CN211773577U - Pile head structure of prefabricated tubular pile - Google Patents
Pile head structure of prefabricated tubular pile Download PDFInfo
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- CN211773577U CN211773577U CN201921358172.0U CN201921358172U CN211773577U CN 211773577 U CN211773577 U CN 211773577U CN 201921358172 U CN201921358172 U CN 201921358172U CN 211773577 U CN211773577 U CN 211773577U
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Abstract
The utility model provides a pile head structure of precast tubular pile, including the tubular pile, still include stake point and coupling mechanism, the stake point includes cross steel sheet and the circular supporting steel plate that breaks ground, and cross steel sheet vertical fixation that breaks ground passes through coupling mechanism and tubular pile fixed connection on the circular supporting steel plate that passes through. The utility model has the advantages that: through the ingenious design of coupling mechanism, on being fixed in finished product tubular pile with the stake point, convenient and fast ground reforms into the tubular pile of banding cusp with flat head type tubular pile, and pile head structure is strong adaptability to the tubular pile, and connection quality is good, and the reliability is high.
Description
Technical Field
The utility model relates to a pile foundation engineering technical field, concretely relates to precast tubular pile's pile head structure.
Background
The precast tubular pile has the advantages of high single-pile bearing capacity, high construction speed, high efficiency, strong adaptability, low single-pile bearing capacity, and the like, so that the precast tubular pile is widely applied to construction of various engineering projects.
In the construction of pile foundation engineering, a flat-head type pipe pile or a pipe pile with a tip is selected according to the field soil condition. When the flat-head tubular pile is adopted, if the soil quality of a certain position is hard or the pile head touches large stones, the concrete pile head can not be pushed downwards, and the pile head can be broken due to continuous forced driving, so that the bearing capacity of a single pile is reduced.
When the above conditions are met, a hole guiding machine is generally adopted for guiding holes, or the hole guiding machine is replaced by a tubular pile with a pointed end. And by adopting the method of a hole leading machine, the construction procedures are increased, and the work efficiency is reduced. The tubular pile with the pointed end is changed, the tubular pile with the pointed end needs to be purchased temporarily, the construction period is influenced, and a large amount of flat-head tubular piles in the previous period are wasted.
Disclosure of Invention
The utility model aims at providing a be applied to finished product precast tubular pile, convenient and fast ground reforms transform flat-end type tubular pile into pile head structure of the tubular pile of banding tip.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
the utility model provides a precast tubular pile's pile head structure, includes the tubular pile, still includes stake point and coupling mechanism, and the stake point includes cross steel sheet and the circular supporting steel plate that breaks ground, and cross steel sheet vertical fixation that breaks ground passes through coupling mechanism and tubular pile fixed connection on the circular supporting steel plate that breaks ground.
Further, coupling mechanism includes sleeve, conical head, screw rod and nut, and the sleeve is inserted in the tubular pile, and the welding has the conical head of screw rod to penetrate in the sleeve, and the sleeve sets up the inflation groove in the department of offseting with the conical head, and the screw hole that the corresponding position of circular backup pad was seted up is penetrated to the screw free end and is screwed fixedly through the nut.
Furthermore, the cone head is in a cone shape, four screw rods are welded on the upper table surface of the cone head in the cone shape, and the lower table surface is abutted to the sleeve; four screw holes are uniformly formed in the corresponding positions of the circular supporting steel plate.
Further, the sleeve external diameter is slightly less than the tubular pile internal diameter.
Compared with the prior art, the utility model, have following advantage:
the utility model relates to a precast tubular pile's pile head structure, ingenious design through coupling mechanism is fixed in the pile tip on the finished product tubular pile, convenient and fast ground reforms transform flat-end type tubular pile into the tubular pile of banding tip, and pile head structure is to the strong adaptability of tubular pile, and connection quality is good, and the reliability is high.
Drawings
Fig. 1 is the utility model relates to a structural schematic diagram of the pile head structure of precast tubular pile.
Fig. 2 is a view from below of the pile tip of the pile head structure of the precast tubular pile.
Fig. 3 is the utility model relates to a stake point of precast tubular pile's pile head structure and coupling mechanism's installation schematic diagram.
Detailed Description
Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
As shown in fig. 1, a pile head structure of precast tubular pile, including tubular pile 1, still include stake point and coupling mechanism, the stake point includes cross steel sheet 21 and the circular supporting steel sheet 22 that breaks ground, and cross steel sheet 21 vertical fixation that breaks ground is on circular supporting steel sheet 22, and cross steel sheet 21 is two triangle-shaped steel sheet vertical cross settings, and the pointed end of triangle-shaped steel sheet is as the pointed end of stake point, and circular supporting steel sheet 22 passes through coupling mechanism and tubular pile 1 fixed connection. Coupling mechanism includes sleeve 31, conical head 32, screw rod 33 and nut 34, and sleeve 31 inserts in tubular pile 1, conical head 32 is the round platform type, four screw rods 33 of last mesa welding of round platform type conical head 32, and lower mesa offsets with sleeve 31, and sleeve 31 sets up expansion tank 311 in the department of offsetting with conical head 32. As shown in fig. 2, four screw holes 221 are uniformly formed in corresponding portions of the circular support plate 22, and as shown in fig. 3, the free end of the screw 33 penetrates through the screw hole 221 formed in the corresponding portion of the circular support plate 22 and is fastened and fixed by the nut 34.
The utility model relates to an installation method of pile head structure of precast tubular pile as follows:
(1) inserting a sleeve 31 into the tubular pile 1, and welding conical heads 32 of four screw rods 33 to penetrate the sleeve 31;
(2) butting the round supporting steel plate 22 of the pile tip with the end of the tubular pile 1, and enabling the free end of the screw rod 33 to penetrate through a corresponding screw hole 221 of the round supporting steel plate 22 and be screwed and fixed through a nut 34;
(3) in the process of screwing the nut 34, the screw 33 drives the conical head 32 to abut against the sleeve 31, the free end of the sleeve 31 is stressed and expanded, the expansion groove 311 at the free end of the sleeve 31 is claw-shaped and protrudes outwards, and the outwards protruding part of the sleeve 31 is clamped on the inner wall of the tubular pile 1, so that the pile tip is firmly fixed on the tubular pile 1.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the concept of the present invention, and these improvements and decorations should also be considered as the protection scope of the present invention.
Claims (4)
1. The utility model provides a precast tubular pile's pile head structure, includes the tubular pile, its characterized in that: the pile tip comprises a cross-shaped ground breaking steel plate and a circular supporting steel plate, the cross-shaped ground breaking steel plate is vertically fixed on the circular supporting steel plate, and the circular supporting steel plate is fixedly connected with the tubular pile through the connecting mechanism.
2. The pile head structure of a precast tubular pile according to claim 1, characterized in that: coupling mechanism includes sleeve, conical head, screw rod and nut, and the sleeve is inserted in the tubular pile, and the welding has the conical head of screw rod to penetrate in the sleeve, and the sleeve sets up the inflation groove in the department of offseting with the conical head, and the screw that the corresponding position of circular backup pad was seted up is penetrated to the screw free end and screws fixedly through the nut.
3. The pile head structure of a precast tubular pile according to claim 2, characterized in that: the cone head is in a circular truncated cone shape, four screw rods are welded on the upper table surface of the circular truncated cone head, and the lower table surface is abutted to the sleeve; four screw holes are uniformly formed in the corresponding positions of the circular supporting steel plate.
4. The pile head structure of a precast tubular pile according to claim 2, characterized in that: the outer diameter of the sleeve is slightly smaller than the inner diameter of the tubular pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921358172.0U CN211773577U (en) | 2019-08-21 | 2019-08-21 | Pile head structure of prefabricated tubular pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921358172.0U CN211773577U (en) | 2019-08-21 | 2019-08-21 | Pile head structure of prefabricated tubular pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211773577U true CN211773577U (en) | 2020-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921358172.0U Active CN211773577U (en) | 2019-08-21 | 2019-08-21 | Pile head structure of prefabricated tubular pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211773577U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115387337A (en) * | 2022-08-16 | 2022-11-25 | 浙江大学 | Construction method of prefabricated pipe pile with pile side self-expansion expander |
-
2019
- 2019-08-21 CN CN201921358172.0U patent/CN211773577U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115387337A (en) * | 2022-08-16 | 2022-11-25 | 浙江大学 | Construction method of prefabricated pipe pile with pile side self-expansion expander |
| CN115387337B (en) * | 2022-08-16 | 2024-05-28 | 浙江大学 | Construction method of prefabricated pipe pile with pile side self-expansion expander |
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