EP2000627A2 - Richtbohrmaschine zum Bohren unterirdischer Kanäle - Google Patents

Richtbohrmaschine zum Bohren unterirdischer Kanäle Download PDF

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Publication number
EP2000627A2
EP2000627A2 EP08157503A EP08157503A EP2000627A2 EP 2000627 A2 EP2000627 A2 EP 2000627A2 EP 08157503 A EP08157503 A EP 08157503A EP 08157503 A EP08157503 A EP 08157503A EP 2000627 A2 EP2000627 A2 EP 2000627A2
Authority
EP
European Patent Office
Prior art keywords
axis
boring machine
directional boring
chuck
actuator
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Withdrawn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
EP08157503A
Other languages
English (en)
French (fr)
Other versions
EP2000627A3 (de
Inventor
Giovanni Campagna
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.)
Campagna Srl
Original Assignee
Campagna Srl
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 Campagna Srl filed Critical Campagna Srl
Publication of EP2000627A2 publication Critical patent/EP2000627A2/de
Publication of EP2000627A3 publication Critical patent/EP2000627A3/de
Withdrawn legal-status Critical Current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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • E21B7/06—Deflecting the direction of boreholes
    • E21B7/067—Deflecting the direction of boreholes with means for locking sections of a pipe or of a guide for a shaft in angular relation, e.g. adjustable bent sub
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10—Making by using boring or cutting machines
    • E21D9/1006—Making by using boring or cutting machines with rotary cutting tools
    • E21D9/1013—Making by using boring or cutting machines with rotary cutting tools on a tool-carrier supported by a movable boom
    • E21D9/102—Making by using boring or cutting machines with rotary cutting tools on a tool-carrier supported by a movable boom by a longitudinally extending boom being pivotable about a vertical and a transverse axis

Definitions

  • the present invention relates to a directional boring machine for drilling underground ducts.
  • a first operation regards the vertical shaft having a depth comprised between 2 m and 15 m, with a cross section as contained as possible (a diameter comprised between 75 cm and 120 cm), and the purpose of which is to reach the depth suitable for carrying out the second operation, which regards drilling of the substantially horizontal duct, in which the pipes with a diameter comprised between 20 cm and 60 cm for a length comprised between 2 m and 50 m are to be laid.
  • a further technique used regards percussion drilling which envisages the use of an ogival-shaped percussion drill that advances underground by means of successive impacts at high frequency.
  • Said system in addition to penetrating into the target excavation, causing considerable damage as a result of the disruptive percussive force, does not guarantee the position of penetration given that it is not equipped with any device for correction of the bore path.
  • the aim of the present invention is to provide a directional boring machine for drilling underground ducts, the technical characteristics of which are such as to guarantee reduced dimensions and weight so as to be usable also for works where a treading surface of small dimensions is available, without this implying any loss of efficiency.
  • the subject of the present invention is a directional boring machine for drilling underground ducts, characterized in that it comprises a cutting bit designed to carry out removal of the material, a chuck connected to the cutting bit for ensuring rotation thereof about an axis of its own, a first actuator designed to cause slewing of the chuck about a first axis perpendicular to the axis of rotation of the cutting bit, and a second actuator designed to cause slewing of said chuck about a second axis perpendicular to said first axis and parallel to a drilling axis.
  • Figure 1 designated as a whole by 1 is the directional boring machine forming the subject of the present invention.
  • the directional boring machine 1 comprises a chuck 2, fixed to which is a hemispherical cutting bit 3.
  • the chuck 2 comprises an hydraulic motor 4 designed to maintain the hemispherical cutting bit 3 in operating rotation about an axis Z of its own.
  • the directional boring machine 1 comprises a central structure 5 hinged onto the chuck 2 along an axis Y orthogonal to the axis Z of rotation of the cutting bit 3.
  • the central structure 5 comprises an oleodynamic hydraulic actuator 6 having a rack stem 7, which engages a pinion 8 fixed to the chuck 2. Coupling of the rack 7 with the pinion 8 enables the chuck 2 and, hence, the cutting bit 3, to rotate about the axis Y passing through the pinion 8 itself.
  • the machine 1 comprises a rear structure 9, in turn comprising a hydraulic motor 10 connected to an epicyclical reduction gear 11, which is in turn connected to the central structure 5, causing rotation thereof about an axis X parallel to a drilling axis S.
  • the two degrees of freedom (rotation about the axis Y and rotation about the axis X) of the chuck 2 guarantee a high freedom of movement and positioning of the cutting bit 3 itself in such a way as to be able to carry out drilling of underground ducts or conduits of different dimensions, as will be described hereinafter.
  • the rear structure 9 is, in use, fixed inside a pipe 12, which will have to be set in operation within the underground duct made, this implying that, once drilling of the duct is terminated, the directional boring machine 1 will be released and brought out onto the surface whilst the pipe 12 remains within the duct. Fixing of the rear structure 9 to the pipe 12 is provided by means of three brackets 13.
  • the directional boring machine 1 can be set in a position coaxial to the pipe 12 (as illustrated in Figure 1 ), or else in a misaligned position, for example, to optimize the efficiency of a suction unit (which is known and for this reason is not illustrated or described) for suction of the drilling debris, said suction unit also being located within the pipe 12.
  • the directional boring machine 1 is moved by means of oleodynamic actuators, the energy of which is generated by a power unit driven by an electric motor or internal-combustion engine that is located at the top of the vertical shaft or in any case on the surface.
  • oleodynamic actuators the energy of which is generated by a power unit driven by an electric motor or internal-combustion engine that is located at the top of the vertical shaft or in any case on the surface.
  • the supply of oil to the oleodynamic actuators is guaranteed by a pressurized-oil generator positioned on the surface and driven by an electric motor or internal-combustion engine.
  • a system of cables and pipes to which the machine 1 is connected is necessary. Said systems of cables and pipes are known and for this reason are not illustrated or described.
  • the directional boring machine 1 forming the subject of the present invention is able to make excavations of different dimensions, which, to make underground ducts, means being able both to sink the vertical shaft and to drill the substantially horizontal ducts.
  • the angle of the central structure 5 with respect to the axis S of drilling it is possible to vary the diameter of the action of drilling between a maximum diameter, which can be obtained when the central structure 5 is set orthogonal to the drilling axis S, and a minimum diameter, which can be obtained when the central structure 5 is set parallel to the drilling axis S.
  • the bore is obtained by the action of the cutting bit 3 for removal of the material, whilst the simultaneous rotation of the chuck 2 about the axis Y and the axis X, respectively, by means of the coupling between the pinion 8 and the rack 7 and by means of the epicyclic reduction gear 11, enables definition of the dimensions of the bore.
  • the directional boring machine 1 is employed for sinking the vertical shaft, as illustrated in Figure 2 .
  • the directional boring machine 1 is fixed to a portion of pipe 14, which will constitute a part of the walls of the shaft.
  • the directional boring machine 1 is released from the pipe 14 and engaged to a pipe 12 of considerably smaller diameter, which will constitute the end portion of the pipe in service in the duct to be made.
  • the directional boring machine 1 is set in a substantially horizontal position. As the excavation and, hence, the drilling of the duct advances, further lengths of pipe are progressively added, the first of which will be fixed precisely to the end portion represented by the pipe 12. In this way, it is possible to perform simultaneously the operation of drilling and the operation of formation and housing of the piping.
  • the directional boring machine 1 is released from the pipe 12 constituting the end portion of the piping, and the entire piping formed with the progressive addition of lengths of pipe is left within the duct that has been made.
  • the directional boring machine presents the advantages of having particularly small dimensions and weight and, at the same time, of being able to carry out all the excavation operations necessary for carrying out excavations, without thereby having to occupy large spaces on the surface with the drawbacks that this entails. Said advantages hence enable duct-drilling operations to be carried out also within dwellings or in the proximity of roads without, however, creating any inconvenience to the circulation of traffic.
  • a further advantage of the directional boring machine of the present invention regards the possibility of describing by means of the cutting bit 3, not only circular orbits, but also elliptical orbits, etc., in such a way as to correct the possible involuntary swerving of the system due to errors of positioning or to the penetration of the pipe 12 within markedly unhomogeneous terrains.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Earth Drilling (AREA)
  • Duct Arrangements (AREA)
EP08157503.7A 2007-06-04 2008-06-03 Richtbohrmaschine zum Bohren unterirdischer Kanäle Withdrawn EP2000627A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITBO20070396 ITBO20070396A1 (it) 2007-06-04 2007-06-04 Macchina fresatrice per la realizzazione di canalizzazioni sotterranee

Publications (2)

Publication Number Publication Date
EP2000627A2 true EP2000627A2 (de) 2008-12-10
EP2000627A3 EP2000627A3 (de) 2014-03-19

Family

ID=39743741

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08157503.7A Withdrawn EP2000627A3 (de) 2007-06-04 2008-06-03 Richtbohrmaschine zum Bohren unterirdischer Kanäle

Country Status (2)

Country Link
EP (1) EP2000627A3 (de)
IT (1) ITBO20070396A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120313422A1 (en) * 2010-01-26 2012-12-13 Atlas Copco Craelius Ab Method and device for working rock
CN104500085A (zh) * 2014-12-19 2015-04-08 北京首尔工程技术有限公司 一种螺旋出土跟管顶进管幕机
EP2739825A4 (de) * 2011-08-03 2016-07-27 Joy Mm Delaware Inc Materialhandhabungssystem für abbaumaschine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040112639A1 (en) * 2002-12-16 2004-06-17 Chen Chen-Kang D. Drilling with casing

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8513772D0 (en) * 1985-05-31 1985-07-03 Coal Industry Patents Ltd Resultant velocity control
JP2634655B2 (ja) * 1988-11-30 1997-07-30 日本鉱機株式会社 軟岩用トンネル掘進機
BE1003502A6 (nl) * 1989-04-28 1992-04-07 Smet Marc Jozef Maria Stuurbare boormol.
EP1245783A3 (de) * 1996-02-07 2002-12-04 Anadrill International SA Verfahren und Vorrichtung zum Richtbohren mit gewickeltem Rohrstrang

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040112639A1 (en) * 2002-12-16 2004-06-17 Chen Chen-Kang D. Drilling with casing

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120313422A1 (en) * 2010-01-26 2012-12-13 Atlas Copco Craelius Ab Method and device for working rock
US8950823B2 (en) * 2010-01-26 2015-02-10 Atlas Copco Craelius Ab Method and device for working rock
EP2739825A4 (de) * 2011-08-03 2016-07-27 Joy Mm Delaware Inc Materialhandhabungssystem für abbaumaschine
CN104500085A (zh) * 2014-12-19 2015-04-08 北京首尔工程技术有限公司 一种螺旋出土跟管顶进管幕机
CN104500085B (zh) * 2014-12-19 2016-08-24 北京首尔工程技术有限公司 一种螺旋出土跟管顶进管幕机

Also Published As

Publication number Publication date
ITBO20070396A1 (it) 2008-12-05
EP2000627A3 (de) 2014-03-19

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