KR101545686B1 - Indicator and reference hall generation method using the same - Google Patents

Indicator and reference hall generation method using the same Download PDF

Info

Publication number
KR101545686B1
KR101545686B1 KR1020150059605A KR20150059605A KR101545686B1 KR 101545686 B1 KR101545686 B1 KR 101545686B1 KR 1020150059605 A KR1020150059605 A KR 1020150059605A KR 20150059605 A KR20150059605 A KR 20150059605A KR 101545686 B1 KR101545686 B1 KR 101545686B1
Authority
KR
South Korea
Prior art keywords
reference hole
rod
hole
rock
line
Prior art date
Application number
KR1020150059605A
Other languages
Korean (ko)
Inventor
이상휴
이전희
Original Assignee
주식회사 기술나라
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 주식회사 기술나라 filed Critical 주식회사 기술나라
Priority to KR1020150059605A priority Critical patent/KR101545686B1/en
Application granted granted Critical
Publication of KR101545686B1 publication Critical patent/KR101545686B1/en

Links

Images

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C15/00Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
    • G01C15/002Active optical surveying means
    • G01C15/004Reference lines, planes or sectors
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling

Landscapes

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

Abstract

The method includes the steps of: displaying one or more baselines having a predetermined length in a rocking arm to maintain a horizontal position with a rod of a rocking arm drilling a rock; Moving the rod of the rock drill forward along the baseline to form at least one reference hole in the rock; When one side of the guide unit is inserted into the reference hole, the other side of the guide unit is inserted into the rod of the rocker arm, and the rod of the rocker arm moves forward along the reference hole formed beforehand to be spaced apart from the reference hole by a predetermined distance, And a reference hole forming method using the same.

Description

[0001] The present invention relates to a reference system for forming a free surface and a reference hole forming method using the same,

The present invention provides a method of drilling a rock drill, comprising: displaying at least one baseline having a predetermined length in the rock drill to maintain a horizontal alignment with a rod of the drill bit drilling to form a free surface in the rock; Moving the rod of the rock drill forward along the baseline to form at least one reference hole in the rock; When one side of the guide unit is inserted into the reference hole, the other side of the guide unit is inserted into the rod of the rocker arm, and the rod of the rocker arm moves forward along the reference hole formed beforehand to be spaced apart from the reference hole by a predetermined distance, And a reference hole forming method using the same.

In general, various civil engineering works or construction works are accomplished by removing various types of ground.

In general, heavy equipment such as forklra is applied to remove the ground of the trencher. However, to remove rocks and the like which are difficult to apply these general heavy equipment, a crushing operation using explosives or a crushing device using hydraulic pressure is applied.

At this time, the crushing work using the explosives may cause civil complaints due to excessive vibration, noise, stones, and dust, and there is a fear of damage to peripheral structures and safety accidents, and therefore, the use thereof in urban areas is extremely limited.

In order to compensate for the problem of crushing work using explosives, hydraulic crushing equipment has been introduced. However, since this method forms one free surface in the tunnel and vertical work, the construction period is delayed due to a decrease in the construction efficiency The construction cost was too high to be used because of the increase in the construction cost.

In order to overcome such a problem, a conventional approach to close-cut rock cutting method is disclosed in Korean Patent No. 765938. As shown in FIG. 1, a rocking drill bit 2 is used for cutting a rock block 3 And a reference hole 1b is formed in the next primary hole 3a in the longitudinal direction at one side of the reference groove 1 as an insertion groove 1a. After inserting the drill bit 2 into the concave groove 1a of the reference bar 1 and inserting the reference bar 1 inserted into the primary hole 3a Is inserted into the secondary hole (3a), the tertiary hole (3a) is again drilled, the reference piece (1) inserted into the secondary hole is taken out and inserted into the tertiary hole (3a) (3) is continuously formed after the step (3a) is formed.

However, in the rock incision cutting method as described above, the rock bolt 2 is attached to the rock mass 3 after the reference bar 1 having the concave groove 1a is prepared, and the hole 3a is continuously formed. It is difficult to uniformly cut the rock by the formation of the uneven grooves 1a.

In addition, when the drill bit 2 is positioned at the correct position, the drill bit 2 moves due to the stress generated on the arm while performing the drilling operation, which makes precise drilling impossible, There is a disadvantage to be.

