CN220768027U - Screw pile construction structure and screw pile - Google Patents
Screw pile construction structure and screw pile Download PDFInfo
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- CN220768027U CN220768027U CN202322041537.XU CN202322041537U CN220768027U CN 220768027 U CN220768027 U CN 220768027U CN 202322041537 U CN202322041537 U CN 202322041537U CN 220768027 U CN220768027 U CN 220768027U
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- grouting
- grouting pipe
- screw pile
- construction structure
- reinforcement cage
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- 238000010276 construction Methods 0.000 title claims abstract description 45
- 230000002787 reinforcement Effects 0.000 claims abstract description 33
- 238000005553 drilling Methods 0.000 claims abstract description 30
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 230000006978 adaptation Effects 0.000 claims abstract description 6
- 239000002002 slurry Substances 0.000 claims description 9
- 239000011440 grout Substances 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 239000002689 soil Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000007569 slipcasting Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a screw pile construction structure and a screw pile, and solves the technical problem of poor bearing capacity stability of the screw pile in the prior art. Screw pile construction structure, including screw drilling, cylindrical drilling, with screw drilling adaptation first steel reinforcement cage and with cylindrical drilling adaptation second steel reinforcement cage, construction structure still includes: the first grouting mechanism comprises a first grouting pipe, the first grouting pipe is inserted into the bottom of the threaded drilling hole, and the first grouting pipe is fixed on the first reinforcement cage; the second grouting mechanism comprises a second grouting pipe, the second grouting pipe is provided with a first grouting outlet facing the side wall of the threaded drilling hole, and the second grouting pipe is fixed on the first reinforcement cage; the third grouting mechanism comprises a third grouting pipe, the third grouting pipe is inserted into the bottom of the cylindrical drilling hole, and the third grouting pipe is fixed on the second reinforcement cage.
Description
Technical Field
The utility model relates to the technical field of screw pile construction, in particular to a screw pile construction structure and a screw pile.
Background
The cast-in-place pile is widely applied to bridge engineering because of the characteristics of large bearing capacity, strong adaptability and the like. The application of the variable cross section cast-in-place pile is increased under the restriction of geological conditions and engineering difficulty. Compared with the traditional cast-in-place pile, the variable cross-section cast-in-place pile has the following advantages: part of the soil (rock) layer can be used as a bearing layer at the variable cross section, so that the bearing capacity of the bearing layer is enhanced; compared with the cast-in-place pile with the same large diameter, the concrete consumption is reduced. However, due to the existence of the variable cross section, the construction of the pile foundation is more complex than that of a common cast-in-place pile, and the construction risk is increased. Therefore, the construction quality of the variable-section pile foundation is particularly important.
The screw pile is a novel variable cross section bored concrete pile, is a combined pile with a cylindrical upper part and a screw thread shape lower part, and has the advantages of high bearing capacity and small sedimentation. However, the stability of the existing screw pile is poor, and the bearing capacity is often affected by the special foundation characteristic reasons such as flowing or expanding action generated under the action of external load after special lands such as soft soil and expansive soil are exposed to water, and although the bearing capacity can be recovered in a subsequent defect recovery mode, the defect recovery cost a great amount of manpower and material resources, and the bearing capacity is difficult to recover to an optimal level.
Chinese patent No. CN207919560U discloses a post grouting cast-in-situ thin-wall pipe pile with a reserved grouting pipeline, and grouting reinforcement is performed on soil bodies at the pile side and the pile bottom in a post grouting manner, so that the bearing capacity stability of the pile is improved. However, due to the special shape and application of the screw pile on the foundation, the grouting reinforcement method directly applied to the screw pile cannot well improve the bearing capacity stability of the screw pile.
Disclosure of Invention
The utility model mainly aims to provide a screw pile construction structure and a screw pile, so as to solve the technical problem of poor bearing capacity stability of the screw pile in the prior art.
In order to achieve the above object, according to a first aspect of the present utility model, there is provided a screw pile construction structure, comprising:
screw pile construction structure, including screw drilling, cylindrical drilling, with screw drilling adaptation first steel reinforcement cage and with cylindrical drilling adaptation second steel reinforcement cage, construction structure still includes: the first grouting mechanism comprises a first grouting pipe, the first grouting pipe is inserted into the bottom of the threaded drilling hole, and the first grouting pipe is fixed on the first reinforcement cage; the second grouting mechanism comprises a second grouting pipe, the second grouting pipe is provided with a first grouting outlet facing the side wall of the threaded drilling hole, and the second grouting pipe is fixed on the first reinforcement cage; the third grouting mechanism comprises a third grouting pipe, the third grouting pipe is inserted into the bottom of the cylindrical drilling hole, and the third grouting pipe is fixed on the second reinforcement cage.
According to the screw pile construction structure, the first grouting mechanism, the second grouting mechanism and the third grouting mechanism are matched, so that slurry is uniformly filled in foundation holes on the whole pile side and the pile bottom of the screw pile, the screw pile is wrapped and supported by the foundation slurry layer which is penetrated into a whole, and the bearing capacity and the stability of the screw pile are obviously improved. Through making first slip casting pipe and three slip casting pipe insert inside the ground, more help the diffusion of thick liquids to help the quick formation of ground thick liquid body layer, thereby show promotion slip casting efficiency and construction effect.
