CN108487869A - The multi-functional double sleeve slewing drilling machine drilling rods of one kind and its construction method - Google Patents
The multi-functional double sleeve slewing drilling machine drilling rods of one kind and its construction method Download PDFInfo
- Publication number
- CN108487869A CN108487869A CN201810318900.9A CN201810318900A CN108487869A CN 108487869 A CN108487869 A CN 108487869A CN 201810318900 A CN201810318900 A CN 201810318900A CN 108487869 A CN108487869 A CN 108487869A
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- Prior art keywords
- drilling rod
- interior
- drilling
- slurry discharging
- rod
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- 238000005553 drilling Methods 0.000 title claims abstract description 279
- 238000010276 construction Methods 0.000 title claims description 14
- 239000002002 slurry Substances 0.000 claims abstract description 86
- 238000007599 discharging Methods 0.000 claims abstract description 78
- 238000007569 slipcasting Methods 0.000 claims abstract description 21
- 239000002689 soil Substances 0.000 claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- 238000005266 casting Methods 0.000 claims abstract description 8
- 230000002787 reinforcement Effects 0.000 claims abstract description 6
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 9
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- 229910000754 Wrought iron Inorganic materials 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 4
- 239000003818 cinder Substances 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 abstract description 7
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000013461 design Methods 0.000 abstract description 2
- 239000007921 spray Substances 0.000 abstract 1
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B17/18—Pipes provided with plural fluid passages
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/003—Injection of material
Abstract
The multi-functional double sleeve slewing drilling machine drilling rods of one kind of the present invention, including：Interior drilling rod and outer drilling rod；Several interior slurry discharging holes are arranged in interior drilling rod side from the bottom to top；Outer drill rod sleeve is outside interior drilling rod and several outer slurry discharging holes are arranged in outer drilling rod side from the bottom to top；Interior drilling rod is identical with outer slurry discharging hole size with the interior slurry discharging hole of outer drilling rod corresponding position；The top of interior drilling rod is equipped with inner flange, and bottom is interior cutterhead；The top of outer drilling rod is equipped with outward flange disk, and bottom is outer cutterhead.The present invention realizes and orientation slip casting can be achieved when the alignment of two slurry discharging holes of inside and outside drilling rod while drilling, the soil layer for not needing comprehensive reinforcing can avoid slip casting using inside and outside double set cylinder drill pipe designs.In addition, by adjusting the overlapping area of inside and outside slurry discharging hole, slurries can be adjusted and spray pressure, complete the grouting and reinforcing to different condition soil layer.Drilling rod can stay in underground, be put into drilling rod steel reinforcement cage and casting concrete can pile, formation of pile influences surrounding buildings small, and strength of the mixing pile is high.
Description
Technical field
The invention belongs to technical field of engineering machinery, more particularly to a kind of multi-functional double sleeve slewing drilling machine drilling rods and its apply
Work method.
Background technology
In recent years, China's urban development is quick, and traffic above-ground congestion is serious, and people also increasingly pay attention to Underground Space Resource
Utilization build subway to alleviate traffic above-ground pressure and related auxiliary facility have become the trend of each big-and-middle urban development in China.
Around existing subway tunnel when the pile foundation of construction newly-built structure object, it will have an adverse effect to structure of the subway.Therefore, it answers
Grouting and reinforcing measure is taken to the soil within the scope of adjacent subway tunnel certain depth in advance, to reduce new building pile foundation construction
Subway tunnel structure offset, sedimentation and excessive deformation caused by possibility in the process.
Existing slewing drilling machine only has the simple function of drilling, adds to the slip casting of the soil body before can not completing bored pile
Gu construction operation.Also, when using the drilling of existing slewing drilling machine, drilling rod is outer to be in direct contact with the soil body, is crept into, work progress
Surrounding soil is disturbed very big.Drilling rod is also first extracted when pile, after being put into steel reinforcement cage, reinsert tremie, and
It needs to carry conduit on while concrete perfusion, constructing operation is cumbersome.
Invention content
In order to solve the above technical problems, the object of the present invention is to provide a kind of multi-functional double sleeve slewing drilling machine drilling rods and its
Construction method, it can be achieved that a certain range of unidirectional grout simultaneously can pile, it is simple in structure, usability is strong.By being bored in rotation
Slurry discharging hole and the area of outer slurry discharging hole overlapping, can be first to different after the completion of drilling to change grouting pressure in bar adjustment
Soil layer is oriented grouting and reinforcing.Drilling rod can stay in underground, prevent hole wall collapse, to native around in entire drilling and formation of pile
Body disturbance is small.
