EP1818499B1 - Apparatus for simultaneously drilling and casing boreholes - Google Patents

Apparatus for simultaneously drilling and casing boreholes Download PDF

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Publication number
EP1818499B1
EP1818499B1 EP06460003A EP06460003A EP1818499B1 EP 1818499 B1 EP1818499 B1 EP 1818499B1 EP 06460003 A EP06460003 A EP 06460003A EP 06460003 A EP06460003 A EP 06460003A EP 1818499 B1 EP1818499 B1 EP 1818499B1
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EP
European Patent Office
Prior art keywords
drilling bit
coupler
head
casing pipe
central opening
Prior art date
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EP06460003A
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German (de)
French (fr)
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EP1818499A1 (en
Inventor
Andrzej Karczmarczyk
Tadeusz Piotrowski
Krzysztof Urgacz
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Gonar Sp Zoo
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Gonar Sp Zoo
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Application filed by Gonar Sp Zoo filed Critical Gonar Sp Zoo
Priority to AT06460003T priority Critical patent/ATE520858T1/en
Priority to EP06460003A priority patent/EP1818499B1/en
Priority to PL06460003T priority patent/PL1818499T3/en
Publication of EP1818499A1 publication Critical patent/EP1818499A1/en
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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
    • E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
    • 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
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/046—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches
    • 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
    • E21B10/64—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 DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
    • E21D21/0053—Anchoring-bolts in the form of lost drilling rods

Definitions

  • the invention relates to a device for the simultaneous drilling and lining of boreholes especially for impact or rotary impact drilling in the ground or rock stone in civil engineering in the tunnels and piercing propulsion continue in the construction of slopes and similar objects requiring permanent strengthening as well as in underground mining.
  • the device consists of a split drill bit, the main part of which forms a pilot as the most projecting part in the drilling direction. In the radial direction slightly behind the end face of the pilot, a distributed part of the drill bit in the form of a ring is arranged.
  • the end faces of the pilot and the rim are provided with inserts having from the outside a shape of hemispherical projections formed of cemented carbide.
  • the coupling element in this or the next example embodiments of this patent application is in the form of a profiled, annular intermediate member or a set of balls.
  • the drill bit is rotatably connected to the cladding tube (s) via the coupling element.
  • the cladding tubes are provided at the periphery of the front part in holes intended for the passage of water emulsion, which is supplied through the drill string to the channel of the drill bit, and from there through the obliquely arranged outer holes to the space between the wellbore and cladding as well as between the two, for the purpose of rinsing outside of Bohrmehles, exits ducts.
  • the drill bit and exactly her pilot will after the completion of the hole pulled out of the hole along with the drill pipe or a set of drill pipes.
  • the object presented for release prior to the induced invention is a machining of a simple set of elements of the device, which allows a simultaneous, quick and easy completion of the whole series of boreholes.
  • the device for further the drill pipe is connected to a mounted on the mount drill.
  • the drilling machine together with the drill pipe and connector are inserted in a cladding tube, which, when a set of cladding tubes is provided, forms a guide tube, whereby in succession obtained by the drill bit extraction progress, a feed of the cladding tube from the direction of extraction takes place.
  • the connector also exerts a function of the feed element of the cladding tube in addition to energy supply of the drill bit and their leadership in the borehole.
  • a drill bit 1 is formed as a unitary element and mounted separately on a mandrel 2.1 of the connector 2 .
  • the connector 2 is connected from the opposite side to the extraction direction with a drill string 4 through a threaded connection which is set further from the other side in a drill mounted on a carriage (not shown in the drawing).
  • the cladding tube 3 has in the vicinity of its extension 3.10 on its inside 3.1 a permanently advantageous trained by welding collar 3.2 , the rear 3.4 is determined to strike contact with side 2.2 of the connector 2 and which forms a kind of driver of the cladding tube 3 .
  • the cladding tube 3 comprises the drill bit shank 1.2 and extends to the bit head 1.1.
  • the drill bit 1 has a centrally arranged center channel 1.3 , of which the bottom surface 1.3.1 of wider part, which bears against the end face 2.8 of the connector 2, is located in the drill bit head 1.1 on the transition from the drill bit head 1.1 to the drill bit shank 1.2
  • the drill bit 1 is introduced together with the connector 2 and the drill pipe 4 in a cladding tube 3 .
  • a series of openings 3.3 is formed, which are welded after introduction of the Federal 3.2 in the hole of this cladding tube 3 .
  • the collar 3.2 is inserted so deep inside the cladding tube 3 , that its rear surface 3.4 is arranged obliquely to the main axis, is used for contact with side 2.2 of the connector 2, which this connector 2 is inserted in a central opening 3.6 of the Federal 3.2 , the side paragraph 2.2 of the connector 2 is located between the transition of the thickened part of its mandrel 2.1 and 2.3 connector, and is also formed obliquely to the main axis of the device, wherein the slope of the rear surface 3.4 of the collar 3.2 and 2.2 lateral side are identical.
  • the connector 2 is provided in a formed in its axis through hole 2.4 , which is wider and drawn from the connection with drill pipe 4 , and further to the output and shock with narrowed part 1.4 of the central channel 1.3 in the drill bit 1, the through hole 2.4 is narrowed and is used exclusively for swimming through the water emulsion or the compressed air.
  • the narrowed part 1.4 of the center channel 1.3 is formed in the drill bit head 1.1 of the drill bit 1 and has a connection with the drill bit 1 formed in this oblique holes 1.5, directed forward, their outputs to the part of the flat face 1.7, as well as at the oblique Front 1.6 of the drill bit head 1.1 of the drill bit 1 have.
  • the drill bit 1 is also provided in an inclined from the narrowed center channel 1.4 backward additional opening 1.8 , and which has an output in one of lateral recesses 1.9 of the drill bit 1 .
  • the front side of the drill bit 1 immediately her flat part 1.7 and her oblique face 1.6 are equipped with curved elements that have depending on mined material or inserts of carbide 1.10 or appropriately shaped dome 1.11 as a sprue of secret material such as the drill bit 1 .
  • the drill bit 1 has in its center channel 1.3 from the opposite end face 1.12 on inner walls of boards 1.13 , after placing on the mandrel 2.1 of the connector 2, the drill bit 1 and its rotation, in this case left (looking from the front 1.7 the drill bit 1) against unwanted solution with connector 2 , because the projections on the connector shaft 2.3 of the connector 2 to take the space created by the boards 1.13 and inner walls of the center channel 1.3 niches.
  • the oblique openings 1.5 in the drill bit head 1.1 and center channel 1.3, 1.4 are also used to supply the shock of the drill bit 1 with degraded rock water emulsion, so not only to facilitate the removal of the drill dust, but also to avoid the resulting dust content.
  • the water emulsion is fed from the drilling machine through drill pipe 4 to the through hole 2.4 of the connector 2 and from there to the center channel 1.3 , further through the narrowed center channel 1.4 and injected above mentioned oblique openings 1.5 of the drill bit head 1.1 .
  • the drilling dust flows from the excavation site through lateral recesses 1.9 of the drill head 1.1 of the drill bit 1, further through recesses 3.5 in the collar 3.2 of the cladding tube 3 .
  • the drill dust moves in the closed space between Hüllroh 3 and drill pipe 4, to the output of the borehole.
  • the device acts in this way that the percussion drill or percussion drill the beats and rotations of the scheduled in its holder drill pipe 4, the following the strokes and rotations of the fastened on its end connector 2, further the shocks and turns, at his Dorn 2.1 stored drill bit 1 transmits, and this provided with their front side 1.7, 1.6 in inserts of carbide pins 1.10 and / or dome 1.11 hitting broken rock, crushing it.
  • the extraction stops disconnects from the holder of the drill from the drill pipe 4 , then the drill moves back to the gun carriage and the drill pipe 4 rotates a new, second, or next drill pipe forming the extension of the first drill pipe 4 and attaching this second or next to the drill.
  • the first cladding tube 3 ended at its end with an external thread 3.7 , with internal thread 3.8 turns the next cladding tube.
  • the second cladding tube and possibly the next cladding tubes are already without inner collar 3.2, since he is already superfluous.
  • the holes arise in approximately horizontal position, ranging up to 15 meters, which in the cladding tubes and drill rods of 3 meters in length, allows a drilling kit of five sections to assemble.
  • the drill bit 1 disconnects from the connector 2 and remains in the borehole, however, drill pipe 4 or set of drill pipes extend from the casing 3 or the set of ducts remaining in the drilled hole / s.
  • drill pipe 4 or set of drill pipes extend from the casing 3 or the set of ducts remaining in the drilled hole / s.
  • the cladding brings hardening substance under pressure, which emerges through the holes formed in cladding holes 3.9 , filled the space around these pipes around and solidifies with domestic soil, it reinforcing. So the execution of the next hole requires a preparation of the new drill bit and a successive set of sheaths, by continuing to use the remaining elements, if they have not been worn out.

Abstract

The device has a drill bit (1) that is mounted with a bore rod (4), a sheath (3) for lining boreholes, and a connector (2) that is connected with the drill bit. The connector is designed for inserting the sheath into an inner side of the boreholes, where the sheath is adjusted by an impact contact with the connector during operation. The impact contact concurrently transfers impacts and revolutions of the drill bit through the bore rod, where the connector is connected with the bore rod.

Description

Die Erfindung betrifft eine Einrichtung zum gleichzeitigen Bohren und Auskleiden von Bohrlöchern besonders zum Schlag- oder Drehschlagbohren im Boden oder Felsenstein im Tiefbau bei den Tunneln- und Durchbrochenvortrieb weiter bei den Bau von Böschungen und ähnlichen Objekten die dauerhafte Erstarkung erfordern als auch im Untertagebau.The invention relates to a device for the simultaneous drilling and lining of boreholes especially for impact or rotary impact drilling in the ground or rock stone in civil engineering in the tunnels and piercing propulsion continue in the construction of slopes and similar objects requiring permanent strengthening as well as in underground mining.

Es gibt die Einrichtungen zum Bohren allgemein bekannt, zumal einer Fertigstellung bedeutenden Zahl näher sich angeordneten Löcher und Einbringen gleichzeitig oder ferner in diese Löcher Anker oder Hüllrohre, zu denen unter einem Druck ein erhärtendes Material eingebracht wird, das durch im Mantel des Rohres ausgebildeten Borungen ausspritzend, ausfüllt dann den Freiraum ringsherum um den Rohren und nach der Verhärtung des erhärtenden Materials, welches am meisten Zementlösung bildet, und ferner nach Binden mit Erdstoff, bildet eine Art von Zementerstarkung oder eine Art von den Rohren geschaffenen Schutzmantel und erhärtende herum die Rohren Substanz, welche die Rohre an der Stelle ihrer Einbringen gleich bleibend eingesetzt sind und infolge dessen einen integralen Teil des gebauten Objektes bilden.There are the facilities for drilling well known, especially a completion significant number closer holes and introducing simultaneously or further into these holes anchor or sheaths to which under a pressure a hardening material is introduced, spouted by formed in the shell of the tube bungs then fills the clearance around the pipes and after the hardening of the hardening material which forms the most cement solution, and further after bonding with earth, forms a kind of cement strengthening or a kind of protective coating created by the pipes and hardening the pipes substance, which the pipes are used consistently at the point of their introduction and consequently form an integral part of the built object.

