WO2007144953A1 - Dispositif et procédé destinés à creuser une cavité et un trou - Google Patents

Dispositif et procédé destinés à creuser une cavité et un trou Download PDF

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Publication number
WO2007144953A1
WO2007144953A1 PCT/JP2006/312069 JP2006312069W WO2007144953A1 WO 2007144953 A1 WO2007144953 A1 WO 2007144953A1 JP 2006312069 W JP2006312069 W JP 2006312069W WO 2007144953 A1 WO2007144953 A1 WO 2007144953A1
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WO
WIPO (PCT)
Prior art keywords
outer cylinder
rod
core
cylinder
annular slit
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/JP2006/312069
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English (en)
Japanese (ja)
Inventor
Yoshitaka Saito
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.)
Hirado Kinzoku Kogyo Co Ltd
Original Assignee
Hirado Kinzoku Kogyo Co Ltd
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 Hirado Kinzoku Kogyo Co Ltd filed Critical Hirado Kinzoku Kogyo Co Ltd
Priority to PCT/JP2006/312069 priority Critical patent/WO2007144953A1/fr
Publication of WO2007144953A1 publication Critical patent/WO2007144953A1/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
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
    • E21B7/025—Rock drills, i.e. jumbo drills

Definitions

  • the present invention relates to an excavator used for excavating a horizontal hole or a borehole in a rock, for example, and an excavation method using the excavator.
  • a guide cell provided in Japanese Patent No. 291 5029 to be able to move forward and backward at the tip of a boom mechanism provided in a traveling device.
  • a guide pipe arranged to be able to move forward and backward by a centralized tiger and guide pipe revolving and moving device provided in the guide cell, and a main body part is attached to the rear end of the guide pipe, and
  • a continuous drilling device is described in which the rod is slidably and rotatably supported at a position where the central force of the guide pipe is eccentric, and the crushing depth of the bit is equal to or less than the striking bounce amount of the rod.
  • a rod having a drilling bit at the tip is horizontally extended, and a drilling bit is used to drill a small hole in the rock by the operation of the proximal end excavator, and the drilling bit is swung in a ring shape
  • an annular slit made up of a collection of fine holes that are connected in a ring shape is formed in the rock mass, and then a horizontal rock hole core is formed by taking out the rock core of the core formed by the annular slit to the outside.
  • the driving force from the excavator can be sufficiently transmitted to the bit at the tip even when the initial depth of excavation is shallow.
  • the transmission power is reduced and the desired depth is reduced There was a possibility that the driving force could not be obtained.
  • the present invention can solve the above-mentioned problems, can completely prevent the rod including the excavation bit from being damaged from the collapse of the rock core, and can ensure the normal operation of the rod and the excavation bit. At the same time, it is an object of the present invention to provide a long horizontal hole and pit digging apparatus and method.
  • the first configuration of the present invention is to form a substantially horizontal annular slit in the rock by rotating and advancing a drilling bit provided at the tip of a rod disposed substantially horizontally in an annular shape.
  • the present invention relates to a horizontal hole excavating apparatus characterized in that a core rock core formed by an annular slit is inserted and accommodated in a core cylinder arranged concentrically and a long horizontal hole is excavated. .
  • a second configuration of the present invention is the length of the horizontal hole to be excavated in the first configuration described above, in which the rod having the excavation bit at the tip and the core support cylinder that accommodates the rock mass are provided. This means that it can be distracted accordingly.
  • a third configuration of the present invention includes an outer cylinder made of a long cylindrical body capable of moving back and forth substantially horizontally toward a wall surface to be excavated in the rock, and an inner cylinder along the inner peripheral surface of the outer cylinder.
  • a rod having an axis that is eccentric from the axis of the outer cylinder, a drilling bit that is attached to the front end of the mouth that projects forward from the front end of the outer cylinder, and a rear end of the rod.
  • a drive unit constituting an excavator together with the rod and the excavation bit; a rotating device that integrally rotates the outer cylinder and the excavation bit around an axis of the outer cylinder; the outer cylinder and the excavation bit; And an advancing / retreating device that integrally advances and retracts toward the wall to be excavated, and concentrically disposed in the outer cylinder, and the diameter of the inner peripheral edge is formed on the wall to be excavated by turning the excavating bit.
  • a core support cylinder that has a diameter larger than the outer peripheral edge of the annular slit and a diameter smaller than that of the outer peripheral edge of the annular slit, and drives the rotating device to drive the excavation bit.
  • the rock core formed by the annular slit is transported rearward through the inside of the core support cylinder and can be discharged to the outside. is there.
  • the fourth configuration of the present invention is to form a substantially vertical annular slit in the rock by rotating and lowering a drill bit provided at the tip of the rod arranged substantially vertically, and
  • the present invention relates to a borehole excavator characterized in that a core rock core formed by an annular slit is inserted and accommodated in a core cylinder disposed concentrically and a long borehole is drilled. .
  • a rod having the excavation bit at a tip thereof and a core support cylindrical body that accommodates the rock mass are set to the length of the pothole to be excavated. This is because it can be distracted accordingly.
  • a sixth configuration of the present invention includes an outer cylinder made of a long cylindrical body capable of moving back and forth substantially vertically toward a wall surface to be excavated in the rock, and an inner cylinder along the inner peripheral surface of the outer cylinder.
  • a rod having an axis that is eccentric from the axis of the outer cylinder, a drilling bit that is attached to the front end of the mouth that projects forward from the front end of the outer cylinder, and a rear end of the rod.
  • a drive unit constituting an excavator together with the rod and the excavation bit; a rotating device that integrally rotates the outer cylinder and the excavation bit around an axis of the outer cylinder; the outer cylinder and the excavation bit; And an advancing / retreating device that integrally advances and retracts toward the wall to be excavated, and concentrically disposed in the outer cylinder, and the diameter of the inner peripheral edge is formed on the wall to be excavated by turning the excavation bit.
  • the outer circumference of the annular slit is larger than the outer peripheral diameter.
  • a core support cylinder whose diameter is smaller than the diameter of the outer peripheral edge of the annular slit, drives the rotating device to rotate the excavation bit around the axis of the outer cylinder, and drives the advance / retreat device
  • the outer cylinder and the excavation bit are advanced and the excavation bit is hit against the excavation bit by the drive unit to form an annular slit on the excavation wall surface.
  • a borehole excavation device characterized in that the rock core formed by the transfer can be transferred rearward through the inside of the core support cylinder and discharged to the outside.
  • the seventh configuration of the present invention is to form a substantially horizontal annular slit in the rock by rotating and moving an excavation bit provided at the tip of a rod arranged substantially horizontally in an annular shape.
  • the present invention relates to a horizontal hole excavation method in which a core rock core formed by an annular slit is inserted and accommodated in a core cylinder arranged concentrically and a long horizontal hole is excavated.
  • an annular slit is formed while forming a substantially vertical annular slit in the rock by rotating and lowering a drill bit provided at the tip of a rod arranged substantially vertically.
  • a core drilling method for excavating a long borehole by inserting and accommodating a core rock core formed by an annular slit in a core cylinder arranged concentrically with the core.
  • the present invention has the following effects.
  • the rod and core support cylinder of the horizontal hole excavator or the borehole excavator are configured to be distractable, a horizontal hole having a constant depth is excavated by the rod and core support cylinder of the original length. After that, if the rod and core support cylinder of the current length are respectively extended, the side hole can be drilled deeper by that amount. In this way, the rod and core support cylinders are connected one after the other and extended one after another by other methods in order to make long horizontal holes.
  • the rock core at the core of the annular slit formed by rotating the rod is lengthened along with the extension of the rod, but the elongated rock core is extended along with the rod. Since it is housed in the core support cylinder, the long rock core does not interfere with the swiveling rod and has the effect of not hindering excavation work.
  • the rod having the excavation bit at the distal end is extracted after the excavation or descent excavation until the proximal end of the rod having the initial length is inserted into the annular slit.
  • the core support cylinder that houses the rock core can be further extended by a predetermined method and further excavated, so that it is possible to easily excavate long horizontal holes or boreholes to a desired length.
  • the rock core at the core of the annular slit formed by swirling the rod is lengthened along with the extension of the rod, and the long rock core with the extension of the rib is in the core support cylinder that is extended with the rod.
  • the long rock core does not interfere with the swiveling rod so that it does not interfere with excavation work.
  • FIG. 1 is an overall explanatory view of a horizontal hole excavating device according to the present invention.
  • FIG. 2 is an overall side view of an excavator having a rod.
  • FIG. 3A is a cross-sectional front view of the outer cylinder rotation holding portion.
  • FIG. 3B is an explanatory cross-sectional view showing the relationship between the core support cylinder, the annular slit, and the rock core of the core part.
  • FIG. 4 is an overall longitudinal cross-sectional explanatory view centering on the excavation part of the horizontal hole excavation apparatus according to the present invention.
  • FIG. 5 is a longitudinal sectional explanatory view of a core chuck portion mounted on a core support cylinder.
  • FIG. 6 A vertical cross-sectional explanatory view centering on the assembly part of the midway outer cylinder, midway core support cylinder and midway rod.
  • FIG. 7 is a front view of the tip support flange.
  • FIG. 8 is a front view of the proximal support flange.
  • FIG. 9 is a front view of a cylinder locking ring fitted to the inner peripheral surface of the proximal end support flange.
  • FIG. 10 is a front view of a state in which a reinforcing plate is stretched on the other end support flange.
  • FIG. 11 is a front view of a packing interposed between the flanges.
  • FIG. 12 is a front view of a midway support flange disposed on the inner peripheral wall of the central portion of the proximal end outer cylinder.
  • FIG. 13 is a front view of the proximal collar.
  • FIG. 14A is a cross-sectional side view showing a procedure of a method for separating each rod.
  • FIG. 14B is a cross-sectional side view showing a procedure of a method for separating each rod.
  • FIG. 14C is a cross-sectional side view showing the procedure for separating each rod.
  • FIG. 15 is an explanatory diagram showing the procedure of the side hole excavation method.
  • the inner peripheral edge of the core support cylinder is larger than the inner peripheral edge of the annular slit formed by turning the excavation bit, and the outer peripheral edge of the core support cylinder is outside the annular slit.
  • the core rock core formed by the annular slit is automatically stored in the core support cylinder, and the core support cylinder together with the outer cylinder is in the annular slit. It is constructed so that it will not interfere with the excavation advance.
  • the circular excavation bit provided at the tip of the rod arranged substantially horizontally turns and advances in an annular shape to form a substantially horizontal annular slit in the rock.
  • the core support cylinder arranged concentrically with the slit is configured to insert and receive the core rock core formed by the annular slit to excavate a long horizontal hole.
  • a rod having a drill bit at the tip and a core support cylinder that accommodates the rock core can be extended according to the length of the horizontal drilling hole.
  • a long horizontal hole is formed in the rock by extending a rod having a drill bit at the tip and a core support cylinder that accommodates the rock core according to the length of the desired horizontal hole. easily Cutting possible.
  • the rod and core support cylinder can be connected to and disconnected from the excavator, respectively, and a desired rod and core support cylinder separately prepared can be interposed between them. By doing so, the entire length can be freely extended.
  • the pit digging device and the pit digging method using the pit digging device are such that the above digging device is used in the vertical direction so that a long pit is excavated in the rock with the same configuration. is there.
  • the horizontal hole excavation apparatus and the horizontal hole excavation method using the apparatus according to the present invention are configured as described above. When excavating a long horizontal hole using such a horizontal hole excavation apparatus, first, A horizontal hole is excavated using a horizontal hole excavator having a pivotable initial length rod and a concentric core support cylinder in an annular slit.
  • annular slit having a rock core is formed in the center while an annular striking trace is generated in the rock by rotating the excavation bit at the tip of the rod to form an annular slit, and the rod and core support cylinder of the initial length are formed.
  • the rock core at the core of the annular slit is inserted and accommodated in the core support cylinder, and a horizontal hole having an initial length of the annular slit is formed in the rock.
  • the horizontal hole excavating apparatus In addition to the horizontal hole excavating apparatus according to the present invention and the horizontal hole excavating method using this apparatus, if a horizontal hole excavating apparatus is used in the vertical direction and an annular slit in the vertical direction is excavated in the rock, the horizontal hole is formed as a dredging excavator. As with the excavation, the hole excavation work can be performed.
  • the side hole excavator A of the present embodiment is configured by connecting a hydraulically driven excavator 3 via a boom 2 in front of the traveling device 1 that can move forward and backward and turn.
  • a support base 4 that is rotatable in the vertical direction is provided at the tip of the boom 2, and the excavator 3 is slidably mounted on the upper surface of the support base 4.
  • the excavator 3 is configured to advance and retract by an advance / retreat mechanism 5 fixed on the support 4.
  • the advance / retreat mechanism 5 includes a round pipe-shaped chain case 6, a rotating chain 7 that is rotatably housed in the chain case 6, and an intermediate part of the rotating chain 7.
  • the slide body 8 is fixed to the section and moves forward and backward by the rotation of the rotating chain 7.
  • the slide body 8 slides on the upper surface of the chain case 6 by the operation of the rotating chain 7.
  • 9 is
  • 1 shows a hydraulic drive motor for driving a chain.
  • the excavator 3 is also configured to move forward and backward as the slide body 8 of the advance / retreat mechanism 5 moves forward and backward.
  • the excavator 3 is composed of an excavator 13 (see Fig. 2) configured by extending a rod 11 having a hard material excavating bit 10 attached to the tip thereof from the drive unit 12, and the rod extended from the drive unit 12 11 is held and accommodated inside a horizontal outer cylinder 14.
  • the rod 11 integrated with the excavator 3 also moves forward together with the outer cylinder 14.
  • three excavators 13 are arranged and held at an equal angle inside the outer cylinder 14.
  • the excavator 3 and the outer cylinder 14 that move forward and backward integrally are configured to be further rotatable integrally. That is, an outer cylinder rotation holding portion 15 that rotates and holds the outer cylinder 14 and an excavator rotation holding portion 16 that rotates and holds the rear end of the excavator 3 are arranged at the front and rear portions on the slide body 8. By installing, the outer cylinder 14 and the excavator 3 are mounted on the slide body 8 so as to be rotatable together.
  • An outer cylinder driving section 17 as shown in FIG. 3 is attached to the outer cylinder rotation holding section 15 of the outer cylinder 14. That is, a drive chain 18 is suspended on the outer peripheral surface of the outer cylinder 14, and the chain 18 is linked to a hydraulic drive motor 19 mounted on the slide body 8 on the lateral side of the outer cylinder 14. Thus, the outer cylinder 14 can be rotated, and at the same time, the excavation apparatus 3 is also rotated together with the outer cylinder 14 via the holding body 20.
  • 21 is the chain on the front end of the outer cylinder 14.
  • An outer cylinder support ring for rotatably supporting the front end of the case 6 is shown.
  • the core support cylinder 22 is concentrically with the central portion of the outer cylinder 14 as shown in FIGS. 3A, 3B, and 4. It is arranged.
  • the inner peripheral edge 22a of the core support cylinder 22 is formed by turning the excavation bit 10, and the outer peripheral edge 22b of the core support cylinder 22 is larger than the inner periphery C1 of the annular slit C and the annular slit C. Therefore, the core rock core D formed by the annular slit C is automatically stored in the core support cylinder 22 and is supported as the excavation progresses. Since the cylindrical body 22 can enter the annular slit C together with the outer cylinder 14, the cylindrical body 22 is configured so as not to interfere with the advancement of excavation.
  • the outer cylinder 14 includes a base end outer cylinder 23 that is pivotally held by the outer cylinder pivot holding portion 15, and a distal end outer cylinder 24 that is detachably connected to the distal end thereof.
  • the initial excavation work is performed by connecting the proximal outer cylinder 23 and the distal outer cylinder 24 connected to the distal end.
  • the proximal outer cylinder 23 and the distal outer cylinder 24 are separated once, and one or more intermediate half cylinders 25 are provided between them, and the distal outer cylinder 24 and the middle outer cylinder 25 are provided. This is used as a long outer cylinder 14 in which the base end outer cylinder 23 is connected and integrated.