The present invention provides a kind of multi-functional double sleeve slewing drilling machine drilling rods, including：Interior drilling rod and outer drilling rod；The interior drilling rod
Several interior slurry discharging holes are arranged in side from the bottom to top；The outer drill rod sleeve outside the interior drilling rod and outer drilling rod side from the bottom to top
Arrange several outer slurry discharging holes；Interior drilling rod is identical with the size of outer slurry discharging hole with the interior slurry discharging hole of outer drilling rod corresponding position；Two bore
Bar is hollow tubular and gap at regular intervals is stayed in centre；The top of the interior drilling rod is equipped with inner flange, and bottom is interior cutterhead；
The top of the outer drilling rod is equipped with outward flange disk, and bottom is outer cutterhead.
In multi-functional double sleeve slewing drilling machine drilling rods of the present invention, interior positioning is offered above the bar wall of the interior drilling rod
Hole, offers outer location hole above the bar wall of the outer drilling rod, by the way that pilot pin is inserted into outer location hole and interior positioning when drilling
Hole is to ensure that dislocation rotation does not occur for interior drilling rod and outer drilling rod.
In multi-functional double sleeve slewing drilling machine drilling rods of the present invention, the length of the interior drilling rod is more than the length of outer drilling rod
Degree.
Pass through inner flange in multi-functional double sleeve slewing drilling machine drilling rods of the present invention, when drilling and connects drill bit and interior brill
Bar, to drive drilling rod is at the uniform velocity lower to bore.
In multi-functional double sleeve slewing drilling machine drilling rods of the present invention, on the bar wall of interior drilling rod and outer drilling rod along the circumferential direction
Several tag lines of different thickness are set from top to bottom, and the tag line with interior slurry discharging hole and the slurry centerline hole corresponding position that leaks is
A thin tag line is arranged every 1 ° in thick line, other regions within the scope of hole width, according to brill in the scale rotation of tag line
Bar, the interior overlapping area between slurry discharging hole and outer slurry discharging hole of adjustment, to change grouting pressure.
In multi-functional double sleeve slewing drilling machine drilling rods of the present invention, further include it is several save it is long in lengthening the interior drilling rod
Degree it is additional in drilling rod and it is several save in the additional outer drilling rod for lengthening the outer run of steel, add in drilling rod and additional outer bore
The joint number of bar is identical, and the single-unit length of additional interior drilling rod is more than the single-unit length for adding outer drilling rod；The additional interior drilling rod
Both ends are designed with inner flange, and the lengthening of interior drilling rod is realized by connecting inner flange；The both ends for adding outer drilling rod are all set
There is outward flange disk, the lengthening of outer drilling rod is realized by connecting outward flange disk；
Several interior slurry discharging holes are arranged in the additional interior drilling rod side from the bottom to top；It is described to add outer drill rod sleeve described attached
Add interior drilling rod outer and add outer drilling rod side and arranges several outer slurry discharging holes from the bottom to top；Drilling rod and additional outer drilling rod pair in additional
Answer the interior slurry discharging hole of position identical with the size of outer slurry discharging hole；Two additional drill pipes are hollow tubular and seam at regular intervals is stayed in centre
Gap.
The present invention also provides a kind of construction methods of multi-functional double sleeve slewing drilling machine drilling rods, include the following steps：
Step 1：Embedded aperture steel pile casting, ensures that accurate positioning avoids aperture from caving in；
Step 2：Drilling machine is in place, by outer drill rod sleeve outside interior drilling rod, is fixed between the two with pilot pin, cannot generate opposite
Rotation；Drill bit and interior drilling rod are connected by inner flange, drill bit drives drilling rod rotation and the lower brill that remains a constant speed, protects in the process
Card drilling rod is vertical and interior slurry discharging hole and outer slurry discharging hole are in interleaved state, and multiple extension drill rod, sequence are needed according to drilling depth
It is the pilot pin first unloaded on inside and outside drilling rod, then by inner flange attachment plus interior drilling rod, adds finally by outward flange disk attachment
Outer drilling rod, blending bolt connect two inner flanges and two outward flange disks respectively；
Step 3：In drilling process, scarfing cinder is constantly carried out using mud cycle, mud is injected out of drilling rod, soil is exported outside bar
Slag；
Step 4：After getting into required depth, drill bit of drilling machine is unloaded, interior bore is rotated according to tag line according to required grouting pressure
Bar adjusts the overlapping area of interior slurry discharging hole and outer slurry discharging hole, when the thick tag line on interior drilling rod and outer drilling rod bar wall is completely superposed
When, indicate that the slurry discharging hole aperture of interior drilling rod and outer drilling rod is aligned completely；By the interior slurry discharging hole of rod iron insertion the top overlapping and outside
Slurry discharging hole fixes interior drilling rod and outer drilling rod；
Step 5：After adjustment, the slip casting core pipe that the double plugs of band are put into the interior drilling rod carries out slip casting, with completion pair
The orientation slip casting operation of different geological conditions soil layer；
Step 6：After completing slip casting, it is put into steel reinforcement cage, then casting concrete in drilling rod, pile finally can be achieved.
The multi-functional double sleeve slewing drilling machine drilling rods of one kind and its construction method of the present invention use inside and outside double set cylinder drill pipes
Orientation slip casting may be implemented when the alignment of two slurry discharging holes of inside and outside drilling rod in design, and the soil layer for not needing comprehensive reinforcing can
To avoid slip casting.In addition, by adjusting the size of inside and outside corresponding slurry discharging hole overlapping area, the ejection pressure of slurries can be adjusted,
Complete the grouting and reinforcing to different geological conditions soil layer.After the completion of slip casting, can also be directly placed into steel reinforcement cage, casting concrete at
Stake, drilling rod can stay in underground without proposing, on the one hand can effectively prevent hole wall collapse, on the other hand reduce work progress to surrounding
The disturbance of the soil body.
The configuration of the present invention is simple, it is easy to operate, material is saved, it is highly practical, reduce the unnecessary pollution to geological environment.
Description of the drawings
Fig. 1 is a kind of stereogram of multi-functional double sleeve slewing drilling machine drilling rods of the present invention；
The state diagram of Fig. 2 multi-functional double sleeve slewing drilling machine drilling rods when being drilling rod in rotation；
Fig. 3 is the sectional view that a kind of multi-functional double sleeve slewing drilling machine drilling rods of the present invention are spliced；
Fig. 4 is the stereogram of the interior drilling rod of the present invention；
Fig. 5 is the stereogram of the outer drilling rod of the present invention.
Specific implementation mode
As shown in Figures 1 to 5, the multi-functional double sleeve slewing drilling machine drilling rods of one kind of the invention, including：Interior drilling rod 1 and outer
Drilling rod 2.Several interior slurry discharging holes 51 are arranged in 1 side of interior drilling rod from the bottom to top；The outer drilling rod 2 is sleeved on the interior drilling rod 1
Several outer slurry discharging holes 52 are arranged in outer and outer drilling rod side from the bottom to top.The interior slurry discharging hole of 2 corresponding position of interior drilling rod 1 and outer drilling rod
51 is identical with the size of outer slurry discharging hole 52.Two drilling rods are hollow tubular and gap at regular intervals is stayed in centre.The interior drilling rod 1
Top is equipped with inner flange 41, and bottom is interior cutterhead 61；The top of the outer drilling rod 2 is equipped with outward flange disk 42, and bottom is outer knife
Disk 62.
Drill bit has been hung in the top of the interior drilling rod 1, drill bit and interior drilling rod 1 is connected by inner flange 41 when drilling, to drive
Drilling rod is at the uniform velocity lower to be bored.Drive drilling rod rotation, the interior cutterhead 61 and outer cutterhead 62 of 2 bottom of interior drilling rod 1 and outer drilling rod even by drill bit
Speed is lower to bore, and realizes drilling.Interior location hole 31 is offered above the bar wall of interior drilling rod 1, is offered above the bar wall of the outer drilling rod 2
Outer location hole 32.Before lower brill, interior drilling rod 1 and outer is ensured by the way that pilot pin 9 is inserted into outer location hole 32 and interior location hole 31
Dislocation rotation does not occur for drilling rod 2.
The length of the interior drilling rod 1 is more than the length of outer drilling rod 2.On the bar wall of interior drilling rod 1 and outer drilling rod 2 along the circumferential direction
Several tag lines of different thickness are set from top to bottom, the mark with 52 center line corresponding position of interior slurry discharging hole 51 and outer slurry discharging hole
Line is thick line, and a thin tag line is arranged every 1 ° in other regions within the scope of hole width.
When it is implemented, 1 outer wall of interior drilling rod is equipped with the first thick tag line 71 and several first thin tag lines 72, the outer brill
2 outer wall of bar is equipped with the second thick tag line 81 and several second thin tag lines 82.According to drilling rod 1 in the scale rotation of tag line, adjust
Overlapping area between whole interior slurry discharging hole 51 and outer slurry discharging hole 52, to change grouting pressure.
As shown in Figure 1, its center of the bore of interior slurry discharging hole 51 is all in a vertical straight line, the bore of outer slurry discharging hole 52 its
Center is all in a vertical straight line, and drilling rod 1 makes the first thick tag line 71 and the second thick tag line in ground construction personnel rotation
81 when being in alignment, and interior slurry discharging hole 51 and outer slurry discharging hole 52 are aligned, and overlapping area is maximum.At this point, in the top slurry discharging hole
Place is inserted into rod iron and fixes interior drilling rod 1 and outer drilling rod 2.It can ensure the interior slurry discharging hole 51 and outer slurry discharging hole 52 of under ground portion simultaneously
Alignment, to realize orientation grouting and reinforcing.
As shown in Fig. 2, being a kind of state diagram during drilling rod 1 in rotation in figure.Slurries are gushed from two slurry discharging hole intersections
Go out, intersection bore is adjustable, and main purpose is to realize that grouting pressure is adjustable, for the soil under different geological conditions
Layer, may be used different pressure injection slurries, is reinforced, and actual conditions when concrete condition is according to construction select.Inside let out
Slurry hole 51 and the size of 52 overlapping area of outer slurry discharging hole determine by the tag line on the bar wall of inside and outside drilling rod, concrete operation method
For：The state of 2 bar wall high scale line overlap of interior drilling rod 1 and outer drilling rod is observed by drilling rod in rotation 1, and then determines two slurry discharging holes
Overlapping area.When the second thick tag line 81 on 2 wall of the first thick tag line 71 and outer drilling rod on 1 bar wall of interior drilling rod overlaps,
Slurry discharging hole and outer slurry discharging hole are completely superposed in indicating, slip casting bore is maximum, grouting pressure is minimum.In addition, interior drilling rod is along outer brill
Bar often turns over a thin tag line, indicates that it rotates 1 ° around outer tube, i.e., inside and outside slurry discharging hole overlapping area reduces, and slip casting bore subtracts
Small, grouting pressure increases.The orientation slip casting under different pressures can be carried out in Specific construction according to requiring to adjust.Adjust overlapping
After area, rod iron of different thickness is inserted into the slurry discharging hole of the top according to overlapping area size, by interior drilling rod 1 and outer drilling rod
2 fix.
As shown in figure 3, multi-functional double sleeve slewing drilling machine drilling rods of the present invention further include：It is several to save in lengthening is described
Run of steel it is additional in drilling rod and it is several save in the additional outer drilling rod for lengthening the outer run of steel, add in drilling rod and attached
Add the joint number of outer drilling rod identical, and the single-unit length of additional interior drilling rod is more than the single-unit length for adding outer drilling rod；It is described additional interior
The both ends of drilling rod are designed with inner flange, and the lengthening of interior drilling rod is realized by connecting inner flange；It is described to add the two of outer drilling rod
End is designed with outward flange disk, and the lengthening of outer drilling rod is realized by connecting outward flange disk；The additional interior drilling rod side is from the bottom to top
Arrange several interior slurry discharging holes；It is described to add outer drill rod sleeve outside the additional interior drilling rod and add outer drilling rod side from the bottom to top
Arrange several outer slurry discharging holes；The size phase of the interior slurry discharging hole and outer slurry discharging hole of drilling rod and additional outer drilling rod corresponding position in additional
Together；Two additional drill pipes are hollow tubular and gap at regular intervals is stayed in centre.
When drilling depth is deeper, drilling rod 1 and outer drilling rod in more than 42 spreading of inner flange 41 and outward flange disk need to be passed through
2.Its sequence of construction is the inner flange 41 for first unloading pilot pin 9, then being connected with interior drilling rod 1 and additional interior drilling rod successively,
The length of drilling rod 1 in extending finally is connected with outer drilling rod 2 and adds the outward flange disk 42 of outer drilling rod, extends outer drilling rod 2
Length meets the needs of drilling depth to realize extension run of steel.
The present invention also provides a kind of construction methods of multi-functional double sleeve slewing drilling machine drilling rods, include the following steps：
Step 1：Embedded aperture steel pile casting, ensures that accurate positioning avoids aperture from caving in；
Step 2：Drilling machine is in place, by outer drill rod sleeve outside interior drilling rod, is fixed between the two with pilot pin, cannot generate opposite
Rotation；Drill bit and interior drilling rod are connected by inner flange, drill bit drives drilling rod rotation and the lower brill that remains a constant speed, protects in the process
Card drilling rod is vertical and interior slurry discharging hole and outer slurry discharging hole are in interleaved state, and multiple extension drill rod, sequence are needed according to drilling depth
It is the pilot pin first unloaded on inside and outside drilling rod, then by inner flange attachment plus interior drilling rod, adds finally by outward flange disk attachment
Outer drilling rod, blending bolt connect two inner flanges and two outward flange disks respectively；
Step 3：In drilling process, scarfing cinder is constantly carried out using mud cycle, mud is injected out of drilling rod, soil is exported outside bar
Slag；
Step 4：After getting into required depth, drill bit of drilling machine is unloaded, interior bore is rotated according to tag line according to required grouting pressure
Bar adjusts the overlapping area of interior slurry discharging hole and outer slurry discharging hole, when the thick tag line on interior drilling rod and outer drilling rod bar wall is completely superposed
When, indicate that the slurry discharging hole aperture of interior drilling rod and outer drilling rod is aligned completely；By the interior slurry discharging hole of rod iron insertion the top overlapping and outside
Slurry discharging hole fixes interior drilling rod and outer drilling rod；
Step 5：After adjustment, the slip casting core pipe that the double plugs of band are put into the interior drilling rod carries out slip casting, with completion pair
The orientation slip casting operation of different geological conditions soil layer；
Step 6：After completing slip casting, it is put into steel reinforcement cage, then casting concrete in drilling rod, pile finally can be achieved.
The foregoing is merely presently preferred embodiments of the present invention, the thought being not intended to limit the invention, all the present invention's
Within spirit and principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of multi-functional double sleeve slewing drilling machine drilling rods, which is characterized in that including：Interior drilling rod and outer drilling rod；The interior drilling rod
Several interior slurry discharging holes are arranged in side from the bottom to top；The outer drill rod sleeve outside the interior drilling rod and outer drilling rod side from the bottom to top
Arrange several outer slurry discharging holes；Interior drilling rod is identical with the size of outer slurry discharging hole with the interior slurry discharging hole of outer drilling rod corresponding position；Two bore
Bar is hollow tubular and gap at regular intervals is stayed in centre；The top of the interior drilling rod is equipped with inner flange, and bottom is interior cutterhead；
The top of the outer drilling rod is equipped with outward flange disk, and bottom is outer cutterhead.
2. multi-functional double sleeve slewing drilling machine drilling rods as described in claim 1, which is characterized in that on the bar wall of the interior drilling rod
Side offers interior location hole, offers outer location hole above the bar wall of the outer drilling rod, and when drilling is outer by the way that pilot pin to be inserted into
Location hole and interior location hole are to ensure that dislocation rotation does not occur for interior drilling rod and outer drilling rod.
3. multi-functional double sleeve slewing drilling machine drilling rods as described in claim 1, which is characterized in that the length of the interior drilling rod is big
In the length of outer drilling rod.
4. multi-functional double sleeve slewing drilling machine drilling rods as described in claim 1, which is characterized in that pass through inner flange when drilling
Drill bit and interior drilling rod are connected, to drive drilling rod is at the uniform velocity lower to bore.
5. multi-functional double sleeve slewing drilling machine drilling rods as described in claim 1, which is characterized in that the bar of interior drilling rod and outer drilling rod
Several tag lines of different thickness are along the circumferential direction set from top to bottom on wall, it is corresponding with interior slurry discharging hole and the slurry centerline hole that leaks
The tag line of position is thick line, and a thin tag line is arranged every 1 ° in other regions within the scope of hole width, according to tag line
Scale rotation in drilling rod, overlapping area between slurry discharging hole and outer slurry discharging hole in adjustment, to change grouting pressure.