Aus dem Stand der Technik sind mehrere Einrichtungen zur Fertigstellung von Löcher und ihren Auskleiden bekannt. Solche Einrichtungen weisen eine an der Bohrgestänge aufgesetzte Bohrkrone auf, hingegen das Bohrgestänge in einer Schlag- oder Drehschlagbohrmaschine eingesetzt ist, wobei die Bohrmaschine am meisten mit hydraulischen Antrieb auf einer Lafette aufgesetzt ist, die der Bohrmaschine eine entsprechende in Abhängigkeit von Härte des abgebauten Materials Vorschub übermittelt.Several devices for the completion of holes and their lining are known from the prior art. Such devices have a patch on the drill string drill bit, however, the drill string is used in a percussion or rotary impact drill, the drill is placed most with hydraulic drive on a carriage, the the drill transmitted a corresponding depending on the hardness of the mined material feed.

Es ist unter anderem eine Einrichtung von EP 0 948 701 A1 bekannt, zum gleichzeitigen Bohren des Loches und Einbringen in dieses Loch wenigstens ein Hüllrohr oder mehrere Hüllrohre bildende folgend ein festes Element des gebauten Objektes.It is among other things a facility of EP 0 948 701 A1 known, for simultaneous drilling of the hole and introducing into this hole at least one cladding or several cladding forming subsequent solid element of the built object.

Die Einrichtung besteht aus einer geteilten Bohrkrone, deren Hauptteil einen Pilot als am meisten abragender Teil in Bohrrichtung bildet. In Radialrichtung etwas dahinter der Stirnseite des Pilot ist ein in Form eines Kranzes ausgebildeten verteilter Teil der Bohrkrone angeordnet.The device consists of a split drill bit, the main part of which forms a pilot as the most projecting part in the drilling direction. In the radial direction slightly behind the end face of the pilot, a distributed part of the drill bit in the form of a ring is arranged.

Die Stirnseite des Pilot und des Kranzes sind mit Einsätzen versehen, die von Außen eine Gestalt von Halbkugelvorsprüngen, ausgebildeten aus Hartmetall, aufzuweisen. Am Aussenumfang der Bohrkrone am von der Abbaufläche abgewandten Ende über wenigstens ein Kopplungselement wenigstens ein das Bohrgestänge umgebendes Hüllrohr formschlüssig mit der Bohrkrone verbunden ist. Das Kopplungselement in dieser oder den nächsten Beispielausführungen dieser Patentanmeldung ist in Form eines profilierten, ringförmigen Zwischengliedes oder einen Satz von Kugeln ausgebildet. Die Bohrkrone ist über das Kopplungselement drehbar mit dem (den) Hüllrohr(en) verbunden.The end faces of the pilot and the rim are provided with inserts having from the outside a shape of hemispherical projections formed of cemented carbide. On the outer circumference of the drill bit at the end facing away from the excavation surface via at least one coupling element at least one surrounding the drill pipe cladding tube is positively connected to the drill bit. The coupling element in this or the next example embodiments of this patent application is in the form of a profiled, annular intermediate member or a set of balls. The drill bit is rotatably connected to the cladding tube (s) via the coupling element.

Die Hüllrohre sind am Unfang des vorderen Teils in Löcher versehen, die zum Durchtritt von Wasseremulsion bestimmt sind, das durch das Bohrgestänge zum Kanal der Bohrkrone zugeführt wird, und von dort durch die schräg angeordneten Außenlöcher zum freien Raum zwischen dem Bohrloch und Hüllrohr als auch zwischen den beiden, zwecks Ausspülung nach draußen des Bohrmehles, Hüllrohren austritt. Die Bohrkrone und genau ihr Pilot wird nach der Fertigstellung des Loches zusammen mit dem Bohrgestänge oder einem Satz von Bohrgestängen aus dem Loch herausgezogen.The cladding tubes are provided at the periphery of the front part in holes intended for the passage of water emulsion, which is supplied through the drill string to the channel of the drill bit, and from there through the obliquely arranged outer holes to the space between the wellbore and cladding as well as between the two, for the purpose of rinsing outside of Bohrmehles, exits ducts. The drill bit and exactly her pilot will after the completion of the hole pulled out of the hole along with the drill pipe or a set of drill pipes.

Aus einer anderen Patentanmeldung WO 2005/033467 A1 ist eine Vorrichtung zum Bohren von Löchern in Boden oder Gesteinmaterial bekannt, in der die Bohrkrone in ihrem zentralen Bereich durch das Bohrgestänge beaufschlagbar ist, und hingegen das Bohrgestänge einen mit dem Hüllrohr zusammenwirkenden Verbinder beaufschlagt wobei das Bohrgestänge unter einer Zwischenschaltung eines Schlagrings mit dem Verbinder zur Übertragung von Schlagenergie auf das Hüllrohr gekoppelt ist.From another patent application WO 2005/033467 A1 a device for drilling holes in soil or rock material is known, in which the drill bit is acted upon in its central region by the drill string, and on the other hand the drill string acts on a cooperating with the jacket tube connector wherein the drill string with an interposition of a striking ring with the connector for Transmission of impact energy is coupled to the cladding tube.

Die Aufgabe, welche vor der herbeigeführten Erfindung zum Lösen vorgestellt wurde, besteht in einer Bearbeitung eines einfachen Satzes von Elementen der Einrichtung, die eine gleichzeitige, schnelle und problemlose Fertigstellung der ganzen Reihe von Bohrlöchern ermöglicht.The object presented for release prior to the induced invention is a machining of a simple set of elements of the device, which allows a simultaneous, quick and easy completion of the whole series of boreholes.

Die Aufgabe wurde in dieser Weise gelöst, dass die Einrichtung zum Weiter das Bohrgestänge ist mit einer auf der Lafette aufgesetzten Bohrmaschine verbunden. Die Bohrmaschine samt mit dem Bohrgestänge und Verbinder sind in ein Hüllrohr eingebracht, das, wenn einen Satz von Hüllrohren vorgesehen ist, bildet ein Führungsrohr, wodurch in Folge durch die Bohrkrone erzielte Gewinnungsfortschritt, einen Vorschub des Hüllrohres vom in Richtung der Gewinnung erfolgt.The object has been achieved in this way, that the device for further the drill pipe is connected to a mounted on the mount drill. The drilling machine together with the drill pipe and connector are inserted in a cladding tube, which, when a set of cladding tubes is provided, forms a guide tube, whereby in succession obtained by the drill bit extraction progress, a feed of the cladding tube from the direction of extraction takes place.

In dieser Weise der Verbinder neben Energienanspeisung der Bohrkrone und ihrer Führung im Bohrloch auch eine Funktion des Vorschubelementes des Hüllrohres ausübt.In this way, the connector also exerts a function of the feed element of the cladding tube in addition to energy supply of the drill bit and their leadership in the borehole.

Der Merkmal der Lösung neben der Vereinfachung der Konstruktion ist eine Versicherung der zuverlässigen Wirkung.The feature of the solution besides the simplification of the construction is an assurance of the reliable effect.

Die Erfindung ist näher in Ausführungsbeispielen auf der Zeichnung vorgestellt.The invention is presented in more detail in exemplary embodiments in the drawing.

Es zeigen:

  • Fig.1 eine Längsschnitt der Einrichtung
  • Fig.2 eine Bohrkrone in einem Achsenschnitt
  • Fig.3 eine Ansicht der Stirnseite der Bohrkrone
  • Fig. 4 teilweiser Durchschnitt der Bohrkrone in die Fig. 1 angedeutet
  • Fig.5 einen Verbinder in einer axonometrischen Ansicht
  • Fig.6 einen Bund des Hüllrohres in einer axonometrischen Ansicht
  • Fig. 7 einen Schnitt der Bohrkrone im zweiten Ausführungsbeispiel und
  • Fig.8 einen Bund in einer axonometrischen Ansicht, auch im zweiten Ausführungsbeispiel
Show it:
  • Fig.1 a longitudinal section of the device
  • Fig.2 a drill bit in an axial section
  • Figure 3 a view of the front of the drill bit
  • Fig. 4 partial average of the drill bit in the Fig. 1 implied
  • Figure 5 a connector in an axonometric view
  • Figure 6 a collar of the cladding tube in an axonometric view
  • Fig. 7 a section of the drill bit in the second embodiment and
  • Figure 8 a covenant in an axonometric view, also in the second embodiment

Der Erfindung gemäss ist eine Bohrkrone 1 als ein einheitliches Element ausgebildet und an einem Dorn 2.1 des Verbinders 2 getrennt gelagert. Der Verbinder 2 ist von der Gegenseite zur Gewinnungsrichtung mit einem Bohrgestänge 4 durch eine Gewindeverbindung verbunden, das weiter von der anderen Seite in einer auf einer Lafette aufgesetzte Bohrmaschine (in der Zeichnung nicht angezeigt) festgelegt ist.According to the invention, a drill bit 1 is formed as a unitary element and mounted separately on a mandrel 2.1 of the connector 2 . The connector 2 is connected from the opposite side to the extraction direction with a drill string 4 through a threaded connection which is set further from the other side in a drill mounted on a carriage (not shown in the drawing).

Ferner das Hüllrohr 3 weist in der Nähe seiner Endung 3.10 an seiner Innenseite 3.1 einen dauerhaft vorteilhaft durch Schweißvorgang ausgebildeten Bund 3.2 auf, dessen Hinterseite 3.4 zu einem Schlagkontakt mit Seitenabsatz 2.2 des Verbinders 2 bestimmt ist und welcher eine Art von Mitnehmer des Hüllrohres 3 bildet.Further, the cladding tube 3 has in the vicinity of its extension 3.10 on its inside 3.1 a permanently advantageous trained by welding collar 3.2 , the rear 3.4 is determined to strike contact with side 2.2 of the connector 2 and which forms a kind of driver of the cladding tube 3 .

Das Hüllrohr 3 umfasst den Bohrkronenschaft 1.2 und reicht bis zum Bohrkronenkopf 1.1. Die Bohrkrone 1 weist einen zentrisch angeordneten Mittelkanal 1.3 auf, dessen die Bodenfläche 1.3.1 des breiteren Teils, die zur Stirnfläche 2.8 des Verbinders 2 anliegt, sich im Bohrkronenkopf 1.1 über die Übergang vom Bohrkronenkopf 1.1 zum Bohrkronenschaft 1.2 befindet Die Bohrkrone 1 ist zusammen mit dem Verbinder 2 und der Bohrgestänge 4 in einem Hüllrohr 3 eingebracht.The cladding tube 3 comprises the drill bit shank 1.2 and extends to the bit head 1.1. The drill bit 1 has a centrally arranged center channel 1.3 , of which the bottom surface 1.3.1 of wider part, which bears against the end face 2.8 of the connector 2, is located in the drill bit head 1.1 on the transition from the drill bit head 1.1 to the drill bit shank 1.2 The drill bit 1 is introduced together with the connector 2 and the drill pipe 4 in a cladding tube 3 .

Überdies zur Verstärkung der Verbindung des Hüllrohres mit ihrem Bund 3.2 am Umfang des Hüllrohres 3 ist eine Reihe von Durchtrittsöffnungen 3.3 ausgebildet, die nach Einbringen des Bundes 3.2 in das Loch dieses Hüllrohres 3 geschweißt sind. Der Bund 3.2 ist so tief in Innere des Hüllrohres 3 eingesetzt, dass seine hintere Fläche 3.4 schräg zur Hauptachse angeordnet, dient zum Kontakt mit Seitenabsatz 2.2 des Verbinders 2, welcher dies Verbinder 2 in einem Mittenöffnung 3.6 des Bundes 3.2 eingebracht ist, wobei der Seitenabsatz 2.2 des Verbinders 2 sich zwischen dem Übergang des verdickten Teils seinen Dorn 2.1 und Verbinderschaft 2.3 befindet, und auch schräg zur Hauptachse der Einrichtung ausgebildet ist, wobei die Schräge der hinteren Fläche 3.4 des Bundes 3.2 und Seitenabsatzes 2.2 identisch sind.Moreover, to reinforce the connection of the cladding tube with its collar 3.2 on the circumference of the cladding tube 3 , a series of openings 3.3 is formed, which are welded after introduction of the Federal 3.2 in the hole of this cladding tube 3 . The collar 3.2 is inserted so deep inside the cladding tube 3 , that its rear surface 3.4 is arranged obliquely to the main axis, is used for contact with side 2.2 of the connector 2, which this connector 2 is inserted in a central opening 3.6 of the Federal 3.2 , the side paragraph 2.2 of the connector 2 is located between the transition of the thickened part of its mandrel 2.1 and 2.3 connector, and is also formed obliquely to the main axis of the device, wherein the slope of the rear surface 3.4 of the collar 3.2 and 2.2 lateral side are identical.

Der Verbinder 2 ist in einen in seiner Achse ausgebildeten Durchgangsloch 2.4 versehen, der seitens der Verbindung mit Bohrgestänge 4 breiter und gezogen ist, und weiter bis zum Ausgang und Stoss mit verengtem Teil 1.4 des Mittelkanals 1.3 in der Bohrkrone 1, ist der Durchgangsloch 2.4 verengt und dient ausschließlich zum Durchschwimmen des Wasseremulsion oder der Pressluft. Ein Teil des Mittenöffnungen 1.3 der Bohrkrone 1 von der abgewandten Seite, nämlich von der Gegenseite zum Abbauvortrieb in Form eines Vielkeilprofils, am Bohrkronenschaft 1.2 der Bohrkrone 1 ausgebildet ist, und dient zum Verbindung mit Dorn 2.1 des Verbinders 2, an dessen Seitenfläche 2.5 Vorsprünge 2.6 zum Übertragen der Drehungen von der Bohrstange 4 bestimmt, ausgebildet sind.The connector 2 is provided in a formed in its axis through hole 2.4 , which is wider and drawn from the connection with drill pipe 4 , and further to the output and shock with narrowed part 1.4 of the central channel 1.3 in the drill bit 1, the through hole 2.4 is narrowed and is used exclusively for swimming through the water emulsion or the compressed air. A part of the center openings 1.3 of the drill bit 1 from the opposite side, namely from the opposite side for mining propulsion in the form of a splined profile, the drill bit shank 1.2 of the drill bit 1 is formed, and is used for connection with mandrel 2.1 of the connector 2, to the side surface 2.5 protrusions 2.6 intended to transmit the rotations of the drill rod 4 , are formed.

Der verengte Teil 1.4 des Mittenkanals 1.3 ist im Bohrkronenkopf 1.1 der Bohrkrone 1 ausgebildet und hat eine Verbindung mit den in dieser Bohrkrone 1 ausgebildeten schrägen Öffnungen 1.5, gerichteten nach vorn, die ihre Ausgänge an dem Teil der flachen Stirnseite 1.7, als auch an der schrägen Stirnseite 1.6 des Bohrkronenkopfes 1.1 der Bohrkrone 1 haben. Die Bohrkrone 1 ist überdies in einen vom verengten Mittenkanal 1.4 schräg rückwärts gerichteten zusätzlichen Öffnung 1.8 versehen, und welcher einen Ausgang in einem von seitlichen Aussparungen 1.9 der Bohrkrone 1 aufweist. Die Stirnseite der Bohrkrone 1 sogleich ihr flacher Teil 1.7 als auch ihr schräge Stirnseite 1.6 sind mit gewölbten Elementen ausgestattet, die in Abhängigkeit von abgebauten Material oder Einsätze von Hartmetall 1.10 oder entsprechend ausgebildeten Kuppen 1.11 als Angusse aus heimlichen Stoff wie die Bohrkrone 1 aufweisen. Die Bohrkrone 1 weist in ihrem Mittenkanal 1.3 von der abgewandten Stirnseite 1.12 an inneren Wände Vorstände 1,13 auf, die nach dem Aufsetzen an den Dorn 2.1 des Verbinders 2 die Bohrkrone 1 und ihre Umdrehung, in diesem Fall links (sehend von der Stirnseite 1.7 der Bohrkrone 1) vor ungewünschten Lösung mit Verbinder 2 versichern, weil die Vorsprünge an dem Verbinderschaft 2.3 des Verbinders 2, den Raum in durch die Vorstände 1.13 und innere Wände des Mittenkanals 1.3 geschaffenen Nischen einzunehmen.The narrowed part 1.4 of the center channel 1.3 is formed in the drill bit head 1.1 of the drill bit 1 and has a connection with the drill bit 1 formed in this oblique holes 1.5, directed forward, their outputs to the part of the flat face 1.7, as well as at the oblique Front 1.6 of the drill bit head 1.1 of the drill bit 1 have. The drill bit 1 is also provided in an inclined from the narrowed center channel 1.4 backward additional opening 1.8 , and which has an output in one of lateral recesses 1.9 of the drill bit 1 . The front side of the drill bit 1 immediately her flat part 1.7 and her oblique face 1.6 are equipped with curved elements that have depending on mined material or inserts of carbide 1.10 or appropriately shaped dome 1.11 as a sprue of secret material such as the drill bit 1 . The drill bit 1 has in its center channel 1.3 from the opposite end face 1.12 on inner walls of boards 1.13 , after placing on the mandrel 2.1 of the connector 2, the drill bit 1 and its rotation, in this case left (looking from the front 1.7 the drill bit 1) against unwanted solution with connector 2 , because the projections on the connector shaft 2.3 of the connector 2 to take the space created by the boards 1.13 and inner walls of the center channel 1.3 niches.

Im zweiten Ausführungsbeispiel (Fig. 7 und Fig.8) der Mittenkanal 1.3 der Bohrkrone 1 ist rund ist und in entsprechender Gewinde 1.14 versehen ist, die mit entsprechender Gewinde 2.7, an der seitlichen Walzenfläche 2.5 des Verbinders 2 geschnitten, mitwirkt. In diesem Fall bilden die Bohrkrone 1 und Verbinder 2 gemeinsam mit sich eine Gewindeverbindung.In the second embodiment ( Fig. 7 and Fig.8 ) of the central channel 1.3 of the drill bit 1 is round and is provided in a corresponding thread 1.14 , which cuts with the appropriate thread 2.7, cut on the lateral roller surface 2.5 of the connector 2. In this Case, the drill bit 1 and connector 2 together with a threaded connection.

An dem Bohrkronenkopf 1.1 der Bohrkrone 1 sind von der schrägen Stirnseite 1.6 beginnend bis zum Ende des Bohrkronenkopfes 1.1 seitliche Aussparungen 1.9 ausgebildet, die Abführung des Bohrmehles rückwärts zu erleichtern. Die schräge Öffnungen 1.5 in dem Bohrkronenkopf 1.1 und Mittenkanal 1.3, 1.4 dienen auch zur Zuführung zum Stoß der Bohrkrone 1 mit abgebauten Gestein Wasseremulsion, damit nicht nur die Abführung des Bohrmehls zu erleichtern, aber auch den entstandenen Staubgehalt zu vermeiden. Das Wasseremulsion ist von der Bohrmaschine durch Bohrgestänge 4 zum Durchgangsloch 2.4 des Verbinders 2 und von dort dann zum Mittenkanal 1.3 zugeführt, weiter durch den verengten Mittenkanal 1.4 durchgeführt und spritzt oben erwähnten schrägen Öffnungen 1.5 des Bohrkronenkopfes 1.1 aus. Das Bohrmehl fliesst von der Abbaustelle durch seitliche Aussparungen 1.9 des Bohrkopfes 1.1 der Bohrkrone 1, weiter durch Aussparungen 3.5 im Bund 3.2 des Hüllrohres 3 aus.At the drill bit head 1.1 of the drill bit 1 are from the oblique end 1.6 beginning to the end of the drill bit head 1.1 side recesses 1.9 formed to facilitate the removal of the Bohrmehles backwards. The oblique openings 1.5 in the drill bit head 1.1 and center channel 1.3, 1.4 are also used to supply the shock of the drill bit 1 with degraded rock water emulsion, so not only to facilitate the removal of the drill dust, but also to avoid the resulting dust content. The water emulsion is fed from the drilling machine through drill pipe 4 to the through hole 2.4 of the connector 2 and from there to the center channel 1.3 , further through the narrowed center channel 1.4 and injected above mentioned oblique openings 1.5 of the drill bit head 1.1 . The drilling dust flows from the excavation site through lateral recesses 1.9 of the drill head 1.1 of the drill bit 1, further through recesses 3.5 in the collar 3.2 of the cladding tube 3 .

Ferner rückt das Bohrmehl im geschlossen Raum zwischen Hüllroh 3 und Bohrgestänge 4, bis zum Ausgang des Bohrloches.Furthermore, the drill dust moves in the closed space between Hüllroh 3 and drill pipe 4, to the output of the borehole.

Die Einrichtung wirkt in dieser Weise, dass die Schlagbohrmaschine oder Schlag-Drehbohrmaschine die Schläge und Drehungen der angesetzten in ihrem Halter Bohrgestänge 4, das folgend die Schläge und Drehungen dem auf seinem Ende befestigten Verbinder 2, der ferner die Schläge und Drehungen, der an seinem Dorn 2.1 gelagerter Bohrkrone 1 überträgt, und diese mit ihrer Stirnseite 1.7, 1.6 in Einsätze von Hartmetallstifte 1.10 und/oder Kuppen 1.11 versehen an abgebauten Gestein schlagend, es zerkleinernd. Die zerkleinerte Elemente strömen unter Einfluss des Wasseremulsions in Richtung des Auslaufes des Bohrloches aus, und Bohrgestänge 4 unter Einfluss der ständigen durch Lafette an die Bohrmaschine ausgeübten Pressung verschiebt die Bohrkrone 1 nach vom, gleichzeitig nach vom das Hüllrohr 3 verschiebend, infolge der übertragenden Schlägen des Seitenabsatzes 2.2 des Verbinders 2 der Hinterseite 3.4 des Bundes 3.2. The device acts in this way that the percussion drill or percussion drill the beats and rotations of the scheduled in its holder drill pipe 4, the following the strokes and rotations of the fastened on its end connector 2, further the shocks and turns, at his Dorn 2.1 stored drill bit 1 transmits, and this provided with their front side 1.7, 1.6 in inserts of carbide pins 1.10 and / or dome 1.11 hitting broken rock, crushing it. The crushed elements flow under the influence of the water emulsion in the direction of Outlet of the well, and drill pipe 4 under the influence of the constant exerted by carriage to the drill press shifts the drill bit 1 from, at the same time by the sheath 3 shifting, due to the transmitted impacts of the side paragraph 2.2 of the connector 2 of the rear 3.4 of the covenant 3.2 ,

Als das ganze Bohrgestänge 4 und das ganze Hüllrohr 3 von am meisten 3 Metern lang in das Bohrloch praktisch von 15 Zentimetern Durchschnitt eingebracht werden, hält die Gewinnung an, trennt vom Halter der Bohrmaschine die Bohrgestänge 4 ab, dann zieht die Bohrmaschine zur Lafette zurück und an das Bohrgestänge 4 dreht ein neues, zweites oder nächstes Bohrgestänge an, das die Verlängerung des ersten Bohrgestänge 4 bildet und dieses zweite oder nächstes sich in die Bohrmaschine befestigt. Gleichzeitig an das erste Hüllrohr 3 an ihrem Ende mit einer Außengewinde 3.7 beendeten, dreht mit Innengewinde 3.8 das nächste Hüllrohr. Im Gegenteil zum ersten Hüllrohr 3 das zweite Hüllrohr und eventuell die nächste Hüllrohre sind schon ohne inneren Bund 3.2, da er schon überflüssig ist. In dieser Weise entstehen die Löcher in etwa waagerechte Position, die bis 15 Meter reichen, was bei den Hüllrohren und den Bohrgestängen von 3 Meter Länge, erlaubt einen Bohrsatz von fünf Abschnitten bestehenden, zu zusammensetzen. Nach Beendigung der Bohrung und Umwandlung der Drehungen von Bohrmaschine trennt die Bohrkrone 1 vom Verbinder 2 ab, und diese verbleibt in Bohrloch, hingegen Bohrgestänge 4 oder Satz von Bohrgestängen zieht vom Hüllrohr 3 oder vom Satz der Hüllrohre aus, das/die in gebohrtem Loch verbleibt/en. In die Hüllrohre bringt unter Druck erhärtende Substanz, die durch die in Hüllrohre ausgebildeten Löcher 3.9 austritt, verfüllt den Freiraum um diesen Rohre herum und erstarrt mit heimischen Erdreich, es verstärkend. Also die Ausführung des nächsten Loches erfordert eine Vorbereitung der neuen Bohrkrone und einen reihenfolgenden Satz von Hüllrohren, indem übrige Elemente, wenn sie nicht verschlissen wurden, benutzt man weiter.When the entire drill string 4 and the entire casing 3 of almost 3 meters long are introduced into the wellbore almost 15 centimeters in average, the extraction stops, disconnects from the holder of the drill from the drill pipe 4 , then the drill moves back to the gun carriage and the drill pipe 4 rotates a new, second, or next drill pipe forming the extension of the first drill pipe 4 and attaching this second or next to the drill. Simultaneously to the first cladding tube 3 ended at its end with an external thread 3.7 , with internal thread 3.8 turns the next cladding tube. In contrast to the first cladding tube 3, the second cladding tube and possibly the next cladding tubes are already without inner collar 3.2, since he is already superfluous. In this way, the holes arise in approximately horizontal position, ranging up to 15 meters, which in the cladding tubes and drill rods of 3 meters in length, allows a drilling kit of five sections to assemble. Upon completion of the drilling and conversion of the drill bores, the drill bit 1 disconnects from the connector 2 and remains in the borehole, however, drill pipe 4 or set of drill pipes extend from the casing 3 or the set of ducts remaining in the drilled hole / s. In the cladding brings hardening substance under pressure, which emerges through the holes formed in cladding holes 3.9 , filled the space around these pipes around and solidifies with domestic soil, it reinforcing. So the execution of the next hole requires a preparation of the new drill bit and a successive set of sheaths, by continuing to use the remaining elements, if they have not been worn out.

Claims (7)

  1. Apparatus for simultaneous drilling and casing of boreholes including a drilling bit (1) fixed on a coupler (2) that is subsequently rotationally connected with a drill rig (4) and at least one casing pipe (3) to encapsulate such a borehole, whereas the face plane of the drilling bit (1) is provided with sintered carbides (1.10, 1.11), and the drilling bit (1) is actuated via the coupler (2) which, in turn, is actuated by means of the drill rig (4), whilst the coupler (2) remains in percussive contact with the casing pipe (3), characterized in that the casing pipe (3) comprises, on its inner wall, a permanently fixed support flange (3.2), where the rear (bottom) surface (3.4) of that flange remains in percussion contact with a lateral haunch (2.2) of the coupler (2) and the ending section (3.10) of the casing pipe (3) embraces stem of the drilling bit (1.2) and reaches as far as up to the head (1.1) of the drilling bit (1), whilst the bottom surface (1.3.1) of the wider part of the inner opening (1.3) of the drilling bit (1), i.e. the surface that is adjacent to the face side (2.8) of the coupler (2), is inside the head of the drilling bit (1) in the transient area between the head (1.1) of the drilling bit (1) and the stem (1.2) of the drilling bit (1).
  2. Apparatus according to Claim 1, characterized in that the rear (bottom) surface (3.4) of the support flange (3.2) of the casing pipe (3), as well as surface of the lateral haunch (2.2) of the coupler (2) are skewed at a certain angle with regard to the central line of the apparatus, whereas the skewing angles of the both surfaces are identical.
  3. Apparatus according to Claim 1 or 2, characterized in that the casing pipe (3) is provided with a plurality of throughout openings (3.9) positioned down the casing pipe perimeter and its end is provided with a male thread (3.7) located at the side of connection with a subsequent casing pipe (5).
  4. Apparatus according to Claim 1, characterized in that the central opening (1.3) of the drilling bit (1) is wider in the area from the face plane of the rear side (1.12) to the transient point between the stem (1.2) and head (1.1) of the drilling bit and the central opening is shaped as splines, whilst the central opening (1.3) is narrowed within the remaining area, whereas that wider segment of the central opening (1.3) that is meant to mate the stem (2.1) of the coupler (2) is provided with lips (1.13) deployed along the perimeter of that segment.
  5. Apparatus according to Claim 1 or 2 or 4, characterized in that the coupler (2) is provided with a mandrel (2.1) that is provided with tongues (2.6) deployed on its lateral surface (2.5) and these tongues are meant to be in contact with lips (1.13) of the central opening (1.3) in order to secure connection between the drilling bit (1) and the stem (2.1) of the coupler (2) against unintentional disconnection.
  6. Apparatus according to Claim 1, characterized in that the central opening (1.3) of the drilling bit (1) is provided with a female thread (1.14) that mates the thread (2.7) of the stem (2.1) of the coupler (2).
  7. Apparatus according to Claim 1 or 4 or 5 or 6, characterized in that the narrowed part (1.4) of the central opening (1.3) is connected with skewed openings (1.5) made in the head (1.1) of the drilling bit (1), whereas the opening have their outlets on the flat face surface (1.7) of the said head (1.1) of the drilling bit (1), moreover, the head (1.1) of the drilling bit (1) is provided with an additional skewed opening (1.8) that lead backwards and is connected with a narrowed part (1.4) of the central opening (1.3), and has its outlet in one of lateral niches (1.9) of the drilling bit (1).
EP06460003A 2006-02-09 2006-02-09 Apparatus for simultaneously drilling and casing boreholes Active EP1818499B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT06460003T ATE520858T1 (en) 2006-02-09 2006-02-09 DEVICE FOR SIMULTANEOUS DRILLING AND LINEING OF DRILL HOLES
EP06460003A EP1818499B1 (en) 2006-02-09 2006-02-09 Apparatus for simultaneously drilling and casing boreholes
PL06460003T PL1818499T3 (en) 2006-02-09 2006-02-09 Apparatus for simultaneously drilling and casing boreholes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06460003A EP1818499B1 (en) 2006-02-09 2006-02-09 Apparatus for simultaneously drilling and casing boreholes

Publications (2)

Publication Number Publication Date
EP1818499A1 EP1818499A1 (en) 2007-08-15
EP1818499B1 true EP1818499B1 (en) 2011-08-17

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EP06460003A Active EP1818499B1 (en) 2006-02-09 2006-02-09 Apparatus for simultaneously drilling and casing boreholes

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EP (1) EP1818499B1 (en)
AT (1) ATE520858T1 (en)
PL (1) PL1818499T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3231980A1 (en) 2016-04-07 2017-10-18 Dywidag-Systems International GmbH Drilling head with a chisel holder and a method of assembling the same

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE0900215L (en) * 2009-02-19 2010-02-02 Sandvik Intellectual Property Start kit, feed pipe and starter rod for drilling equipment for striking rock drilling
AT508991B1 (en) * 2009-11-06 2012-09-15 Dywidag Systems Int Gmbh METHOD OF DRILLING, IN PARTICULAR PUNCHING OR TURNING OF HOLES IN GROUND OR ROCK MATERIAL AND DEVICE HIEFÜR
EP2878761B1 (en) * 2013-12-02 2016-08-24 Züblin Spezialtiefbau Ges.m.b.H. Annular bit for drilling a foundation, and a method for detaching an annular bit for drilling a foundation from a sunken tube
FI126596B (en) 2014-01-20 2017-02-28 Lehti Group Oy dRILL BIT
DE102015110582A1 (en) * 2015-07-01 2017-01-05 Werner Zimmer Method and device for forming a subterranean pipeline

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Publication number Priority date Publication date Assignee Title
US4919221A (en) * 1989-04-06 1990-04-24 Numa Tool Company Impact drill bit assembly and replaceable parts thereof
AU726332B2 (en) 1996-11-12 2000-11-02 Alwag Tunnelausbau Gesellschaft Mbh Process and device for simultaneously drilling and lining a hole
CA2240559C (en) * 1998-06-12 2003-12-23 Sandvik Ab Embankment hammer
FI20010699A0 (en) * 2001-04-04 2001-04-04 Jorma Jaervelae Method of drilling and drilling
SE519312C2 (en) * 2001-06-26 2003-02-11 Sandvik Ab Rock drilling tools for striking drilling as well as ring drill bit and drill adapter intended to be included in the drilling tool
AT500691B1 (en) 2003-10-08 2008-07-15 Alwag Tunnelausbau Gmbh METHOD AND DEVICE FOR DRILLING HOLES IN SOIL OR ROCK MATERIAL

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3231980A1 (en) 2016-04-07 2017-10-18 Dywidag-Systems International GmbH Drilling head with a chisel holder and a method of assembling the same

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Publication number Publication date
ATE520858T1 (en) 2011-09-15
EP1818499A1 (en) 2007-08-15
PL1818499T3 (en) 2011-11-30

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