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WO2018189273A1 - Dispositif de forage et procédé de creusement d'un puits de forage dans le sol - Google Patents

Dispositif de forage et procédé de creusement d'un puits de forage dans le sol Download PDF

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Publication number
WO2018189273A1
WO2018189273A1 PCT/EP2018/059343 EP2018059343W WO2018189273A1 WO 2018189273 A1 WO2018189273 A1 WO 2018189273A1 EP 2018059343 W EP2018059343 W EP 2018059343W WO 2018189273 A1 WO2018189273 A1 WO 2018189273A1
Authority
WO
WIPO (PCT)
Prior art keywords
drilling
borehole
soil
ground
drilling device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2018/059343
Other languages
German (de)
English (en)
Inventor
Steffen Praetorius
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.)
Herrenknecht AG
Original Assignee
Herrenknecht AG
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 Herrenknecht AG filed Critical Herrenknecht AG
Publication of WO2018189273A1 publication Critical patent/WO2018189273A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • E21D9/06—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
    • 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
    • E21D9/1093—Devices for supporting, advancing or orientating the machine or the tool-carrier
    • 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
    • E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
    • E21D9/124—Helical conveying means therefor

Definitions

  • the invention relates to a drilling device for creating a hole, in particular a blind hole, in the ground starting from a starting point to a target point along a drilling line with at least one first arranged on the front of the drilling device Bodenlierestoff for releasing the soil from a working face of the bore in the forward drive direction with at least one first receiving means for the dissolved soil (hereinafter cuttings), with at least one conveying means for removing the cuttings from the first receptacle out of the borehole.
  • a drilling device for creating a hole, in particular a blind hole, in the ground starting from a starting point to a target point along a drilling line with at least one first arranged on the front of the drilling device Bodenlierestoff for releasing the soil from a working face of the bore in the forward drive direction with at least one first receiving means for the dissolved soil (hereinafter cuttings), with at least one conveying means for removing the cuttings from the first receptacle out of the borehole.
  • cuttings dissolved soil
  • Also relevant to the invention is a propelling member for advancing and retracting a drilling apparatus, and a method for creating a bore, in particular a blind hole, in the ground from a starting point to a target point along a drilling line, where the ground is released along the drilling line by means of a boring device with the drilling apparatus being moved via propulsion elements, with a feed device at the starting point, in particular a press frame, along the drilling line to the destination point, and a drilling system for creating a hole, in particular a blind hole, in the ground starting from a starting point to a destination point along a drilling line ,
  • various types of tunnel boring machines are used as drilling devices depending on the soil or rock to be used.
  • Such drills are used when the drilling machine is advanced in advance without pilot drilling or the like along the drilling line. The movement can take place, inter alia, by advancing or pushing the pipe segments themselves outside the created tunnel.
  • a feed then takes place via a feed device, for example a so-called pipe thruster or a Press frame when individual pipe segments are pressed into the ground.
  • the release of the soil takes place with a drilling tool, such as a cutting wheel.
  • the loosened cuttings are brought by the drilling tool into an area behind the cutting wheel and carried away from there (for example, DE3514563A).
  • the choice of the type of drill is made depending on the geology.
  • the drilling process is affected by the presence of geologies that tend to swell or even dissolve when using water or the like, as is the case with clay, mudstone, salt or shale, for example.
  • dry boring methods usually only dry boring methods are used.
  • Wet drilling methods like HDD are ruled out here.
  • no bentonite suspension can be used to reduce skin friction during the advance of drill pipes as a well construction, for example in microtunneling. This significantly reduces the potential drill length and increases the risk of drilling down the wellbore due to trailing or convergence.
  • Such wells also called blind holes are used in particular in repositories to create from a distance below ground holes in which then hazardous materials such as radioactive materials may be stored in protective containers.
  • hazardous materials such as radioactive materials may be stored in protective containers.
  • the hole is created and then the drilling device must be removed from the hole again.
  • the drilling device When creating holes that are not continuous and possibly not accessible because of the diameter, it is problematic, the drilling device off again to remove the borehole. It is known to create such holes in which the drill is advanced by means of drill pipes analogous to the microtunnelling method of a route by means of press frame.
  • the drilling device has a cutting wheel with overcut. Furthermore, the cutting wheel is divided into two parts.
  • the drilling device optionally has an additional outer shell as a lost coat. When the target point is reached, the outer part is released from the cutting wheel and can remain in the ground.
  • the machine itself is separated from the outer shell and is pulled out of the borehole together with the inner cutter wheel through the drill pipes acting as a lost extension. This is complicated, expensive and associated with high costs. Convergences and debris can cause sticking during drilling.
  • the object of the invention is to overcome the aforementioned difficulties.
  • a drilling apparatus having at least one second soil dissolving means disposed at the rear of the drilling apparatus for releasing soil from the wall of the already established borehole in the retreating direction upon withdrawal from the borehole, with at least one second receptacle for receiving cuttings during the retreat of the boring cuttings Drilling device, and with at least one transport means for removing the cuttings from the at least one second receptacle to the conveyor or from the borehole out.
  • the second soil release agent may be a passive cutting edge or an active cutting ring.
  • a further teaching of the invention provides that the soil release agent in the advancing direction is a separating wheel in full section or partial section with a drive.
  • funding and rear transport each advantageously has its own drive.
  • the separation of drill head drive and conveyor drive is important in order to ensure the necessary torque at the drill head over long distances without the losses on the conveyor. It is also advantageous if the drilling head and means of transport can be operated independently of the conveying means by e.g. to loosen jammed boulders or break.
  • a further teaching of the invention provides that the conveying means are a screw conveyor, a liquid circuit with a pump, for example a centrifugal or jet pump, or a belt conveyor and / or that the transport means are a screw conveyor, a liquid circuit with a pump, a circulating conveying medium, in which the cuttings are conveyed by means of circulating vessels or paddles, or is a belt conveyor.
  • the conveying means are a screw conveyor, a liquid circuit with a pump, for example a centrifugal or jet pump, or a belt conveyor and / or that the transport means are a screw conveyor, a liquid circuit with a pump, a circulating conveying medium, in which the cuttings are conveyed by means of circulating vessels or paddles, or is a belt conveyor.
  • a further teaching of the invention provides that the drilling device is made up of several sections, that the soil release agent is arranged at the front section and that at least one control means, preferably in the form of at least one hydraulic cylinder, is provided between the front section and at least one further section of the drilling device ,
  • the drilling device is made up of several sections, that at one section the second soil solvent is arranged, and that at least one control means, preferably in the form of at least one hydraulic cylinder is provided between this and at least one further portion of the drilling device, which is arranged from the first soil release means behind the second soil release agent. This makes it possible to keep the drilling device or the rear-facing cutting device controlled on the desired axis.
  • a further teaching of the invention provides that a measuring device is provided at least at this further section for determining bottom projections of the borehole wall into the borehole or from loosened soil on the bottom of the borehole.
  • a measuring device is provided at least at this further section for determining bottom projections of the borehole wall into the borehole or from loosened soil on the bottom of the borehole.
  • the object is achieved by a method for creating a hole, in particular a blind hole, in the ground starting from a starting point to a target point along a drilling line, in which the soil along the drilling line by means of a drilling device, in particular a drilling device as described above, is achieved wherein the drilling device is moved via at least one propulsion element, in particular a propulsion element as described above, with a feed device at the starting point, in particular a press frame, along the drilling line to the target point, and in reaching the target point, the drilling device along the drilling line by removing the propulsion elements is retracted by means of the feed device, wherein upon retraction into the borehole protruding bottom projections of the borehole wall are released from a arranged at the back of the drilling device second soil solvent and thereby dissolved soil and more r dissolved soil located on the bottom of the borehole is taken up by the drilling device and transported away from the borehole.
  • a propulsion element in particular a propulsion element as described above
  • a further teaching of the invention provides that with a measuring device bottom projections of the borehole wall, which project into the borehole, or dissolved soil on the bottom of the borehole is determined, and / or that the position of the arranged at the back of the boring device second soil release means in relation on the Drilling and / or the optimal position of the borehole wall in the ground is controlled, wherein preferably the control takes place in dependence on the measurement result of the measuring device.
  • the position of the machine can be determined by the measuring device to the desired axis of the borehole.
  • monitoring of the nominal diameter in comparison to the actual diameter of the borehole is advantageous. This makes it possible to control the drilling device during retraction and so to keep the backward cutting device controlled on the desired axis.
  • the object is achieved by a drilling system for creating a bore, in particular a blind hole, in the ground, starting from a starting point to a target point along a drilling line, in particular according to a previously described method, with a previously described drilling device and at least one propulsion element described below.
  • the propelling member is a propelling member for advancing and retracting a drilling apparatus having a force transmitting member extending in the boring direction and having at its end portions a connecting member for releasably connecting with the drilling apparatus or other propelling elements, comprising at least one conveying element disposed in or is provided on the power transmission element, with at least one receptacle of supply lines, which is provided in or on the force transmission element, and with at least one moving element, via which the propulsion element is movable relative to the borehole wall in contact therewith, wherein the moving element via a spacer element on the Power transmission element is arranged.
  • the propulsion elements are designed such that they transmit the forces for propulsion and retreat, record the funding and the necessary lines for the operation of the drilling device.
  • the shape of the propulsion elements is designed so that the propulsion and retraction are also possible at Nachbruch and convergences in a certain extent. This is achieved in that the propulsion elements are not tubular and thus have no narrow annular gap to the mountains, but provide enough space to accommodate Nachbruch / pass or allow convergences.
  • the reduced contact area by the movement elements for example In the form of sliding elements such as skids or tubes in the lower area ensures a well calculable low skin friction between propulsion element and mountains.
  • Another teaching of the invention provides, with regard to the drilling system and the propulsion element, that the conveying element is a screw conveyor or a pipeline.
  • a further teaching of the invention provides, with regard to the drilling system and the drive element, that at least three spacer elements are radially arranged radially on the force transmission element.
  • a further teaching of the invention provides, with regard to the drilling system and the propulsion element, that at least one spacing element is designed to be adjustable in length during use in the borehole, in particular via a hydraulic cylinder. This makes it possible to control the drilling device or the rearward cutting device and to keep controlled on the target axis.
  • a further teaching of the invention provides, with regard to the drilling system and the propulsion element, that the propulsion element has at least one measuring device for determining soil projections of the borehole wall into the borehole or of dissolved soil on the bottom of the borehole.
  • the propulsion element has at least one measuring device for determining soil projections of the borehole wall into the borehole or of dissolved soil on the bottom of the borehole.
  • a further teaching of the invention provides, with regard to the drilling system and the propulsion element, that the propulsion element is designed such that the movement elements only selectively support the borehole wall in relation to the propulsion element.
  • 1 is a schematic sectional view of a drilling device according to the invention
  • 2 is a schematic sectional view of a driving element according to the invention
  • FIG. 3 is a front view of FIG. 2,
  • FIG. 4 is a schematic sectional view of a drilling device according to the invention and a propulsion element according to the invention with control and measuring device according to the invention,
  • FIG. 5 is a front view of FIG. 2 with measuring device
  • Fig. 1 1 is a schematic representation of a well with Nachfall and convergence
  • Fig. 12 is a schematic representation of a borehole after performing the method according to the invention.
  • Fig. 1 shows a schematic sectional side view of a drilling device according to the invention 10.
  • This has a first soil release agent 1 1 in the form of a front cutting wheel.
  • the cutting wheel 1 1 is driven by a drive 12.
  • a first receptacle 13 is provided for receiving the detached from the cutting wheel 1 1 soil, which is described below as cuttings.
  • the conveyor 15 is arranged on the rear side 14 of the drilling apparatus 10 for the removal of the cuttings from the first receptacle 13 from the borehole 100 out.
  • a second soil dissolving means 16 is arranged on the rear side 14 of the drilling apparatus 10 for releasing soil from the wall 101 of the already created borehole 100 in the withdrawal direction during the withdrawal from the borehole 100.
  • the second soil release agent 16 is designed here as a circumferential annular cutting edge which is arranged diagonally.
  • the second soil release agent / the annular cutting edge 16 can also serve to receive replacements 103 or cuttings located on the sole 102. This passes into a second receptacle 17. In this engages a possibly separate powered transport 26 here in Form of circulating paddle to receive and request the cuttings placed there, preferably in the conveyor 15 through the opening 18.
  • the cutting wheel 1 1 is arranged on a first portion 19. This is movably provided with respect to the second section 20 via control cylinders 21.
  • the conveyor 15 is driven by a drive 22.
  • the transport means 26 has its own drive 24.
  • the conveying means 15 has on the rear side 14 a connection 23 in the form of a flange for a driving element 30 according to the invention.
  • a laser target 25 for direction monitoring of the pipe jacking is arranged in the area of the annular cutting edge 16.
  • FIG. 2 shows a propulsion element 30 according to the invention.
  • This has a central force transmission element 31 extending in the excavation device.
  • the power transmission element 31 in each case has a connection 32 in the form of a flange.
  • the propulsion element 30 can be connected with its connections 32 to the drilling device 10 according to the invention or to other propulsion elements 30.
  • This provides a connection with which both tensile and compressive forces can be transmitted.
  • a receptacle 33 is provided, in which, for example, supply lines 34 (see Figure 3) are arranged.
  • the receptacle 33 is preferably designed so that the supply lines 34 can be inserted into the receptacle 33.
  • For the Texas33 is executed u-shaped and can be closed with a lid 35.
  • At the force transmission element 31 here preferably star-shaped spacer elements 36 are arranged, at the end of which movement elements 37 are preferably designed here as a tube.
  • the movement elements 37 are here sliding elements over which the drive element 30 along the borehole 100 can be moved. Holes are provided in the connection 32, into which bolts 38 for producing the connection of the individual connection elements 32 with one another can be introduced.
  • FIG. 4 shows a drilling device 10 according to the invention with connecting elements 30 arranged thereon and behind.
  • the drilling device 10 and the Connecting elements 30 are arranged in the borehole 100.
  • the first propulsion element 30 thereby represents a control and measuring element.
  • the spacer elements 36 are provided with hydraulic cylinders 39, so that they can be changed in their length in the direction of arrow A.
  • the first propulsion element 30 acts as a kind of third section 27 of the drilling device 10th If the boring device 10 is retracted in the direction of the arrow B via the driving elements 30, the cuttings 103 located on the sole 102 can be conveyed into the second receptacle 17 in the direction of the arrow via the annular cutting edge 16.
  • the moving elements 37 are moved in the direction of arrow A. As a result, the moving elements 37 are either moved away from the conversion 101 of the borehole or pressed into this. As a result, the position of the force transmission element 31 changes, whereby the position of the annular cutting edge 16 with respect to the wall 101 is also moved directly in the direction of the arrow A.
  • FIGS. 4 and 5 show a measuring device 40, which is arranged circumferentially on the force transmission element 31.
  • the contour of the borehole 100 can be measured. It can thus breakouts 104 and, for example, caused by convergence projections 105 are detected.
  • Based on the measurement data of the measuring device 40 can then be controlled via the hydraulic cylinder, the position of the annular cutting edge 16 so that when retracting an optimal borehole shape with respect to the intended hole line can be created.
  • FIG. 11 shows a borehole 100 with outbreaks 104 and protrusions 105 with respect to the borehole conversion 101.
  • cuttings 103 are located on the bottom 102 of the borehole 100.
  • the borehole 100 is cleared of cuttings 103 102.
  • the projections 105 which were caused by convergence or sources, peeled off by the annular cutting edge 16 on the drilling apparatus 10 and the cuttings 103 incurred thereby also carried away.
  • a press frame 50th be introduced as feed and retraction element, as shown in Figure 13.
  • the press frame 50 is arranged in an underground section 120 of a repository mine from which the bore 100 is generated.
  • the arrangement of the press frame 50 in the path 120 is also shown in FIG.
  • the press frame 50 is aligned in the direction of a Bohrlochansatziss 106.
  • the drilling device 10 is arranged in the press frame 50 in the direction of the Bohrlochchansatzis 106 (see Figure 7).
  • the press frame 50 pushes the boring device 10 in the direction of the drilling line D (see FIG. 8) until there is sufficient space in the area of the press frame 50 to arrange the first driving element 30 (see FIG. 9).
  • the first drive element 30 is then pushed by the press frame 50 with its front terminal 32 against the terminal 23 and the two elements are connected with bolts 38.
  • the supply lines 34 are inserted into the receptacle 33.
  • the receptacle 33 is then closed with the lid 35.
  • the feed element 30 and the drilling device 10 is advanced through the press frame in the drilling direction D for creating the borehole 100, until again sufficient space for another driving element 30 in the region of the press frame 50 is. This is repeated until the borehole 100 has arrived at the destination point.
  • the driving elements 30 and the drilling device 10 are withdrawn via the press frame 50 in the direction of arrow B, as shown in FIG. 4, the borehole 100 being straightened by means of the annular cutting edge 16 with respect to the nominal line.
  • the cuttings 103 located on the sole 102 are received by the drilling device 10.
  • the feed elements 30 are successively removed and further retracted from the press frame in the direction of arrow B in the route 120 inside.
  • the invention can be used in particular in non-accessible diameter ranges up to diameters, from which, for example, segment lining can be used. However, this is not restrictive.
  • the invention can also be applied from a launch pit or the like above ground.
  • Drilling device 50 press frame first soil solvent / front 100 wellbore

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Earth Drilling (AREA)

Abstract

L'invention concerne un dispositif de forage permettant de creuser un puits de forage (100) dans le sol, à partir d'un point de départ (120) jusqu'à un point cible le long d'une ligne de forage, comportant : au moins un premier moyen de dégagement du sol (11), disposé sur la face avant du dispositif de forage (10), destiné à dégager le sol d'un front d'abattage du puits de forage dans la direction du creusement lors du creusement ; au moins un premier dispositif de réception (13) du sol dégagé (suivant les déblais de forage) ; au moins un moyen de convoyage (15), destiné à enlever des déblais de forage du premier dispositif de réception (13) hors du trou de forage, caractérisé en ce que le dispositif de forage est pourvu : d'au moins un deuxième moyen de dégagement du sol (16), disposé sur la face arrière (14) du dispositif de forage (10), destiné à dégager le sol de la paroi (101) du trou de forage déjà creusé dans la direction de rétraction lors de la rétraction hors du trou de forage ; d'au moins un deuxième dispositif de réception (17), destiné à recevoir des déblais de forage lors de la rétraction du dispositif de forage ; d'au moins un moyen de transport (26), destiné à enlever des déblais de forage de l'au moins un deuxième dispositif de réception (17) vers le moyen de convoyage (15) ou hors du trou de forage.
PCT/EP2018/059343 2017-04-12 2018-04-11 Dispositif de forage et procédé de creusement d'un puits de forage dans le sol Ceased WO2018189273A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP17166397.4 2017-04-12
EP17166397.4A EP3388620B1 (fr) 2017-04-12 2017-04-12 Dispositif de forage et procédé de production d'un trou dans le sol

Publications (1)

Publication Number Publication Date
WO2018189273A1 true WO2018189273A1 (fr) 2018-10-18

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PCT/EP2018/059343 Ceased WO2018189273A1 (fr) 2017-04-12 2018-04-11 Dispositif de forage et procédé de creusement d'un puits de forage dans le sol

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EP (1) EP3388620B1 (fr)
WO (1) WO2018189273A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110541716A (zh) * 2019-09-29 2019-12-06 中铁工程装备集团有限公司 可渣水分离的u型密闭螺机防喷涌系统及防喷涌方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112814694B (zh) * 2021-01-05 2022-07-29 中铁十九局集团轨道交通工程有限公司 一种土体松动机构及螺旋输送机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4274675A (en) * 1978-08-26 1981-06-23 Paurat F Shaft-sinking apparatus with milling head and central worm conveyor
DE3514563A1 (de) 1985-04-23 1986-10-30 Strabag Bau-AG, 5000 Köln Tunnelvortriebsmaschine
GB2254092A (en) * 1991-03-26 1992-09-30 Westfalia Becorit Ind Tech Apparatus for and process of laying of pipelines in the ground
EP2206876A1 (fr) * 2008-12-23 2010-07-14 Soletanche Freyssinet Tête de forage pour machine de forage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4274675A (en) * 1978-08-26 1981-06-23 Paurat F Shaft-sinking apparatus with milling head and central worm conveyor
DE3514563A1 (de) 1985-04-23 1986-10-30 Strabag Bau-AG, 5000 Köln Tunnelvortriebsmaschine
GB2254092A (en) * 1991-03-26 1992-09-30 Westfalia Becorit Ind Tech Apparatus for and process of laying of pipelines in the ground
EP2206876A1 (fr) * 2008-12-23 2010-07-14 Soletanche Freyssinet Tête de forage pour machine de forage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110541716A (zh) * 2019-09-29 2019-12-06 中铁工程装备集团有限公司 可渣水分离的u型密闭螺机防喷涌系统及防喷涌方法
CN110541716B (zh) * 2019-09-29 2020-08-28 中铁工程装备集团有限公司 可渣水分离的u型密闭螺机防喷涌系统及防喷涌方法

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Publication number Publication date
EP3388620B1 (fr) 2019-09-11
EP3388620A1 (fr) 2018-10-17

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