EP0578034B1 - Procédé et dispositif pour le forage d'un trou dans le sol - Google Patents

Procédé et dispositif pour le forage d'un trou dans le sol Download PDF

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Publication number
EP0578034B1
EP0578034B1 EP93109815A EP93109815A EP0578034B1 EP 0578034 B1 EP0578034 B1 EP 0578034B1 EP 93109815 A EP93109815 A EP 93109815A EP 93109815 A EP93109815 A EP 93109815A EP 0578034 B1 EP0578034 B1 EP 0578034B1
Authority
EP
European Patent Office
Prior art keywords
head
expanding head
rod assembly
borehole
expanding
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.)
Expired - Lifetime
Application number
EP93109815A
Other languages
German (de)
English (en)
Other versions
EP0578034A1 (fr
Inventor
Franz-Josef Püttmann
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
Tracto Technik Paul Schmidt Spezialmaschinen 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, Tracto Technik Paul Schmidt Spezialmaschinen KG filed Critical Tracto Technik GmbH and Co KG
Publication of EP0578034A1 publication Critical patent/EP0578034A1/fr
Application granted granted Critical
Publication of EP0578034B1 publication Critical patent/EP0578034B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/002—Down-hole drilling fluid separation systems
    • 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
    • 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
    • E21B7/20—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
    • 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
    • E21B7/28—Enlarging drilled holes, e.g. by counterboring

Definitions

  • the invention relates to a method and a device for producing an earth hole for trenchless laying of lines, in which a pilot hole of relatively small diameter is first produced and this pilot hole is finally widened to a cross section which allows a product pipe to be drawn in or pushed in.
  • European patent application 0 247 767 describes a method for producing an earth borehole with the aid of a drill head arranged at the free end of a tubular rod, for example.
  • the rod is connected to a feed and rotary drive and rotates the drill head through the soil.
  • the drill head is provided with an inclined surface pointing in the direction of advance and produces a kind of pilot bore which is expanded in the same operation, ie in the direction of advance. This is done with the help of a conical expansion head arranged behind the drill head in the direction of advance, which forms a structural unit with the drill head.
  • Two-stage methods are also known, in which a pilot hole is first produced with the aid of a self-driven ram boring machine of smaller diameter, as is known, for example, from German patent specification 21 57 259, and this is then counter-driven with the aid of a more or less conical or egg-shaped tool is expanded.
  • this tool must be pulled with a rope through the pilot hole against the working direction of the ram boring machine and therefore requires a special drive unit.
  • such expanding heads only laterally displace the soil surrounding the pilot hole and are therefore only suitable for well-cohesive soils or sandy soils without stones.
  • their speed of advance is comparatively slow in view of the required displacement work.
  • the invention is therefore based on the object of providing a likewise two-stage method and a device which not only avoid the aforementioned disadvantages of the conventional methods and devices, but also allow expansion without substantially any displacement work.
  • the solution to this problem consists in a method in which, with the aid of a drill head arranged at the end of a driven rotating rod, a pilot hole is first produced, the drill head by a wedge-shaped widening head made of a cylindrical part with at least one helically extending circumferential or conveying groove arranged on its jacket and an inclined surface at its end pointing in the working direction is replaced and with the expanding head against the direction of advance the soil surrounding the pilot hole is peeled off by the expanding head rotated by means of the rotating rod and the soil is removed via the groove peripherally against the direction of advance. Accordingly, only a single drive unit arranged in a starting pit is used both in the production of the pilot bore and in the expansion thereof, and only the drilling head needs to be replaced by an expanding or peeling head between the two working phases.
  • the expanding head is rotated with the help of the rod and thus peels the soil surrounding the pilot hole, which counteracts with the help of a detergent the direction of advance, ie can be removed through the enlarged bore.
  • a device with a rotating rod, an exchangeable drill head at the free end of the rod for producing a pilot hole, an exchangeable, wedge-shaped, rotationally driven expanding head for producing an expanded hole by peeling off the soil surrounding the pilot hole from a cylindrical one is particularly suitable for carrying out the method according to the invention Part with at least one helical circumferential or conveying groove arranged on its casing and an inclined surface at its end pointing in the working direction.
  • the linkage can also be provided with a thrust drive in order to accelerate the advance during both drilling and peeling.
  • the expanding head can be connected to a conveyor or product pipe, via which the soil detached from the expanding head can be removed, for example, if a flushing agent is introduced into the delivery or product tube via a tubular rod and is inserted between the expanding head and the delivery pipe
  • Adapter piece with at least one inlet opening for the ground is arranged.
  • a deflector can be arranged in front of this opening in order to prevent the opening or the delivery pipe from becoming blocked by larger stones.
  • the removal of the soil through the delivery pipe can be improved further if detergent nozzles are located on the expansion head and / or in the area of the inlet opening of the adapter piece are arranged, which act as injectors and, as it were, suck the soil into the interior of the adapter.
  • the drive unit is located in a starting pit 1 and is described in detail in German Offenlegungsschrift 41 03 196; it essentially consists of a carriage 2 with a thrust and impact drive 3 and a rotary drive 4 for a linkage 5 on a carriage 6.
  • a drill head 7 for producing a pilot hole 8 in the soil 9 to be traversed.
  • This drill head 7 is detachably fastened to the rod 5 and is exchanged in a target pit for an expansion head 11 with a product pipe 12 .
  • the linkage 5 moves with the expanding head 11 and the product tube 12 against the direction of advance through the Pilot hole and in this way creates an earth hole 13 with a cross section substantially corresponding to the diameter of the expander head 11, through which the soil loosened from the expander head is discharged mechanically or by means of a flushing liquid in a manner not shown.
  • the expansion head is wedge-shaped and has an inclined surface 16 with a cutting plate 17 at the front end and an axial bore 18 through which a rod piece 5 extends, which is detachably connected to the rest of the rod in a manner not shown. Further cutting plates 19 are located on one side of the expansion head, the edges of which can be armored with a wear-resistant material.
  • the expansion head 11 is provided with grooves 20. Blocking of the product or delivery pipe 12 and the adapter 14 prevent deflectors 21 arranged in front of the adapter 14 in the working direction, which prevent larger stones from penetrating into the inlet openings or the adapter.
  • a pilot bore can be produced in a simple manner in two working phases with a single drive unit and then widened to the diameter required for the product tube while simultaneously pulling in a product tube.

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)
  • Earth Drilling (AREA)

Claims (10)

  1. Procédé pour le forage d'un trou dans le sol, selon lequel
    - un trou pilote (8) est réalisé
    - à l'aide d'une tête de forage (7) disposée à l'extrémité d'un train de tiges rotatives entraînées (5),
    - la tête de forage (7) est remplacée par une tête élargisseuse cunéiforme (11)
    - constituée d'une partie cylindrique avec au moins une rainure circonférentielle ou encore d'évacuation (20) s'étendant en hélice sur sa surface extérieure et
    - une face biaise (16) à son extrémité dirigée dans la direction de travail, et
    - la terre entourant le trou pilote est écroûtée à l'encontre de la direction de creusement par la tête élargisseuse (11) mise en rotation au moyen du train de tiges rotatives (5) et
    - la terre est évacuée circonférentiellement à l'encontre de la direction de creusement par l'intermédiaire de la rainure.
  2. Dispositif pour la mise en oeuvre du procédé selon la revendication 1, avec
    - un train de tiges rotatives (5),
    - une tête de forage remplaçable (7) à l'extrémité libre du train de tiges (5), pour forer un trou pilote (8),
    - une tête élargisseuse (11) remplaçable, cunéiforme, entraînée en rotation, pour forer un trou élargi par écroûtage de la terre entourant le trou pilote,
    - constituée d'une partie cylindrique avec au moins une rainure circonférentielle ou encore d'extraction (20) s'étendant en hélice sur sa surface extérieure et
    - une face biaise (16) à son extrémité dirigée dans la direction de travail.
  3. Dispositif selon la revendication 2, caractérisé en ce que la tête élargisseuse (11) est reliée à un tube d'évacuation (12).
  4. Dispositif selon la revendication 3, caractérisé en ce que le tube d'évacuation (12) est relié à un train de tiges tubulaire (5).
  5. Dispositif selon la revendication 4, caractérisé en ce que le train de tiges tubulaire (5) est raccordée à une source de fluide de circulation.
  6. Dispositif selon une des revendications 2 à 4, caractérisé en ce qu'un raccord adaptateur (14) est disposé entre la tête élargisseuse (11) et le tube d'évacuation (12).
  7. Dispositif selon la revendication 6, caractérisé en ce qu'un raccord adaptateur creux (14) possède au moins une ouverture d'admission (15).
  8. Dispositif selon la revendication 7, caractérisé en ce qu'un déflecteur (21) est disposé devant l'ouverture (15).
  9. Dispositif selon la revendication 7 ou 8, caractérisé en ce que des buses d'injection sont disposées dans la région de l'ouverture (15).
  10. Dispositif selon une des revendications 2 à 9, caractérisé en ce que des buses de fluide de circulation sont disposées sur la tête élargisseuse (11).
EP93109815A 1992-06-24 1993-06-19 Procédé et dispositif pour le forage d'un trou dans le sol Expired - Lifetime EP0578034B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4220430A DE4220430C2 (de) 1992-06-24 1992-06-24 Verfahren und Vorrichtung zum Herstellen einer Erdbohrung
DE4220430 1992-06-24

Publications (2)

Publication Number Publication Date
EP0578034A1 EP0578034A1 (fr) 1994-01-12
EP0578034B1 true EP0578034B1 (fr) 1997-10-15

Family

ID=6461567

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93109815A Expired - Lifetime EP0578034B1 (fr) 1992-06-24 1993-06-19 Procédé et dispositif pour le forage d'un trou dans le sol

Country Status (2)

Country Link
EP (1) EP0578034B1 (fr)
DE (2) DE4220430C2 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6109831A (en) * 1995-01-10 2000-08-29 Trenchless Replacement Services Ltd. Underground boring and pipe installation
FR2735841B1 (fr) * 1995-06-21 1997-09-19 Ftcs Dispositif d'elargissement d'un forage pilote
DE19608980C2 (de) * 1996-03-08 1998-05-07 Tracto Technik Vorrichtung zum Bohren im Erdreich
DE19610239C1 (de) * 1996-03-15 1997-07-17 Tracto Technik Vorrichtung zum Vergrößern des Querschnitts einer Pilotbohrung
DE19610238C2 (de) * 1996-03-15 1998-08-20 Tracto Technik Vorrichtung zur Querschnittsvergrößerung einer Pilotbohrung
DE19803596C2 (de) * 1998-01-30 2000-06-08 Tracto Technik Proportionalventil zum Steuern eines Horizontalbohrschlittens
AU3141101A (en) 2000-02-11 2001-08-20 Alois Pichler Method for inserting pipes into a bore hole and insertion drill head for carrying out said method
FR2809449B1 (fr) 2000-05-25 2003-10-03 Jack Butterworth Dispositif pour la mise en place d'une conduite dans un sol
DE10053567B4 (de) * 2000-10-27 2004-05-06 Tracto-Technik Gmbh Bohrwerkzeug und Vorrichtung zum Erzeugen einer Umfangsbohrung
DE10257392B4 (de) * 2002-12-06 2015-05-07 Tracto-Technik Gmbh Kanalbohrverfahren und -vorrichtung
GB2435276A (en) * 2006-02-21 2007-08-22 John Phillip Doherty Tunnelling system
DE102007015088B4 (de) 2007-03-29 2015-07-09 Tracto-Technik Gmbh & Co. Kg Verfahren zum mehrstufigen Herstellen einer Erdbohrung und Vorrichtung zur Durchführung des Verfahrens
DE102008018574A1 (de) * 2008-04-12 2009-10-15 Kögler, Rüdiger, Dr. Verfahren und Vorrichtungen zur Verlegung einer Rohrleitung im Boden
CN102147033B (zh) * 2010-02-09 2013-01-16 中国机械工业建设总公司 热力管道非开挖定向穿越施工方法
CN104145785B (zh) * 2014-07-31 2016-04-27 何剑光 一种家庭自动滴灌系统
CN106857187A (zh) * 2017-03-17 2017-06-20 浙江大学 一种自识别控制的节能滴灌系统

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3202228A (en) * 1963-01-30 1965-08-24 Allan C Schuster Drill apparatus and drill bit for enlarging apertures
BE759970A (fr) * 1970-11-17 1971-06-07 Inst Gornogo Dela Sibirskogo O Procede d'elargissement de trous debouchants creuses dans le sol et dispositif pour sa realisation
AT321206B (de) * 1972-10-02 1975-03-25 Boehler & Co Ag Geb Bohrverfahren und Vorrichtung zu seiner Durchführung
US3894402A (en) * 1974-07-19 1975-07-15 Martin D Cherrington Apparatus and method for emplacing a conduit along an underground arcuate path
US4519462A (en) * 1982-09-02 1985-05-28 Electric Power Research Institute, Inc. Cable following apparatus having cable cleaning capabilities and method
US4784230A (en) * 1985-05-14 1988-11-15 Cherrington Martin D Apparatus and method for installing a conduit within an arcuate bore
USRE33793E (en) * 1985-05-14 1992-01-14 Cherrington Corporation Apparatus and method for forming an enlarged underground arcuate bore and installing a conduit therein
FR2614332B1 (fr) * 1987-04-21 1991-08-16 Horizontal Drilling Internatio Procede pour installer une canalisation souterraine et installation s'y rapportant
SE8903212L (sv) * 1989-09-29 1991-03-30 Diamant Boart Craelius Ab Anordning foer att rymma ett i marken upptaget laangstraeckt haal
US5096002A (en) * 1990-07-26 1992-03-17 Cherrington Corporation Method and apparatus for enlarging an underground path
DE4134095C1 (fr) * 1991-10-15 1992-07-16 Flowtex Technologie Import Von Kabelverlegemaschinen Gmbh, 7505 Ettlingen, De

Also Published As

Publication number Publication date
DE4220430A1 (de) 1994-01-05
EP0578034A1 (fr) 1994-01-12
DE59307531D1 (de) 1997-11-20
DE4220430C2 (de) 1994-09-22

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