As the further improvement of the screw pile construction structure: the first grouting pipe is bound and fixed on the inner side of the first reinforcement cage; the second grouting pipe is bound and fixed on the outer side of the first reinforcement cage; and the third grouting pipe is fixedly bound on the outer side of the second reinforcement cage.
As the further improvement of the screw pile construction structure: the first grouting mechanism comprises at least three first grouting pipes which are distributed in an equal radian manner; the second grouting mechanism comprises at least three second grouting pipes which are distributed in an equal radian manner; the third grouting mechanism comprises at least three third grouting pipes which are distributed in an equal radian mode.
As the further improvement of the screw pile construction structure: the first grouting pipe and the second grouting pipe are distributed in a staggered mode.
As the further improvement of the screw pile construction structure: the insertion depth of the first grouting pipe is 15-30 cm; the third grouting pipe has an insertion depth of 20-50 cm.
As the further improvement of the screw pile construction structure: the second grouting pipe also has a second grout outlet towards the centre of the threaded bore.
As the further improvement of the screw pile construction structure: the first slurry outlet and the second slurry outlet are at least two groups and are vertically arranged at intervals.
As the further improvement of the screw pile construction structure: the first grouting pipe, the second grouting pipe and the third grouting pipe are steel pipes with the diameter of 50mm and the wall thickness of 2.5 mm.
In order to achieve the above object, according to a second aspect of the present utility model, there is provided a screw pile, comprising:
screw pile, including screw pile construction structure, concreting and injected thick liquids of the above-mentioned first aspect.
Therefore, the screw pile construction structure and the screw pile are simple in structure and high in construction efficiency, not only can the bearing capacity stability be obviously improved, but also higher bearing capacity can be exerted, the technical problem that the bearing capacity stability of the screw pile is poor in the prior art is effectively solved, and the screw pile has extremely strong practicability.
Additional aspects and advantages of the inventive embodiments provided herein will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the inventive embodiments provided herein.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and, together with the description, serve to explain, without undue limitation, the embodiments of the utility model. In the drawings:
fig. 1 is a schematic side view of a screw pile construction structure and a screw pile according to embodiment 1 of the present utility model.
Fig. 2 is a schematic top view of a screw pile construction structure according to embodiment 1 of the present utility model.
Fig. 3 is a schematic side view of a screw pile construction structure and a screw pile according to embodiment 2 of the present utility model.
The relevant marks in the drawings are as follows:
110-screw drilling, 120-cylindrical drilling, 210-first reinforcement cage, 220-second reinforcement cage, 310-first grouting pipe, 320-second grouting pipe, 321-first grout outlet, 322-second grout outlet, 330-third grouting pipe.
Detailed Description
The following provides a clear and complete description of the inventive embodiments provided in this specification in connection with the accompanying drawings. Those skilled in the art will be able to implement the embodiments of the utility model provided herein based on these descriptions. Before describing embodiments of the utility model provided in this specification with reference to the drawings, it should be noted in particular that:
in the embodiments of the utility model provided in the present specification, the technical solutions and technical features provided in the respective sections including the following description may be combined with each other without conflict.
In addition, the embodiments of the utility model provided in the present specification referred to in the following description are generally only some, but not all, embodiments of the utility model provided in the present specification, and therefore, all other embodiments obtained by a person having ordinary skill in the art based on the embodiments of the utility model provided in the present specification without making any creative effort shall fall within the scope of protection of the embodiments of the utility model provided in the present specification.
Terms and units in the examples of the utility model provided in the present specification: the terms "comprising," "including," "having," and any variations thereof, in the description and claims of embodiments of the utility model and in the relevant parts, are intended to cover a non-exclusive inclusion. In addition, other related terms and units in the embodiments of the utility model provided in the present specification can be reasonably interpreted based on the related contents of the embodiments of the utility model provided in the present specification.
Example 1
Fig. 1 is a schematic side view of a screw pile construction structure of the present embodiment. Fig. 2 is a schematic top view of a screw pile construction structure according to the present embodiment.
As shown in fig. 1-2, the screw pile construction structure includes a screw drilling hole 110, a cylindrical drilling hole 120, a first reinforcement cage 210 fitted with the screw drilling hole 110, a second reinforcement cage 220 fitted with the cylindrical drilling hole 120, a first grouting mechanism, a second grouting mechanism, and a third grouting mechanism. The first grouting mechanism comprises a first grouting pipe 310, wherein the first grouting pipe 310 is inserted into the bottom of the threaded drilling 110, and the first grouting pipe 310 is fixed on the first reinforcement cage 210. The second grouting mechanism comprises a second grouting pipe 320, the second grouting pipe 320 is provided with a first grouting outlet 321 facing the middle part of the side wall of the threaded drilling 110, and the second grouting pipe 320 is fixed on the first reinforcement cage 210. The third grouting mechanism comprises a third grouting pipe 330, the third grouting pipe 330 is inserted into the bottom of the cylindrical drilling 120, and the third grouting pipe 330 is fixed on the second reinforcement cage 220.
The first grouting pipe 310 is bound and fixed on the inner side of the first reinforcement cage 210; the second grouting pipe 320 is bound and fixed on the outer side of the first reinforcement cage 210; the third grouting pipe 330 is fixedly bound to the outer side of the second reinforcement cage 220.
The first grouting mechanism comprises three first grouting pipes 310 distributed in an equal radian; the second grouting mechanism comprises three second grouting pipes 320 distributed in an equal radian; the third grouting mechanism comprises four third grouting pipes 330 distributed in an equal radian. The first grouting pipe 310 and the second grouting pipe 320 are distributed in a staggered manner.
The insertion depth of the first grouting pipe 310 is 20cm; the third grouting pipe 330 has an insertion depth of 40cm.
The first grouting pipe 310, the second grouting pipe 320 and the third grouting pipe 330 are steel pipes with the diameter of 50mm and the wall thickness of 2.5 mm.
The screw pile comprises the screw pile construction structure, poured concrete and injected slurry.
Example 2
Fig. 3 is a schematic side view of the screw pile construction structure of the present embodiment.
Compared with example 1, the screw pile construction structure of this example has the following differences: as shown in fig. 3, the second grouting pipe 320 further has a second grout outlet 322 toward the center of the threaded bore 110. The first slurry outlet 321 and the second slurry outlet 322 are at least two groups and are vertically arranged at intervals. Thus, grouting efficiency and grouting effect can be further improved.
The above description has been made of the contents of the embodiments of the utility model provided in the present specification. Those skilled in the art will be able to implement the embodiments of the utility model provided herein based on these descriptions. Based on the foregoing of the inventive embodiments provided herein, all other preferred embodiments and examples, which a person of ordinary skill in the art would obtain without making any inventive effort, shall fall within the scope of the inventive embodiments provided herein.
Claims (9)
1. Screw pile construction structure, including screw drilling (110), cylindrical drilling (120), with first steel reinforcement cage (210) of screw drilling (110) adaptation and with second steel reinforcement cage (220) of cylindrical drilling (120) adaptation, its characterized in that: the construction structure further includes:
the first grouting mechanism comprises a first grouting pipe (310), the first grouting pipe (310) is inserted into the bottom of the threaded drilling hole (110), and the first grouting pipe (310) is fixed on the first reinforcement cage (210);
the second grouting mechanism comprises a second grouting pipe (320), the second grouting pipe (320) is provided with a first grouting outlet (321) facing the side wall of the threaded drilling hole (110), and the second grouting pipe (320) is fixed on the first reinforcement cage (210);
the third grouting mechanism comprises a third grouting pipe (330), the third grouting pipe (330) is inserted into the bottom of the cylindrical drilling hole (120), and the third grouting pipe (330) is fixed on the second reinforcement cage (220).
2. The screw pile construction structure according to claim 1, wherein: the first grouting pipe (310) is bound and fixed on the inner side of the first reinforcement cage (210); the second grouting pipe (320) is bound and fixed on the outer side of the first reinforcement cage (210); and the third grouting pipe (330) is fixedly bound to the outer side of the second reinforcement cage (220).
3. The screw pile construction structure according to claim 1, wherein: the first grouting mechanism comprises at least three first grouting pipes (310) distributed in an equal radian; the second grouting mechanism comprises at least three second grouting pipes (320) distributed in an equal radian; the third grouting mechanism comprises at least three third grouting pipes (330) distributed in an equal radian.
4. A screw pile construction structure according to claim 3, wherein: the first grouting pipe (310) and the second grouting pipe (320) are distributed in a staggered mode.
5. The screw pile construction structure according to claim 1, wherein: the insertion depth of the first grouting pipe (310) is 15-30 cm; the third grouting pipe (330) has an insertion depth of 20-50 cm.
6. The screw pile construction structure according to claim 1, wherein: the second grouting pipe (320) also has a second grout outlet (322) towards the center of the threaded bore (110).
7. The screw pile construction structure according to claim 6, wherein: the first slurry outlet (321) and the second slurry outlet (322) are at least two groups and are vertically arranged at intervals.
8. The screw pile construction structure according to claim 1, wherein: the first grouting pipe (310), the second grouting pipe (320) and the third grouting pipe (330) are steel pipes with the diameter of 50mm and the wall thickness of 2.5 mm.
9. Screw pile, its characterized in that: screw pile construction structure comprising one of claims 1-8, poured concrete and injected grout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322041537.XU CN220768027U (en) | 2023-07-31 | 2023-07-31 | Screw pile construction structure and screw pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322041537.XU CN220768027U (en) | 2023-07-31 | 2023-07-31 | Screw pile construction structure and screw pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220768027U true CN220768027U (en) | 2024-04-12 |
Family
ID=90604652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322041537.XU Active CN220768027U (en) | 2023-07-31 | 2023-07-31 | Screw pile construction structure and screw pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220768027U (en) |
-
2023
- 2023-07-31 CN CN202322041537.XU patent/CN220768027U/en active Active
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