CN105863507A - Double-sleeve drilling equipment - Google Patents
Double-sleeve drilling equipment Download PDFInfo
- Publication number
- CN105863507A CN105863507A CN201610399144.8A CN201610399144A CN105863507A CN 105863507 A CN105863507 A CN 105863507A CN 201610399144 A CN201610399144 A CN 201610399144A CN 105863507 A CN105863507 A CN 105863507A
- Authority
- CN
- China
- Prior art keywords
- sleeve pipe
- drilling
- creep
- double
- drilling rod
- 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 72
- 239000002689 soil Substances 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000002893 slag Substances 0.000 claims description 10
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 7
- 239000011799 hole material Substances 0.000 abstract 4
- 238000000034 method Methods 0.000 description 5
- 238000004162 soil erosion Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
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
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
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 the technical field of drilling equipment and discloses double-sleeve drilling equipment. The double-sleeve drilling equipment comprises a drilling sleeve, a drilling rod and a power head. The drilling rod is arranged in the drilling sleeve, and a drilling gap allowing high-pressure water carrying soil residue to return is formed between the drill rod and the drilling sleeve. The lower end of the drilling rod is provided with a cutting drill bit for cutting a soil layer. The lower end of the drilling sleeve is provided with a guiding drill bit in an open type. A drilling space for containing a soil plug is formed between the cutting drill bit and the guiding drill bit. The double-sleeve drilling equipment is utilized for drilling, high-pressure water injected into a hole is returned upwards along with soil residue through the drilling gap between the drilling rod and the drilling sleeve and is prevented from being returned from the space between the drilling sleeve and the hole wall, the high-pressure water will not scour the hole wall of a formed hole, water and soil loss is reduced, the settling volume of the ground, pipelines, buildings and the like on the periphery of a foundation pit is reduced, the double-sleeve drilling equipment has a practical effect on protecting the safety of the ground, pipelines, buildings and the like on the periphery of the foundation pit, and potential safety hazards existing on the foundation pit are avoided.
Description
Technical field
The present invention relates to the technical field of rig, particularly relate to double-jacket tube rig.
Background technology
In recent years, along with developing rapidly of urban construction, the utilization of the underground space becomes increasingly prevalent.?
In the selection of deep foundation pit support form, prestress anchorage cable is because its construction is simple, quick, reliable, economic dispatch is special
Point, is widely used.
With reference to shown in Fig. 1, pattern foundation pit supporting structure is in the construction prestressed cable of below level of ground water, generally
Use single sleeve pipe with managing and protecting cornice water Drilling Method, i.e. hole with the sleeve pipe 101 consistent with design aperture,
While boring, to hole, rising pouring enters water under high pressure, utilizes water under high pressure to take the boring mud produced in drilling process out of.
In prior art, owing to rig is in drilling process, returns water and carry silt particle through sleeve pipe 101 and hole
Gap between wall is returned out, will certainly constantly wash away the hole wall of forming hole, strengthens prestress anchorage cable at length range
In soil erosion amount, as run into banket, the scall such as mud, silt, gravelly sand time, at boring procedure
In, soil erosion amount can tend to serious, results even in the sedimentations such as foundation ditch surrounding ground, pipeline and building
Amount strengthens or exceeds standard, and becomes the major hidden danger of deep pit monitor.
Summary of the invention
It is an object of the invention to provide double-jacket tube rig, it is intended to solve in prior art, use single set
Pipe rig is holed, and the soil erosion amount of the hole wall of forming hole is excessive, there is Ground Settlement of Deep Foundation Pit amount
The problem exceeded standard.
The present invention is achieved in that double-jacket tube rig, including creeping into sleeve pipe, creeping into drilling rod and use
Creep into sleeve pipe and creep into the unit head that drilling rod creeps into simultaneously described in driving, described in creep into drilling rod and be placed in described brill
Enter in sleeve pipe, and described in creep into drilling rod with described creep into sleeve pipe has for carry soil slag water under high pressure return
Creep into gap；The described lower end creeping into drilling rod have cutting soil layer cutting bit, described in creep under sleeve pipe
End has the drill bit of leading in open type, described cutting bit and described leading and has accommodating soil plug between drill bit
Creep into spacing.
Further, described in creep into the lower end of sleeve pipe there is bottom opening, described in lead drill bit and include multiple shape
Become described creep into its lower end periphery vertically bore tooth.
Further, the Drilling bore bit of the lower end creeping into drilling rod described in is full tooth three blade tip angular bit head.
Further, the length range creeping into spacing described in is between 10cm-20cm.
Further, to include that deslagging head section, described deslagging head section are arranged in described for described double-jacket tube rig
Unit head and creep between sleeve pipe, described unit head is connected to the upper end of described deslagging head section, described deslagging head
The lower end of section respectively with the described upper end creeping into sleeve pipe and creep into the upper end of drilling rod and be connected；In described deslagging head section
There is the deslagging gap connected with described clearance, the sidewall of described deslagging head section is communicated with slag discharge room
Gap and the slag-drip opening of outside.
Further, described deslagging gap shape ringwise is arranged.
Further, the sidewall of described deslagging head section has multiple described slag-drip opening, multiple described slag-drip openings
Arrange around the periphery of described deslagging head section.
Further, described deslagging head section includes connecting sleeve pipe and jointed rod, and described jointed rod is placed in
In described connection sleeve pipe, and having described deslagging gap with described connection between sleeve pipe, described slag-drip opening is formed
In the sidewall of described connection sleeve pipe；The upper end of described jointed rod and connect the upper end of sleeve pipe respectively with institute
State unit head to connect, the lower end of described jointed rod be connected to described in creep into the upper end of drilling rod, described adapter sleeve
The upper end of drilling rod is crept into described in being connected in the lower end of pipe.
Further, the upper end of described jointed rod and the upper end of connection sleeve pipe are threadingly attached to institute respectively
State unit head.
Further, the lower end of described jointed rod be threadedly connected to described in creep into the upper end of drilling rod, described company
The upper end of sleeve pipe is crept into described in being threadedly connected in the lower end of female connector pipe.
Compared with prior art, the double-jacket tube rig utilizing the present invention to provide is holed, in hand-hole
Water under high pressure carry soil slag by creeping into drilling rod and the gap of creeping into creeping between sleeve pipe returns upward, it is to avoid high
Setting-out returns out between sleeve pipe and hole wall by creeping into, and from the hole wall without scour out type hole, can effectively reduce water
Soil number of dropouts, reduces the settling amount of foundation ditch surrounding ground, pipeline, building etc., to protection foundation ditch circumferentially
The safety of face, pipeline, building etc. has the effect of reality, has the biggest practical value and dissemination, keeps away
Exempt from foundation ditch and there is potential safety hazard.
Accompanying drawing explanation
Fig. 1 is the single cased bore-bole equipment of the prior art schematic front view when boring；
Fig. 2 is the double-jacket tube rig of the embodiment of the present invention offer schematic perspective view when boring；
Fig. 3 is the schematic front view connecting sleeve pipe of the cased home equipment that the embodiment of the present invention provides；
Fig. 4 is the schematic front view of the jointed rod of the cased home equipment that the embodiment of the present invention provides；
Fig. 5 is the schematic front view of the connector of the cased home equipment that the embodiment of the present invention provides.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and reality
Execute example, the present invention is further elaborated.Only should be appreciated that specific embodiment described herein
Only in order to explain the present invention, it is not intended to limit the present invention.
Below in conjunction with specific embodiment, the realization of the present invention is described in detail.
With reference to shown in Fig. 2～5, for the preferred embodiment of present invention offer.
The double-jacket tube rig that the present embodiment provides, for holing, with in foundation ditch in the hole wall of foundation ditch
Forming prestressing anchor support structure, certainly, this double-jacket tube rig can also be used in other boring ring
In border, the utilization being not limited in the present embodiment.
Double-jacket tube rig includes creeping into sleeve pipe 205, creeping into drilling rod 206 and unit head 201, wherein,
Creep into drilling rod 206 and be positioned at the inside creeping into sleeve pipe 205, and creep into drilling rod 206 and creep between sleeve pipe 205
Having and creep into gap, this creeps into gap shape ringwise, and the lower end creeping into drilling rod 206 has cutting bit 207,
It is to say, soil layer can be cut by this cutting bit 207；The lower end creeping into sleeve pipe 205 has in spacious
That opens shape leads drill bit 208, say, that this is led drill bit 208 and mainly undertakes front end guide and creep into effect,
Its with outer tube shared drilling process in retaining wall effect.Cutting bit 207 is positioned at the inside of sleeve pipe,
Further, have between cutting bit 207 and the lower end creeping into sleeve pipe 205 and creep into spacing, say, that cut
Cut drill bit 207 and be positioned at the top leading drill bit 208, and lead and have between drill bit 208 between above-mentioned creeping into
Away from.
In the present embodiment, unit head 201 creeps into drilling rod 206 for driving and creeps into sleeve pipe 205 and rotate,
So, when unit head 201 starts, it drives to creep into sleeve pipe 205 and creep into drilling rod 206 and rotates simultaneously,
The drill bit 208 of leading crept on sleeve pipe 205 creeps into, and guides and whole creeps into creeping into of sleeve pipe 205, but
Lead drill bit 208 will not soil layer be cut, be only to lead brill；Creep into drilling rod 206 also with whole
Creep into creeping into and creeping into of sleeve pipe 205, and, the cutting bit 207 soil layer to entering with creep in spacing
Cut, to realize the effect of boring.
Double-jacket tube rig, while boring, creeps in drilling rod 206 and constantly injects water under high pressure in hole,
Due to cutting bit 207 and lead between drill bit 208 exist creep into spacing, so, in this creeps into spacing
Can there is the soil body of non-Drilling, formation soil plug, this soil plug creates relatively to creeping into of cutting bit 207
The environment closed, under the obstruct of soil plug, then can be carry soil by creeping into the water under high pressure of injection in drilling rod 206
Slag is by creeping into drilling rod 206 and the gap of creeping into creeping between sleeve pipe 205 returns upward.
When boring, along with the hole depth crept into lengthens, then can not connection breaking multiple creep into drilling rod 206 and
Multiple creep into sleeve pipe 205, constantly lengthen creep into drilling rod 206 with creep into sleeve pipe 205 length, circulation is crept into
Until being drilled into the design anchor cable degree of depth.
The double-jacket tube rig utilizing above-mentioned offer is holed, and the water under high pressure in hand-hole carries soil slag
By creeping into drilling rod 206 and the gap of creeping into creeping between sleeve pipe 205 returns upward, it is to avoid water under high pressure is by creeping into
Return out between sleeve pipe 205 and hole wall, can effectively reduce soil erosion amount from the hole wall without scour out type hole,
Reduce the settling amount of foundation ditch surrounding ground, pipeline, building etc., to protection foundation ditch surrounding ground, pipeline,
The safety of building etc. has the effect of reality, has the biggest practical value and dissemination, it is to avoid foundation ditch exists
Potential safety hazard.
In the present embodiment, cutting bit 207 and lead between drill bit 208 exist the length model creeping into spacing
Between enclosing for 10cm-20cm, so, double-jacket tube rig, during boring, exists and creeps into spacing
In soil plug length range be between 10cm-20cm.
The lower end creeping into sleeve pipe 205 has bottom opening, and above-mentioned drill bit 208 of leading includes multiple being formed at
That creeps into sleeve pipe 205 lower end periphery vertically bores tooth, so, when double-jacket tube rig is during boring,
This vertically bore tooth simply lead into effect, soil layer will not be cut；Creep into the brill of the lower end of drilling rod 206
Entering drill bit is full tooth three blade tip angular bit head.
In the present embodiment, double-jacket tube rig includes deslagging head section, and this deslagging head section is arranged in unit head 201
And creep between sleeve pipe 205, say, that unit head 201 is connected to the upper end of deslagging head section, deslagging head
The lower end of section respectively with the upper end creeping into sleeve pipe 205 and creep into the upper end of drilling rod 206 and be connected, so, power
201 by driving deslagging head section, and then, deslagging head section simultaneously drives creeps into sleeve pipe 205 and creeps into drilling rod
206 so that creep into sleeve pipe 205 and creep into drilling rod 206 and creep in soil layer.
Having deslagging gap in deslagging head section, this deslagging gap connects with creeping into gap；In deslagging head section
Sidewall has slag-drip opening 204, this slag-drip opening 204 and deslagging gap and ft connection, so, double sets
Pipe rig is during boring, and the water under high pressure that carry soil slag is back to slag discharge room by creeping into gap
In gap, and get rid of outside via slag-drip opening 204.
Specifically, deslagging gap shape ringwise is arranged so that deslagging gap and the connected region crept between gap
Territory is bigger, easily facilitates the return of the water under high pressure carrying soil slag.
Being provided with multiple slag-drip opening 204 in the sidewall of deslagging head section, the plurality of slag-drip opening 204 is around deslagging head
The periphery of section is arranged, so, is conducive to entering the discharge of the water under high pressure carrying soil slag in deslagging gap.
In the present embodiment, deslagging head section includes connecting sleeve pipe 202 and jointed rod 203, wherein, connects
Drilling rod 203 is placed in connection sleeve pipe 202, and jointed rod 203 is formed with being connected between sleeve pipe 202
The deslagging gap stated, above-mentioned slag-drip opening 204 is then formed in the sidewall connecting sleeve pipe 202.
Connect the upper end of the upper end of sleeve pipe 202 and jointed rod 203 respectively with the connection of unit head 201,
Connect sleeve pipe 202 lower end be connected with the upper end creeping into sleeve pipe 205, the lower end of jointed rod 203 with creep into
The upper end of drilling rod 206 connects, so, when unit head 201 drive connection drilling rod 203 and connection sleeve pipe 202
During rotation, jointed rod 203 then drives and creeps into drilling rod 206 and rotate, and connects sleeve pipe 202 and then drives and creep into set
Pipe 205 rotates.
In the present embodiment, the upper end of jointed rod 203 and connect the upper end of sleeve pipe 202 respectively with unit head 201
Between be threaded connection, the lower end of jointed rod 203 and connect the most corresponding screw thread in lower end of sleeve pipe 202
Connect and creep into the upper end of drilling rod 206 and creep into the upper end of sleeve pipe 205.
Specifically, unit head 201 is provided with connector 215, is provided with the first connecting hole in this connector 215,
The periphery of connector 215 is provided with the first external screw thread 216, accordingly, connects the madial wall of sleeve pipe 202 upper end
Being provided with the first internal thread 212, this first internal thread 212 engages with the first external screw thread 216 of connector 215,
So that the upper end connecting sleeve pipe 202 is socketed in the periphery of connector 215；First connecting hole is provided with
Two internal threads 217, the periphery of the upper end of jointed rod 203 is provided with the second external screw thread 214, this second external screw thread
214 the second internal threads 217 being engaged in the first connecting hole of connector 215 so that jointed rod 203
Upper end be placed in the first connecting hole of connector 215.
The periphery of the lower end connecting sleeve pipe 202 is provided with the 3rd external screw thread 211, accordingly, creeps into sleeve pipe 205
Upper end madial wall in be provided with the 3rd internal thread, so, connect the lower end of sleeve pipe 202 and be placed in and creep into sleeve pipe
In the upper end of 205, and the 3rd external screw thread 211 engages with the 3rd internal thread；In the lower end of jointed rod 203
It is provided with the second connecting hole, this second connecting hole is provided with the 4th internal thread 213, accordingly, creeps into drilling rod 206
The periphery of upper end be provided with the 4th external screw thread, so, the upper end creeping into drilling rod 206 is placed in jointed rod 203
The second connecting hole in, and the 4th external screw thread and the 4th internal thread 213 engage.
Above-mentioned connection sleeve pipe 202 and creep between sleeve pipe 205 by screw-threaded engagement so that connect sleeve pipe 202
And creep into stable connection and closing between sleeve pipe 205, it is ensured that the integrality of whole double-jacket tube rig.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Any amendment, equivalent and the improvement etc. made within bright spirit and principle, should be included in the present invention
Protection domain within.
Claims (10)
1. double-jacket tube rig, it is characterised in that include creeping into sleeve pipe, creeping into drilling rod and for driving
Described creep into sleeve pipe and creep into the unit head that drilling rod creeps into simultaneously, described in creep into drilling rod be placed in described in creep into sleeve pipe
In, and described in creep into drilling rod and described creep into sleeve pipe has for carry soil slag water under high pressure return creep between
Gap；The described lower end creeping into drilling rod has the cutting bit of cutting soil layer, described in creep into the lower end of sleeve pipe and have
Lead drill bit, described cutting bit and described leading in open type have creeping into of accommodating soil plug between drill bit
Spacing.
2. double-jacket tube rig as claimed in claim 1, it is characterised in that described in creep under sleeve pipe
End has bottom opening, described in lead drill bit and include creeping into described in multiple being formed at the vertical of its lower end periphery
Bore tooth.
3. double-jacket tube rig as claimed in claim 1, it is characterised in that described in creep under drilling rod
The Drilling bore bit of end is full tooth three blade tip angular bit head.
4. double-jacket tube rig as claimed in claim 1, it is characterised in that described in creep into the length of spacing
Degree scope is between 10cm-20cm.
5. the double-jacket tube rig as described in any one of Claims 1-4, it is characterised in that described double
Cased bore-bole equipment includes that deslagging head section, described deslagging head section are arranged in described unit head and creep between sleeve pipe,
Described unit head is connected to the upper end of described deslagging head section, and the lower end of described deslagging head section is crept into described respectively
The upper end of sleeve pipe and creep into the upper end of drilling rod and connect；Described deslagging head section has and connects with described clearance
Deslagging gap, the sidewall of described deslagging head section is communicated with the slag-drip opening of deslagging gap and outside.
6. double-jacket tube rig as claimed in claim 5, it is characterised in that described deslagging gap is ring
Arrangements.
7. double-jacket tube rig as claimed in claim 5, it is characterised in that the side of described deslagging head section
Having multiple described slag-drip opening in wall, multiple described slag-drip openings are arranged around the periphery of described deslagging head section.
8. double-jacket tube rig as claimed in claim 5, it is characterised in that described deslagging head section includes
Connecting sleeve pipe and jointed rod, described jointed rod is placed in described connection sleeve pipe, and with described adapter sleeve
Having described deslagging gap between pipe, described slag-drip opening is formed in the sidewall of described connection sleeve pipe；Described company
The upper end of stacks and the upper end of connection sleeve pipe are connected with described unit head, under described jointed rod respectively
End creeps into the upper end of drilling rod described in being connected to, the lower end of described connection sleeve pipe be connected to described in creep into the upper of drilling rod
End.
9. double-jacket tube rig as claimed in claim 8, it is characterised in that described jointed rod upper
The upper end of end and connection sleeve pipe is threadingly attached to described unit head respectively.
10. double-jacket tube rig as claimed in claim 8, it is characterised in that described jointed rod
The upper end of drilling rod is crept into described in being threadedly connected in lower end, and the lower end of described connection sleeve pipe is threadedly connected to described brill
Enter the upper end of sleeve pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610399144.8A CN105863507B (en) | 2016-06-06 | 2016-06-06 | Double-jacket tube drilling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610399144.8A CN105863507B (en) | 2016-06-06 | 2016-06-06 | Double-jacket tube drilling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105863507A true CN105863507A (en) | 2016-08-17 |
| CN105863507B CN105863507B (en) | 2018-05-18 |
Family
ID=56677293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610399144.8A Active CN105863507B (en) | 2016-06-06 | 2016-06-06 | Double-jacket tube drilling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105863507B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026097A (en) * | 2018-07-17 | 2018-12-18 | 深圳市工勘岩土集团有限公司 | A kind of double drill bit drilling construction methods of anti-float anchor rod |
| CN111058762A (en) * | 2019-12-26 | 2020-04-24 | 华北有色工程勘察院有限公司 | Device for conveniently drilling in broken rock mass and drilling method thereof |
| CN114541388A (en) * | 2022-03-30 | 2022-05-27 | 中国建筑第四工程局有限公司 | Method for constructing large-diameter deep hole anchor cable in complex geology of round gravel layer |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111945757B (en) * | 2020-08-14 | 2022-03-11 | 中国电建集团贵阳勘测设计研究院有限公司 | Upward-inclined self-advancing type slope drainage steel pipe structure and construction method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000034616A1 (en) * | 1998-12-09 | 2000-06-15 | Devico As | Apparatus for directional drilling |
| CN201554401U (en) * | 2009-12-18 | 2010-08-18 | 河南理工大学 | Hydraulic slag discharge device for drilling of deep anchor rod hole of tunnel base plate |
| CN201851009U (en) * | 2010-11-18 | 2011-06-01 | 长沙天和钻具机械有限公司 | Simultaneous casing drilling tool connecting device |
| CN103114807A (en) * | 2013-01-22 | 2013-05-22 | 中交天津港湾工程研究院有限公司 | Eccentric drilling hole-forming method of down-the-hole drill |
| CN205089229U (en) * | 2015-10-29 | 2016-03-16 | 广东宏大广航工程有限公司 | A double cannula device for underwater blasting drilling |
| CN205805414U (en) * | 2016-06-06 | 2016-12-14 | 深圳市工勘岩土集团有限公司 | Double-jacket tube rig |
-
2016
- 2016-06-06 CN CN201610399144.8A patent/CN105863507B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000034616A1 (en) * | 1998-12-09 | 2000-06-15 | Devico As | Apparatus for directional drilling |
| US6516900B1 (en) * | 1998-12-09 | 2003-02-11 | Devico As | Apparatus for directional drilling |
| CN201554401U (en) * | 2009-12-18 | 2010-08-18 | 河南理工大学 | Hydraulic slag discharge device for drilling of deep anchor rod hole of tunnel base plate |
| CN201851009U (en) * | 2010-11-18 | 2011-06-01 | 长沙天和钻具机械有限公司 | Simultaneous casing drilling tool connecting device |
| CN103114807A (en) * | 2013-01-22 | 2013-05-22 | 中交天津港湾工程研究院有限公司 | Eccentric drilling hole-forming method of down-the-hole drill |
| CN205089229U (en) * | 2015-10-29 | 2016-03-16 | 广东宏大广航工程有限公司 | A double cannula device for underwater blasting drilling |
| CN205805414U (en) * | 2016-06-06 | 2016-12-14 | 深圳市工勘岩土集团有限公司 | Double-jacket tube rig |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026097A (en) * | 2018-07-17 | 2018-12-18 | 深圳市工勘岩土集团有限公司 | A kind of double drill bit drilling construction methods of anti-float anchor rod |
| CN109026097B (en) * | 2018-07-17 | 2020-09-01 | 深圳市地质环境研究院有限公司 | Anti-floating anchor rod double-drill-bit hole forming construction method |
| CN111058762A (en) * | 2019-12-26 | 2020-04-24 | 华北有色工程勘察院有限公司 | Device for conveniently drilling in broken rock mass and drilling method thereof |
| CN114541388A (en) * | 2022-03-30 | 2022-05-27 | 中国建筑第四工程局有限公司 | Method for constructing large-diameter deep hole anchor cable in complex geology of round gravel layer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105863507B (en) | 2018-05-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105863507A (en) | Double-sleeve drilling equipment | |
| CN105298463B (en) | Gas hydrates big well multiple-limb radially horizontal well completion method | |
| KR100880675B1 (en) | Closed type underground heat exchanger device and construction method using double insertion geothermal tube | |
| CN102995026B (en) | Construction method for cathode protection device for underground pipeline system | |
| CN104863605B (en) | The constructing device and method of a kind of tunnel connection channel open-work | |
| CN104196442A (en) | Method for carrying out construction in vertical shaft or inclined shaft through raise boring machine | |
| CN104631438B (en) | Long auger guncreting uplift pile construction method | |
| CN108331573A (en) | The abandoned well administering method of bank | |
| CN108166483A (en) | Bored pile construction method | |
| CN107246242A (en) | Dual-purpose drill bit and its application method for holing with slurry wall protection filling pile construction | |
| CN112663600A (en) | Construction method of cast-in-situ bored pile for water-rich sandy stratum | |
| CN103835723A (en) | Comprehensive pretreatment method for shaft penetration in mined-out area stratum | |
| CN104832120A (en) | Device and method for fishing drill bit in bored pile | |
| CN205805414U (en) | Double-jacket tube rig | |
| CN205805454U (en) | The deslagging head of double-jacket tube rig | |
| CN104929558B (en) | Fixed point takes set process | |
| CN104264679B (en) | A kind of electric power pylon basis heavy caliber Underwater pile construction method | |
| CN105569602A (en) | Method for sealing channeling outside oil well pipe | |
| CN204609814U (en) | A kind of deep thick alluvium bored shaft broken grouting orifice tube is anti-goes out device | |
| CN205875147U (en) | A protect a section of thick bamboo for holing operation | |
| CN216787088U (en) | Horizontal drainage system for strip mine slope | |
| CN110185396A (en) | Suitable for the new drill drilled on the intensive town road of pipeline | |
| CN209817961U (en) | Oil pipe rotation preventing device for screw drill plug construction | |
| CN204591197U (en) | Drill extractor of bored pile | |
| CN108005659A (en) | A kind of diving for city vertical shaft construction excavates construction method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |