CN107355188A - A kind of cannulated threaded shape drill bit and its application method suitable for the cast-in-place overlength screw rod pile driving construction of soft foundation - Google Patents
A kind of cannulated threaded shape drill bit and its application method suitable for the cast-in-place overlength screw rod pile driving construction of soft foundation Download PDFInfo
- Publication number
- CN107355188A CN107355188A CN201710593775.8A CN201710593775A CN107355188A CN 107355188 A CN107355188 A CN 107355188A CN 201710593775 A CN201710593775 A CN 201710593775A CN 107355188 A CN107355188 A CN 107355188A
- Authority
- CN
- China
- Prior art keywords
- drilling rod
- cannulated threaded
- threaded drilling
- cannulated
- drill bit
- 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
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
- E21B17/22—Rods or pipes with helical structure
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/56—Screw piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/72—Pile shoes
-
- 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
- E21B10/00—Drill bits
-
- 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
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
- E21B17/043—Threaded with locking means
Abstract
Invention provides a kind of cannulated threaded shape drill bit and its application method suitable for the cast-in-place overlength screw rod pile driving construction of soft foundation.The cannulated threaded shape drill bit includes shoe, cannulated threaded drilling rod I, some section cannulated threaded drilling rod II, some annular stirrups and some pins.During work, the lower end of cannulated threaded drilling rod I is connected with shoe, and upper end is connected with cannulated threaded drilling rod II or rig rotation driving section.The lower end of each cannulated threaded drilling rod II is connected with cannulated threaded drilling rod I or adjacent hollow threaded drillpipe II, and upper end is connected with adjacent hollow threaded drillpipe II or rig rotation driving section.The application method of the cannulated threaded shape drill bit includes the steps such as fixed shoe, installation cannulated threaded drilling rod I, drilling, reverse rotation lifting drill bit.The cannulated threaded shape drill bit avoids brill risk, phenomena such as collapse hole, shrinkage cavity are less prone in construction, and screw rod pile construction quality can ensure, the construction especially suitable for soft foundation screw rod pile.
Description
Technical field
The present invention relates to construction tool field, more particularly to a kind of cannulated threaded shape drill bit of extensible.
Background technology
Screw rod pile is compared with conventional straight-bar stake, in the case of pile body cross-sectional area and length identical, the stake side of screw rod pile
Area is much bigger, and the bearing capacity that pile side friction can provide is also just much bigger so that the bearing capacity of screw rod pile is more than normal
Straight-bar stake is advised, thus is favored by engineering circles and academia.
When stratum is soft, easily there is phenomena such as collapse hole, shrinkage cavity in screw rod pile drilling construction when, the construction technology of threaded rod
Usually：Hollow screw drill bit is first pierced underground desired depth with rig, then reinforcing bar and perfusion coagulation are installed in drill bit
Soil, finally reversely rotate lifting drill bit and form screw rod pile to ground.In this construction technology, the cannulated threaded shape for piercing underground bores
Head serves retaining wall effect simultaneously in the work progress such as drilling and forming hole, reinforcement installation and filling concrete, can avoid collapse hole, contracting
The generation of phenomena such as hole, the construction quality of screw rod pile are ensured.
Although the advantages of this screw rod pile constructing process be it will be apparent that its deficiency and protrusion, its deficiency is main
It is embodied in two aspects：One is due to that the cannulated threaded shape drill bit of use can not be changed or spreading in construction so that construction
In screw rod pile length can not be lengthened according to actual formation situation；Two be due to limitation or the construction area of drill height
The reasons such as the limitation of space particularly head room, the length of the cannulated threaded shape drill bit actually used in engineering can not possibly be very
It is long, the construction of overlength screw rod pile can not be realized.
The content of the invention
It is an object of the invention to provide a kind of cannulated threaded shape drill bit suitable for the cast-in-place overlength screw rod pile driving construction of soft foundation
And its application method, to solve problems of the prior art.
To realize that the technical scheme that the object of the invention uses is such, one kind is suitable to the cast-in-place overlength screw rod of soft foundation
The cannulated threaded shape drill bit of pile driving construction, including：Shoe, cannulated threaded drilling rod I, some section cannulated threaded drilling rods II, some annulars
Stirrup and some pins.
The shoe includes boots body and is arranged on the boots point of boots body bottom.The boots are as a cylinder.The boots
A sharp generally cone.The boots point includes top surface and side.The bottom surface of the top surface and boots body is affixed.The boots point exists
Top surface is provided with annular groove with boots body intersection.Sealing ring is installed in the annular groove.It is additionally provided with the top surface
At least two projection.Helical blade is provided with the side.
The open hollow circular cylinder of the cannulated threaded drilling rod I generally upper and lower side.The lower end of cannulated threaded drilling rod I is set
It is equipped with several grooves.The upper end of cannulated threaded drilling rod I has external screw thread.The cannulated threaded drilling rod I is set at screw thread
There is at least two radial direction through hole I.Helical blade is provided with the outer circle wall of the cannulated threaded drilling rod I.
The open hollow circular cylinder of the cannulated threaded drilling rod II generally upper and lower side.The cannulated threaded drilling rod is about II
End is respectively provided with external screw thread.The cannulated threaded drilling rod II is being each provided with least two radial direction through hole II at screw thread at two.In described
Helical blade is provided with the outer circle wall of empty threaded drillpipe II.
The annular stirrup has the internal thread to match with cannulated threaded drilling rod I and the external screw thread of cannulated threaded drilling rod II.
The annular stirrup is provided with the radial direction through hole III that two rows match with radial direction through hole I and radial direction through hole II.
During work, the lower end of cannulated threaded drilling rod I is connected with shoe, and upper end rotates with cannulated threaded drilling rod II or rig
Drive part connects.The lower end of each cannulated threaded drilling rod II connects with cannulated threaded drilling rod I or adjacent hollow threaded drillpipe II
Connect, upper end is connected with adjacent hollow threaded drillpipe II or rig rotation driving section.The cannulated threaded drilling rod I is formed with shoe
Grafting coordinates.The boots body is inserted into the lower end opening of cannulated threaded drilling rod I.The projection is fitted together in respective slot.Institute
Annular stirrup is stated to be removably attachable to cannulated threaded drilling rod II and adjacent cannulated threaded drilling rod I or cannulated threaded drilling rod II
Together.The lower end that the upper end of the cannulated threaded drilling rod I or cannulated threaded drilling rod II screws in annular stirrup is open, adjacent hollow spiral shell
The upper end that the lower end of line drilling rod II screws in annular stirrup is open.The pin sequentially passes through radial direction through hole III and corresponding radial direction is led to
Hole I or radial direction through hole II.
Further, the outer wall of the cannulated threaded drilling rod I, cannulated threaded drilling rod II and annular stirrup is provided with symmetrical card
Groove.The symmetrical neck of the cannulated threaded drilling rod I is arranged on below external screw thread.The symmetrical neck of the cannulated threaded drilling rod II is set
Put below upper external screw thread.
Invention additionally discloses a kind of on the above-mentioned cannulated threaded shape brill suitable for the cast-in-place overlength screw rod pile driving construction of soft foundation
The application method of head, comprises the following steps：
1) shoe is fixed at stake position.
2) cannulated threaded drilling rod I is installed.Wherein, the lower end of the cannulated threaded drilling rod I is connected with shoe, upper end and rig
Rotation driving section connects.
3) cannulated threaded drilling rod I and shoe are pierced into underground using rig.
4) after cannulated threaded drilling rod I is drilled into desired depth, the upper end of dismounting cannulated threaded drilling rod I and rig rotary driving part
The connection divided.And one section cannulated threaded drilling rod II is connected with piercing the cannulated threaded drilling rod I of underground using annular stirrup and pin
It is connected together.Wherein, the lower end of the cannulated threaded drilling rod II is connected with the upper end of cannulated threaded drilling rod I, and upper end is revolved with rig
Turn drive part connection.
5) the cannulated threaded drilling rod II connected, cannulated threaded drilling rod I and shoe are continued to pierce underground using rig.
6) after cannulated threaded drilling rod II is drilled into desired depth, the upper end of dismounting cannulated threaded drilling rod II and rig rotation driving
Partial connection.And another section cannulated threaded drilling rod II is bored with having been drilled into the cannulated threaded of underground using annular stirrup and pin
Bar II links together.Wherein, the lower end for the cannulated threaded drilling rod II newly installed and the cannulated threaded drilling rod II for having been drilled into underground
Upper end connection, upper end is connected with rig rotation driving section.
7) repeat step 5) and step 6), until the length of depth >=design screw rod pile of construction drill.Wherein, bored
The inner chamber of the cannulated threaded drilling rod I and cannulated threaded drilling rod II that enter underground collectively constitutes a vertical cavity.
8) upper end of top cannulated threaded drilling rod II and the connection of rig rotation driving section are dismantled.It is described perpendicular in step 7)
Reinforcing bar or steel reinforcement cage, and perfusion mortar or concrete are installed into cavity.
9) rotation driving section of the upper end of top cannulated threaded drilling rod II and rig is reconnected, reverse rotation carries
Drill bit is risen, until top cannulated threaded drilling rod II all is promoted into ground or is above the ground level.
10) the cannulated threaded drilling rod II for being promoted to ground is removed.
11) repeat step 9) and step 10), until the cannulated threaded drilling rod II for piercing underground is all removed.
12) cannulated threaded drilling rod I is promoted to ground and removed.
Further, also there is cleaning drilling tool after step 12) and arrange the correlation step of component.
The solution have the advantages that unquestionable：
A. during lifting threaded drillpipe is reversely rotated, each link position for saving cannulated threaded drilling rod can not disconnect, and keep away
Exempt to fall to bore risk；
B. all processes of the cannulated threaded bar drill bar in constructions such as screw rod pile pore-forming drilling, reinforcement installation, filling concretes
In play retaining wall effect, phenomena such as collapse hole, shrinkage cavity are less prone in construction, screw rod pile construction quality can ensure, especially suitable
Construction for soft foundation screw rod pile；
C. cannulated threaded bar drill bar can the spreading in construction as needed, suitable for the construction of overlength screw rod pile, by rig
Highly, the influence of the factor such as construction site is smaller.
D. shoe is provided with O-ring seal with cannulated threaded drilling rod contact position, can effectively prevent underground water, soil in construction
Body etc. enters inside cannulated threaded drilling rod, it is advantageously ensured that the construction quality of screw rod pile.
Brief description of the drawings
Fig. 1 is shoe sectional view；
Fig. 2 is boots point top view；
Fig. 3 is the structural representation of cannulated threaded drilling rod I；
Fig. 4 is the front view of cannulated threaded drilling rod I；
Fig. 5 is the structural representation of cannulated threaded drilling rod II；
Fig. 6 is annular stirrup structural representation；
Fig. 7 is cannulated threaded drilling rod I and the connection diagram of cannulated threaded drilling rod II；
Fig. 8 is cannulated threaded drilling rod II and the connection diagram of cannulated threaded drilling rod II
Fig. 9 is overall structure diagram.
In figure：It is shoe 1, boots body 101, boots point 102, top surface 1021, side 1022, annular groove 1023, projection 1024, close
Seal 103, cannulated threaded drilling rod I 2, groove 201, radial direction through hole I 202, cannulated threaded drilling rod II 3, radial direction through hole II 301, ring
Shape stirrup 4, radial direction through hole III 401, pin 5.
Embodiment
With reference to embodiment, the invention will be further described, but should not be construed the above-mentioned subject area of the present invention only
It is limited to following embodiments.Without departing from the idea case in the present invention described above, according to ordinary skill knowledge and used
With means, various replacements and change are made, all should be included within the scope of the present invention.
Embodiment 1：
The present embodiment discloses a kind of cannulated threaded shape drill bit suitable for the cast-in-place overlength screw rod pile driving construction of soft foundation, including：
Shoe 1, cannulated threaded drilling rod I 2, section cannulated threaded drilling rod II 3, annular stirrup 4 and pin 5.
Referring to Fig. 1 and Fig. 2, the shoe 1 includes boots body 101 and is arranged on the boots point 102 of the bottom of boots body 101.It is described
Boots body 101 is a cylinder.A boots point 102 generally cone.The bottom surface of this cone upward, summit court
Under.The boots point 102 includes the bottom surface that top surface 1021 is cone and side 1022 is the side of cone.The top surface 1021
It is affixed with the bottom surface of boots body 101.The boots point 102 is provided with annular groove 1023 in top surface 1021 and the intersection of boots body 101.Institute
State and sealing ring 103 is installed in annular groove 1023.3 projections 1024 are additionally provided with the top surface 1021.The projection
1024 are evenly arranged along the ring of top surface 1021.Helical blade is provided with the side 1022.During actual use, the quilt of shoe 1
After piercing underground desired depth, the pile top as screw rod pile is left in ground, without recovery.
Referring to Fig. 3 and Fig. 4, the open hollow circular cylinder of the cannulated threaded drilling rod I 2 generally upper and lower side.It is described hollow
The lower end of threaded drillpipe I 2 is provided with 3 grooves 201.The upper end of cannulated threaded drilling rod I 2 has external screw thread.The cannulated threaded
Drilling rod I 2 is provided with 4 radial direction through hole I 202 at screw thread.The radial direction through hole is circumferentially uniformly distributed.The cannulated threaded drilling rod
Helical blade is provided with I 2 outer circle wall.
Referring to Fig. 5, the open hollow circular cylinder of the cannulated threaded drilling rod II 3 generally upper and lower side.The cannulated threaded
The upper and lower side of drilling rod II 3 is respectively provided with external screw thread.The cannulated threaded drilling rod II 3 is being each provided with 4 radial direction through hole at screw thread at two
Ⅱ301.Helical blade is provided with the outer circle wall of the cannulated threaded drilling rod II 3.
Referring to Fig. 6, the annular stirrup 4 is the open hollow circular cylinder of upper and lower side.The annular stirrup 4 have with it is hollow
The internal thread that threaded drillpipe I 2 and the external screw thread of cannulated threaded drilling rod II 3 match.The annular stirrup 4 is provided with two rows and radial direction
The radial direction through hole III 401 that through hole I 202 and radial direction through hole II 301 match.
During work, the lower end of cannulated threaded drilling rod I 2 is connected with shoe 1, upper end and cannulated threaded drilling rod II 3 or rig
Rotation driving section connects.The lower end of each cannulated threaded drilling rod II 3 and cannulated threaded drilling rod I 2 or adjacent hollow threaded bore
Bar II 3 is connected, and upper end is connected with adjacent hollow threaded drillpipe II 3 or rig rotation driving section.Referring to Fig. 9, the hollow spiral shell
Line drilling rod I 2 forms grafting with shoe 1 and coordinated.The boots body 101 is inserted into the lower end opening of cannulated threaded drilling rod I 2.It is described
Projection 1024 is fitted together in respective slot 201.Referring to Fig. 7 and Fig. 8, the annular stirrup 4 by cannulated threaded drilling rod II 3 with it is adjacent
Cannulated threaded drilling rod I 2 or cannulated threaded drilling rod II 3 be removably attachable to together.The cannulated threaded drilling rod I 2 or hollow
The lower end that the upper end of threaded drillpipe II 3 screws in annular stirrup 4 is open, and the lower end of adjacent hollow threaded drillpipe II 3 screws in annular steel
The upper end of hoop 4 is open.The pin 5 sequentially passes through radial direction through hole III 401 and corresponding radial direction through hole I 202 or radial direction through hole II
301。
In the present embodiment, the outer wall of the cannulated threaded drilling rod I 2, cannulated threaded drilling rod II 3 and annular stirrup 4 is all provided with
Symmetrical neck is equipped with, with the cannulated threaded drilling rod below clamp fixed bottom boundary during to mount and dismount cannulated threaded drilling rod.Institute
The symmetrical neck for stating cannulated threaded drilling rod I 2 is arranged on below external screw thread.The symmetrical neck of the cannulated threaded drilling rod II 3 is set
Below upper external screw thread.
Embodiment 2：
The present embodiment discloses a kind of on being suitable to the hollow of the cast-in-place overlength screw rod pile driving construction of soft foundation described in embodiment 1
The application method of shape of threads drill bit, comprises the following steps：
1) shoe 1 is fixed at stake position.
2) cannulated threaded drilling rod I 2 is installed.Wherein, the lower end of the cannulated threaded drilling rod I 2 is connected with shoe 1, upper end with
Rig rotation driving section connects.
3) cannulated threaded drilling rod I 2 and shoe 1 are pierced into underground using the rotary driving force and vertical pressure of rig.
4) when hollow threaded drillpipe I 2 wholly or largely pierces underground, and the depth of construction drill not yet reaches design
After during screw rod pile length, the upper end of dismounting cannulated threaded drilling rod I 2 and the connection of rig rotation driving section.And use annular stirrup 4
A section cannulated threaded drilling rod II 3 is linked together with piercing the cannulated threaded drilling rod I 2 of underground with pin 5.Wherein, in described
The lower end of empty threaded drillpipe II 3 is connected with the upper end of cannulated threaded drilling rod I 2, and upper end is connected with rig rotation driving section.
5) the cannulated threaded drilling rod II 3 connected, cannulated threaded drilling rod I 2 and shoe 1 are continued to pierce ground using rig
Under.
6) underground is wholly or largely pierced when the cannulated threaded drilling rod II 3 being connected with cannulated threaded drilling rod I 2, and
After when the depth of construction drill not yet reaches the length of design screw rod pile, the upper end of dismounting cannulated threaded drilling rod II 3 rotates with rig
The connection of drive part.And by another section cannulated threaded drilling rod II 3 and had been drilled into using annular stirrup 4 and pin 5 in underground
Empty threaded drillpipe II 3 links together.Wherein, the lower end for the cannulated threaded drilling rod II 3 newly installed is with having been drilled into the hollow of underground
The upper end connection of threaded drillpipe II 3, upper end is connected with rig rotation driving section.
7) repeat step 5) and step 6), until the length of depth >=design screw rod pile of construction drill.Now, bored
The inner chamber of the cannulated threaded drilling rod I 2 and cannulated threaded drilling rod II 3 that enter underground collectively constitutes a vertical cavity.
8) upper end of top cannulated threaded drilling rod II 3 and the connection of rig rotation driving section are dismantled.It is described in step 7)
Reinforcing bar or steel reinforcement cage, and perfusion mortar or concrete are installed in vertical cavity.
9) rotation driving section of the upper end of top cannulated threaded drilling rod II 3 and rig is reconnected, reversely rotated
Drill bit is lifted, using the reverse rotation driving force and vertical lifting power of rig until by top cannulated threaded drilling rod II 3 all
It is promoted to ground or is above the ground level.
10) the cannulated threaded drilling rod II 3 for being promoted to ground is removed.Using clamp by the neck of annular stirrup 4 and in
The cannulated threaded drilling rod II 3 that the neck of empty threaded drillpipe II 3 is fixed in drilling, open the upper end of cannulated threaded drilling rod II 3 and rig
The connection of rotation driving section, release the lower end of ground above cannulated threaded drilling rod II 3 and lower section cannulated threaded drilling rod II 3 or in
The connection of the empty upper end of threaded drillpipe I 2, remove ground above cannulated threaded drilling rod II 3.
11) repeat step 9) and step 10), until the cannulated threaded drilling rod II 3 for piercing underground is all removed.
12) cannulated threaded drilling rod I 2 is promoted to ground and removed.
4. the cannulated threaded shape drill bit according to claim 3 suitable for the cast-in-place overlength screw rod pile driving construction of soft foundation
Application method, it is characterised in that：Also there is cleaning drilling tool after step 12) and arrange the correlation step of component.
Claims (4)
- A kind of 1. cannulated threaded shape drill bit suitable for the cast-in-place overlength screw rod pile driving construction of soft foundation, it is characterised in that including：Shoe (1), cannulated threaded drilling rod I (2), some section cannulated threaded drilling rod II (3), some annular stirrups (4) and some pins (5)；The shoe (1) includes boots body (101) and is arranged on the boots point (102) of boots body (101) bottom；The boots body (101) For a cylinder；Sharp (102) the generally cone of the boots；The boots sharp (102) include top surface (1021) and side (1022)；The top surface (1021) and the bottom surface of boots body (101) are affixed；The boots sharp (102) are in top surface (1021) and boots body (101) intersection is provided with annular groove (1023)；Sealing ring (103) is installed in the annular groove (1023)；The top At least two projection (1024) is additionally provided with face (1021)；Helical blade is provided with the side (1022)；The open hollow circular cylinder of the cannulated threaded drilling rod I (2) generally upper and lower side；Described (2) lower end of cannulated threaded drilling rod I It is provided with several grooves (201)；Described (2) upper end of cannulated threaded drilling rod I has external screw thread；The cannulated threaded drilling rod I (2) At least two radial direction through hole I (202) is provided with screw thread；Spiral shell is provided with the outer circle wall of the cannulated threaded drilling rod I (2) Vane piece；The open hollow circular cylinder of the cannulated threaded drilling rod II (3) generally upper and lower side；On the cannulated threaded drilling rod II (3) Lower end is respectively provided with external screw thread；The cannulated threaded drilling rod II (3) is being each provided with least two radial direction through hole II at screw thread at two (301)；Helical blade is provided with the outer circle wall of the cannulated threaded drilling rod II (3)；The annular stirrup (4) is interior with matching with cannulated threaded drilling rod I (2) and cannulated threaded drilling rod II (3) external screw thread Screw thread；The annular stirrup (4) is provided with the radial direction that two rows match with radial direction through hole I (202) and radial direction through hole II (301) and led to Hole III (401)；During work, described (2) lower end of cannulated threaded drilling rod I is connected with shoe (1), upper end and cannulated threaded drilling rod II (3) or brill Machine rotation driving section connects；The lower end of each cannulated threaded drilling rod II (3) and cannulated threaded drilling rod I (2) or adjacent hollow Threaded drillpipe II (3) is connected, and upper end is connected with adjacent hollow threaded drillpipe II (3) or rig rotation driving section；It is described hollow Threaded drillpipe I (2) forms grafting with shoe (1) and coordinated；The lower end that the boots body (101) is inserted into cannulated threaded drilling rod I (2) opens In mouthful；The projection (1024) is fitted together in respective slot (201)；The annular stirrup (4) by cannulated threaded drilling rod II (3) with Adjacent cannulated threaded drilling rod I (2) or cannulated threaded drilling rod II (3) is removably attachable to together；The cannulated threaded drilling rod I (2) or cannulated threaded drilling rod II (3) upper end screw in annular stirrup (4) lower end it is open, adjacent hollow threaded drillpipe II (3) The upper end that lower end screws in annular stirrup (4) is open；The pin (5) sequentially passes through radial direction through hole III (401) and corresponding radial direction Through hole I (202) or radial direction through hole II (301).
- 2. a kind of cannulated threaded shape drill bit suitable for the cast-in-place overlength screw rod pile driving construction of soft foundation according to claim 1, It is characterized in that：The outer wall of the cannulated threaded drilling rod I (2), cannulated threaded drilling rod II (3) and annular stirrup (4) is provided with Symmetrical neck；The symmetrical neck of the cannulated threaded drilling rod I (2) is arranged on below external screw thread；The cannulated threaded drilling rod II (3) Symmetrical neck be arranged on below upper external screw thread.
- It is 3. a kind of on being suitable to making for the cannulated threaded shape drill bit of the cast-in-place overlength screw rod pile driving construction of soft foundation described in claim 1 With method, it is characterised in that comprise the following steps：1) shoe (1) is fixed at stake position；2) cannulated threaded drilling rod I (2) is installed；Wherein, the lower end of the cannulated threaded drilling rod I (2) is connected with shoe (1), upper end It is connected with rig rotation driving section；3) cannulated threaded drilling rod I (2) and shoe (1) are pierced into underground using rig；4) after cannulated threaded drilling rod I (2) is drilled into desired depth, (2) upper end of dismounting cannulated threaded drilling rod I and rig rotation driving Partial connection；And cannulated threaded drilling rod II (3) is saved with piercing the hollow of underground by one using annular stirrup (4) and pin (5) Threaded drillpipe I (2) links together；Wherein, the lower end of the cannulated threaded drilling rod II (3) and cannulated threaded drilling rod I (2) is upper End connection, upper end is connected with rig rotation driving section；5) the cannulated threaded drilling rod II (3) connected, cannulated threaded drilling rod I (2) and shoe (1) are continued to pierce ground using rig Under；6) after cannulated threaded drilling rod II (3) is drilled into desired depth, (3) upper end of dismounting cannulated threaded drilling rod II is driven with rig rotation The connection of dynamic part；And by another section cannulated threaded drilling rod II (3) and have been drilled into underground using annular stirrup (4) and pin (5) Cannulated threaded drilling rod II (3) link together；Wherein, the lower end for the cannulated threaded drilling rod II (3) newly installed is with having been drilled into ground Under cannulated threaded drilling rod II (3) upper end connection, upper end is connected with rig rotation driving section；7) repeat step 5) and step 6), until the length of depth >=design screw rod pile of construction drill；Wherein, have been drilled into ground Under cannulated threaded drilling rod I (2) and the inner chamber of cannulated threaded drilling rod II (3) collectively constitute a vertical cavity；8) (3) upper end of top cannulated threaded drilling rod II and the connection of rig rotation driving section are dismantled；It is described perpendicular in step 7) Reinforcing bar or steel reinforcement cage, and perfusion mortar or concrete are installed into cavity；9) rotation driving section of the upper end of top cannulated threaded drilling rod II (3) and rig is reconnected, reverse rotation carries Drill bit is risen, until top cannulated threaded drilling rod II (3) all is promoted into ground or is above the ground level；10) the cannulated threaded drilling rod II (3) for being promoted to ground is removed；11) repeat step 9) and step 10), until the cannulated threaded drilling rod II (3) for piercing underground is all removed；12) cannulated threaded drilling rod I (2) is promoted to ground and removed.
- 4. the use of the cannulated threaded shape drill bit according to claim 3 suitable for the cast-in-place overlength screw rod pile driving construction of soft foundation Method, it is characterised in that：Also there is cleaning drilling tool after step 12) and arrange the correlation step of component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710593775.8A CN107355188B (en) | 2017-07-20 | 2017-07-20 | A kind of cannulated threaded shape drill bit and its application method suitable for the cast-in-place overlength screw rod pile driving construction of soft foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710593775.8A CN107355188B (en) | 2017-07-20 | 2017-07-20 | A kind of cannulated threaded shape drill bit and its application method suitable for the cast-in-place overlength screw rod pile driving construction of soft foundation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107355188A true CN107355188A (en) | 2017-11-17 |
| CN107355188B CN107355188B (en) | 2019-06-04 |
Family
ID=60285410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710593775.8A Active CN107355188B (en) | 2017-07-20 | 2017-07-20 | A kind of cannulated threaded shape drill bit and its application method suitable for the cast-in-place overlength screw rod pile driving construction of soft foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107355188B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108018856A (en) * | 2017-11-30 | 2018-05-11 | 中国冶集团有限公司 | A kind of Novel spiral pile-driving machine and its construction method |
| CN109441366A (en) * | 2018-12-27 | 2019-03-08 | 河南理工大学 | It is a kind of can bidirectional rotation anchor cable drill-steel set |
| CN111455991A (en) * | 2020-04-20 | 2020-07-28 | 华东交通大学 | Assembled spiral pile foundation and construction method thereof |
| CN111997045A (en) * | 2020-07-11 | 2020-11-27 | 中铁二十四局集团江苏工程有限公司 | Combined screw pile and using method thereof |
| CN115075257A (en) * | 2022-07-13 | 2022-09-20 | 中交二公局东萌工程有限公司 | Pile beam vertical anchor for supporting deep foundation pit of complex environment building and construction method thereof |
| US11454423B1 (en) * | 2021-03-31 | 2022-09-27 | Northern States Metals Company | Ground screw adaptor for solar panel support structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200981998Y (en) * | 2006-05-11 | 2007-11-28 | 黑龙江博施建筑工程技术开发有限公司 | Long spiral drill screw pile construction device |
| CN202176266U (en) * | 2011-07-07 | 2012-03-28 | 郑州市高强机电有限公司 | Dual-guide pillar taper shank automatically-opened and closed drill point door for drill bit of long screw drilling machine |
| CN202416330U (en) * | 2011-12-30 | 2012-09-05 | 安徽华艺园林景观生态建设有限公司 | High-efficiency integrated anchor rod |
| CN204530674U (en) * | 2015-01-30 | 2015-08-05 | 刘淼 | The one formula forward that fetches earth becomes twist bit lamps structure and varying pitch screw pile body |
| CN205445504U (en) * | 2016-03-28 | 2016-08-10 | 王毅 | Novel geology spiral drill rod |
| CN205778551U (en) * | 2016-05-27 | 2016-12-07 | 刘录怀 | A kind of Squeezing Soil Pile pile-forming drilling tool |
-
2017
- 2017-07-20 CN CN201710593775.8A patent/CN107355188B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200981998Y (en) * | 2006-05-11 | 2007-11-28 | 黑龙江博施建筑工程技术开发有限公司 | Long spiral drill screw pile construction device |
| CN202176266U (en) * | 2011-07-07 | 2012-03-28 | 郑州市高强机电有限公司 | Dual-guide pillar taper shank automatically-opened and closed drill point door for drill bit of long screw drilling machine |
| CN202416330U (en) * | 2011-12-30 | 2012-09-05 | 安徽华艺园林景观生态建设有限公司 | High-efficiency integrated anchor rod |
| CN204530674U (en) * | 2015-01-30 | 2015-08-05 | 刘淼 | The one formula forward that fetches earth becomes twist bit lamps structure and varying pitch screw pile body |
| CN205445504U (en) * | 2016-03-28 | 2016-08-10 | 王毅 | Novel geology spiral drill rod |
| CN205778551U (en) * | 2016-05-27 | 2016-12-07 | 刘录怀 | A kind of Squeezing Soil Pile pile-forming drilling tool |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108018856A (en) * | 2017-11-30 | 2018-05-11 | 中国冶集团有限公司 | A kind of Novel spiral pile-driving machine and its construction method |
| CN109441366A (en) * | 2018-12-27 | 2019-03-08 | 河南理工大学 | It is a kind of can bidirectional rotation anchor cable drill-steel set |
| CN109441366B (en) * | 2018-12-27 | 2023-09-26 | 河南理工大学 | Anchor cable complete drilling tool capable of rotating bidirectionally |
| CN111455991A (en) * | 2020-04-20 | 2020-07-28 | 华东交通大学 | Assembled spiral pile foundation and construction method thereof |
| CN111455991B (en) * | 2020-04-20 | 2021-06-01 | 华东交通大学 | Assembled spiral pile foundation and construction method thereof |
| CN111997045A (en) * | 2020-07-11 | 2020-11-27 | 中铁二十四局集团江苏工程有限公司 | Combined screw pile and using method thereof |
| CN111997045B (en) * | 2020-07-11 | 2021-09-21 | 中铁二十四局集团江苏工程有限公司 | Combined screw pile and using method thereof |
| US20230012937A1 (en) * | 2021-03-31 | 2023-01-19 | Northern States Metals Corporation | Ground screw adaptor for solar panel support structure |
| US20220316763A1 (en) * | 2021-03-31 | 2022-10-06 | Northern States Metals Corporation | Ground screw adaptor for solar panel support structure |
| US11454423B1 (en) * | 2021-03-31 | 2022-09-27 | Northern States Metals Company | Ground screw adaptor for solar panel support structure |
| US20230012809A1 (en) * | 2021-03-31 | 2023-01-19 | Northern States Metals Corporation | Ground screw adaptor for solar panel support structure |
| US11879668B2 (en) * | 2021-03-31 | 2024-01-23 | Flexrack By Qcells Llc | Ground screw adaptor for solar panel support structure |
| CN115075257B (en) * | 2022-07-13 | 2023-09-08 | 中交二公局东萌工程有限公司 | Pile beam vertical anchor for deep foundation pit support of complex environment building and construction method thereof |
| CN115075257A (en) * | 2022-07-13 | 2022-09-20 | 中交二公局东萌工程有限公司 | Pile beam vertical anchor for supporting deep foundation pit of complex environment building and construction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107355188B (en) | 2019-06-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107355188B (en) | A kind of cannulated threaded shape drill bit and its application method suitable for the cast-in-place overlength screw rod pile driving construction of soft foundation | |
| CN207296871U (en) | The structure-improved of full-sleeve twist bit | |
| CN110374505A (en) | A kind of drilling machine and bored pile construction method | |
| CN205100880U (en) | Crowded counterboring machine is dug soon to horizontal application of force formula | |
| CN102619224B (en) | Construction method and drilling tool for variable cross-section bored cast-in-place pile (rock bolt) | |
| CN106192996B (en) | A kind of T shape drilling tools of construction method and T shapes the cast pile driving construction of T shapes stake | |
| CN203669749U (en) | Concentric simultaneous casing drilling tool | |
| CN207122284U (en) | Expand ground drilling tool | |
| CN205117214U (en) | Rotary digging, jostling and enlarging drill | |
| CN108301769B (en) | A kind of RW type horizontal well construction method and its drilling tool used | |
| CN202165049U (en) | Tube-inserting well cementation device | |
| CN205100890U (en) | Bore sword formula and dig crowded integrative drilling rod of row's of filling sediment that expands soon | |
| CN103089170A (en) | Extensible drill pipe of long spiral drilling pressure filling pile machine and construction method thereof | |
| CN206015668U (en) | A kind of T-shaped pours into a mould the T-shaped drilling tool of pile driving construction | |
| CN208023560U (en) | The dismountable screw pile machine of ultra-deep pile foundation drilling rod | |
| CN113669005B (en) | Reducing type bored concrete pile device | |
| CN106639876B (en) | Radiating aperture guide digging equipment and technique | |
| CN108374411A (en) | The dismountable screw pile machine of ultra-deep pile foundation drilling rod and the construction method of ultra-deep stake | |
| CN205100889U (en) | Dig crowded integrative drilling rod of row's of pouring into sediment that expands soon when fraction | |
| CN101260791B (en) | Raising-out type ball seat | |
| CN106836228A (en) | Filling type stake hollow drill | |
| CN210530745U (en) | Combined drilling bottom-expanding pile-planting system | |
| CN207988968U (en) | The dismountable threaded drillpipe of ultra-deep pile foundation | |
| RU2672699C1 (en) | Method for strengthening shallow foundations | |
| CN207714313U (en) | A kind of precast concrete drill bit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220921 Address after: 510030 unit F, 14th, 15th, 16th and 17th floors, West building, 338 Huanshi East Road, Yuexiu District, Guangzhou, Guangdong Patentee after: GUANGZHOU FIRST MUNICIPAL ENGINEERING Co.,Ltd. Patentee after: CHONGQING JIAOTONG University Address before: 400074 No. 66, Xuefu Avenue, Nan'an District, Chongqing Patentee before: CHONGQING JIAOTONG University |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230615 Address after: 510030 unit F, 14th, 15th, 16th and 17th floors, West building, 338 Huanshi East Road, Yuexiu District, Guangzhou, Guangdong Patentee after: GUANGZHOU FIRST MUNICIPAL ENGINEERING Co.,Ltd. Address before: 510030 unit F, 14th, 15th, 16th and 17th floors, West building, 338 Huanshi East Road, Yuexiu District, Guangzhou, Guangdong Patentee before: GUANGZHOU FIRST MUNICIPAL ENGINEERING Co.,Ltd. Patentee before: CHONGQING JIAOTONG University |