6. multi-functional double sleeve slewing drilling machine drilling rods as described in claim 1, which is characterized in that further include several save in adding
The long interior run of steel it is additional in drilling rod and it is several save in the additional outer drilling rod for lengthening the outer run of steel, add in
Drilling rod is identical with the additional joint number of outer drilling rod, and the single-unit length of additional interior drilling rod is more than the single-unit length for adding outer drilling rod；Institute
The both ends for stating drilling rod in additional are designed with inner flange, and the lengthening of interior drilling rod is realized by connecting inner flange；It is described additional outer
The both ends of drilling rod are designed with outward flange disk, and the lengthening of outer drilling rod is realized by connecting outward flange disk；
Several interior slurry discharging holes are arranged in the additional interior drilling rod side from the bottom to top；It is described to add outer drill rod sleeve described additional interior
Several outer slurry discharging holes are arranged in the outer and additional outer drilling rod side of drilling rod from the bottom to top；Drilling rod corresponds to position with additional outer drilling rod in additional
The interior slurry discharging hole set is identical with the size of outer slurry discharging hole；Two additional drill pipes are hollow tubular and gap at regular intervals is stayed in centre.
7. a kind of construction method of multi-functional double sleeve slewing drilling machine drilling rods, which is characterized in that include the following steps：
Step 1：Embedded aperture steel pile casting, ensures that accurate positioning avoids aperture from caving in；
Step 2：Drilling machine is in place, by outer drill rod sleeve outside interior drilling rod, is fixed between the two with pilot pin, cannot generate opposite turn
It is dynamic；Drill bit and interior drilling rod are connected by inner flange, drill bit drives drilling rod rotation and the lower brill that remains a constant speed, ensures in the process
Drilling rod is vertical and interior slurry discharging hole and outer slurry discharging hole are in interleaved state, and according to the multiple extension drill rod of drilling depth need, sequence is
The pilot pin on inside and outside drilling rod is first unloaded, then by inner flange attachment plus interior drilling rod, is added finally by outward flange disk attachment outer
Drilling rod, blending bolt connect two inner flanges and two outward flange disks respectively；
Step 3：In drilling process, scarfing cinder is constantly carried out using mud cycle, mud is injected out of drilling rod, native slag is exported outside bar；
Step 4：After getting into required depth, drill bit of drilling machine is unloaded, interior drilling rod is rotated according to tag line according to required grouting pressure, is adjusted
The overlapping area of whole interior slurry discharging hole and outer slurry discharging hole, when the thick tag line on interior drilling rod and outer drilling rod bar wall is completely superposed, table
Show that the slurry discharging hole aperture of interior drilling rod and outer drilling rod is aligned completely；Rod iron is inserted into the interior slurry discharging hole of overlapping topmost and the slurry that leaks
Interior drilling rod and outer drilling rod are fixed in hole；
Step 5：After adjustment, the slip casting core pipe that the double plugs of band are put into the interior drilling rod carries out slip casting, to complete to difference
The orientation slip casting operation of geological conditions soil layer；
Step 6：After completing slip casting, it is put into steel reinforcement cage, then casting concrete in drilling rod, pile finally can be achieved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810318900.9A CN108487869B (en) | 2018-04-11 | 2018-04-11 | Multifunctional double-sleeve rotary drilling machine drill rod and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810318900.9A CN108487869B (en) | 2018-04-11 | 2018-04-11 | Multifunctional double-sleeve rotary drilling machine drill rod and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108487869A true CN108487869A (en) | 2018-09-04 |
| CN108487869B CN108487869B (en) | 2024-03-22 |
Family
ID=63315689
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810318900.9A Active CN108487869B (en) | 2018-04-11 | 2018-04-11 | Multifunctional double-sleeve rotary drilling machine drill rod and construction method thereof |
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| CN (1) | CN108487869B (en) |
Cited By (1)
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| CN116770806A (en) * | 2023-08-22 | 2023-09-19 | 广州市泰基工程技术有限公司 | Soft foundation treatment reinforcing apparatus of compound foundation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116770806A (en) * | 2023-08-22 | 2023-09-19 | 广州市泰基工程技术有限公司 | Soft foundation treatment reinforcing apparatus of compound foundation |
| CN116770806B (en) * | 2023-08-22 | 2023-11-14 | 广州市泰基工程技术有限公司 | Soft foundation treatment reinforcing apparatus of compound foundation |
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| CN108487869B (en) | 2024-03-22 |
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Effective date of registration: 20240401 Address after: Room 801, 85 Kefeng Road, Huangpu District, Guangzhou City, Guangdong Province Patentee after: Guangzhou Dayu Chuangfu Technology Co.,Ltd. Country or region after: China Address before: 110168 No. 9 Hunnan East Road, Hunnan District, Shenyang City, Liaoning Province Patentee before: SHENYANG JIANZHU University Country or region before: China |