SUMMARY OF THE INVENTION It is an object of the present invention to overcome the above-mentioned problems of the prior art by providing a precise incision line to enable uniform incision of the rock, to prevent the drilling position of the reference hole from being deformed according to the working conditions, And a method of forming a reference hole using the free surface and the incision line using the free surface and the reference surface, in which a reference hole forming operation in a horizontal or vertical direction is accurately performed and an operation of forming a free surface and an incision line is facilitated.

In order to achieve the above object, according to the present invention, there is provided a drill rig, comprising: a body supported by a horizontal holding means on a reference surface such that a plurality of reference holes drilled by a rock drill are parallel to each other in a horizontal or vertical direction; And a reference line display means connected to the variable block and installed to display a reference line having a predetermined length.

The horizontal holding means is provided with three or more support plates threadedly engaged with the bottom surface of the main body so as to adjust the height and two or more leveling members installed on the top surface of the main body in different directions.

In addition, the lifting and lowering means includes at least three guide rods, a fixing plate for supporting the guide rods at a position apart from the main body, a screw bar rotatably supported on the fixing plate and rotated as a motor provided in the main body, And a nut provided on the variable block so as to be engaged with the screw bar while being slid in the guide rod.

Meanwhile, in the present invention, at least one reference line having a predetermined length is displayed on the rod so as to be parallel to the rod of the rocking arm so as to form a reference hole for forming a free surface, and then the rod of the rocking arm is advanced so as to be parallel to the reference line, ;

A rod of the rock drill moved in parallel with the reference hole which is moved in the horizontal or vertical direction of the rock by moving the rod of the rock drill moved parallel to the reference hole and being parallel to the reference hole drilled beforehand in the rod of the rock drill, And forming at least one reference hole parallel to each other when the rod of the rocket arm is advanced to be parallel to the other reference line to form another reference hole in the vertical or horizontal direction of the rock,

The reference line displaying step and the reference hole forming step are repeated to form a plurality of reference holes parallel to each other in the horizontal or vertical direction,

The other side of the guide unit is inserted into each reference hole formed by the reference line, and the other side of the guide unit is inserted into the rod of the rocker arm. Then, the rocker arm moves forward along the reference line to form one or more second reference holes,

The reference line provides a reference hole forming method using a reference plane for forming a free surface that causes a reference line having a predetermined length to be displayed on at least one of rock masses having a rocking arm and an incision line by a linear laser positioned on a reference plane.

The guiding unit of the present invention is a guiding unit for guiding the guide surface of the guiding unit by using a reference surface for forming a plurality of reference holes parallel to each other with a guide having a guide corresponding to the reference hole and a sleeve having a rod inserted therein, A method of forming a reference hole is provided.

Further, the guide unit of the present invention provides a reference hole forming method using a reference surface for forming a free surface whose gap is adjusted by a positioning piece connecting a guide and a sleeve.

As described above, according to the present invention, it is possible to uniformly cut the rock by providing an accurate incision line, to prevent the drilling position of the reference hole from being deformed according to the working conditions, and to perform the reference hole forming operation in the horizontal or vertical direction So that the work of forming the free surface and the incision line is facilitated.

1 and 2 are a perspective view and a perspective view showing a rocker arm according to a conventional rock cutter method.
3 is a perspective view showing a reference line indicating reference line according to the present invention.
Fig. 4 is an enlarged view of a reference part showing a reference system according to the present invention.
5 and 6 are each an enlarged view showing a reference system according to another embodiment of the present invention.
7 is an external view showing a reference hole forming method according to the present invention.
8 is an external view showing an output state of a reference line according to a reference hole forming method of the present invention.
9 is a side view showing a piercing state by a baseline provided by the present invention.
FIG. 10 is a perspective view showing a drilled state provided by another embodiment of the present invention. FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 3 is a perspective view illustrating a reference line indicating reference system according to the present invention, FIG. 4 is an enlarged view showing a reference unit according to the present invention, and FIGS. 5 and 6 are views showing a reference system according to another embodiment of the present invention, This is an enlarged view of the main part of the figure.

The reference system 100 of the present invention is configured such that the rod 230 connected to the bit 231 is connected to the boom table 210 which is variable in the rock- A predetermined straight line is displayed on the side surface of the boom frame 210 so that the boom frame 210 can be held horizontally when the boom frame 210 is installed forward and backward.

At this time, at least one reference plane 100 is installed on the reference plane 430, which is a position separated from the rock-

The reference system 100 is provided with a horizontal holding means 120 on a reference surface 430 such that a plurality of reference holes 410 punctured on a free surface 400 by a bit 231 are parallel to each other in a horizontal or vertical direction, A variable block 110 which is lifted and lowered by a lifting and lowering means 140 around the main body 130 and a fixed length base line 450 connected to the variable block 110, And a reference line display means 150 installed to display the reference line.

At this time, the horizontal holding means 120 includes three or more support plates 121 that are screwed to the bottom surface of the main body 130 so as to adjust a relative height with respect to the reference surface 430, And two or more leveling devices 123 that are provided on the upper side.

In addition, the lifting and lowering means 140 includes at least three guide rods 141, a fixing plate 143 installed to support the guide rods at a position apart from the main body, A screw bar 147 rotated as the motor, and a nut 149 mounted on the variable block so as to slide on the guide bar and engage with the screw bar.

The reference line display means 150 includes a linear laser 151 for outputting a straight line having a predetermined length in a horizontal or vertical direction, such as a cut surface or a rock bolt boom.

At this time, the linear laser is installed in at least one of the vertical or horizontal directions of the variable block to display one or more reference lines in the horizontal or vertical direction and the intersecting direction of the boom frame or the rock.

In the present invention, the baseline display means 150 may be installed so as to simultaneously form a baseline by a linear laser in the vertical and horizontal directions of the boom bar provided in one rock drill.

The operation of the present invention constructed as described above will be described.

3 to 6, the reference system 100 according to the present invention includes a rocker or rocker arm 200 to form a free surface 400 having a predetermined size space in which a rocking force acts on a rock surface R, And provides a displayed reference line 450.

At this time, the reference line 450 provides a reference for forming each reference hole 410 provided for drilling the free surface 400, or a reference for determining the correct position of the boom mount 210 in the rock drill 200 A plurality of reference holes 410 are formed in parallel with each other at precise intervals.

That is, the rod 230 is connected to the bit 231 by outputting a color reference line 450 to one side of the boom frame 210, which is installed in the rocker 200 to be adjusted by the reference system 100, Even if the impact is transmitted to the rocker arm 200, the position of the rocker arm 200 can be changed without changing the position of the rocker arm 200 by adjusting the correct position through the reference line 450.

At this time, the reference system 100 is installed at a position separate from the rock drill 200, so that even if the position of the boom frame 210 is changed due to an impact transmitted through the bit 231, the reference system is always positioned at the correct position, It is possible to re-adjust the position of the light guide plate 210.

At the time of forming the free surface through the reference line 450, the reference system 100 forms a reference line parallel to the boom, or a reference line in the transverse or longitudinal direction of the arm.

In addition, the reference system 100 includes a plurality of linear lasers mounted simultaneously on the side or bottom of the boom stand 210 forming a rectangular cross section of the rock drill 200 to output a reference line 450, Accurate positioning is achieved in the horizontal or vertical direction.

The reference system 100 is supported horizontally on the reference surface 430 and is varied in the vertical direction to be parallel to the vertical or horizontal direction of the rock surface for forming the free surface 400, A reference hole can be formed.

That is, in the reference system 100 of the present invention, a reference line 450 having a predetermined length is output to a boom of a rock or rock drill through a linear laser, which is a reference line indicating means, while lifting and lowering the main body 130, To be displayed.

At this time, the horizontal holding means 120 includes three or more support plates 121 that are screwed to the bottom surface of the main body 130 so as to adjust the height thereof, and two or more levelers 123 ) So that accurate horizontal maintenance is possible.

In addition, the lifting and lowering means 140 includes at least three guide rods 141, a fixing plate 143 installed to support the guide rods at a position apart from the main body, And a nut 149 provided on the variable block so as to be engaged with the screw bar while sliding on the guide rod. When the motor is driven, the variable block is rotated, And to change the position of the reference line while descending.

7 is an external view illustrating a reference hole forming method according to the present invention. FIG. 8 is an external view showing an output state of a reference line according to a reference hole forming method of the present invention. FIG. 10 is a perspective view showing a drilled state provided by another embodiment of the present invention. FIG.

The present invention relates to a rocking machine (200) having a rocking bar (200) for boring rock masses corresponding to a predetermined incision line (not shown) (450).

At this time, the reference line 450 is outputted and displayed by the reference system 100, and a straight line having a constant color and a constant width is outputted and displayed on one side of the boom stand 210 of the rock-

The rod 230 of the rock drill 200 horizontally advances along the reference line 450 to form one or more reference holes 410 which are parallel to each other in the vertical or horizontal direction of the rock.

In addition, by forming the reference hole 410 continuously along the reference line 450 formed by the reference system 100 as described above, it is possible to form the space in which the hammer force acts, that is, the free surface 400.

That is, according to the present invention, at least one reference line 450 having a predetermined length is displayed on a rod so as to be parallel to the rod 230 of the rocking arm 200 that punctures the rock R, so that the rod of the rocking rocker is parallel to the reference line And advances to form a reference hole 410 on the other hand.

The rod of the rock drill 200 moved in parallel with the reference hole 410 is moved in parallel with the reference hole 410 to be drilled beforehand, And another reference line having a predetermined length parallel to the reference hole.

Subsequently, one or more reference holes are formed parallel to each other when the rod 230 of the rock-mounted device 200 advances to be parallel to the other reference line to form another reference hole in the vertical or horizontal direction of the rock.

At this time, the reference line displaying step and the reference hole forming step are repeated to form a plurality of reference holes parallel to each other in the horizontal or vertical direction.

The free surface 400 may be formed by forming a plurality of reference holes 410 through the auxiliary guide unit 600A at positions spaced apart from each other by a predetermined distance and then mounting the guide unit 600 on the reference hole 410. [ The other side of the guide unit is inserted into the rod 230 of the rocker arm 200. As shown in FIG.

That is, when the free surface 400 is formed, the reference hole 410 is formed in advance along the incision line through the auxiliary guide unit 600A, which is separate from the guide unit 600, at predetermined intervals.

At this time, the auxiliary guide unit 600A has a structure in which the sleeve supporting the rod and the guide supported by the reference hole are integrally connected to each other, and one side of the guide is inserted into one reference hole, The sleeves are guided to advance the rods so that the reference holes are formed parallel to each other at positions spaced apart by a predetermined distance.

The rod 230 supported by the reference hole 410 is advanced through the guide unit 600 to be parallel to the reference hole 410 while being spaced apart from the reference hole 410 by a predetermined distance, Holes 420 are formed.

The guide unit 600 includes a guide 610 corresponding to the reference hole 410 and a sleeve 630 through which the rod is inserted and supported so as to be integrally connected to the reference hole, (420) are formed to connect the reference holes (410), which have been previously drilled, to each other.

In addition, the reference line 450 causes the linear laser to display a reference line having a predetermined length at least in at least one of the rock drill or the rock.

In addition, the guide unit 600 is configured to adjust the distance between the reference hole and the second reference hole by a positioning piece (not shown) connecting the guide and the sleeve, and the stone dust is discharged through the air hole 615 The guide unit 600 can be smoothly moved in the reference hole 410.

The reference system 100 for forming the reference line may be configured such that a reference line 450 composed of at least one laser guide line having a constant width when the free surface 400 is formed through the reference line 450, To be formed in the vertical direction.

At this time, the reference system 100 is mounted on the reference plane 430, which is positioned at a different position from the rock drill, while being installed in a state of being raised and lowered in the height direction.

In addition, the free surface 400 formed by connecting the reference hole and the second reference hole with each other is formed in various shapes such as a # letter, and a pressure generating hole 700 is formed inside the pressure generating hole 700, Or by a free surface 400 when the crusher 750 expanding by pneumatic pressure or the like is inserted.

The operation of the present invention constructed as described above will be described.

7 to 10, the present invention is characterized in that a plurality of perforation holes are formed through the rock drill 200 to form a predetermined reference line 450 for forming the free surface 400 on the rock R So as to form a free surface 400 having a predetermined depth and width.

A pressure generating hole 700 is formed on the inner side of the free surface 400 at predetermined intervals and a crusher 750 generating pressure by hydraulic pressure or pneumatic pressure is inserted to generate a pressure toward the free surface, Shredding.

At this time, the free surface 400 is formed by forming a plurality of reference holes 410 formed through the reference line 450 and then drilling a second reference hole 420 between the reference holes to penetrate the reference holes 410.

In addition, the reference holes 410 are formed by passing through the auxiliary guide unit 600A at a predetermined interval, and the reference holes 410 are passed through the guide unit 600 through the guide holes.

Subsequently, the reference hole 410 is formed with one or more horizontal reference lines 450 having a predetermined length in the vertical or horizontal direction of the rock to maintain the horizontal alignment with the boom stand 210 of the rock drill 200, ) To adjust the position.

At this time, the reference hole 410 can be precisely formed at a desired position through the reference line 450.

Subsequently, while one side of the guide unit 600 is inserted into the reference hole 410 punctured by the reference line 450, the other side of the guide unit is inserted into the rod 230 of the rocker 200 to operate the rocker arm, A second reference hole 420 parallel to the reference hole 410 is formed.

The guide unit 600 includes a guide 610 corresponding to the reference hole 410 and a sleeve 630 through which the rod is inserted and supported so as to be integrally connected to the reference hole, (420).

In addition, the reference line 450 allows the reference point to be formed by the linear laser to indicate a reference line having a predetermined length at least one of the rocker arm or the arm, while the bit is operated.

At the time of forming the free surface 400 through the reference line 450, the reference system 100 forms a reference line in the horizontal and vertical directions, respectively, with respect to the reference line arm of the boom frame.

The reference system 100 is supported horizontally in the reference plane 430 and is varied in the vertical direction so that a plurality of reference holes can be formed parallel to the vertical direction of the free surface 400 will be.

100 ... Reference system 200 ... Rock drill
400 ... free surface 410 ... reference hole
430 ... Reference plane 450 ... Reference line
600 ... guide unit 610 ... guide
630 ... sleeve

Claims (6)

A main body supported on the reference surface through a horizontal holding means;
A variable block which is lifted and lowered by the lifting and lowering means around the main body, and
And a reference line display means connected to the variable block so as to display a reference line on a straight line having a predetermined width in a space, wherein the reference line is outputted in a vertical or horizontal direction at a predetermined height of the reference plane, Holes are provided so as to be parallel to each other in the vertical and horizontal directions,
The elevating and lowering means includes at least three guide rods, a fixing plate for supporting the guide rods at a position apart from the main body, a screw bar rotatably supported on the fixing plate and rotated as a motor provided in the main body, And a nut provided on the variable block so as to be engaged with the screw bar,
Wherein the reference line display means comprises at least one linear laser that displays a straight line of a predetermined length in a vertical or horizontal direction as a color and is provided in at least one of a vertical direction or a horizontal direction of the variable block.
[2] The apparatus according to claim 1, wherein the horizontal holding means comprises three or more support plates screwed to the bottom surface of the main body so as to adjust the height thereof, and two or more leveling members cross- Standard for surface formation. Marking at least one reference line having a predetermined length on a rod so as to be parallel with the rod of the rocking arm so as to form a reference hole of the rocking rock, and advancing the rod of the rocking rocker parallel to the reference line to form a reference hole in the rock;
A rod of the rock drill moved in parallel with the reference hole which is moved in the horizontal or vertical direction of the rock by moving the rod of the rock drill moved parallel to the reference hole and being parallel to the reference hole drilled beforehand in the rod of the rock drill, And forming at least one reference hole parallel to each other when the rod of the rocket arm is advanced to be parallel to the other reference line to form another reference hole in the vertical or horizontal direction of the rock,
The reference line displaying step and the reference hole forming step are repeated to form a plurality of reference holes parallel to each other in the horizontal or vertical direction,
The other side of the guide unit is inserted into each reference hole formed by the reference line, and the other side of the guide unit is inserted into the rod of the rocker arm. Then, the rocker arm moves forward along the reference line to form one or more second reference holes,
Wherein the reference line is a reference line for forming a free surface for forming a reference line having a predetermined length at least one of the rocking arms and the arm having an incision line by a linear laser positioned on a reference plane.
[Claim 4] The method according to claim 3, wherein the guide unit includes a guide corresponding to the reference hole and a sleeve having a rod inserted therein and integrally connected to form a plurality of reference holes at regular intervals or continuously. A method of forming a reference hole using a reference system. 4. The apparatus according to claim 3, wherein the guide unit adjusts the distance between the reference holes by a positioning piece connecting the guide and the sleeve, and discharges stones through the air holes. A method of forming a reference hole. [6] The apparatus of claim 3, wherein the reference hole is formed by previously forming a reference hole in a state of being spaced apart by a predetermined distance by the auxiliary guide unit, and then connecting the reference hole through a reference hole formed through the guide unit A method of forming a reference hole using a reference plane for forming a free surface.
KR1020150059605A 2015-04-28 2015-04-28 Indicator and reference hall generation method using the same KR101545686B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150059605A KR101545686B1 (en) 2015-04-28 2015-04-28 Indicator and reference hall generation method using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150059605A KR101545686B1 (en) 2015-04-28 2015-04-28 Indicator and reference hall generation method using the same

Publications (1)

Publication Number Publication Date
KR101545686B1 true KR101545686B1 (en) 2015-08-24

Family

ID=54061440

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150059605A KR101545686B1 (en) 2015-04-28 2015-04-28 Indicator and reference hall generation method using the same

Country Status (1)

Country Link
KR (1) KR101545686B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101617786B1 (en) * 2015-12-30 2016-05-03 (주)코러싱 The boring machine for using deck road
KR101750109B1 (en) * 2016-06-21 2017-06-22 주식회사 기술나라 device for forming reference hole with multi-axis drill
KR102489877B1 (en) * 2022-05-19 2023-01-18 (주)금풍전력 Boring apparatus for airfield lighting system
KR102489878B1 (en) * 2022-05-19 2023-01-18 (주)금풍전력 Centering apparatus for airfield lighting system and boring method using centering apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100765938B1 (en) 2006-11-23 2007-10-17 정태은 A base rock cutting method by continue and adjacent drilling

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100765938B1 (en) 2006-11-23 2007-10-17 정태은 A base rock cutting method by continue and adjacent drilling

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101617786B1 (en) * 2015-12-30 2016-05-03 (주)코러싱 The boring machine for using deck road
KR101750109B1 (en) * 2016-06-21 2017-06-22 주식회사 기술나라 device for forming reference hole with multi-axis drill
KR102489877B1 (en) * 2022-05-19 2023-01-18 (주)금풍전력 Boring apparatus for airfield lighting system
KR102489878B1 (en) * 2022-05-19 2023-01-18 (주)금풍전력 Centering apparatus for airfield lighting system and boring method using centering apparatus

Similar Documents

Publication Publication Date Title
KR101545686B1 (en) Indicator and reference hall generation method using the same
CN101876248B (en) Method and apparatus for maintaining longwall face alignment
KR101613313B1 (en) Dual core drill
EP2489823A1 (en) Device for splitting solid materials
US10087755B2 (en) Method and apparatus for splitting or cleaving rock
KR102195463B1 (en) Apparatus for nonvibration rock splitting and method for excavating the same
CN106121537B (en) Without coal column gob side entry retaining Qie Dingcheng lanes construction method
ES2381960T3 (en) System to mount a hammer
CN108262864B (en) Underwater drilling positioning device and positioning method
KR100914581B1 (en) Boring device
KR100916339B1 (en) Rock drilling device for Performing the free Surface in rock Splitting
KR102095678B1 (en) Probe drill assembly for Tunnel Boring Machine
JP2018150707A (en) Continuous drilling device and continuous drilling method
KR20170142353A (en) Stone quarrying equipment and method for quarrying stone using the same
KR101906455B1 (en) Boring Machine
KR101750109B1 (en) device for forming reference hole with multi-axis drill
KR20100007861A (en) Method of quarrying dimensional stone, and line drilling apparatus
US4071095A (en) Methods of and apparatus for winning reef
JP2014051859A (en) Device and method for drilling
KR101892094B1 (en) method for noise-free rock splitter using driving equipment with simultaneous jobs
KR101603758B1 (en) Double hammer device for drilling machine
CN110067505B (en) All-hydraulic anchor all-in-one that cuts suitable for gob entry retaining cuts
KR101882192B1 (en) Multi punching device for grouting method to road subsided by weak ground
KR102376612B1 (en) drill guide unit for formation of free Surface and method for performing the free Surface in rock Splitting
CN105772780A (en) AS wrench hole drilling device

Legal Events

Date Code Title Description
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee