CN101688432A - Method and apparatus for drilling hole into bedrock - Google Patents
Method and apparatus for drilling hole into bedrock Download PDFInfo
- Publication number
- CN101688432A CN101688432A CN200880023663A CN200880023663A CN101688432A CN 101688432 A CN101688432 A CN 101688432A CN 200880023663 A CN200880023663 A CN 200880023663A CN 200880023663 A CN200880023663 A CN 200880023663A CN 101688432 A CN101688432 A CN 101688432A
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- China
- Prior art keywords
- feed beam
- rock
- drilling
- drilling rod
- front supporting
- 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.)
- Granted
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000011435 rock Substances 0.000 claims abstract description 46
- 238000006073 displacement reaction Methods 0.000 claims description 16
- 238000005452 bending Methods 0.000 claims description 5
- 239000000523 sample Substances 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
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
- 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
- E21B7/022—Control of the drilling operation; Hydraulic or pneumatic means for activation or operation
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- 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
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
- E21B15/006—Means for anchoring the drilling machine to the ground
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- 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
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
- E21B15/04—Supports for the drilling machine, e.g. derricks or masts specially adapted for directional drilling, e.g. slant hole rigs
-
- 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
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (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)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a method for drilling a hole in a rock with a rock drilling apparatus and to a rock drilling apparatus including a feed beam (1), a rock drill (2) moving along the feed beam (1 ) in the longitudinal direction thereof, a drill rod (3) connected to be rotated by the rock drill (2), a drill bit at the end of the drill rod (3) and a front support (6) locating at the rock-sideend of the feed beam (1) and intended for being pushed against the rock during drilling. In the method, at the beginning of the drilling as the drill bit (4) moves in the transverse direction of the feed beam (1) such that the drill rod bends, the feed beam (1) is shifted in relation to the front support (6) in the transverse direction of the feed beam (1). The apparatus includes a transverse shifting device (7) between the front support (6) and the feed beam (1 ), by which the front support (6) and the feed beam (1) may be shifted in relation to one another.
Description
Technical field
The present invention relates to a kind of method of utilizing rock drill to hole of being used at rock, the rock that this rock drill comprises feed beam, move along the longitudinal direction of described feed beam along feed beam bores, be connected in order to the drilling rod that bored rotation by rock, at the drill bit at the place, end of drilling rod, with the rock one side end place that is positioned at feed beam and be used for during Drilling by front supporting member towards the rock pushing, in the method, come to support on the rock by front supporting member, will hole then at the feed beam that during the Drilling rock is bored towards rock pushing feed beam.
The invention further relates to a kind of equipment of holing of being used at rock, the rock that this equipment comprises feed beam, move along the longitudinal direction of described feed beam along feed beam bores, be connected in order to the drilling rod that bored rotation by rock, at the drill bit at the place, end of drilling rod be positioned at the rock one side end place of feed beam and be used for during Drilling by the front supporting member towards the rock pushing.
Background technology
When the new hole of beginning Drilling on rock surface, quite generally, drill bit is lateral to rock surface and moves.In practice, this hole then appears and will be from the some skew of expecting during rock drilling machine in the location.Reason is, and is that rock surface normally tilts in every way or uneven, and therefore on the one hand the feeding active force of Drilling machine and on the other hand the rotation of drill bit produce the active force of the drill bit that trends towards laterally being shifted.And this has following consequence, that is: when Drilling continued, drilling rod was not the Drilling direction that designs along originally, but forms certain angle with it.And, when the position of drill bit when the drill location of design originally laterally departs from, the hole will be in design attitude.Drill bit and drilling rod and whole rig, the application life that this causes unnecessary wearing and tearing and has shortened equipment are strained in the bending of drilling rod again.
From US patent 4,979,575 known a kind of schemes, wherein after preliminary Drilling, at drill boom and feed beam and released along the joint between the feed beam of its longitudinal direction alternatively freely to move, make drill boom and feed beam can present tension-free substantially position, drill bit is still in preliminary hole simultaneously.In this scheme, when their no tension force ground is static, measure angle between various members and their mutual alignment, and then, direction and position that calculating is made new advances, thus the hole will be in desired position.Yet this is a kind of more complicated and problem settling mode consuming time.
Summary of the invention
The object of the present invention is to provide with a kind of method and apparatus, its allow with the feed beam that need not lead again, easy and simple mode (although having small lateral displacement) allows Drilling proceed.
Method of the present invention is characterised in that, when drill bit moves and when making drill pipe buckling along the horizontal direction of feed beam when Drilling begins, feed beam is displaced to the moving direction of drill bit with respect to front supporting member along the horizontal direction of feed beam, and making drilling rod become once more is straight basically.Equipment of the present invention is characterised in that this equipment comprises the transverse shift device between front supporting member and feed beam, utilizes this transverse shift device, and front supporting member and feed beam can relative to each other displacements on a direction horizontal with respect to feed beam at least.
Basic thought of the present invention is, the Drilling support member at the front end place of the feed beam in rock drilling machine utilizes the transverse shift device and is connected to feed beam, utilize this transverse shift device, this Drilling support member can be transversely moved by the normal position from it in two mutual vertical substantially directions of the longitudinal axis of feed beam, thus, when preliminary Drilling from design attitude originally when lateral is displaced to a certain degree, feed beam can be according to along the deflection of bending direction and along above-mentioned direction displacement, thereby described feed beam is can essentially no tension force ground static with drilling rod, keeps the coaxial direction of feed beam and drilling rod and drill bit simultaneously basically.After this, Drilling support member and feed beam can be locked on the correct position, and Drilling can be proceeded along the direction of initial apertures.
The present invention has the following advantages, and only utilizes the simple displacement of feed beam with respect to the position of front supporting member that is:, just boring direction can keep as design originally.The present invention has further advantage, and promptly scheme is simple and easy to implement.
Description of drawings
Below in conjunction with accompanying drawing the present invention is described in further detail, wherein
Fig. 1 is the schematic illustration of feed beam,
Fig. 2 a and 2b are the schematic illustration that can be applied to realizing along the vertical and horizontal direction of feed beam respectively shift unit element of the present invention,
Fig. 3 is the phantom drawing of the embodiment of shift unit,
Fig. 4 a roughly illustrates the operation of the present invention about a direction of displacement to 4c, and
Fig. 5 roughly illustrates a kind of simple scheme that is used to measure necessary amount of displacement.
The specific embodiment
Fig. 1 roughly illustrates the feed beam that is provided with transverse shift device of the present invention.It illustrates feed beam 1, has the rock drilling machine device 2 that moves along its longitudinal direction on the feed beam top.This feed beam and rock bore and the feeding facility that is used to feeding rock drilling machine device is well-known usually in essence and is significantly to those skilled in the art, and therefore they do not need to be explained in further detail.In addition, it illustrates drilling rod 3, has drill bit 4 at the drill rod end place.At the place, end of brill beam 1, on drill bit 4 one sides, guiding piece 5 before also existing, guiding piece 5 supports drill rods before utilization is somebody's turn to do during Drilling.
Also there is front supporting member 6 in front end place boring beam 1, and front supporting member 6 is intended to by towards treating by the pushing of the rock of drilling and being called as stake very frequently.Front supporting member 6 utilizes in this article the transverse shift device 7 of description scheme and function afterwards and is connected to feed beam 1.Feed beam 1 is connected to drill boom usually, and that drill boom is partly illustrated and is installed in usually is unshowned, in essence on the well-known Drilling base station (drilling base).Interconnecting of the actuator that drill boom is relevant with the feed beam utilization is that those skilled in the art are known usually, and therefore they do not need to be explained in further detail.
Fig. 2 a roughly illustrate see along the longitudinal direction of feed beam, be used for along direction shift component 7a feed beam and front supporting member, that can be applied to realizing transverse shift device 7 of the present invention that is shifted mutually.Fig. 2 b then illustrates the shift component that the line B-B in Fig. 2 a dissects.
The body of shift component 7a comprises the triangle guide recess, and its slidingsurface is by reference numerals 12 marks.Correspondingly, support member 10 comprises the edge that is in corresponding to the angle of the groove in the body, and its slidingsurface is by reference numerals 13 marks.In this way, keep under the guiding of the groove of support member 10 in body in place, but can utilize the effect of displacement cylinder 11 and move in complex way along the direction of arrow shown in Fig. 2 a.
The structure of the second shift component 7b and shift component 7a's is basic identical.Shift component 7a and 7b are one after the other interconnected by the longitudinal direction along feed beam, make their direction of motion of support member vertical mutually basically and perpendicular to the longitudinal direction of feed beam.
Interconnect by the body with shift component 7a and 7b, shift component 7a and 7b can be interconnected, and make their direction of motion traversed by each other.In this case, can be connected to feed beam 1 and preceding guiding piece 6 respectively with respect to body and the support member that relative to each other moves.Correspondingly, if support member is interconnected, then can be connected to feed beam 1 and preceding guiding piece 6 respectively with respect to support member and the body that relative to each other moves.
Fig. 3 with perspective fashion shift component 7a is shown roughly and how 7b is connected with each other.As shown in the figure, the body of shift component 7a and 7b becomes the angle of 90 degree each other, and therefore the direction of motion of support member 10 is orthogonal.
Fig. 4 a roughly illustrates the operation of the present invention about a direction of displacement to 4c.This illustrates when only will how to use the present invention when crooked vertically at boring beginning, drill bit.The front supporting member 6 of feed beam 1 is supported on the rock 14 and begins boring.This is shown in Fig. 4 a.These figure also roughly illustrate measurement mechanism 15, can utilize measurement mechanism 15 to determine the bending of drilling rod.Measurement mechanism is shown in Fig. 5 in further detail.
Fig. 4 b illustrates a kind of situation, and wherein, after Drilling began, drill bit down was shifted from starting point, and drilling rod 3 is crooked thus.This is by dotted line 16 signal, if the direction that drilling rod should extend when dotted line 16 has been described not bend.
Fig. 4 c illustrates a kind of situation, wherein, feed beam down is shifted with respect to front supporting member 6, makes during Drilling carries out, it is straight that drilling rod 3 can be set to as much as possible, and can carry out Drilling under the situation of tensioning drilling rod, drill bit and other Drilling facility necessarily.In order to realize this effect, with respect to its body upward displacement, body down is shifted with respect to shifting part 7a and front supporting member 6 with the feed beam 1 that is connected to body the support member of shifting part 7b thus, makes drilling rod become straight once more.If also transversely direction bends, then the support member of shifting part 7a will laterally be shifted along suitable direction in the corresponding way, thereby bend is stretching.
Can utilize and not be with the simple device of any sensor to realize the present invention, but bore the operator based on vision and transverse shift is carried out in desired mode in the artificially.Yet, can use the present invention by using independently detector assembly, this detector assembly is surveyed drilling rod with respect to the feeding deflection of beam, thus automatically or utilize that to carry out transverse shift at the display that bores the operator front be more reliable.
Fig. 5 roughly illustrates this detector assembly, and this detector assembly is made that in normal conditions drilling rod is advanced and passed detector assembly by with on the guiding piece before can not move mode being installed in.Detector assembly 15 comprises body 17 and annular detector therebetween 18, annular detector 18 is connected to the body 17 of detector assembly 15 around drilling rod 3 and along its horizontal direction, make under the support of support spring 19 can along vertically and this both direction of level move.Detector assembly also comprises the whether sensor 20 along the direction of two axis from its normal position displacement of sensitive detector 18.In this case, deflection can be for example by fax on the display that bores the operator front, and therefore bore the operator can be as required along vertically and horizontal direction according to demonstration information displacement feed beam, illustrate that until detector assembly drilling rod is straight.Correspondingly, along horizontal direction displacement so that feed beam is in correct position carries out in the corresponding way.
In the above, in manual and accompanying drawing only by case description the present invention, and protection domain limits in the claims.Can utilize the shifting part assembling shift unit of interconnective and the separation between feed beam and front supporting member in the above described manner.Shift unit can also be implemented as the integral body of a compactness, makes same body comprise the transmission cylinder of support member and both direction.Body can also be made of a mainly integral part, and processes guide recess and other necessary element in these parts.In those skilled in the art's general knowledge, other implementation also is possible.In order to satisfy concrete needs, the guiding piece between support member and body can with proposed in the above different.Similarly, the position of displacement cylinder can be different with installing.The shape of support member also can change.
Essential is, between front supporting member and feed beam, feed beam comprises shift unit, utilize this shift unit, the position of feed beam and front supporting member can relative to each other be shifted along the direction of two axis, and described two axis are advantageously mutually vertical and transverse to the longitudinal direction of feed beam, make after initial Drilling, in order to carry out actual Drilling, it is straight basically that drilling rod will be set to.
Claims (8)
1. one kind is used for the method for utilizing rock drill to hole at rock, described rock drill comprises feed beam (1), longitudinal direction along described feed beam bores (2) along the rock that described feed beam (1) moves, be connected in order to be bored the drilling rod (3) of (2) rotation by described rock, the drill bit of locating in the end of described drilling rod (3), with the rock one side end place that is positioned at described feed beam (1) and be used for during Drilling by front supporting member (6) towards rock (16) pushing, in described method, come to support on the rock (16) by the described front supporting member (6) that pushes described feed beam (1) towards rock at the described feed beam (1) that during the Drilling described rock is bored (2), to hole then, it is characterized in that, when described drill bit (4) moves and when making that described drilling rod (3) is crooked along the horizontal direction of described feed beam (1) when Drilling begins, described feed beam (1) is displaced to the moving direction of described drill bit (4) with respect to described front supporting member (6) along the horizontal direction of described feed beam (1), and making described drilling rod (3) become once more is straight basically.
2. according to the method for claim 1, it is characterized in that, measure the crooked of described drilling rod (4) and come with respect to described front supporting member (6) the described feed beam (1) that is shifted based on measured bending.
3. one kind is used for the equipment of holing at rock, described equipment comprises feed beam (1), longitudinal direction along described feed beam bores (2) along the rock that described feed beam (1) moves, be connected in order to be bored the drilling rod (3) of (2) rotation by described rock, the drill bit of locating in the end of described drilling rod (3), with the rock one side end place that is positioned at described feed beam (1) and be used for during Drilling by front supporting member (6) towards rock (16) pushing, it is characterized in that, described equipment comprises transverse shift device (7) between described front supporting member (6) and described feed beam (1), utilize described transverse shift device, described front supporting member (6) and described feed beam (1) can relative to each other displacements on a direction horizontal with respect to described feed beam (1) at least.
4. according to the equipment of claim 3, it is characterized in that described transverse shift device (7) is arranged to transversely in the direction of two mutual traversed bies of described feed beam (1) be shifted described front supporting member (6) and described feed beam (1).
5. according to the equipment of claim 3 or 4, it is characterized in that, described transverse shift device (7) comprises body and two support members (10) that move along the direction of mutual traversed by with respect to described body, and is used for described two support members (10), acts between described body and the described support member (10), is used for moving with respect to described body the pressure medium cylinder of described support member (10).
6. according to each equipment in the claim 3 to 5, it is characterized in that, described transverse shift device (7) is by two shifting part (7a, 7b) constitute, described two shifting parts all comprise body (9a, 9b), with respect to described body (9a, 9b) mobile support member (10) and act on described body (9a, 9b) and between the described support member (10), be used for relative to each other moving described support member (10) and described body (9a, pressure medium cylinder 9b), and by described support member (10) being interconnected or by (9a 9b) interconnects with described body, described shifting part (7a, 7b) interconnected, make described body (9a, 9b), perhaps correspondingly, described support member (10) can move with respect to described interconnective parts along the direction of motion of traversed by each other.
7. according to each equipment in the claim 3 to 6, it is characterized in that, described equipment comprise the have sensor detector assembly (15) of (20), described sensor (20) be used for the described drilling rod of sensing (3) described feed beam (1) vertically and the bending on the horizontal direction.
8. according to the detector assembly of claim 7, it is characterized in that, described detector assembly comprises body (17), described body (17) has opening and the annular detector (18) in the described opening of described body (17), described drilling rod (3) passes described annular detector (18), and described annular detector (18) utilizes each other the spring of traversed by (19) and is connected to described body (17), make described annular detector to move, and described sensor (20) is mounted in order to measure the displacement of described probe (18) from its normal position generation with respect to described body (17).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20075523A FI20075523L (en) | 2007-07-06 | 2007-07-06 | Method and apparatus for drilling a hole in rock |
| FI20075523 | 2007-07-06 | ||
| PCT/FI2008/050410 WO2009007502A1 (en) | 2007-07-06 | 2008-07-04 | Method and apparatus for drilling hole into bedrock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101688432A true CN101688432A (en) | 2010-03-31 |
| CN101688432B CN101688432B (en) | 2013-03-06 |
Family
ID=38331611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008800236638A Expired - Fee Related CN101688432B (en) | 2007-07-06 | 2008-07-04 | Method and apparatus for drilling hole into bedrock |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2176492B1 (en) |
| KR (1) | KR20100042634A (en) |
| CN (1) | CN101688432B (en) |
| FI (1) | FI20075523L (en) |
| WO (1) | WO2009007502A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105625943A (en) * | 2016-01-11 | 2016-06-01 | 德阳坚兵工程技术有限公司 | Method for accurately controlling overbreak and underbreak by adopting peripheral hole formation through fine-adjustment drill rod of rock drilling jumbo |
| CN105649634A (en) * | 2016-01-11 | 2016-06-08 | 德阳坚兵工程技术有限公司 | Mechanical smooth blasting and driving method of high-speed railway tunnel engineering hydraulic drill jambo |
| CN109869097A (en) * | 2019-04-04 | 2019-06-11 | 中铁工程装备集团隧道设备制造有限公司 | A kind of forward beam assembly of tunnel perimeter blasthole drilling |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI20096109A (en) * | 2009-10-28 | 2011-04-29 | Sandvik Mining & Constr Oy | Method of combining guard structure with feed beam and mine control guard structure |
| CN110454159A (en) * | 2019-08-12 | 2019-11-15 | 湖南烈岩科技有限公司 | Flat push type brill splits all-in-one machine |
| CN113290715A (en) * | 2020-02-24 | 2021-08-24 | 江苏航天大为科技股份有限公司 | Punching tool convenient for tunnel equipment installation |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE343104B (en) * | 1970-02-19 | 1972-02-28 | Atlas Copco Ab | |
| NO149117C (en) * | 1981-04-29 | 1984-02-29 | Furuholmen As | PROCEDURE AND DEVICE FOR SETTING A MOUNTAIN DRIVER'S GUIDE AT A GIVEN DISTANCE FROM THE RESIDENCE |
| NO150451C (en) | 1981-04-29 | 1984-10-24 | Furuholmen As Ing Thor | PROCEDURE FOR CREATING A MOUNTAIN DRILL |
| JPS58138894A (en) * | 1982-02-12 | 1983-08-17 | マツダ株式会社 | Automatic boring control apparatus |
| CH662156A5 (en) * | 1983-09-15 | 1987-09-15 | Fernand Metrailler | Dismantlable drilling head frame with articulated column |
| US4890680A (en) * | 1986-10-07 | 1990-01-02 | Friedhelm Porsfeld | Machine for working rock, especially a block drilling machine |
| FI79884C (en) * | 1988-06-03 | 1990-03-12 | Tampella Oy Ab | Method and apparatus for drilling a hole in rock |
| JP3476613B2 (en) * | 1995-12-27 | 2003-12-10 | 古河機械金属株式会社 | Method of determining reference direction of drilling device |
| FI972498A (en) * | 1997-06-12 | 1998-12-13 | Tamrock Oy | Method and apparatus for supporting a rock drilling device drilling device on a rock |
| FI107182B (en) * | 1998-12-09 | 2001-06-15 | Tamrock Oy | Method and rock drilling device for correcting mounting errors |
| CN2816322Y (en) * | 2005-07-15 | 2006-09-13 | 刘明进 | Apparatus for boring construction |
-
2007
- 2007-07-06 FI FI20075523A patent/FI20075523L/en not_active Application Discontinuation
-
2008
- 2008-07-04 EP EP08775535.1A patent/EP2176492B1/en not_active Not-in-force
- 2008-07-04 WO PCT/FI2008/050410 patent/WO2009007502A1/en active Application Filing
- 2008-07-04 KR KR1020107002142A patent/KR20100042634A/en not_active Application Discontinuation
- 2008-07-04 CN CN2008800236638A patent/CN101688432B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105625943A (en) * | 2016-01-11 | 2016-06-01 | 德阳坚兵工程技术有限公司 | Method for accurately controlling overbreak and underbreak by adopting peripheral hole formation through fine-adjustment drill rod of rock drilling jumbo |
| CN105649634A (en) * | 2016-01-11 | 2016-06-08 | 德阳坚兵工程技术有限公司 | Mechanical smooth blasting and driving method of high-speed railway tunnel engineering hydraulic drill jambo |
| CN109869097A (en) * | 2019-04-04 | 2019-06-11 | 中铁工程装备集团隧道设备制造有限公司 | A kind of forward beam assembly of tunnel perimeter blasthole drilling |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20100042634A (en) | 2010-04-26 |
| FI20075523L (en) | 2009-01-07 |
| FI20075523A0 (en) | 2007-07-06 |
| WO2009007502A1 (en) | 2009-01-15 |
| CN101688432B (en) | 2013-03-06 |
| EP2176492A1 (en) | 2010-04-21 |
| EP2176492B1 (en) | 2017-03-15 |
| EP2176492A4 (en) | 2015-12-30 |
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