EP3073044B1 - Dispositif de perçage de couche de recouvrement et procédé de perçage d'un noyau dans une couche de recouvrement - Google Patents

Dispositif de perçage de couche de recouvrement et procédé de perçage d'un noyau dans une couche de recouvrement Download PDF

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Publication number
EP3073044B1
EP3073044B1 EP16000701.9A EP16000701A EP3073044B1 EP 3073044 B1 EP3073044 B1 EP 3073044B1 EP 16000701 A EP16000701 A EP 16000701A EP 3073044 B1 EP3073044 B1 EP 3073044B1
Authority
EP
European Patent Office
Prior art keywords
drill bit
drilling
top layer
drilling head
drilling device
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
Application number
EP16000701.9A
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German (de)
English (en)
Other versions
EP3073044A1 (fr
Inventor
Sebastian Fischer
Elmar Koch
Andreas Joachim Hanses
Martin KÖPER
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.)
Tracto Technik GmbH and Co KG
Original Assignee
Tracto Technik GmbH and Co KG
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 Tracto Technik GmbH and Co KG filed Critical Tracto Technik GmbH and Co KG
Publication of EP3073044A1 publication Critical patent/EP3073044A1/fr
Application granted granted Critical
Publication of EP3073044B1 publication Critical patent/EP3073044B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E21B10/00—Drill bits
    • E21B10/02—Core bits
    • 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
    • E21B10/64—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe
    • 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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/006—Mechanical motion converting means, e.g. reduction gearings
    • 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
    • E21B7/002—Drilling with diversely driven shafts extending into the borehole
    • 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
    • E21B7/04—Directional drilling
    • E21B7/046—Directional drilling horizontal drilling

Definitions

  • the invention relates to a cover layer drilling device and a method for drilling a core into a cover layer.
  • a pit is usually created which extends at an angle, in particular close to 90 °, from the surface of the ground into the ground.
  • the drilling device in particular a horizontal drilling device, is lowered into the pit, which can also be referred to as a construction pit or starting pit.
  • a horizontal drilling can then be carried out from the pit by means of the drilling device.
  • the pit in which the drilling device is to be positioned has a relatively small diameter.
  • Such a small pit is known in the context of trenchless laying and renewal of gas, water, electricity or data lines for house connections under the term "keyhole technology".
  • keyhole technology Especially in built-up areas where the soil is covered with a top layer, the surface work should be reduced to a minimum.
  • the keyhole technology there is less consequential surface damage and consequential costs, which are known from the open construction method.
  • the earthworks and surface work can be carried out more safely, to a reduced extent and more productively.
  • the creation of a horizontal bore in the ground using the keyhole technique is, for example, in DE 10 2010 013 725 A1 described.
  • DE 197 04 263 C1 discloses a drilling device with an inner rod and an outer rod extending coaxially to the inner rod.
  • the outer rod is part of an auger; the outer linkage is surrounded by a helical helix.
  • An inner drill bit is located at the front end of the inner rod.
  • an annular drill bit surrounding the inner drill bit is located at the front end of the inner drill bit and removes the area around the inner drill bit.
  • the invention was based on the object of creating an improved cover layer drilling device and a method for drilling a core in a cover layer, with which the creation of a pit can be carried out more efficiently, in particular the number of method steps can be reduced .
  • the core concept of the invention is the combination of the two steps of creating the circular cut, which were previously carried out as separate steps, and the subsequent step, which is carried out separately from this, of creating a bore within the circular cut.
  • the cover layer drilling device is designed in such a way that a drill head with a smaller diameter than that of the drill bit is arranged in a drill bit.
  • a drill core can be produced which can be placed on the filled pit again after the work has been completed.
  • the drill bit and drill head can be driven at different angular speeds, so that an optimal cutting speed can be selected for both cross-sections or holes to be created in the form of the circular cut with the drill bit and the drill head.
  • the term "angular velocity" relates to a rotation or rotation of the drill bit or the drill head about the respective longitudinal axis thereof.
  • Different drives which can be part of the surface layer drilling device according to the invention, can be provided for the drill head and drill bit.
  • the drill head and drill bit can be movable relative to one another.
  • the term “drill bit” includes a drill bit in the form of a hollow round chisel.
  • a “cover layer drilling device” is understood to mean, in particular, any core drill designed according to the invention for drilling into a cover layer.
  • the term “surface drilling device” can also include any device which moves a core drill from above the surface into a surface layer in order to create a pit for positioning a horizontal drilling device.
  • the term “cover layer” includes in particular the ceiling in the field of road construction, which is also referred to as a ceiling, road surface, road surface.
  • the cover layer can have a material that can be asphalt, mastic asphalt, asphalt concrete, stone mastic asphalt, asphalt binder course and / or concrete.
  • the top layer can also comprise a further layer, in particular a base layer, present between the top layer and a subgrade.
  • the drill bit according to the invention or the method is used to create a pit for an earth drilling device to be positioned therein for creating a channel in the ground.
  • the drill head which is arranged in the drill bit, is designed as a further drill bit, so that with the diameters of the drill head or the further drill bit usually provided according to the invention, less effort is required for drilling than for a full bore.
  • the drill head is preferably centered on the drill bit.
  • the outside diameter of the drill bit and the outside diameter of the drill head have a ratio in the range of approximately 2 to about 15, preferably in the range from about 4 to about 12, particularly preferably in the range from about 6 to about 10. Such proportions have proven to be particularly advantageous and are accordingly easy to handle and lead to good results.
  • the drill bit can have a rotational speed in the range from about 70 to about 200 revolutions per minute, preferably in the range from about 80 to about 180 revolutions per minute, particularly preferably in the range from about 85 to about 170 revolutions per minute.
  • the drill head can have a speed of rotation in the range from about 680 to about 1350 revolutions per minute, preferably in the range from about 700 to about 1300 revolutions per minute, particularly preferably in the range from about 750 to about 1280 revolutions per minute.
  • the cutting speeds are correlated with one another, so that in particular at a rotational speed of the drill head in the range from approximately 750 to approximately 1280 revolutions per minute, a rotational speed of the drill bit in the range from approximately 85 to approximately 170 revolutions per minute is present or can be set .
  • the drill bit and drill head have a cutting speed in the range from approximately 2 to approximately 6 m / s, in particular in the range from approximately 2.5 to approximately 5.5 m / s.
  • the stated rotational speeds are very particularly preferably correlated with the cutting speed.
  • the drill bit and drill head can be driven with a rotary drive having one or more gears, which means that one and the same rotary drive can be used to drive both the drill bit and the drill head (movable relative to one another) and thus no further drive has to be provided for the additional drill head.
  • different (rotary) drives i.e. one drive for the drill bit and one drive for the drill head, are provided for the rotating drive of the drill bit and drill head.
  • the gear or at least one of the gears can be a planetary gear, which enables a simple, inexpensive and, moreover, only a small installation space required design.
  • the planetary gear also allows through a suitable choice of the number of teeth and also through the exchange of the planetary gears, the sun gear and / or the ring gear with another Number of teeth to select the speed and torque for the drill bit and drill head adapted to the desired operating situation.
  • the planetary gear can comprise a sun gear and a ring gear as well as one or more planet gears.
  • Such planetary gears are known from the prior art and can have a structure in which the sun gear and the planetary gears are designed as gears with external teeth and the ring gear as an annular gear with at least one internal teeth.
  • the planet gears can be arranged between the sun gear and the ring gear and mesh with the corresponding toothing of these gears.
  • the planet gears can be connected to one another via a cage in order to enable the output of a rotary output connected to the cage via all planet gears.
  • the sun gear can be connected to the drill head and the drive designed as a rotary drive.
  • the ring gear can be fixed in a housing.
  • the planetary gear or gears can mesh with the driven sun gear and mesh with the stationary ring gear, as a result of which the planetary gear or planetary gears rotate with a planetary gear carrier in the same direction as the sun gear in a predetermined transmission ratio.
  • the planetary gear carrier can be connected to the drill bit by means of a connecting piece.
  • the drive can thus drive the sun gear directly.
  • the planetary gear or gears are driven indirectly by the drive via the sun gear.
  • one or more drives are provided for one or more planet gears, which are driven by means of them.
  • the at least one planet gear, in particular the planet carrier can be stationary.
  • the drive (s) for the planetary gear or the planetary gears can also be stationary.
  • the ring gear can be driven and a planetary gear carrier, which is stationary, is present.
  • the drill bit and drill head can be driven with different directions of rotation, so that the torques generated by the drill bit and drill head can at least partially cancel each other out.
  • a planetary gear an inherent different rotation of the drill bit and drill head can result in a corresponding advantage.
  • the invention also provides a method for drilling a core in a cover layer to create a pit, in particular for an earth drilling device, in particular a horizontal drilling device, according to claim 11.
  • the method comprises a step of drilling with a drill bit and drilling with another drill head smaller diameter than the drill bit during drilling with the drill bit, wherein the drill head and the drill bit are rotated or driven at different angular speeds.
  • the angular speed of the drill bit and / or drill head can thus be selected in such a way that an optimal cutting speed can be set for the drill bit as well as for the drill head.
  • the angular speed can be adapted to the diameter of the drill head and drill bit.
  • the material located under the cover layer in particular soil, can be flushed out of the pit to be created.
  • the term “during” encompasses a time range in which both the drill bit and the drill head are driven forward simultaneously in the cover layer.
  • a lead of the drill head in the cover layer can be provided, which can be followed by the time range in which both the drill bit and the drill head can be driven forward at the same time.
  • the drill bit and drill head can be driven with different directions of rotation, wherein the torques generated by the drill bit and drill head can at least partially cancel each other out.
  • a circular section through a cover layer can be produced in a simplified manner for producing a pit for an earth drilling device, in particular a horizontal drilling device.
  • the invention also provides for using a surface layer drilling device according to claim 13.
  • the single figure shows a surface layer drilling device with a drill bit 1 and a drill head 2.
  • the drill bit 1 is a crown drill in the form of a hollow round chisel designed.
  • the drill head 2 is also designed as a crown drill and is arranged within the drill bit 1.
  • the drill head 2 has a smaller diameter than the drill bit 1.
  • the drill bit 1 and the drill head 2 can be driven or moved relative to one another via a drive designed as a rotary drive.
  • the translation of drill bit 1 and drill head 2 in the vertical direction takes place simultaneously;
  • the drill bit 1 and the drill head 2 are lowered at the same time and the cover layer 3 shown in the figure is cut through or drilled at the same time.
  • a certain advance of the drill head 2 can enable the drill bit 1 to be centered.
  • a feed (not shown) and / or the weight of the surface layer drilling device can ensure the simultaneous lowering of the drill bit 1 and the drill head 2.
  • the drill bit 1 is connected to a connection piece 4.
  • the connection piece 4 is connected to a planet gear carrier 11, which receives one or more planet gears 8.
  • the drill head 2 is connected to a sun gear 6 by means of a connection piece 5.
  • the sun gear 6 is in turn connected to a (rotary) drive 9.
  • a ring gear 7 is seated in a housing 12.
  • a torque support 13 fastened to a frame (not shown) prevents the housing 12, and in particular the ring gear 8, from rotating at the same time.
  • the sun gear 6 and the connection piece 5 are designed as a hollow shaft, so that the drill bit 1 and the drill head 2 can be supplied with cooling or drilling means via a connection 10.
  • the drive 9 drives the sun gear 6 and the drill head 2 directly or indirectly.
  • the rotating sun gear 6 meshes with the planet gears 8, which in turn mesh with the stationary ring gear 7, whereby the planet gears 8 with the planet carrier 11 rotate in the same direction of rotation as the sun gear 6, but in a certain gear ratio, which in this embodiment is in the range of 8, rotates.
  • the drill bit 1 rotates together with the planetary gears 8 and the planetary gear carrier 11.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Earth Drilling (AREA)

Claims (13)

  1. Dispositif de forage de couche de recouvrement pour réaliser une fosse et pour réaliser une carotte, dans lequel le dispositif de forage de couche de recouvrement comprend un trépan (1) et une tête de forage (2) dans le trépan (1) avec un diamètre inférieur à celui du trépan (1) et le trépan (1) et la tête de forage (2) peuvent être entraînés à différentes vitesses angulaires, caractérisé en ce que, le diamètre intérieur du trépan (1) est espacé du diamètre extérieur de la tête de forage (2) de telle sorte que la carotte soit générée entre le trépan (1) et la tête de forage (2).
  2. Dispositif de forage de couche de recouvrement selon la revendication 1, caractérisé en ce que, la tête de forage (2) est réalisée sous la forme d'un autre trépan (1).
  3. Dispositif de forage de couche de recouvrement selon la revendication 1 ou 2, caractérisé en ce que, le diamètre extérieur du trépan (1) et le diamètre extérieur de la tête de forage (2) ont un rapport compris entre 2 et 15.
  4. Dispositif de forage de couche de recouvrement selon une des revendications 1 à 3, caractérisé en ce que, le trépan (1) et la tête de forage (2) peuvent être entraînés avec un entraînement (9) et un réducteur est disposé entre l'entraînement (9) et le trépan (1) et la tête de forage (2).
  5. Dispositif de forage de couche de recouvrement selon la revendication 4, caractérisé en ce que, le réducteur est un engrenage planétaire.
  6. Dispositif de forage de couche de recouvrement selon la revendication 5, caractérisé en ce que, l'engrenage planétaire comporte au moins un pignon planétaire (8) qui peut être entraîné au moyen de l'entraînement (9) et comporte une couronne fixe (7).
  7. Dispositif de forage de couche de recouvrement selon la revendication 6, caractérisé en ce que, le pignon solaire (6) de l'engrenage planétaire est relié à la tête de forage (2) et à l'entraînement (9) et le pignon planétaire (8) peut être entraîné indirectement par l'intermédiaire du pignon solaire (6) au moyen de l'entraînement (9).
  8. Dispositif de forage de couche de recouvrement selon la revendication 5, caractérisé en ce que, l'engrenage planétaire comporte au moins un pignon planétaire fixe (8), qui peut être entraîné au moyen de l'entraînement (9), et une couronne (7).
  9. Dispositif de forage de couche de recouvrement selon une des revendications 1 à 8, caractérisé en ce que, le trépan (1) et la tête de forage (2) peuvent être entraînés avec des sens de rotation différents.
  10. Dispositif de forage de couche de recouvrement selon une des revendications 1 à 9, caractérisé en ce qu'il existe au moins un entraînement (9), notamment pour chaque pignon planétaire (8).
  11. Procédé de réalisation d'une carotte dans une couche de recouvrement (3) et de réalisation d'une fosse comprenant une étape de forage avec un trépan (1) et de forage avec une tête de forage (2) disposée dans le trépan (1) d'un diamètre inférieur au trépan (1) pendant le forage avec le trépan (1), dans lequel la tête de forage (2) et le trépan (1) sont mis en rotation à différentes vitesses angulaires, caractérisé en ce que, le diamètre intérieur du trépan (1) est sélectionné à un espacement du diamètre extérieur de la tête de forage (2), de telle sorte que la carotte soit générée entre le trépan (1) et la tête de forage (2).
  12. Procédé selon la revendication 11, caractérisé par la rotation du trépan (1) et de la tête de forage (2) avec des sens de rotation différents.
  13. Utilisation d'un dispositif de forage de couche de recouvrement pour réaliser une carotte dans une couche de recouvrement (3) et pour réaliser une fosse, dans lequel le dispositif de forage de couche de recouvrement présente un trépan (1) et une tête de forage (2) disposée dans le trépan (1) d'un diamètre inférieur à celui du trépan (1) et le trépan (1) et la tête de forage (2) peuvent être entraînés à différentes vitesses angulaires, caractérisée en ce que, le diamètre intérieur du trépan (1) et le diamètre extérieur de la tête de forage (2) sont utilisés espacés de telle sorte que la carotte soit réalisée entre le diamètre intérieur du trépan (1) et le diamètre extérieur de la tête de forage (2).
EP16000701.9A 2015-03-27 2016-03-24 Dispositif de perçage de couche de recouvrement et procédé de perçage d'un noyau dans une couche de recouvrement Active EP3073044B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015003909.1A DE102015003909A1 (de) 2015-03-27 2015-03-27 Deckschichtbohrvorrichtung und Verfahren zum Bohren eines Kerns in eine Deckschicht

Publications (2)

Publication Number Publication Date
EP3073044A1 EP3073044A1 (fr) 2016-09-28
EP3073044B1 true EP3073044B1 (fr) 2021-09-29

Family

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Family Applications (1)

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EP16000701.9A Active EP3073044B1 (fr) 2015-03-27 2016-03-24 Dispositif de perçage de couche de recouvrement et procédé de perçage d'un noyau dans une couche de recouvrement

Country Status (3)

Country Link
US (1) US10443311B2 (fr)
EP (1) EP3073044B1 (fr)
DE (1) DE102015003909A1 (fr)

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CN113236168B (zh) * 2021-06-28 2022-06-21 山东省地质矿产勘查开发局第四地质大队(山东省第四地质矿产勘查院) 一种第四系钻探施工用钻探组合取芯设备

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Also Published As

Publication number Publication date
US20160281433A1 (en) 2016-09-29
US10443311B2 (en) 2019-10-15
EP3073044A1 (fr) 2016-09-28
DE102015003909A1 (de) 2016-09-29

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