CN205776177U - A kind of earth-squeezing hole-enlarging stake - Google Patents
A kind of earth-squeezing hole-enlarging stake Download PDFInfo
- Publication number
- CN205776177U CN205776177U CN201620499970.5U CN201620499970U CN205776177U CN 205776177 U CN205776177 U CN 205776177U CN 201620499970 U CN201620499970 U CN 201620499970U CN 205776177 U CN205776177 U CN 205776177U
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- pile
- soil compaction
- enlarging
- pile foundation
- earth
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Abstract
This utility model provides a kind of earth-squeezing hole-enlarging stake.Described earth-squeezing hole-enlarging stake includes soil compaction portion and is positioned at the reamer bottom soil compaction portion, described soil compaction portion includes pile foundation and is filled in the concrete-pile body of pile foundation, described pile foundation includes being positioned at the soil compaction layer of its inner peripheral, being formed at the female thread of described soil compaction layer inwall, described concrete-pile body includes the external screw thread being formed at its outer wall, described female thread and described external thread bolt connection.Described earth-squeezing hole-enlarging anchor ear of the present utility model is protected, and discharges without mud, transports outward without dregs, without construction fugitive dust, it is not necessary to deposit soil site, and environment around will not be contaminated；And be applicable to the enlarging of different soil property, the design of this structure is simple, low cost, effective, be suitable to batch production and promote the use of.
Description
[technical field]
This utility model relates to building engineering field, is specifically related to a kind of earth-squeezing hole-enlarging stake.
[background technology]
At present in the foundation engineerings such as building, water conservancy, highway, Double helix extruded and extended pile is the most conventional
Pile foundation form, this construction method includes utilizing bidirectional helix closed extruding-enlarging aiguille to creep into squeezed hole, to
Lower rotary drill squeezed hole can be squeezed in stake holes sidewall by the rotary drill out soil body, then make bidirectional screw
Closed extruding-enlarging aiguille moves upward and again rotates squeezed stake holes, stake holes in rotating up squeezed lifting
The interior slump soil body can be squeezed in stake holes sidewall, promotes simultaneously in upper rotation, starts concrete pump to stake holes
Intrinsic pressure filling piling.The subject matter existed is first to dig out soil rotation to be transported up again to the stake of both sides again
Wall extrudes, and the soil therefore spun out can block the conveying channel that rotating vane is formed, easily produce
Bit bouncing phenomenon.And the earth discharged or mud, add bore forming difficulty and progress.
Along with the increase of building height, foundation pile length is stepped up, and the difficulty of pile foundation construction is the most more come
The biggest.The bearing capacity of the bored concrete pile of existing pile foundation construction is mainly by stake end soil resistance and Pile side soil
Frictional force forms；The enlarged footing of pile foundation uses cement high-pressure mortar spraying to be formed, however current intricately
Use above-mentioned bored concrete pile may meet requirement under the conditions of matter.
Therefore, it is necessary to provide the earth-squeezing hole-enlarging stake used under a kind of complex geological condition.
[utility model content]
The purpose of this utility model is to provide a kind of earth-squeezing hole-enlarging stake.
The technical solution of the utility model is as follows:
A kind of earth-squeezing hole-enlarging stake, including soil compaction portion be positioned at the reamer bottom soil compaction portion, described soil compaction
Portion includes pile foundation and is filled in the concrete-pile body of pile foundation, and described pile foundation includes being positioned at its inner peripheral
Soil compaction layer, being formed at the female thread of described soil compaction layer inwall, described concrete-pile body includes being formed at
The external screw thread of its outer wall, described female thread and described external thread bolt connection；Described reamer includes from described
Extend the pile foundation head of formation bottom pile foundation, be covered in the grout layer of described pile foundation head inwall, be filled in
Concrete pile head in described grout layer.
The beneficial effects of the utility model are:
Described earth-squeezing hole-enlarging anchor ear is protected, and discharges without mud, transports outward without dregs, without construction fugitive dust, is not required to
Soil site to be deposited, environment around will not be contaminated；And it is applicable to the enlarging of different soil property, should
Structure design is simple, low cost, effective, be suitable to batch production and promote the use of.
[accompanying drawing explanation]
Fig. 1 is the sectional view of this utility model earth-squeezing hole-enlarging stake；
Fig. 2 is the structure chart of this utility model drilling tool；
Fig. 3 is the profile of the enlarged footing use state one of drilling tool shown in Fig. 2；
Fig. 4 is the profile of the enlarged footing use state two of drilling tool shown in Fig. 2.
[detailed description of the invention]
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
Referring to Fig. 1, this utility model additionally provides a kind of earth-squeezing hole-enlarging stake 300, described earth-squeezing hole-enlarging
Stake 300 includes soil compaction portion 3 and is positioned at the reamer 4 bottom soil compaction portion 3, and described soil compaction portion 3 includes
Pile foundation 31 and be filled in the concrete-pile body 32 of pile foundation 31.
Described pile foundation 31 includes being positioned at the soil compaction layer 311 of its inner peripheral, being formed at described soil compaction layer 311
The female thread 313 of inwall.
Described concrete-pile body 32 includes the external screw thread 321 being formed at its outer wall, described female thread 313
It is spirally connected with described external screw thread 321.
Described reamer 4 includes extending the pile foundation 41 of formation bottom described pile foundation 31, being covered in
The grout layer 42 of described pile foundation 41 inwall, the concrete-pile being filled in described grout layer 42
43.
In the present embodiment, described concrete-pile body 32 and described concrete pile head 43 one perfusion
Molding.
