WO2002040819A2 - Verfahren zum herstellen einer erdbohrung sowie vortriebsmaschine zur durchführung von erdbohrungen - Google Patents
Verfahren zum herstellen einer erdbohrung sowie vortriebsmaschine zur durchführung von erdbohrungen Download PDFInfo
- Publication number
- WO2002040819A2 WO2002040819A2 PCT/AT2001/000341 AT0100341W WO0240819A2 WO 2002040819 A2 WO2002040819 A2 WO 2002040819A2 AT 0100341 W AT0100341 W AT 0100341W WO 0240819 A2 WO0240819 A2 WO 0240819A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- driving machine
- machine according
- face
- drilling
- partition
- Prior art date
Links
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
- E21B7/04—Directional drilling
- E21B7/06—Deflecting the direction of 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/06—Deflecting the direction of boreholes
- E21B7/068—Deflecting the direction of boreholes drilled by a down-hole drilling motor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0642—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield having means for additional processing at the front end
- E21D9/065—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield having means for additional processing at the front end with devices for provisionally supporting the front face
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
- E21D9/087—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines
- E21D9/0873—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines the shield being provided with devices for lining the tunnel, e.g. shuttering
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
- E21D9/124—Helical conveying means therefor
Definitions
- the present invention relates to a method for producing an earth borehole, in particular a directional horizontal borehole, in which the borehole is carried out with the aid of a driving machine arranged on a drill pipe with a preferably pivotable cutting shoe, and in which the soil mined on the working face is transported away through the drill pipe against the drilling direction is and a tunneling machine for performing this method with a cutting shoe which is preferably pivotably arranged on a protective tube and a conveying tube arranged inside the protective tube for removing the soil which has been mined on the face against the drilling direction.
- Microtunneling is a controlled press drilling.
- the tunneling machine consists of a cutting shoe, which is arranged at the front end of a protective tube. 'Proceeds in the tube and in the cutting shoe a screw conveyor, which transported the crushed material opposite to the advancing direction through the tube.
- the drill head is arranged on the front part of the screw conveyor directly in front of the cutting shoe.
- the cutting shoe is preferably hydraulically adjustable.
- the cutting shoe is adjustably mounted on the protective tube via a bearing and can be tilted relative to the protective tube by means of several hydraulic cylinders.
- electronic or optical measuring devices are usually arranged behind the driving machine. This task can be performed, for example, by a laser beam, which is irradiated from behind into the protective tube parallel to the screw conveyor and strikes a kind of target behind the tunneling machine.
- a matrix-shaped arrangement of photodiodes can serve as a target, with the aid of which the deviation of the laser beam from its target position is determined and a corresponding correction of the Position of the cutting shoe is made.
- These measuring and control devices in the driving machine require different supply lines for electrical energy or compressed air to drive the hydraulic cylinders.
- the feed lines are routed in channels to the rear end of the protective tube, which means an increased outlay when drilling the hole.
- a drilling method or a driving machine for horizontal bores is provided to facilitate the execution of the drilling, in which the measuring and control devices are supplied with energy by the rotation of the screw conveyor. This eliminates the annoying supply cables and hoses from the rear end of the protective tube.
- the object of the present invention is to provide a method of the type specified above, which is also in loose and coarse soil, even below the water table can be carried out quickly and easily. Furthermore, the object of the invention is to provide a tunneling machine for carrying out this method. The disadvantages of known methods or systems should be avoided or at least reduced.
- the object of the invention is achieved in that compressed air for displacing groundwater and loose soil is led to the working face via lines running inside the drill pipe. Due to the overpressure prevailing at the face, the groundwater and the loose soil surrounding the cutting shoe are pushed back, so that the drilling can be carried out quickly and easily.
- the mined material is counter to the drilling direction by the drill pipe, for example with the help of a screw conveyor or the like. transported against the direction of drilling, whereby no groundwater or drilling fluid has to be conveyed and therefore no elaborate disposal of the groundwater or flushing agent has to take place in the starting pit.
- the cavity created by the overpressure on the face makes it possible to carry out the drilling under visual control and thus react more quickly to unpredictable ground conditions or obstacles.
- the visual inspection can be carried out, for example, with a camera attached to the face or by a skilled worker in the tunneling machine.
- the compressed air is preferably fed to the working face with an overpressure of 0.1 to 0.5 bar.
- the necessary overpressure depends on the respective groundwater level and the nature of the soil, experience has shown that around 0.1 bar overpressure per meter of groundwater level is necessary.
- the object of the invention is also achieved by a driving machine for carrying out earth bores, in particular directed horizontal bores of the type specified, in which at least one compressed air line is provided to generate an overpressure to displace groundwater and loose soil on the face and a partition to maintain the overpressure. Due to the pressure-tight partitioning, the overpressure built up on the face via the compressed air supply lines cannot escape against the drilling direction via the drill pipe, which effectively displaces the groundwater and loose material on the face without the use of liquid media takes place. As a result, neither groundwater nor drilling fluid has to be fed via the screw conveyor or the like. transported away from the drilling direction and disposed of. The overpressure is advantageously generated with the aid of a compressor located in the starting pit.
- a window is arranged in the partition. Through this window, an optical control on the face is possible, which was not possible until now due to the existing groundwater or drilling mud.
- a camera can be installed behind the window, which directs the signals to a monitor located in the launch pit.
- the cutting shoe can be controlled to maintain the desired drilling direction.
- At least one further partition is arranged within the protective tube to form a lock chamber.
- the working chamber located behind the working face which is under excess pressure, can be made accessible to personnel.
- the windows in the partitions are apparently designed so that the respective devices located behind the windows can be made accessible, for example, for maintenance or repair.
- the overpressure on the working face can be continuously monitored and, if necessary, regulated by changing the power of the compressor to generate the positive pressure.
- a device for covering a part of the cross section of the delivery pipe is provided in the delivery pipe.
- the partial covering thus achieves an accumulation of the removed material, which forms a kind of stopper that serves to maintain the overpressure on the working face.
- This cover device is advantageously formed by an essentially circular cover with a radial slot. This represents a simple and effective implementation option the covering means.
- any material jams that may occur can be remedied by opening the cover, thus ensuring smooth functioning.
- a screen on the or each partition can be used to cover the cross-section of the conveyor pipe to isolate the face area from the surroundings. As a result, the overpressure prevailing at the working face can be maintained.
- the diaphragm is formed by two essentially semicircular plates which are preferably arranged so as to be pivotable by means of hydraulic cylinders via joints.
- An improvement in the driving performance and the handling of obstacles can be achieved by arranging a rotatably mounted cutting tool on the cutting shoe.
- This device achieves a combination of the partial cutting machine in which the cutting shoe is at a standstill and a full cutting machine in which the cutting shoe rotates.
- a cutting tool is provided which covers only a small part of the cross section of the driving machine when it is at a standstill. In the event of an obstacle, the cutting shoe can be rotated, thus making it easier to overcome the obstacle.
- the cutting tool can be connected in a rotationally fixed manner to a conveyor screw arranged in the conveyor tube, for example via a cardan shaft *.
- the cardan shaft can be connected to a corresponding coupling to control the rotation of the cutting tool. It is also conceivable to step up or step down the rotation of the screw conveyor via a correspondingly designed gear.
- the drilling process can be lubricated effectively.
- the working face is sealed by this lubrication and the overpressure cannot over the Remove the space between the casing of the drill pipe and the surrounding soil.
- Fig. 1 shows schematically a Hörizontalbohrvorgang under one
- Figure 2 shows an embodiment of the tunneling machine according to the present invention in cross section.
- 3a and 3b show two embodiments of the tunneling machine according to FIG. 2 in the view in the direction of arrow III in FIG. 2; 4 shows a section through the tunneling machine according to FIG. 2 along the section line IV-IV;
- FIG. 1 shows the principle of a controlled horizontal drilling under a river 1.
- Directional control is required when drilling through the soil under a river bed, as otherwise the curved course cannot be realized.
- a so-called starting pit 2 is usually assumed and the drilling is carried out with the aid of a driving machine 4 attached to a drill pipe 5.
- the corresponding control devices 3 are arranged in the starting pit 2, with which a direction correction of the driving machine 4 can be carried out.
- the rotation of the drill pipe 5 is suspended, for example, and a directional correction is achieved by hydraulically pressing the drill pipe 5 forward by correspondingly orienting the preferably hydraulically adjustable cutting shoe located on the driving machine.
- a target pit 6 is usually built, in which the disassembly of the tunneling machine 4 and the mounting of an expanding head for the so-called expanding process, which takes place in the opposite direction to the drilling process, is carried out can be (not shown).
- a so-called product tube is usually pulled into which cables or the like can then be pulled.
- the mined material is combined with any Groundwater or a liquid drilling fluid is transported in the opposite direction to the drilling direction in the starting pit 2, from where it with appropriate pumps or the like. has to be removed. After common drilling fluids such. B ' .
- Bentonite or polymers which are treated as special waste and have to be disposed of accordingly, are very expensive.
- control of the driving machine 4 is associated with high tolerances, since the nature of the soil to be drilled is unknown and cannot be checked optically due to the prevailing groundwater level or due to the drilling fluid on the face. For this reason, in the drilling method according to the invention, an overpressure is generated on the face using compressed air, which pushes back the groundwater and thus enables constant visual control in the area of the face, provided that the necessary equipment, such as windows or cameras, is provided.
- Fig. 2 shows an embodiment of a driving machine 4 according to the invention in cross section, which consists of a protective tube 7, on which the cutting shoe 8 is arranged so as to be adjustable by means of corresponding hydraulic cylinders 9.
- a conveyor tube 10 is arranged, in which a screw conveyor 11 is rotatably arranged. Via the rotating screw conveyor 11, the material mined on the • face .0 is transported backwards into the starting pit 2 against the drilling direction.
- the cutting shoe 8 is in the so-called partial cutting machine like the protective tube 7 at a standstill. The advance takes place by material degradation via the conveyor tube 10 and by appropriate advance of the protective tube 7 in the drilling direction.
- the protective tube 7 is provided with a corresponding partition 12 which prevents the overpressure on the face O from being reduced.
- the compressed air lines 31 are arranged from the starting pit 2 next to the delivery pipe 10 in the protective pipe 7.
- a window 13 is arranged on the partition 12.
- the optical inspection on the face O can be carried out with the aid of a camera or by personnel working over the protective tube 7 can reach the face O next to the conveyor pipe 10.
- a corresponding pressure sensor 32 can be arranged in the tunneling machine to control the overpressure on the working face.
- at least one additional partition 14, 15 must be provided to form a lock chamber 16.
- windows 17, 18 are also advantageously arranged, which are obviously designed to enable access for personnel.
- the window 13 in the partition 12 can obviously be designed so that access to the face 0, for example for maintenance of the cutting shoe 8 or the like. , becomes possible.
- Fig. 3a shows a view of the driving machine 4 in the direction of arrow III from Fig. 2.
- This view shows the protective tube 7 and the delivery tube 10 arranged within the protective tube 7, in which the screw conveyor 11 is rotatably arranged and the window 13 according to the invention in the Foreclosure 12.
- the window 13 is formed by a circular sector. Other designs such as round or rectangular windows are also possible.
- the window 13 is formed, for example, from plexiglass or real glass, which has a thickness so that the window 13 can withstand the prevailing pressure difference.
- Fig. 3b shows a compared to FIG. 3a extended embodiment of the driving machine 4, in which a screen 19 is arranged in the partition 12, which serves to close the delivery pipe 10 when the screw conveyor 11 is retracted.
- the diaphragm 19 is formed by two essentially semicircular plates 20, 21, which are connected to the partition 12 via corresponding joints 22, 23 and can be pivoted, for example, via hydraulic cylinders 24, 25, so that the delivery pipe 10 can be opened becomes.
- Fig. 4 shows a sectional illustration of the driving machine 4 from FIG. 2 along the section line IV-IV.
- a cover 26 is arranged in the delivery tube 10, which has a radial slot 27.
- the cover 26 serves to deliberately achieve a congestion in the conveying of the removed material by forcing the material through the slot 27.
- the material pressed in this way thus forms a seal for the face O against the pressure conditions prevailing in the starting pit 2.
- 5 and 6 show a modified variant of a driving machine 4, in which a rotatably mounted cutting tool 28, such as a knife, is arranged on the cutting shoe 8.
- the rotation of the cutting tool 28 is preferably derived from the rotation of the screw conveyor 11 by a cardan shaft 29.
- This embodiment represents a combination of a partial cutting machine with a full cutting machine. Because the cutting tool 28 covers only a small area of the cross section of the driving machine 4, an optical control of the face O via the window 13 in the partition 12 is also possible here.
- the cutting tool 28 can further improve the drilling effect, in particular in the case of obstacles in the ground. After the processing and removal of the obstacle, the rotation of the cutting tool 28 is stopped by appropriate means, such as a clutch, in the propeller shaft 29 (not shown) and switched on again if necessary.
- Holes 30 in the protective tube 7 can further improve the drilling process by passing the compressed air from the inside to the outside through these holes 30 and in addition a liquid lubricant can be introduced so that the bore is lubricated and at the same time a seal of the protective tube 7 with respect to the surrounding one Soil is effected.
- a liquid lubricant can be introduced so that the bore is lubricated and at the same time a seal of the protective tube 7 with respect to the surrounding one Soil is effected.
- other methods can also be used.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2002210236A AU2002210236A1 (en) | 2000-11-14 | 2001-10-22 | Method for producing a bore and advancing machine for boring |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT19152000 | 2000-11-14 | ||
ATA1915/2000 | 2000-11-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002040819A2 true WO2002040819A2 (de) | 2002-05-23 |
WO2002040819A3 WO2002040819A3 (de) | 2002-09-19 |
Family
ID=3689309
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AT2001/000341 WO2002040819A2 (de) | 2000-11-14 | 2001-10-22 | Verfahren zum herstellen einer erdbohrung sowie vortriebsmaschine zur durchführung von erdbohrungen |
Country Status (2)
Country | Link |
---|---|
AU (1) | AU2002210236A1 (de) |
WO (1) | WO2002040819A2 (de) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8256536B2 (en) | 2009-02-11 | 2012-09-04 | Vermeer Manufacturing Company | Backreamer for a tunneling apparatus |
CN101608550B (zh) * | 2009-07-16 | 2012-09-05 | 上海地铁盾构设备工程有限公司 | 一种应用于盾构机上的观察窗装置 |
CN103867125A (zh) * | 2014-03-08 | 2014-06-18 | 湘潭大学 | 一种小型全电动非开挖水平定向钻机 |
CN112196545A (zh) * | 2020-03-04 | 2021-01-08 | 中铁工程装备集团有限公司 | 一种利用激光和高压风射流破岩的无滚刀硬岩掘进机 |
CN112196552A (zh) * | 2020-03-04 | 2021-01-08 | 中铁工程装备集团有限公司 | 一种利用激光和超临界二氧化碳破岩的无滚刀硬岩掘进机 |
DE102021125286A1 (de) | 2021-09-29 | 2023-03-30 | Hans-Peter Uffmann | Verfahren zur Abraumkontrolle beim Vortrieb in Erdreich sowie Vortriebseinrichtung |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT405078B (de) | 1996-10-18 | 1999-05-25 | Alois Pichler | Verfahren zur energieversorgung von mess- und/ oder steuereinrichtungen im bereich des bohrkopfes von vortriebsmaschinen für bohrungen sowie vortriebsmaschine mit einer einrichtung zur durchführung dieses verfahrens |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2705950A1 (de) * | 1977-02-12 | 1978-08-17 | Polensky & Zoellner | Verfahren und vorrichtung zum vorpressen eines rohres |
DE3015580C2 (de) * | 1980-04-23 | 1986-07-31 | Ed. Züblin AG, 7000 Stuttgart | Vortriebsschild |
US5203614A (en) * | 1991-06-17 | 1993-04-20 | The Robbins Company | Tunneling machine having liquid balance low flow slurry system |
JP2768104B2 (ja) * | 1992-01-23 | 1998-06-25 | 株式会社大林組 | 起泡剤を使用した機械式シールド掘進方法 |
DE4213987C2 (de) * | 1992-04-29 | 2002-06-27 | Herrenknecht Gmbh | Fördereinrichtung für eine Schildvortriebsmaschine zum Bohren von Tunnelstrecken |
DE4225121A1 (de) * | 1992-07-30 | 1994-02-03 | Westfalia Becorit Ind Tech | Verfahren und Einrichtung zur Abstützung der Ortsbrust beim Schildvortriebs- oder Rohrvorpreßverfahren |
EP0768447A1 (de) * | 1995-10-09 | 1997-04-16 | Smet-Tunnelling N.V. | Verfahren und Schildvortriebsmaschine für den Tunnelbau |
NL1015324C2 (nl) * | 1999-11-11 | 2001-05-14 | Ballast Nedam Infra B V | Inrichting en werkwijze voor het boren in een ondergrond. |
-
2001
- 2001-10-22 WO PCT/AT2001/000341 patent/WO2002040819A2/de active Application Filing
- 2001-10-22 AU AU2002210236A patent/AU2002210236A1/en not_active Abandoned
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT405078B (de) | 1996-10-18 | 1999-05-25 | Alois Pichler | Verfahren zur energieversorgung von mess- und/ oder steuereinrichtungen im bereich des bohrkopfes von vortriebsmaschinen für bohrungen sowie vortriebsmaschine mit einer einrichtung zur durchführung dieses verfahrens |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8256536B2 (en) | 2009-02-11 | 2012-09-04 | Vermeer Manufacturing Company | Backreamer for a tunneling apparatus |
US8439450B2 (en) | 2009-02-11 | 2013-05-14 | Vermeer Manufacturing Company | Tunneling apparatus including vacuum and method of use |
US8684470B2 (en) | 2009-02-11 | 2014-04-01 | Vermeer Manufacturing Company | Drill head for a tunneling apparatus |
CN101608550B (zh) * | 2009-07-16 | 2012-09-05 | 上海地铁盾构设备工程有限公司 | 一种应用于盾构机上的观察窗装置 |
CN103867125A (zh) * | 2014-03-08 | 2014-06-18 | 湘潭大学 | 一种小型全电动非开挖水平定向钻机 |
CN112196545A (zh) * | 2020-03-04 | 2021-01-08 | 中铁工程装备集团有限公司 | 一种利用激光和高压风射流破岩的无滚刀硬岩掘进机 |
CN112196552A (zh) * | 2020-03-04 | 2021-01-08 | 中铁工程装备集团有限公司 | 一种利用激光和超临界二氧化碳破岩的无滚刀硬岩掘进机 |
CN112196545B (zh) * | 2020-03-04 | 2022-03-04 | 中铁工程装备集团有限公司 | 一种利用激光和高压风射流破岩的无滚刀硬岩掘进机 |
DE102021125286A1 (de) | 2021-09-29 | 2023-03-30 | Hans-Peter Uffmann | Verfahren zur Abraumkontrolle beim Vortrieb in Erdreich sowie Vortriebseinrichtung |
Also Published As
Publication number | Publication date |
---|---|
AU2002210236A1 (en) | 2002-05-27 |
WO2002040819A3 (de) | 2002-09-19 |
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