CN219952060U - Anti-pulling force compensation structure for cut-off anti-pulling pile of undercut tunnel - Google Patents
Anti-pulling force compensation structure for cut-off anti-pulling pile of undercut tunnel Download PDFInfo
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- CN219952060U CN219952060U CN202321106004.9U CN202321106004U CN219952060U CN 219952060 U CN219952060 U CN 219952060U CN 202321106004 U CN202321106004 U CN 202321106004U CN 219952060 U CN219952060 U CN 219952060U
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- resistant
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 55
- 239000010959 steel Substances 0.000 claims abstract description 55
- 238000007667 floating Methods 0.000 claims abstract description 49
- 238000003466 welding Methods 0.000 claims abstract description 7
- 238000005260 corrosion Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000009435 building construction Methods 0.000 abstract description 2
- 239000003973 paint Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011378 shotcrete Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a pulling-resistant force compensation structure of a cut-off pulling-resistant pile of a subsurface tunnel, which belongs to the technical field of building construction and comprises a floating-resistant steel plate, a pulling-resistant pile and pulling-resistant pile steel bars, wherein the floating-resistant steel plate is circular and is formed by welding two semicircular steel plates, the pulling-resistant pile is welded with the floating-resistant steel plate through the pulling-resistant pile steel bars, the surface of the floating-resistant steel plate is coated with anticorrosive paint, and the floating-resistant steel plate is positioned above a tunnel primary support and is not connected with the tunnel primary support. When a new tunnel is penetrated under the existing subway station anti-floating pile, a longer pile body is required to be cut off, grouting is performed or other measures are taken, and the anti-floating design requirement cannot be met, the utility model can provide enough anti-pulling force for the cut-off anti-floating pile, and provide safety guarantee for the stress of the existing subway station.
Description
Technical Field
The utility model belongs to the technical field of building construction, and particularly relates to a pull-out resistance compensation structure of a cut-off pull-out resistance pile of a undercut tunnel.
Background
When the anti-floating pile of the existing subway station is penetrated downwards in the tunnel construction process, the anti-floating stress of the subway station can be changed, the common practice is to grouting the periphery of the existing pile foundation, increase the side friction resistance of the existing pile foundation, and further increase the pulling resistance of the pile foundation, but if the newly-built tunnel is penetrated downwards to cut the pile foundation longer, the lost pulling resistance is more, the pulling resistance after grouting still cannot meet the requirements, and if other related measures are not taken, the anti-floating design of the whole structure can be influenced.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a pulling resistance compensation structure of a cut-off pulling-resistant pile of a subsurface tunnel, which aims at solving the problem that the cut-off pulling-resistant pile cannot provide enough pulling resistance after a newly built tunnel damages the existing pulling-resistant pile.
The utility model realizes the aim through the following technical scheme:
the utility model provides a undercut tunnel cuts anti-floating pile resistance to plucking force compensation structure, includes anti-floating steel sheet, anti-floating pile and anti-floating pile reinforcing bar, anti-floating steel sheet is the ring shape, anti-floating pile pass through anti-floating pile reinforcing bar with anti-floating steel sheet is connected.
Further, the anti-floating steel plate consists of two semicircular steel plates.
Further, the surface of the anti-floating steel plate is coated with an anti-corrosion coating.
Further, the anti-floating steel plate is positioned above the tunnel primary support and is not connected with the tunnel primary support.
Furthermore, the connection mode of the uplift pile steel bars and the anti-floating steel plates is welding.
Furthermore, the connection mode between the semicircular steel plates is welding.
Compared with the prior art, the utility model has the following beneficial effects:
according to the pulling resistance compensation structure for the cut-off pulling-resistant pile of the underground tunnel, the pulling-resistant steel plate is additionally arranged on the cut-off pulling-resistant pile of the underground tunnel, so that enough pulling resistance is provided for the residual pulling-resistant pile, and safety guarantee is provided for stress of the existing subway station.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.
The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the utility model, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present utility model, should fall within the ambit of the technical disclosure.
FIG. 1 is a cross-sectional view of an embodiment of the present utility model;
FIG. 2 is a top view of an embodiment of the present utility model;
the components in the figures are labeled as follows:
1-anti-pulling pile, 2-truncated anti-pulling pile, 3-anti-floating steel plate and 4-anti-pulling pile steel bar.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 1 to 2, the utility model discloses an embodiment of a pull-out resistance compensation structure of a cut-off anti-pulling pile of a undercut tunnel, which comprises a pull-out resistance pile 1, an anti-floating steel plate 3 and a pull-out resistance pile steel bar 4, wherein the anti-floating steel plate 3 is in a circular shape, and the pull-out resistance pile 1 is connected with the anti-floating steel plate 3 through the pull-out resistance pile steel bar 4.
Further, the anti-floating steel plate 3 is composed of two semicircular steel plates.
Furthermore, the surface of the anti-floating steel plate 3 is coated with an anti-corrosion coating.
Further, the anti-floating steel plate 3 is positioned above the tunnel primary support and is not connected with the tunnel primary support.
Furthermore, the connection mode of the uplift pile steel bars 4 and the anti-floating steel plates 3 is welding.
Furthermore, the connection mode between the semicircular steel plates is welding.
The working process of the embodiment of the pulling-resistant compensation structure of the cut-off pulling-resistant pile for the undercut tunnel is described below with reference to the accompanying drawings:
when a newly-built underground tunnel cuts off an existing subway station anti-pulling pile 1, the anti-pulling pile 1 loses the capacity of providing the anti-pulling force because of the cut-off anti-pulling pile 2, and the anti-pulling force of the anti-pulling pile needs to be increased by additionally arranging an anti-floating steel plate 3. The specific implementation is as follows: when a subsurface tunnel is excavated to the position 0.5m in front of the uplift pile 1, a small pilot tunnel is adopted to excavate to the position half of the uplift pile 1, half of the uplift pile 1 is firstly chiseled, then the uplift pile steel bars 4 of the chiseled part are welded with the bottom surface of a half circular steel plate, primary support in the range is applied, after the primary support is sealed, the small pilot tunnel is continuously adopted to excavate to the position 0.5m in front of the uplift pile 1, the residual uplift pile 1 is chiseled, the residual uplift pile steel bars 4 are welded with the bottom surface of another half circular steel plate, two half circular steel plates are welded into a whole anti-floating steel plate 3, and then the residual primary support is sealed, so that the connection between the anti-floating steel plate 3 and the uplift pile 1 is completed. The upper and lower bottom surfaces and the side surfaces of the anti-floating steel plate 3 are coated with anti-corrosion paint, and meanwhile, the anti-seepage grade sprayed concrete is adopted for spraying within the range of the anti-floating steel plate 3.
It should be noted that, in the description of the present utility model, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, it should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.
Claims (6)
1. The utility model provides a undercut tunnel cuts anti-floating pile resistance compensation structure which characterized in that: the anti-floating pile comprises an anti-floating steel plate (3), an anti-floating pile (1) and an anti-floating pile steel bar (4), wherein the anti-floating steel plate (3) is in a circular shape, and the anti-floating pile (1) is connected with the anti-floating steel plate (3) through the anti-floating pile steel bar (4).
2. The pull-out resistance compensation structure of a cut-off uplift pile of a undercut tunnel according to claim 1, wherein: the anti-floating steel plate (3) consists of two semicircular steel plates.
3. The pull-out resistance compensation structure of a cut-off uplift pile of a undercut tunnel according to claim 1, wherein: the surface of the anti-floating steel plate (3) is coated with an anti-corrosion coating.
4. The pull-out resistance compensation structure of a cut-off uplift pile of a undercut tunnel according to claim 1, wherein: the anti-floating steel plate (3) is positioned above the tunnel primary support and is not connected with the tunnel primary support.
5. The pull-out resistance compensation structure of a cut-off uplift pile of a undercut tunnel according to claim 1, wherein: and the connection mode of the uplift pile steel bar (4) and the anti-floating steel plate (3) is welding.
6. The pull-out resistance compensation structure of a cut-off uplift pile of a undercut tunnel according to claim 2, wherein: the connection mode between the semicircular steel plates is welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321106004.9U CN219952060U (en) | 2023-05-10 | 2023-05-10 | Anti-pulling force compensation structure for cut-off anti-pulling pile of undercut tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321106004.9U CN219952060U (en) | 2023-05-10 | 2023-05-10 | Anti-pulling force compensation structure for cut-off anti-pulling pile of undercut tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219952060U true CN219952060U (en) | 2023-11-03 |
Family
ID=88545788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321106004.9U Active CN219952060U (en) | 2023-05-10 | 2023-05-10 | Anti-pulling force compensation structure for cut-off anti-pulling pile of undercut tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219952060U (en) |
-
2023
- 2023-05-10 CN CN202321106004.9U patent/CN219952060U/en active Active
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