For the ease of understanding the structure of above-mentioned earth-squeezing hole-enlarging stake 300 embodiment；This utility model provides
A kind of drilling tool 100 completing described earth-squeezing hole-enlarging stake 300, please refer to Fig. 2 to Fig. 4, including tool
The drilling rod 2 of drill bit 21 and the enlarged footing 1 being sheathed on described drill bit 21.
Described enlarged footing 1 includes enlarging tooth 11, inner core 12 and is sheathed on the urceolus 13 of inner core 12, and
Described inner core 12 and described urceolus 13 interval are arranged.
Described inner core 12 includes clamping part 121.
Described urceolus 13 includes limiting section 131 and extending port 133, and described limiting section 131 quantity is two
Individual and interval is formed on the inner peripheral of described urceolus 13, and described clamping part 121 is formed at described inner core
Outer peripheral edge on and be arranged between two described limiting sections 131, described extending port 133 is for running through
State the through hole of urceolus 13.
Described enlarging tooth 11 includes and the connecting portion 111 of described inner core 12 activity and from described connecting portion
111 extend and insert the expansion mouth 112 of described extending port 133.
Described inner core 12 and the hollow cylinder that described urceolus 13 is concentricity axle；Described inner core 12 and institute
State urceolus 13 by described limiting section 131 and described clamping part 121 and at two described limiting sections 131
Between circular arc length in the range of reverse coaxial rotating；Concrete, circle between two described limiting sections 131
The length of arc string is less than the length of described expansion mouth 112.
By rotating against of described inner core 12 and described urceolus 13, described expansion mouth 112 is along described
Extending port 133 direction is stretched out and is shunk.
Described limiting section 131 is formed at same level with described clamping part 121.
Described urceolus 13 is one-body molded；Described inner core 12 is one-body molded.
Also include that hinge 14, described hinge 14 connect described enlarging tooth 11 and described inner core 12.
In the present embodiment, in figure 3, drilling rod drive described inner core 12 rotate counterclockwise, described outside
Cylinder 13 is by up time in the range of the described clamping part 121 circular arc length between two described limiting sections 131
Pin rotates；Described expansion mouth 112 is shunk along described extending port 133 direction.
In the diagram, drilling rod drives described inner core 12 to turn clockwise, and described urceolus 13 is by described
Clamping part 121 rotates in the range of the circular arc length between two described limiting sections 131 counterclockwise；Make
Described expansion mouth 112 shrinks along described extending port 133 direction.
Described drilling rod 2 also includes the body 22 being sequentially connected with, stops circle 23 and borded pile 24, described
Borded pile 24 extends from described drill bit 21 and is formed, described body 22, stop circle 23, borded pile 24
And the concentricity axle of drill bit 21 is arranged, the described internal diameter stopping circle 23 is more than described borded pile 24 with described
Body 2, and it is surrounded on screw thread 241 degree of depth of described borded pile 24 outer wall more than described stop circle 23
The screw thread 231 of outer wall.
Further, the described 231 weeks footpaths of screw thread stopping circle 23 outer walls and described borded pile 241 outer wall
241 weeks footpaths of screw thread identical.This structure ensure that drilling tool 100 piling during, described stop circle
23 structures carry out second time and extrude the hole wall of the stake of the most squeezed one-tenth, stop that formation of pile soil is not screwed out
Direct squeezed pile.
Preferably, the described aspect ratio stopping circle 23 and borded pile 24 is preferably 7:25, actual size
Requirement, the height of described stop circle 23 is 70cm, and the height of described borded pile 24 is 250cm, both
May insure that the stake holes degree of depth of the most squeezed one-tenth meets design requirement, also ensure that borded pile 24 is to the most crowded simultaneously
The hole wall of the stake expanded carries out second time and extrudes, and stops that formation of pile soil is not screwed out direct squeezed pile.
The beneficial effects of the utility model are: described earth-squeezing hole-enlarging anchor ear is protected, and discharge without mud, nothing
Dregs is transported outward, without construction fugitive dust, it is not necessary to deposit soil site, and environment around will not be contaminated；And
And be applicable to the enlarging of different soil property, the design of this structure is simple, low cost, effective, be suitable to batch
Produce and promote the use of.
Above-described is only embodiment of the present utility model, it should be noted here that for this area
Those of ordinary skill for, without departing from this utility model create design on the premise of, it is also possible to do
Go out to improve, but these belong to protection domain of the present utility model.
Claims (2)
1. an earth-squeezing hole-enlarging stake, it is characterised in that include soil compaction portion and be positioned at the expansion bottom soil compaction portion
Hole portion, described soil compaction portion includes pile foundation and is filled in the concrete-pile body of pile foundation, and described pile foundation includes
It is positioned at the soil compaction layer of its inner peripheral, is formed at the female thread of described soil compaction layer inwall, described concrete-pile
Body includes the external screw thread being formed at its outer wall, described female thread and described external thread bolt connection；Described expansion
Hole portion includes extending the pile foundation head of formation bottom described pile foundation, being covered in the water of described pile foundation head inwall
Mud layer, the concrete pile head being filled in described grout layer.
Earth-squeezing hole-enlarging stake the most according to claim 1, it is characterised in that described concrete-pile is originally
Body and described concrete pile head one form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620499970.5U CN205776177U (en) | 2016-05-27 | 2016-05-27 | A kind of earth-squeezing hole-enlarging stake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620499970.5U CN205776177U (en) | 2016-05-27 | 2016-05-27 | A kind of earth-squeezing hole-enlarging stake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205776177U true CN205776177U (en) | 2016-12-07 |
Family
ID=57408614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620499970.5U Active CN205776177U (en) | 2016-05-27 | 2016-05-27 | A kind of earth-squeezing hole-enlarging stake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205776177U (en) |
-
2016
- 2016-05-27 CN CN201620499970.5U patent/CN205776177U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |