinematic reversal is possible, wherein the cam element is then provided on the radially inner side of the drill pipe and a guide strip on the drill spiral.
- a preferred embodiment of the invention also consists in that the core tube of the auger has at least one outlet opening for a hardenable filling material in a lower region.
- the filler in particular concrete or other hardenable mass or other pourable filling material, such as sand, gravel, gypsum, etc. can be introduced when pulling the drill pipe in the liberated borehole.
- the filler in particular concrete or other hardenable mass or other pourable filling material, such as sand, gravel, gypsum, etc. can be introduced when pulling the drill pipe in the liberated borehole.
- the support of the borehole can be taken directly by the contents.
- the contents can harden immediately or after addition of another additive to the bored pile.
- a particularly compact arrangement is achieved according to an embodiment of the invention in that the rotary bottom is rotatably mounted on a lower end of the core tube and that are arranged on a bottom of the rotary bottom Bodenabtragswerkmaschinemaschinee.
- the soil erosion tools can be chisels or erosion teeth.
- a pilot can Centering tip or other Abtragsm facedeln be arranged.
- the outlet opening for the filling material is located below the rotary base, so that the filling material can emerge from the tube when the rotary floor is closed.
- the invention further relates to a drilling apparatus for producing a bored pile in a ground with a carrier device and a mast arranged on the carrier device, wherein according to the invention the drilling device described above is provided.
- a drilling device can be used which, except for the drilling device according to the invention, is designed like a conventional drilling device for double-head drilling.
- a preferred embodiment of the drill according to the invention is that a lifting device is provided, with which the auger is axially adjustable relative to the drill pipe.
- the lifting device may preferably have at least one actuating cylinder, in particular a hydraulic cylinder, through which an axial stroke movement between auger and drill pipe is executable.
- the lifting device has two or more actuating cylinders.
- the lifting device can be controlled by the operator of the drill, preferably a simple adjusting knob is provided.
- a first rotary drive for the auger and a second rotary drive for the drill pipe are arranged axially adjustable on the mast.
- the rotary actuators are preferably hydraulic drives, which are preferably movable along the mast by means of adjusting cylinders or cable pull mechanisms.
- the axial travel drives for the two rotary drives can also be used to adjust the stroke to move drill pipe and auger axially to each other.
- the lifting device is arranged between the first rotary drive and the second rotary drive.
- the one or more actuating cylinders are arranged between the two rotary drives, so that the rotary actuators are moved in a simple manner between the first stroke position and the second stroke position relative to each other can.
- the first rotary drive can be axially fixed to the auger and the second rotary drive axially fixed to the drill pipe.
- the invention is characterized in that for adjusting the rotary bottom, the auger and the drill pipe are axially displaced from each other between a first stroke position and a second stroke position, that is in the first stroke position of the rotary bottom in the drilling position with an open passage that in the second stroke position of the rotary bottom is moved to a closed position and that is displayed by means of a controller to a device operator, whether the auger in the first or second stroke position and / or the rotary bottom is in the closed position.
- the drilling device described above or the drilling device described above can be used.
- the advantages described above can be achieved with the method according to the invention.
- the method can be used exclusively for drilling holes in the ground.
- a preferred embodiment of the invention is that the bore is filled with a filling material, through which a bored pile is formed in the ground.
- the filler material can harden in the bore to the bored pile.
- a reinforcement can be inserted before or after filling the bore in this.
- FIG Fig. 1 A drill 10 with a drilling device 20 according to the invention is shown in FIG Fig. 1 shown.
- the drill 10 has a carrier device 12 with a crawler track and a rotatable superstructure, on which a vertical mast 14 is arranged.
- a first rotary drive 15 and a second rotary drive 16 are mounted vertically displaceable and movable by means of a cable mechanism 19 in a known manner.
- the first rotary drive 15 is connected to a auger 22 of the drilling device 20 to drive the auger 22 rotationally.
- an outer drill pipe 30 of the drilling device 20 is rotatably connected to a second rotary drive 16. Drilling screw 22 and drill pipe 30 can be independently driven in terms of speed and direction and torque.
- the rotary actuators 15, 16 are each independently supported axially displaceable on slides, wherein between the two rotary actuators 15, 16 a lifting device 18 is shown only schematically.
- the lifting device 18, which has at least one hydraulic cylinder the first rotary drive 15 can be adjusted relative to the second rotary drive 16 axially by a defined stroke.
- the auger 22 of the drilling device 20 has a central core tube 26 along the circumference of a conveyor coil 24 is arranged for conveying processed soil material.
- FIG Fig. 2 A lower end of a drilling device 20 according to the invention is shown in FIG Fig. 2 shown.
- a lower annular cutter 32 is releasably arranged with a plurality of downwardly directed Abtragszähnen 34.
- the auger 22 is rotatably arranged with a central core tube 26 and the only partially recognizable drill spiral 24.
- a rotary bottom 40 which consists essentially of a rotatably mounted plate 42 with two lateral, opposite V-shaped recesses 46.
- the two recesses 46 in the plate 42 form an open passage through which processed by the Bodenabtragswerkmaschineen 48 soil material in the interior of the drill pipe 30 and can be transported over the at least one drill bit 24 upwards.
- On the outer periphery of the plate 42 more chisel 49 are arranged for removing the soil.
- a radially directed locking device 50 is detachably mounted in a radial outer region of the rotary bottom 40 via a respective U-shaped holder.
- a pilot tip 44 is provided in a central region of the rotary bottom 40, which is also provided with a plurality of Abtragsm faced.
- FIGS. 3 and 4 The structure of the lower portion of the drilling device 20 with the rotary bottom 40 is further in the FIGS. 3 and 4 clarified.
- the plate 42 of the rotary bottom 40 Via a central pivot bearing 43, the plate 42 of the rotary bottom 40 is rotatably mounted about a center axis of the drilling device 20.
- the radially directed outer locking elements 51 of the locking device 50 reach the rotary bottom 40 in the circumferential direction in engagement with the radially inwardly projecting locking stops 60, which are screwed radially projecting from an outer side of the drill pipe 30 inwardly.
- the radially directed outer locking elements 51 of the locking device 50 reach the rotary bottom 40 in the circumferential direction in engagement with the radially inwardly projecting locking stops 60, which are screwed radially projecting from an outer side of the drill pipe 30 inwardly.
- second stroke position of the rotary bottom 40 is rotated by about 90 ° to a fixed end plate 28 at the lower end of the auger 22, so that the passages are closed in the interior of the drill pipe 30.
- this closed position the drilling device 20 are withdrawn axially from the borehole without the risk that drilled soil material from the boring helix 24 may fall back into the borehole.
- an outlet opening, not shown, for a filling material is opened at the same time, wherein via a conduit 27 in the interior of the core tube 26 filling material, such as concrete, when retracting the drilling device 20 can be passed into the well.
- Fig. 5 is clearly shown how the radially outwardly directed stop member 80 comes to the outer periphery of the rotary bottom 40 for blocking a rotational movement with the radially projecting from the inner wall of the drill pipe 30 locking stopper 60 in contact.
- FIGS. 6 and 7 a lock of the rotary bottom 40 is illustrated.
- the auger 22 has a lower end plate 28 with two V-shaped recesses 46.
- the rotary bottom 40 is rotatably mounted with a plate 42 on the underside of the end plate 28.
- the rotary bottom 40 is arranged so that it is in an open position.
- a substantially cylindrical locking element 52 is arranged vertically on the auger 22 and axially displaceably mounted in an upper first sliding sleeve 53 and a lower second sliding sleeve 55.
- the two sliding sleeves 53, 55 are axially spaced from each other, wherein in the intermediate region on the locking element 52, an approximately horizontally oriented actuator plate 56 is attached. This can via an actuating cam on the inside of the drill pipe, which in the FIGS. 6 and 7 is not shown, are acted upon so that the locking element 52 from the unlocked position according to Fig. 6 in a locked position according to Fig. 7 is moved.
- the locking element 52 can also be used as a sensor, by means of which the control can determine that, when the locking element 52 has been extended downwards, the rotary bottom 40 is in an opened state, as in FIG Fig. 7 is shown.
- 52 corresponding buttons may be provided on the locking element, which determine the axial position of the locking element 52 and wired to the control or forward wirelessly.
- FIGS. 8a to 8c the process of opening the rotary bottom 40 is illustrated schematically.
- a zero position of the rotary bottom 40 is shown, in which the rotary bottom 40 is in a closed position.
- This is a cam on a cone screw.
- a beginner To turn clockwise on a next cone screw, a beginner must be turned 161 ° to the right.
- a position is shown in which a rotation of 161 ° from the zero position is done.
- a cam is applied to the next cone screw, provided that the rotary bottom 40, as shown, is still completely closed.
- For a complete opening of the rotary bottom 40 must be made a further rotation by 70 ° to the right.
- Fig. 8c now the open position is shown, in which a beginner has been rotated by 231 ° to the right from the zero position to move from the fully closed state to a fully open state. From this position a retraction into a locking area is possible.
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Claims (15)
- Dispositif de forage pour la réalisation d'un forage dans le sol comportant :- une vis sans fin de forage (22), laquelle peut être entraînée en rotation et présente au moins une hélice de forage (24), laquelle s'étend le long d'un tube d'âme (26) central,- un tube de forage (30), lequel peut être entraîné en rotation indépendamment de la vis sans fin de forage (22) et entoure au moins par section la vis sans fin de forage (22), et- un plateau rotatif (40), lequel est agencé en rotation au niveau d'une zone inférieure de la vis sans fin de forage (22) et est réglable entre une position de forage, dans laquelle un passage pour matériau de sol jusqu'à l'hélice de forage (24) est ouvert, et une position de fermeture, dans laquelle le passage est fermé,caractérisé en ce que
pour le réglage du plateau rotatif (40), la vis sans fin de forage (22) et le tube de forage (30) sont réglables axialement l'un par rapport à l'autre entre une première position de levage et une seconde position de levage,
en ce que dans la première position de levage, le plateau rotatif (40) est agencé dans la position de forage avec passage ouvert,
en ce que dans la seconde position de levage, le plateau rotatif (40) est agencé dans sa position de fermeture avec passage fermé et
en ce qu'une commande est prévue et réalisée, laquelle affiche à un opérateur de l'appareil si la vis sans fin de forage (22) se trouve dans la première ou la seconde position de levage et/ou si le plateau rotatif (40) se trouve dans la position de fermeture. - Dispositif de forage selon la revendication 1,
caractérisé en ce que
un dispositif de blocage (50) avec au moins un élément de verrou (52) axialement réglable est prévu, avec lequel le plateau rotatif (40) est verrouillable par rapport à la vis sans fin de forage (22). - Dispositif de forage selon la revendication 2,
caractérisé en ce que
l'au moins un élément de verrou (52) est réglable entre une position de libération, dans laquelle le plateau rotatif (40) est rotatif par rapport à la vis sans fin de forage (22), et une position de blocage, dans laquelle l'au moins un élément verrou (52) entre en prise dans un évidement de blocage (54), dans lequel le plateau rotatif (40) est verrouillé solidairement en rotation par rapport à la vis sans fin de forage (22). - Dispositif de forage selon l'une des revendications 1 à 3,
caractérisé en ce que
des capteurs sont prévus pour la détection des positions de la vis sans fin de forage (22), du tube de forage (30) et/ou du plateau rotatif (40). - Dispositif de forage selon l'une des revendications 1 à 4,
caractérisé en ce que
un dispositif d'affichage optique et/ou acoustique, en particulier un écran, est prévu, lequel communique avec la commande. - Dispositif de forage selon l'une des revendications 1 à 5,
caractérisé en ce que
au moins une barre de guidage oblique, laquelle coopère lors du réglage axial de la première position de levage à la seconde position de levage avec au moins un élément de came au niveau du plateau rotatif (40), est agencée le long de la périphérie intérieure du tube de forage (30), le plateau rotatif (40) pouvant tourner dans la position de fermeture. - Dispositif de forage selon l'une des revendications précédentes,
caractérisé en ce que
le tube d'âme (26) de la vis sans fin de forage (22) présente dans une zone inférieure au moins une ouverture de sortie pour un matériau de remplissage. - Dispositif de forage selon la revendication 7,
caractérisé en ce que
dans la première position de levage, l'ouverture de sortie pour le matériau de remplissage est fermée et
que dans la seconde position de levage, l'ouverture de sortie pour le matériau de remplissage est ouverte. - Dispositif de forage selon l'une des revendications précédentes,
caractérisé en ce que
le plateau rotatif (40) est logé en rotation au niveau d'une extrémité inférieure du tube d'âme (26) et
en ce que des outils d'évacuation de sol (48) sont agencés au niveau d'un côté inférieur du plateau rotatif (40). - Appareil de forage pour la réalisation d'un pieu foré dans un sol comportant un appareil porteur (12) et un mât (14) agencé sur l'appareil porteur (12),
caractérisé en ce que
un dispositif de forage (20) selon l'une des revendications précédentes est prévu. - Appareil de forage selon la revendication 10,
caractérisé en ce que
un dispositif de levage (18) est prévu, avec lequel la vis sans fin de forage (22) est réglable axialement par rapport au tube de forage (30). - Appareil de forage selon la revendication 10 ou 11,
caractérisé en ce que
un premier entraînement rotatif (15) pour la vis sans fin de forage (22) et un second entraînement rotatif (16) pour le tube de forage (30) sont agencés axialement réglables au niveau du mât (14). - Appareil de forage selon la revendication 12,
caractérisé en ce que
le dispositif de levage (18) est agencé entre le premier entraînement rotatif (15) et le second entraînement rotatif (16). - Procédé pour la réalisation d'un forage dans le sol avec un dispositif de forage (20), en particulier selon l'une des revendications 1 à 9, dans lequel- pour la réalisation d'un trou de forage dans le sol, une vis sans fin de forage (22) avec au moins une hélice de forage (24) est entraînée en rotation,- un tube de forage (30), lequel entoure au moins par section la vis sans fin de forage (22), est entraîné en rotation indépendamment de la vis sans fin de forage (22),- un plateau rotatif (40) est réglé dans une position de forage au niveau de l'extrémité inférieure de la vis sans fin de forage (22) en mode de forage, dans lequel un passage est ouvert, par lequel du matériau de sol arrive jusqu'à l'hélice de forage (24), et- le plateau rotatif (40) est réglé lors de l'extraction du dispositif de forage (20) du sol dans une position de fermeture, dans laquelle le passage est fermé,caractérisé en ce que
pour le réglage du plateau rotatif (40), la vis sans fin de forage (22) et le tube de forage (30) sont réglés axialement l'un par rapport à l'autre entre une première position de levage et une seconde position de levage,
en ce que dans la première position de levage, le plateau rotatif (40) se trouve dans la position de forage avec passage ouvert,
en ce que dans la seconde position de levage, le plateau rotatif (40) est réglé dans sa position de fermeture et
en ce qu'il est affiché à un opérateur de l'appareil au moyen d'une commande si la vis sans fin de forage (22) se trouve dans la première ou la seconde position de levage et/ou si le plateau rotatif (40) se trouve dans la position de fermeture. - Procédé selon la revendication 14,
caractérisé en ce que
le forage est rempli d'un matériau de remplissage, par lequel un pieu foré est formé dans le sol.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP17167012.8A EP3392449B1 (fr) | 2017-04-19 | 2017-04-19 | Dispositif de forage et procédé de forage dans le sol |
PCT/EP2018/054346 WO2018192701A1 (fr) | 2017-04-19 | 2018-02-22 | Dispositif de forage et procédé de forage pour la réalisation d'un forage dans le sol |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP17167012.8A EP3392449B1 (fr) | 2017-04-19 | 2017-04-19 | Dispositif de forage et procédé de forage dans le sol |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3392449A1 EP3392449A1 (fr) | 2018-10-24 |
EP3392449B1 true EP3392449B1 (fr) | 2019-09-18 |
Family
ID=58578890
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17167012.8A Active EP3392449B1 (fr) | 2017-04-19 | 2017-04-19 | Dispositif de forage et procédé de forage dans le sol |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3392449B1 (fr) |
WO (1) | WO2018192701A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4015766A1 (fr) | 2020-12-21 | 2022-06-22 | BAUER Spezialtiefbau GmbH | Outil de génie civil et procédé de génie civil |
Family Cites Families (4)
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FR2832438B1 (fr) | 2001-11-20 | 2004-10-22 | Durmeyer Entrp Travaux Publics | Tariere pour la realisation de trous fores et/ou betonnes et procedes mettant en oeuvre ladite tariere |
DE10359103B4 (de) | 2003-12-17 | 2006-04-27 | Bauer Spezialtiefbau Gmbh | Vorrichtung zur Herstellung von Bohrpfählen |
DE502006001852D1 (de) | 2006-08-23 | 2008-11-27 | Bauer Maschinen Gmbh | Verfahren und Vorrichtung zum Erstellen einer Bohrung im Boden |
US20150101082A1 (en) | 2012-04-23 | 2015-04-09 | Ariel-University Research And Development Company, Ltd. | Processing seeds by cold plasma treatment to reduce an apparent contact angle of seeds coat surface |
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2017
- 2017-04-19 EP EP17167012.8A patent/EP3392449B1/fr active Active
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2018
- 2018-02-22 WO PCT/EP2018/054346 patent/WO2018192701A1/fr active Application Filing
Non-Patent Citations (1)
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4015766A1 (fr) | 2020-12-21 | 2022-06-22 | BAUER Spezialtiefbau GmbH | Outil de génie civil et procédé de génie civil |
WO2022135794A1 (fr) | 2020-12-21 | 2022-06-30 | Bauer Spezialtiefbau Gmbh | Outil de génie civil et procédé de génie civil |
Also Published As
Publication number | Publication date |
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EP3392449A1 (fr) | 2018-10-24 |
WO2018192701A1 (fr) | 2018-10-25 |
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