CN109488209A - A kind of steel sleeve, full-sleeve full-rotation drill and drilling machine drilling method - Google Patents
A kind of steel sleeve, full-sleeve full-rotation drill and drilling machine drilling method Download PDFInfo
- Publication number
- CN109488209A CN109488209A CN201811604988.7A CN201811604988A CN109488209A CN 109488209 A CN109488209 A CN 109488209A CN 201811604988 A CN201811604988 A CN 201811604988A CN 109488209 A CN109488209 A CN 109488209A
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- Prior art keywords
- tooth
- steel
- full
- steel sleeve
- sleeve
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- 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.)
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 154
- 239000010959 steel Substances 0.000 title claims abstract description 154
- 238000005553 drilling Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000004888 barrier function Effects 0.000 claims abstract description 30
- 230000008569 process Effects 0.000 claims abstract description 7
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 2
- 230000035515 penetration Effects 0.000 abstract description 12
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 6
- 239000011435 rock Substances 0.000 description 5
- 239000002689 soil Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002002 slurry Substances 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
- E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
-
- 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
- E21B10/00—Drill bits
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
- E21B10/43—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
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 discloses a kind of steel sleeves, full-sleeve full-rotation drill and drilling machine drilling method, the steel sleeve includes steel bushing tube body, tooth bed, tooth set and fastener, multiple tooth beds are embedded on the tube wall of steel bushing tube body one end, the tooth set for cutting is installed on the tooth bed, the tooth bed and tooth set are connected and fixed by the fastener, the tooth set includes internal tooth casing and external tooth cover, circular diameter is greater than the outer diameter of the steel sleeve where the outer contour of the external tooth cover tooth top, circular diameter is less than the internal diameter of the steel sleeve where the inner outline of the internal tooth casing tooth top.The full-sleeve full-rotation drill includes the steel sleeve.The full-sleeve full-rotation drill drilling method fills mud between the steel bushing pipe outer wall and barrier in drilling process.Invention increases barriers and steel bushing pipe outer wall gap, improve penetration rate, meanwhile, the tooth set is replaceable, reduces maintenance cost, improves steel bushing tube lifetime.
Description
Technical field
The present invention relates to earthmoving equipment technical fields, more particularly, to a kind of steel sleeve, full-sleeve full-rotation drill
And drilling machine drilling method.
Background technique
In recent years, with domestic economy fast development, large and medium-sized urban urban construction redevelopment project, old urban area change
Make, the projects such as subway tunnel, underground exterior-protected structure, bridge reconstruction and extension project are continuously increased, be frequently encountered subsurface rock and
The barriers such as remaining old concrete structure, old pile foundation.Barrier often results in underground structure and relocates change of address, directly affects engineering
Construction speed and quality, therefore the work for removing underground obstacle is particularly significant.
Barrier can be pulled out or be replaced in the case where not destroying the periphery soil body by full-sleeve full-rotation drill, can also
What progress drilling pouring occlusion pile was engaged firmly goes along with sb. to guard him construction.Full-sleeve full-rotation drill is widely used in rail traffic, large size
Underground deep layer barrier and all kinds of occlusion pile foundation constructions are pulled out in cross-river tunnel construction.Existing full-sleeve full-rotation drill
Casing cut the soil body or intensity it is not high barrier drilling depth it is very fast, but face barrier intensity higher (such as concrete structure, rock
Body) when, penetration rate substantially reduces.Simultaneously because pipe tooth is integrated pipe tooth, once damage, entire casing will be scrapped.
Summary of the invention
The purpose of the present invention is to provide a kind of steel sleeve, full-sleeve full-rotation drill and drilling machine drilling methods, to reduce
The lower brill resistance of steel sleeve improves penetration rate, meanwhile, extend steel sleeve service life, improve construction efficiency, reduction is constructed into
This.
In order to achieve the above object, the present invention provides a kind of steel sleeves, comprising: steel bushing tube body, tooth bed, tooth set and tight
Firmware is embedded in multiple tooth beds on the tube wall of steel bushing tube body one end, the tooth set for cutting is equipped on the tooth bed,
The tooth bed and tooth set are connected and fixed by the fastener, and the tooth set includes internal tooth casing and external tooth cover, the external tooth
Circular diameter where covering the outer contour of tooth top is greater than the outer diameter of the steel sleeve, circle where the inner outline of the internal tooth casing tooth top
Diameter is less than the internal diameter of the steel sleeve.
Optionally, steel bushing tube body one end tube wall be equipped with multiple recessed rectangular notches, the tooth bed for institute
The adaptable rectangular block of notch is stated, the tooth bed and the steel bushing tube body are welded to connect.
Optionally, the tooth set includes cutting edge part and coupling part, and the coupling part fluting is set with the tooth bed,
The fastener is countersunk bolt, is provided with through-hole on the tooth bed, the coupling part corresponding position is provided with threaded hole, institute
Tooth set is stated to connect with the tooth bed by the countersunk bolt.
Optionally, the tooth bed for installing the internal tooth casing is biased to inside the steel sleeve far from steel bushing tube body one end,
The tooth bed for installing the external tooth cover is biased to outside the steel sleeve far from steel bushing tube body one end.
Optionally, the external tooth cover, the internal tooth casing are arranged as two external tooth covers, an internal tooth casing alternating
Arrangement or the external tooth cover, the internal tooth casing be arranged as the external tooth cover, an internal tooth casing is alternately arranged.
Optionally, the tooth set further includes middle tooth set, and circular diameter where the outer contour of the middle tooth set tooth top is less than institute
The outer diameter of steel sleeve is stated, circular diameter where the inner outline of the middle tooth set tooth top is greater than the internal diameter of the steel sleeve.
Optionally, the tooth bed for installing the middle tooth set is parallel with the axis of the steel bushing tube body, installs the internal tooth casing
Tooth bed be biased to inside the steel sleeve far from steel bushing tube body one end, the tooth bed of the external tooth cover is installed far from the steel
It is biased to outside the steel sleeve sleeve body one end.
Optionally, the external tooth cover, middle tooth set and the internal tooth casing are arranged as the middle tooth set, the external tooth
Set, the middle tooth set, the internal tooth casing are alternately arranged.
The present invention also provides a kind of full-sleeve full-rotation drill, the full-sleeve full-rotation drill includes the steel sleeve.
The present invention also provides a kind of full-sleeve full-rotation drill drilling methods, are cut using the full-sleeve full-rotation drill
Barrier in drilling process, fills mud between the steel bushing pipe outer wall and the barrier.
In a kind of steel sleeve provided by the invention, full-sleeve full-rotation drill and drilling machine drilling method, the steel sleeve
Including steel bushing tube body, tooth bed, tooth set and fastener, multiple tooth beds, the tooth are embedded on the tube wall of steel bushing tube body one end
The tooth set for cutting is installed, the tooth bed and tooth set are detachably connected by the fastener, are convenient on bed
The tooth set damage replacement, the tooth set include internal tooth casing and external tooth cover, and circle where the outer contour of the external tooth cover tooth top is straight
Diameter is greater than the outer diameter of the steel sleeve, and circular diameter is less than the interior of the steel sleeve where the inner outline of the internal tooth casing tooth top
Diameter.It is crept into using the full-sleeve full-rotation drill of the steel sleeve, since the outer contour of external tooth is greater than steel bushing pipe outside diameter, internal tooth
Inner outline be less than steel bushing bore, gap between barrier and the steel bushing pipe outer wall, inner wall increases, and reduces described
The frictional resistance of steel sleeve improves penetration rate, meanwhile, mud is filled between the steel bushing pipe outer wall and the barrier
Slurry can further decrease the frictional resistance of the steel sleeve, improve penetration rate.
Detailed description of the invention
Fig. 1 is the steel sleeve structural schematic diagram that one embodiment of the invention provides；
Fig. 2 is the external tooth cover for the steel sleeve that one embodiment of the invention provides, internal tooth casing arrangement schematic diagram；
Fig. 3 is external tooth cover, middle tooth set, internal tooth casing the arrangement schematic diagram for the steel sleeve that one embodiment of the invention provides；
Fig. 4 is the schematic cross-sectional view for the steel sleeve that one embodiment of the invention provides；
Fig. 5 is the steel sleeve drilling schematic diagram that one embodiment of the invention provides；
Fig. 6 is the end view for the steel sleeve that one embodiment of the invention provides；
Wherein: 10- steel bushing tube body, 20- tooth bed, 30- tooth set, 31- external tooth cover, 32- internal tooth casing, tooth set in 33-, 40-
Mud.
Specific embodiment
A specific embodiment of the invention is described in more detail below in conjunction with schematic diagram.According to following description and
Claims, advantages and features of the invention will become apparent from.It should be noted that attached drawing is all made of very simplified form and
Using non-accurate ratio, only for the purpose of facilitating and clarifying the purpose of the embodiments of the invention.
One embodiment of the invention provides a kind of steel sleeve, and Fig. 1 is the steel sleeve structural representation that one embodiment of the invention provides
Figure, Fig. 4 are the schematic cross-sectional views for the steel sleeve that one embodiment of the invention provides, and as shown in Figure 1 and Figure 4, the steel sleeve includes
Steel bushing tube body 10, tooth bed 20, tooth cover 30 and fastener, are embedded in multiple tooth beds 20 on 10 one end tube wall of steel bushing tube body,
It is equipped on the tooth bed 20 and covers 30 for the tooth of cutting, the tooth bed 20 and tooth set 30 are connected by the fastener
Fixation is connect, the tooth set 30 includes internal tooth casing 32 and external tooth cover 31, circular diameter where the outer contour of 31 tooth top of external tooth cover
Greater than the outer diameter 1cm of the steel sleeve, circular diameter is less than the steel sleeve where the inner outline of 32 tooth top of internal tooth casing
Internal diameter 1cm.
The steel sleeve pipe tooth of existing full-sleeve full-rotation drill is an integral structure with steel bushing tube body, the interior table of pipe tooth
The inner wall of face and steel bushing tube body is in same plane, and the outer surface of pipe tooth and the outer wall of steel bushing tube body are in same plane.Steel bushing
The pipe tooth of pipe cuts barrier (such as concrete structure, rock mass), and barrier can still be close to steel sleeve, later period steel sleeve after incision
Overcome and bored under the frictional resistance of tube wall and barrier, therefore, integrated steel casing cut the soil body or the not high barrier of intensity into
Ruler is very fast, but when cutting the rock mass higher or with some strength of barrier intensity, penetration rate is substantially reduced.Simultaneously because pipe
Tooth is integrated pipe tooth, once damage, entire steel sleeve will be scrapped.In the present embodiment, the steel sleeve includes steel sleeve sheet
Body 10, tooth bed 20 and tooth set 30, the tooth bed 20 are connected with tooth set 30 by fastener, can after 30 damage of tooth set
Replacement rapidly, has saved production cost.Tooth set 30 includes internal tooth casing 32 and external tooth cover 31,31 tooth top of external tooth cover it is outer
Circular diameter where contour line is greater than the outer diameter of the steel sleeve, and circular diameter where the inner outline of 32 tooth top of internal tooth casing is less than
The internal diameter of the steel sleeve.In the steel sleeve drilling process, barrier and steel bushing pipe outer wall gap increase, and reduce institute
The frictional resistance for stating steel sleeve, improves penetration rate.
As preferable embodiment, as shown in Figure 1 and Figure 4,10 one end tube wall of steel bushing tube body is equipped with multiple
Recessed rectangular notch, the tooth bed 20 are the rectangular block being adapted with the notch, the tooth bed 20 and the steel sleeve sheet
Body 10 is welded to connect.The tooth set 30 includes cutting edge part and coupling part, and the coupling part fluting is set with the tooth bed
20, the fastener is countersunk bolt, is provided with through-hole on the tooth bed 20, the coupling part corresponding position is provided with screw thread
Hole, the tooth set 30 are connect with the tooth bed 20 by the countersunk bolt.
As preferable embodiment, Fig. 6 is the end view for the steel sleeve that one embodiment of the invention provides, such as Fig. 6
Shown, on 10 one end end face of steel bushing tube body, the center of circle O of the notch center line L and the steel sleeve has a spacing
From.The tooth bed 20 is embedded in the notch, and the tooth covers on the tooth bed 20 that 30 are mounted on, and a seamed edge of the tooth set 30 is stretched
The outer wall of the steel bushing tube body 10 cuts barrier as main cutting edge out, improves the stress of the tooth set 30, mentions
The high tooth covered for 30 service life.
As preferable embodiment, as shown in figure 4, the axis of the tooth bed 20 and the steel bushing tube body 10 has centainly
Angle, the tooth bed 20 for installing the internal tooth casing 32 are biased to inside the steel sleeve (form β far from described 10 one end of steel bushing tube body
Angle), after installing the internal tooth casing 32, circular diameter is less than the interior of the steel sleeve where the inner outline of 32 tooth top of internal tooth casing
Diameter；The tooth bed 20 for installing the external tooth cover 31 is biased to outside the steel sleeve (form α far from described 10 one end of steel bushing tube body
Angle), after installing the external tooth cover 31, circular diameter where the outer contour of 31 tooth top of external tooth cover is greater than the outer of the steel sleeve
Diameter.In the steel sleeve drilling process, due to the presence of external tooth cover and internal tooth casing, barrier and the steel bushing pipe outer wall, inside
Between gap increase, reduce the frictional resistance of the steel sleeve, improve penetration rate, be suitable for cutting barrier intensity compared with
The high or rock mass with some strength.
As preferable embodiment, Fig. 2 is the external tooth cover for the steel sleeve that one embodiment of the invention provides, internal tooth casing arrangement
Schematic diagram, as shown in Fig. 2, the external tooth cover 31, the internal tooth casing 32 be arranged as two external tooth covers 31, one it is described in
Tooth set 32 is alternately arranged.The arrangement of the external tooth cover 31, the internal tooth casing 32 is also possible to 31, internal tooth casings of an external tooth cover
32 are alternately arranged.
As preferable embodiment, the tooth set 30 is also designed to include external tooth cover 31, middle tooth set 33 and internal tooth
Set 32, circular diameter where the middle tooth covers the outer contour of 33 tooth tops are less than the outer diameter of the steel sleeve, and the middle tooth covers 33 teeth
Circular diameter is greater than the internal diameter of the steel sleeve where the inner outline on top.The tooth bed 20 and the steel bushing of the middle tooth set 33 are installed
The axis of tube body 10 is parallel, installs the tooth bed 20 and the steel bushing tube body 10 of the external tooth cover 31 and the internal tooth casing 32
Axis has certain angle.The tooth bed 20 for installing the internal tooth casing 32 is biased to the steel sleeve far from described 10 one end of steel bushing tube body
Inside, after installing the internal tooth casing 32, circular diameter is less than the steel sleeve where the inner outline of 32 tooth top of internal tooth casing
Internal diameter；The tooth bed 20 for installing the external tooth cover 31 is biased to outside the steel sleeve far from described 10 one end of steel bushing tube body, installation
After the external tooth cover 31, circular diameter is greater than the outer diameter of the steel sleeve where the outer contour of 31 tooth top of external tooth cover.Outside
Tooth set in increasing on the basis of tooth set, internal tooth casing, due to the presence of external tooth cover and internal tooth casing, outside barrier and the steel sleeve
Gap increases between wall, inside, reduces the frictional resistance of the steel sleeve and middle tooth set, accelerates middle tooth set cutting speed,
Improve penetration rate.
As preferable embodiment, Fig. 3 is the external tooth cover of steel sleeve, middle tooth set, interior that one embodiment of the invention provides
Tooth set arrangement schematic diagram, as shown in figure 3, the external tooth cover 31, middle tooth set 33 and the internal tooth casing 32 be arranged as it is described
Middle tooth set 33, the external tooth cover 31, the middle tooth set 33, the internal tooth casing 32 are alternately arranged.It should be noted that the external tooth
The quantity and arrangement mode of set, the middle tooth set and the internal tooth casing can adjust according to the actual situation, and the present embodiment is not to institute
The quantity and arrangement mode for stating external tooth cover, the middle tooth set and the internal tooth casing are limited in any way.
One embodiment of the invention also provides a kind of full-sleeve full-rotation drill, and the full-sleeve full-rotation drill includes described
Steel sleeve.
One embodiment of the invention also provides a kind of full-sleeve full-rotation drill drilling method, using the full-sleeve full-rotation
Drilling machine cuts barrier, and Fig. 5 is the steel sleeve drilling schematic diagram that one embodiment of the invention provides, as shown in figure 5, drilling process
In, mud 40 is filled between the steel bushing pipe outer wall and the barrier.The steel bushing pipe outer wall and the barrier it
Between fill mud 40, can further decrease the frictional resistance of the steel sleeve, improve penetration rate.
In conclusion a kind of steel sleeve, full-sleeve full-rotation drill and the drilling machine drilling that are provided in one embodiment of the invention
In method, including steel bushing tube body, tooth bed, tooth cover and fastener, is embedded in multiple tooth beds on the tube wall of steel bushing tube body one end,
The tooth set for cutting is installed on the tooth bed, the tooth bed and tooth set are connected and fixed by the fastener,
The tooth set includes internal tooth casing and external tooth cover, and circular diameter is greater than the steel sleeve where the outer contour of the external tooth cover tooth top
Outer diameter, circular diameter is less than the internal diameter of the steel sleeve where the inner outline of the internal tooth casing tooth top.The full-sleeve full-rotation
Drilling machine includes the steel sleeve.The tooth bed and tooth set are detachably connected by the fastener, convenient for tooth set damage
Bad replacement, reduces maintenance cost, improves steel bushing tube lifetime；Crept into using the full-sleeve full-rotation drill, barrier with
Gap between the steel bushing pipe outer wall, inner wall increases, and reduces the frictional resistance of the steel sleeve, improves penetration rate；
The full-sleeve full-rotation drill drilling method cuts barrier using the full-sleeve full-rotation drill, in drilling process,
Mud is filled between the steel bushing pipe outer wall and the barrier, the mud of filling can further decrease the friction of the steel sleeve
Resistance further improves penetration rate.
The above is only a preferred embodiment of the present invention, does not play the role of any restrictions to the present invention.Belonging to any
Those skilled in the art, in the range of not departing from technical solution of the present invention, to the invention discloses technical solution and
Technology contents make the variation such as any type of equivalent replacement or modification, belong to the content without departing from technical solution of the present invention, still
Within belonging to the scope of protection of the present invention.
Claims (10)
1. a kind of steel sleeve, which is characterized in that including steel bushing tube body, tooth bed, tooth set and fastener, the steel bushing tube body one
It is embedded in multiple tooth beds on end pipe wall, the tooth set for cutting is installed on the tooth bed, the tooth set protrudes the steel bushing
The end face of tube body, the tooth bed and tooth set are connected and fixed by the fastener, and the tooth set is including internal tooth casing and outside
Tooth set, circular diameter is greater than the outer diameter of the steel sleeve where the outer contour of the external tooth cover tooth top, the internal tooth casing tooth top
Circular diameter is less than the internal diameter of the steel sleeve where inner outline.
2. steel sleeve according to claim 1, which is characterized in that on the tube wall of steel bushing tube body one end circumferentially uniformly
Equipped with multiple recessed rectangular notches, the tooth bed is the rectangular block being adapted with the notch, and the tooth bed is welded on described
At the rectangular notch of steel bushing tube body.
3. steel sleeve according to claim 2, which is characterized in that the tooth set includes cutting edge part and coupling part,
The coupling part fluting is set with the tooth bed, and the fastener is countersunk bolt, is provided with through-hole, the company on the tooth bed
It connects partial response position and is provided with threaded hole, the tooth set is connect with the tooth bed by the countersunk bolt.
4. steel sleeve according to claim 3, which is characterized in that install the tooth bed of the internal tooth casing far from the steel sleeve
Ontology one end is biased to inside the steel sleeve, installs the tooth bed of the external tooth cover far from described in the deviation of steel bushing tube body one end
Outside steel sleeve.
5. steel sleeve according to claim 4, which is characterized in that the external tooth cover, the internal tooth casing are arranged as two
The external tooth cover, an internal tooth casing is alternately arranged or the external tooth cover, the internal tooth casing be arranged as one it is described outer
Tooth set, an internal tooth casing are alternately arranged.
6. steel sleeve according to claim 3, which is characterized in that the tooth set further includes middle tooth set, and the middle tooth covers tooth
Circular diameter where the outer contour on top is less than the outer diameter of the steel sleeve, circular diameter where the inner outline of the middle tooth set tooth top
Greater than the internal diameter of the steel sleeve.
7. steel sleeve according to claim 6, which is characterized in that the tooth bed of the installation middle tooth set and the steel sleeve sheet
The axis of body is parallel, and the tooth bed for installing the internal tooth casing is biased to inside the steel sleeve far from steel bushing tube body one end, peace
The tooth bed for filling the external tooth cover is biased to outside the steel sleeve far from steel bushing tube body one end.
8. steel sleeve according to claim 7, which is characterized in that the external tooth cover, the middle tooth set and the internal tooth casing
The be arranged as middle tooth set, the external tooth cover, the middle tooth set, the internal tooth casing be alternately arranged.
9. a kind of full-sleeve full-rotation drill, which is characterized in that the full-sleeve full-rotation drill includes according to claim 1-8
Steel sleeve described in any one.
10. a kind of full-sleeve full-rotation drill drilling method, which is characterized in that use full-sleeve according to claim 9
Full-rotating drill cuts barrier, in drilling process, fills mud between the steel bushing pipe outer wall and the barrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811604988.7A CN109488209A (en) | 2018-12-26 | 2018-12-26 | A kind of steel sleeve, full-sleeve full-rotation drill and drilling machine drilling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811604988.7A CN109488209A (en) | 2018-12-26 | 2018-12-26 | A kind of steel sleeve, full-sleeve full-rotation drill and drilling machine drilling method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109488209A true CN109488209A (en) | 2019-03-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811604988.7A Pending CN109488209A (en) | 2018-12-26 | 2018-12-26 | A kind of steel sleeve, full-sleeve full-rotation drill and drilling machine drilling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109488209A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111155513A (en) * | 2019-12-30 | 2020-05-15 | 深圳市盛业地下工程有限公司 | Full-slewing drilling machine and hydraulic vibration hammer cooperative well drilling method |
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Application publication date: 20190319 |