  • the distal end outer cylinder 24, the proximal end outer cylinder 23, and the halfway outer cylinder 25 are configured to be connectable and separable, and the halfway outer cylinder 25 is attached to the desired length of the excavation lateral hole. Whether to intervene is selected.
  • the midway outer cylinder 25 has a midway core support cylinder 27 accommodated concentrically at its center.
  • a core chuck portion 28 for holding the rock core D when the midway outer tube 25 is removed from the annular slit C is provided at the front portion of the midway core support tube 27.
  • the core chuck portion 28 includes a cylindrical case ring 29 having an inner peripheral surface with a tapered surface at the tip end, and a tapered surface with a proximal end thickness at the outer peripheral surface.
  • Has notch 30 in The chuck ring 31 performs the tightening function when the chuck ring 31 slides in the case ring 29 that is formed by the cylindrical chuck ring 31 and the contact surfaces thereof are reversely tapered. It is configured to grab.
  • 36 is a cylinder locking ring fitted on the inner peripheral surface of the annular proximal support flange 33 (see Fig. 9), and the open end of the mid-core support cylinder 27 is fitted.
  • An annular flange 35 is provided to stop.
  • annular distal end support flange 32 and the annular proximal end support flange 33 respectively connected to the front part and the rear part of the midway outer cylinder 25 are provided with insertion notches 54 for inserting the midway rod 112.
  • a working window 55 is formed on the front peripheral wall of the halfway outer cylinder 25 so as to be attached to and detached from the other outer cylinders 24, 25, and a tool is used from this working window 55.
  • the mid-core support cylinder 27 is housed and fixed in the mid-cycle outer cylinder 25, and is configured to rotate integrally with each other and move forward and backward.
  • the tip outer cylinder 24 connected to the tip of the halfway outer cylinder 25 or the base end outer cylinder 23 will be described.
  • the tip core support cylinder 34 is housed and fixed inside,
  • a proximal end support flange 33 is connected to the proximal end of the tube 24,
  • an annular distal end support flange 32 '(see FIG. 10) is connected to the distal end of the distal end outer tube 24, and
  • a core chuck portion 28 is connected to the front portion.
  • the distal end support flange 32 ′ and the proximal end support flange 33 are provided with threading cutouts 54 for threading the distal end rod 111.
  • 38 is the tip support The reinforcing plate stretched around the holding flange 32 'is shown.
  • the front end support flange 32 ′ is configured such that the front end support flange 32 is thick and the end surface on the front end side can be stretched with a reinforcing plate 38.
  • the tip rod 111 having the excavation bit 10 protrudes from the tip, and the outer cylinder 14 that rotates and the rod 11 that performs excavation work excavate the annular slit C in the rock B. It is configured to be possible.
  • proximal outer cylinder 23 connected to the proximal end of the halfway outer cylinder 25 or the distal outer cylinder 24 is the other middle outer cylinder 25 or the distal end in that it is pivotally held by the outer cylinder rotation holding portion 15. It has a different configuration from the outer cylinder 24, and an annular tip support flange 32 is provided at the tip opening, an intermediate support flange 39 is provided in the middle, and an annular proximal flange 40 is provided at the rear opening, A proximal core support cylinder 41 is housed and fixed in the proximal outer cylinder 23 via the distal support flange 32 and the midway support flange 39.
  • the proximal end core support cylinder 41 is interposed between the distal end support flange 32 and the midway support flange 39, and the distal end support flange 32, the midway support flange 39, and the proximal end collar 40 are not connected to the base end support flange 41.
  • a through hole 43 for inserting the end rod 113 is provided.
  • a work window 55 is formed on the front peripheral wall of the base end outer cylinder 23 so as to be attached to and detached from the distal end outer cylinder 24 or the halfway outer cylinder 25, and a tool is used from the work window 55.
  • a bolt operation for separating and connecting the proximal end support flange 33 of the distal end outer cylinder 24 or the intermediate outer cylinder 25 and the distal end support flange 32 of the proximal end outer cylinder 23 is performed.
  • the distal outer cylinder 24, the intermediate outer cylinder 25, and the proximal outer cylinder 23 are respectively housed and fixed in the distal core supporting cylinder 34, the intermediate core supporting cylinder 27, and the proximal core supporting cylinder 27. 41 and detachable from each other, and if necessary, the intermediate cylinder 25 and the intermediate core support cylinder 27 may be interposed between the distal outer cylinder 24 and the proximal outer cylinder 23 or removed as necessary. It is configured to be able to
  • the distal end support flange 32 of the proximal end outer cylinder 23 and the proximal end support flange 33 of the intermediate outer cylinder 25 are connected integrally with the bolt 42 via the packing 46, Also inside The distal end support flange 32 of the outer cylinder 25 and the distal end outer cylinder 24 are connected integrally to the proximal end support flange 33 of the base end 24 by a bolt 42 via a packing 46.
  • the intermediate outer cylinder 25 and the proximal outer cylinder 23 are integrally connected, and the excavation length is increased by the amount of the intermediate outer cylinder 25 and the intermediate core support cylinder 27 interposed. Is possible.
  • the distal outer cylinder 24, the intermediate outer cylinder 25, and the proximal outer cylinder 23 can be integrally connected by the bolts 42 via the flanges 32 and 33 to form a long outer cylinder 14.
  • the core support cylinders 34, 27, and 41 housed in the outer cylinders 24, 25, and 23 are integrally connected together with the integral connection of the outer cylinders 14.
  • the outer cylinders 24, 25, 23 are integrally connected by connecting the flanges 32, 33 provided at the front and rear end portions, the outer cylinders 24, 25, 23 are interposed between the flanges 32, 33 at the front and rear end portions.
  • the core support cylinders 34, 27, and 41 are also connected together. In this way, the core support cylinder 22 is housed in the inner cylinder 14 in a state where the core support cylinder 22 is passed from the distal end to the base end, and a space for accommodating the rock core D is formed in the outer cylinder 14. It will be.
  • the distal end support flanges 32, 32 ′ connected to the ends of the distal outer cylinder 24, the intermediate outer cylinder 25, and the proximal outer cylinder 23, respectively.
  • the base end support flange 33 is provided with a notch 54 for passing through the rod, and the packing 46 and the reinforcing plate 38 (see FIG. 10) between the joined flanges 32 and 33 are respectively provided with openings.
  • the force and rod 11 can be extended in accordance with the extension of the outer cylinder 14 and the core support cylinder 22, and are configured to be connectable and separable in the same manner as the outer cylinder 14 and the core support cylinder 22. ing.
  • the rod 11 is divided into three parts, a front end rod 111, a halfway rod 112, and a proximal end rod 113, in accordance with the distal end outer cylinder 24, the halfway outer cylinder 25, and the proximal end outer cylinder 23.
  • Each of the rods 111, 112, 113 is configured to be separable in the vicinity of each connecting portion of the distal end outer cylinder 24, the intermediate outer cylinder 25, and the proximal end outer cylinder 23.
  • both ends of each of the rods 111, 112, and 113 are gradually tapered toward the tip, and a tapered separation protrusion 44 having a step with a smaller diameter is further provided at the tip. (See Figure 14).
  • Disassembly tool insertion holes 48 are formed in the side walls at both ends of the connection cap 45, and the insertion holes 48 communicate with the inner part of the rod insertion recess 47, and the tool is inserted through the disassembly tool insertion hole 48.
  • the rod 111, 112, 113 comes into contact with the tip of the separation protrusion 44 and the rod 111, 112, 113 is retracted in the backward direction.
  • reference numeral 57 denotes a rod work window formed on the peripheral wall of the outer cylinder 14 for performing the above work.
  • the distal end rod 111 and the proximal end rod 113 configured as described above are, for example, rod insertion recesses at both ends of the connection cap 45. Connect the tip end of the base rod 113 and the base end of the tip rod 111 to 47 by tightly inserting them. Tip rod 111 and midway rod 112, midway rod 112 and base end The connection with the rod 113 is the same.
  • the rod 11 is pressed against the rock surface by the excavator 13, so the ends of the rods 111, 112, 113 are tightly attached to the rod insertion recess 47 of the connection cap 45.
  • the two are connected together by simply inserting them, and the excavating energy is sufficiently transmitted from the excavator 13 through the connecting cap 45 to the series of rods 11 before and after.
  • reference numeral 56 denotes a sunk plug for closing the disassembling tool insertion hole 48 after the connection work.
  • Disassembling tool 49 The tip has a tapered surface 51 that is thin toward the tip, and the tapered surface 51 is inserted into the gap between the separation projection 44 end surface of each rod 111, 113 and the back of the rod insertion recess 47.
  • the separating projection 44 is separated and removed from the rod insertion recess 47 of the connecting cap 45 by the action of the taper, so that the rods 111 and 113 can be separated from each other.
  • the rods 111, 112, and 113 are configured to be connectable and separable via the connection cap 45. Therefore, according to the connection and separation of the outer cylinder 14 and the core support cylinder 22 The length can be adjusted.
  • the traveling device 1 is actuated to move the excavator 3 to a position facing the board surface, and the excavator 13 protruding from the opening of the outer cylinder 14 while adjusting the vertical and horizontal positions IJ bit 10 To be at the desired excavation position (see Fig. 15 (a)).
  • the outer cylinder 14 includes a distal outer cylinder 24 and a proximal outer cylinder 23.
  • the inner peripheral edge of the core support cylinder 22 is larger than the inner peripheral edge of the annular slit C formed by the turning of the digging IJ bit 10, and the core support cylinder. Since the outer peripheral edge of 22 is configured to be smaller than the outer peripheral edge of the annular slit C, the core rock core D formed by the annular slit C can be accommodated in the core support cylinder 22 and excavated. The core support cylinder 22 can enter the annular slit C and move forward together with the outer cylinder 14 as it progresses.
  • the long rock core D formed as a result of the excavation progresses is sequentially stored in the core support cylinder 22 as the excavation progresses.
  • the rod 11 extending between the core support cylinder 22 and the rod 11 that does not interfere with the rod 11 can be safely and efficiently excavated without being bent or broken.
  • the work of separating the distal end outer cylinder 24 and the proximal end outer cylinder 23 is performed by removing the bolts 42 from the work window 55 located near the connecting portion of the proximal end outer cylinder 23, and removing each outer cylinder.
  • the flanges 33 and 32 at the ends of 24 and 23 are separated from each other.
  • the distal end rod 111 and the proximal end rod 113 extended into the outer cylinders 24 and 23, Isolate. That is, the bolt 42 is removed from the work window 55 of the proximal end outer cylinder 23 (see FIG. 14 (a)), and then the sinking plug 56 is removed from the disassembly tool insertion hole 48 (see FIG.
  • the integral connection work of the rod 11 inside the outer cylinder 14 is also performed. That is, a midway rod 112 having a connection cap 45 at the tip is stored in advance between the midway outer tube 25 and the midway core support tube 27, and the tip of the midway outer tube 25 and the tip outer tube 24 are When joining to the base end, connect the base end of the tip rod 111 in the tip outer cylinder 24 to the rod insertion recess 47 of the connection cap 45 attached to the tip of the middle rod 112 in the half way outer cylinder 25. By inserting, the connection between the rods 111 and 112 is completed.
  • the midway outer cylinder 25 is connected between the distal end outer cylinder 24 and the proximal end outer cylinder 23, and the core support cylinders 34, 27, 41 and the rods 111, 112, 113 are also If the connection is established, preparation for excavation of the long horizontal hole is completed, and if the excavation is resumed here, the rod 11 having the excavation bit 10 at the tip will be excavated further to the inner part of the annular slit C. Become.
  • the annular slit C is formed deeper and the rock core D is also elongated, and the long rock core D is a long core extended with the connection of the outer cylinders 24, 25, 23. It is inserted and accommodated in the support cylinders 34, 27, 41.
  • the excavator 3 is retracted by the traveling device 1.
  • a core chuck portion 28 is provided at the tip of the mid-core support cylinder 27 in the midway outer cylinder 25. Therefore, the rock core D remaining inside the mid-core support cylinder 27 can be securely pressed by the core chuck portion 28 and discharged out of the side hole.
  • the specific operation of the core chuck portion 28 will be described.
  • the case ring 29 is also retracted together.
  • the chuck ring 31 is aligned with the inner peripheral taper surface of the case ring 29.
  • the chuck ring 31 slides as a reverse taper surface on the outer peripheral taper surface, and the chuck ring 31 is tightened in the center direction by the thick taper surface of the case ring 29 through the notch 30, and the inside of the core support cylinder 22
  • the rock core D will be tightened
  • the embodiment of the side hole excavator A described above relates to the structure and method of excavating a side hole in the rock mass B.
  • the embodiment of the borehole excavator in the case of excavating a hole in the rock mass B will be described. Is also applicable.
  • the outer cylinder 14, the core support cylinder 22, the excavation apparatus 3 such as the mouth 11 in the horizontal hole excavation apparatus A of the above embodiment is installed in the vertical direction, and the outer cylinder 14, the core support 22, the rod 11 can be connected and separable.
  • the outer cylinder 25 one by one between the distal end outer cylinder 24 and the base end outer cylinder 23, the entire length of the outer cylinder 14 is extended. If the long hole is drilled by lowering the hole further to the bottom, the embodiment of the side hole drilling device A and Similar effects can be obtained.
  • the present invention can be suitably used for various excavating apparatuses in which a horizontal hole or a borehole is provided in a rock or the like.

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

Abstract

La présente invention concerne un dispositif et un procédé destinés à creuser une longue cavité et un trou dans lesquels une tige pourvue d'une partie de forage ne subit pas de dommages, provoqués par la chute d'une carotte de roche, et qui peuvent garantir les opérations classiques de la tige et de la partie de forage. La partie de forage disposée à l'extrémité de la tige, qui est généralement installée horizontalement ou verticalement, tourne de manière annulaire et se déplace ou s'abaisse vers l'avant, ce qui permet de créer une fente annulaire généralement horizontale ou verticale dans une roche. La carotte de roche d'une partie carotte, formée dans la fente annulaire, est insérée dans un corps de carotte cylindrique disposé de manière concentrique par rapport à la fente annulaire afin de creuser une longue cavité.
PCT/JP2006/312069 2006-06-15 2006-06-15 Dispositif et procédé destinés à creuser une cavité et un trou Ceased WO2007144953A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2006/312069 WO2007144953A1 (fr) 2006-06-15 2006-06-15 Dispositif et procédé destinés à creuser une cavité et un trou

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2006/312069 WO2007144953A1 (fr) 2006-06-15 2006-06-15 Dispositif et procédé destinés à creuser une cavité et un trou

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WO2007144953A1 true WO2007144953A1 (fr) 2007-12-21

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017167780A3 (fr) * 2016-03-29 2018-01-04 Herrenknecht Ag Tube de forage ainsi que système et procédé de pose d'une canalisation

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03172494A (ja) * 1989-11-30 1991-07-25 Hirado Kinzoku Kogyo Kk 連続さく孔方法および連続さく孔装置
JPH11236709A (ja) * 1998-02-20 1999-08-31 Atec Yoshimura:Kk 磁石を使用した内管回転防止型コアチューブサンプラ

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03172494A (ja) * 1989-11-30 1991-07-25 Hirado Kinzoku Kogyo Kk 連続さく孔方法および連続さく孔装置
JPH11236709A (ja) * 1998-02-20 1999-08-31 Atec Yoshimura:Kk 磁石を使用した内管回転防止型コアチューブサンプラ

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017167780A3 (fr) * 2016-03-29 2018-01-04 Herrenknecht Ag Tube de forage ainsi que système et procédé de pose d'une canalisation
AU2017242438B2 (en) * 2016-03-29 2020-05-14 Herrenknecht Ag Drill pipe, and system and method for laying a pipeline
EP4435226A3 (fr) * 2016-03-29 2024-12-18 Herrenknecht Aktiengesellschaft Tube de forage ainsi que système et procédé de pose d'une canalisation

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