CN220888612U - Reserved pile hole structure suitable for reinforcing static pressure anchor pile - Google Patents
Reserved pile hole structure suitable for reinforcing static pressure anchor pile Download PDFInfo
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- CN220888612U CN220888612U CN202322442486.1U CN202322442486U CN220888612U CN 220888612 U CN220888612 U CN 220888612U CN 202322442486 U CN202322442486 U CN 202322442486U CN 220888612 U CN220888612 U CN 220888612U
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- pile
- anchor
- static pressure
- steel bar
- groove
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- 230000003068 static effect Effects 0.000 title claims abstract description 34
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 9
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 23
- 239000010959 steel Substances 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000004873 anchoring Methods 0.000 claims abstract description 12
- 238000010276 construction Methods 0.000 claims abstract description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 11
- 230000002787 reinforcement Effects 0.000 claims description 11
- 230000002706 hydrostatic effect Effects 0.000 claims 1
- 238000003466 welding Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000003487 anti-permeability effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
A reserved pile hole structure suitable for reinforcing a static pressure anchor pile comprises an upper groove, a lower groove, an additional bidirectional steel bar sheet, a circumferential expansion water stop, an embedded anchor rod, a static pressure anchor pile top anchoring steel bar and a static pressure anchor pile; the reserved pile hole is provided with an upper groove and a lower groove on a foundation, the upper groove is large at the upper part and small at the lower part, the slope of the hole is in a set angle with the horizontal angle, the lower groove is small at the upper part and large at the lower part, the slope is also in a set angle with the horizontal angle, and the lower end of the upper groove is connected with the upper end of the lower groove; the upper groove is provided with an annular expansion water stop belt and an additional bidirectional steel bar sheet, the additional bidirectional steel bar net sheet is fixedly connected with a foundation top bar, a pile top anchoring steel bar of the static pressure anchor pile is fixedly connected with the additional bidirectional steel bar net sheet, and embedded anchor rods are arranged on two sides of the reserved pile hole. The utility model has reliable connection and convenient construction, and enhances the impermeability and waterproof capability of the structure.
Description
Technical Field
The utility model relates to the technical field of civil engineering, in particular to a reliable and safe structure of a reserved pile hole of a static pressure anchor pile for civil engineering.
Background
The anchor rod static pressure pile is to implement pile pressing by utilizing the counterforce provided by the anchor rod anchored in the original foundation, and the pile pressing is generally a small-section square pile and is mainly used for reinforcing the foundation of the existing building foundation. The method has the advantages that the used machine tool is simple, the operation is easy, the construction period is not influenced, and the operation can be performed in a narrow space.
The method for reinforcing the existing foundation generally comprises the following steps: the foundation is reinforced by adopting the static pressure anchor pile, the foundation is reinforced by adopting the static pressure anchor pile in the existing engineering, the foundation construction quality can be ensured to a certain extent, but the anchor pile can be pressed or pulled out, the stress is complex, the damage at the interface between the secondary pouring concrete and the original concrete is easy to generate under the long-term action of complex load, and an opening structure which is reliably connected and convenient to construct is required to be reserved in the foundation.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides a reserved pile hole structure suitable for reinforcing a static pressure anchor pile, which can better solve the problem of connection stress between the reinforced anchor pile and a foundation, ensures the exertion of the pulling resistance and the compression resistance bearing capacity of the pile, and is safe and reliable in connection; and simultaneously enhances the impermeability and waterproof capability of the structure.
In order to solve the technical problems, the utility model provides the following technical scheme:
A reserved pile hole structure suitable for reinforcing a static pressure anchor pile comprises an upper groove, a lower groove, an additional bidirectional reinforcing steel bar net piece, a circumferential expansion water stop belt, an embedded anchor rod, a static pressure anchor pile top anchoring steel bar and a static pressure anchor pile;
The reserved pile hole is provided with an upper groove and a lower groove on a foundation, the upper groove is large at the upper part and small at the lower part, the slope of the hole is in a set angle with the horizontal angle, the lower groove is small at the upper part and large at the lower part, the slope is also in a set angle with the horizontal angle, and the lower end of the upper groove is connected with the upper end of the lower groove;
The upper groove is provided with an annular expansion water stop belt and an additional bidirectional steel bar sheet, the additional bidirectional steel bar net sheet is fixedly connected with a foundation top bar, a pile top anchoring steel bar of the static pressure anchor pile is fixedly connected with the additional bidirectional steel bar net sheet, and embedded anchor rods are arranged on two sides of the reserved pile hole.
Further, the embedded anchor rod consists of anchor bars and an anchor rod bottom plate, and the anchor bars are fixed on the anchor rod bottom plate.
Still further, the set angle is 78 °.
Preferably, the additional bidirectional reinforcement meshes are welded with the foundation jacking ribs, and the anchoring reinforcement at the pile top of the static pressure anchor pile is welded with the additional bidirectional reinforcement meshes.
Compared with the prior art, the utility model can better solve the problem of connection stress of the reinforced anchor rod pile and the foundation, ensures the exertion of the pulling resistance and the compression resistance bearing capacity of the pile, has safe and reliable connection, and in addition, the expansion water stop belt and the high-level non-shrinkage expansion concrete pouring enable the new and old concrete surfaces to be more compact, thereby enhancing the anti-seepage and waterproof capabilities of the structure.
Drawings
Fig. 1 is a schematic cross-sectional view of a reserved pile hole structure suitable for reinforcing a static pressure anchor pile, wherein 1 is an upper groove, 2 is a lower groove, 3 is an additional bidirectional reinforcing steel bar net sheet, 4 is a circumferential expansion water stop belt, 5 is a pre-buried anchor rod, 6 is a static pressure anchor pile top anchoring steel bar, 7 is a static pressure anchor pile, and 8 is a foundation top steel bar;
Fig. 2 is a schematic cross-sectional view of an embedded anchor rod, 9 is an anchor bar, and 10 is an anchor rod bottom plate.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
Referring to fig. 1 and 2, a reserved pile hole structure suitable for reinforcement of a static pressure anchor pile comprises an upper groove 1, a lower groove 2, an additional bidirectional reinforcement mesh 3, a circumferential expansion water stop 4, an embedded anchor 5 and the static pressure anchor pile 7.
The reserved pile hole is provided with an upper groove 1 and a lower groove 2 on a foundation, the upper groove 1, the lower groove 2 and a horizontal angle are 78 degrees, the upper groove 1 is provided with a circular expansion water stop belt 4, the upper groove 1 is provided with an additional bidirectional reinforcing steel bar net sheet 3, the additional bidirectional reinforcing steel bar net sheet 3 is welded with a foundation top rib 8, pile top anchoring reinforcing steel bars 6 of a static pressure anchor pile 7 are welded with the additional bidirectional reinforcing steel bar net sheet 3, two sides of the reserved pile hole are provided with pre-buried anchor rods 5, and the pre-buried anchor rods 5 consist of anchor bars 9 and anchor rod bottom plates 10.
The annular expansion water stop 4 of a circle is pre-buried in the upper groove 1, and the expansion water stop 4 can be placed at a proper position according to actual engineering.
And an anchor rod 5 is pre-buried on the reserved pile hole edge, the anchor rod consists of an anchor rib 9 and an anchor rod bottom plate 10, and the anchor rib body is connected with the anchor rod bottom plate by adopting perforation plug welding.
And (5) static pressure is carried out on the static pressure anchor rod 7 pile to the appointed design elevation.
And casting the lower groove 2 by adopting non-shrinkage expansion concrete which is one level higher than the original foundation. And casting the upper groove 1 by adopting non-shrinkage expansion concrete which is one level higher than the original foundation.
The application process of the embodiment of the utility model is as follows:
1. Reserving an upper groove 1, a lower groove 2 and an expansion water stop 4 on the basis;
2. using the pre-buried anchor rod 5 as a support, and adopting a hydraulic press to static pressure the anchor rod pile 7 to a designated design elevation;
3. Adopting non-shrinkage expansion concrete which is one level higher than the original foundation to pour the lower groove 2, uniformly vibrating the concrete, and pouring a second pile sealing material after curing for 3 days;
4. Paving an additional bidirectional reinforcing steel bar net sheet 3, and welding the additional bidirectional reinforcing steel bar net sheet with a foundation top rib 8, wherein the welding length can be 5d, and d is the diameter of a larger connecting reinforcing steel bar;
5. Extending the vertical section of the pile top anchoring steel bar 6 to the position of the additional steel bar net sheet 3, bending a section of horizontal distance, and welding with the additional bidirectional steel bar net sheet 3, wherein the welding length can be 5d, and d is the diameter of a larger connecting steel bar;
6. Pouring the upper groove 1, adopting shrinkage-free expansion concrete which is one level higher than the original foundation, and uniformly vibrating the concrete to seal the hole.
In this embodiment, the upper groove 1 ensures that the static pressure anchor pile 7 is connected with the foundation under the compression-resistant working condition, the lower groove 2 ensures that the static pressure anchor pile 7 is connected with the foundation under the anti-floating working condition, so that the concrete with one groove is always in a compressed state under any working condition, in addition, the welding of the additional bidirectional reinforcing steel mesh 3 and the anchoring steel 6 at the pile top of the static pressure anchor pile also ensures the exertion of the anti-pulling and compression-resistant bearing capacity of the pile, and meanwhile, the water-stop expansion belt 4 and the non-shrinkage expansion concrete which is one level higher than the original foundation improve the anti-permeability and waterproof effects of the interface between new and old concrete.
The above description is merely an implementation of the present utility model, and modifications and substitutions of the technical solutions described in the embodiments will be apparent to those skilled in the art. Any modification, replacement or improvement made within the spirit and principle of the present utility model is within the protection scope of the present utility model.
Claims (4)
1. The reserved pile hole structure is characterized by comprising an upper groove, a lower groove, an additional bidirectional reinforcing steel bar net sheet, a circumferential expansion water stop belt, an embedded anchor rod, a pile top anchoring steel bar of the static pressure anchor rod pile and the static pressure anchor rod pile;
The reserved pile hole is provided with an upper groove and a lower groove on a foundation, the upper groove is large at the upper part and small at the lower part, the slope of the hole is in a set angle with the horizontal angle, the lower groove is small at the upper part and large at the lower part, the slope is also in a set angle with the horizontal angle, and the lower end of the upper groove is connected with the upper end of the lower groove;
The upper groove is provided with an annular expansion water stop belt and an additional bidirectional steel bar sheet, the additional bidirectional steel bar net sheet is fixedly connected with a foundation top bar, a pile top anchoring steel bar of the static pressure anchor pile is fixedly connected with the additional bidirectional steel bar net sheet, and embedded anchor rods are arranged on two sides of the reserved pile hole.
2. A preformed pile hole construction for hydrostatic anchor pile reinforcement as claimed in claim 1, wherein said pre-buried anchor is comprised of an anchor bar and an anchor bar base plate, said anchor bar being secured to the anchor bar base plate.
3. A preformed pile hole construction for static pressure bolting pile reinforcement according to claim 1 or 2, wherein said set angle is 78 °.
4. A preformed pile hole structure suitable for reinforcing a static pressure anchor pile according to claim 1 or 2, wherein the additional bidirectional reinforcement mesh is welded to the foundation top reinforcement, and the static pressure anchor pile top anchoring reinforcement is welded to the additional bidirectional reinforcement mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322442486.1U CN220888612U (en) | 2023-09-08 | 2023-09-08 | Reserved pile hole structure suitable for reinforcing static pressure anchor pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322442486.1U CN220888612U (en) | 2023-09-08 | 2023-09-08 | Reserved pile hole structure suitable for reinforcing static pressure anchor pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220888612U true CN220888612U (en) | 2024-05-03 |
Family
ID=90872053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322442486.1U Active CN220888612U (en) | 2023-09-08 | 2023-09-08 | Reserved pile hole structure suitable for reinforcing static pressure anchor pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220888612U (en) |
-
2023
- 2023-09-08 CN CN202322442486.1U patent/CN220888612U/en active Active
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