CN220580039U - Underwater bridge approach bearing platform cofferdam - Google Patents
Underwater bridge approach bearing platform cofferdam Download PDFInfo
- Publication number
- CN220580039U CN220580039U CN202321860761.5U CN202321860761U CN220580039U CN 220580039 U CN220580039 U CN 220580039U CN 202321860761 U CN202321860761 U CN 202321860761U CN 220580039 U CN220580039 U CN 220580039U
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- China
- Prior art keywords
- inner support
- steel sheet
- sheet pile
- fixed
- ring beam
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 49
- 239000010959 steel Substances 0.000 claims abstract description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 abstract description 12
- 238000007789 sealing Methods 0.000 abstract description 6
- 230000000630 rising effect Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Abstract
The utility model discloses a cofferdam of an approach bridge bearing platform in water, which comprises a plurality of steel pile casings driven into a riverbed, a bearing platform, a plurality of steel sheet piles, a first inner supporting structure, a second inner supporting structure and a third inner supporting structure, wherein the bearing platform is paved above the steel pile casings, is a bottom sealing concrete layer, is arranged above the bottom sealing concrete layer, is equidistantly distributed around the side of the bottom sealing concrete layer, and is driven into the riverbed at the lower end; according to the utility model, the first inner support structure, the second inner support structure and the third inner support structure are matched with the steel sheet pile for assembly, so that the safety risk of installation of the inner support of the steel sheet pile in tide rising can be reduced, the installation quality of the inner support of the steel sheet pile is improved, and the installation precision of the inner support under water is effectively ensured.
Description
Technical Field
The utility model particularly relates to a cofferdam for an underwater bridge approach bearing platform.
Background
At present, a steel sheet pile cofferdam is required to be arranged during construction of a surge region bearing platform. For some low pile caps, the steel sheet pile cofferdam is provided with a plurality of internal supports, and because the internal supports of the traditional steel sheet pile cofferdam are put down by adopting a large number of manual chain blocks, the time and effort are consumed, the efficacy is low, the lowering synchronism is poor, and the internal support positions can not be intuitively measured during tide rising, so that the installation precision is low, and the potential safety hazard of water operation is high.
Disclosure of Invention
In view of the above, the utility model aims to provide the underwater bridge approach bearing platform cofferdam, which can improve the installation quality of the inner support of the steel sheet pile and effectively ensure the installation precision of the inner support under water.
In order to solve the problems, the utility model adopts the following technology and method:
the utility model provides an aquatic approach bridge cushion cap cofferdam, includes a plurality of steel pile casings of driving into the riverbed, lays and is the back cover concrete layer in steel pile casing top, places the cushion cap in back cover concrete layer top, around the avris equidistance of back cover concrete layer distribution, and a plurality of steel sheet piles in the lower extreme drives into the riverbed to and with steel sheet pile fixed mounting, and from last first interior bearing structure, second interior bearing structure and the third interior bearing structure that set gradually down.
Preferably, the steel casings are uniformly distributed.
Preferably, the first inner support structure comprises a first inner support, a first ring beam which is welded and fixed with the first inner support and is abutted against the steel sheet pile, and an outer ring beam which is welded outside the steel sheet pile and corresponds to the first ring beam in position, and a pull rod which penetrates through the steel sheet pile, one end of the pull rod is fixed with the first ring beam through a nut, and the other end of the pull rod is fixed with the outer ring beam through the nut.
Further, the two ends of the pull rod sequentially penetrate through the first ring beam, the steel sheet pile and the outer ring beam, and are fixedly installed through nuts.
Preferably, the second inner support structure comprises a second inner support, and a second ring beam with one end welded and fixed with the second inner support and the other end welded and fixed with the steel sheet pile.
Preferably, the third inner support structure comprises a third inner support, and a third ring beam with one end welded and fixed with the third inner support and the other end welded and fixed with the steel sheet pile.
The utility model has the beneficial effects that: according to the utility model, the first inner support structure, the second inner support structure and the third inner support structure are matched with the steel sheet pile for assembly, so that the safety risk of installation of the inner support of the steel sheet pile in tide rising can be reduced, the installation quality of the inner support of the steel sheet pile is improved, and the installation precision of the inner support under water is effectively ensured.
Drawings
FIG. 1 is a structural diagram of a cofferdam of an underwater bridge-approach bearing platform;
fig. 2 is a top view of fig. 1.
Detailed Description
The following detailed description of the utility model is provided in connection with the accompanying drawings to facilitate understanding and grasping of the technical scheme of the utility model.
In this embodiment, it should be understood that the directions or positional relationships indicated by the terms "middle", "upper", "lower", "top", "right", "left", "upper", "back", "middle", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description of the present utility model, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model.
In this embodiment, if not specifically described, the members may be connected or fixed by bolts, pins, or the like, which are commonly used in the prior art, and therefore, the details thereof will not be described in this embodiment.
An underwater bridge-approach bearing platform cofferdam is shown in figures 1-2. Including driving into a plurality of steel pile casings 1 of riverbed, lay and be bottom sealing concrete layer 2 in steel pile casing 1 top, place the cushion cap 3 of bottom sealing concrete layer 2 top, around the limit side equidistance of bottom sealing concrete layer 2 distribute, and the lower extreme is driven into a plurality of steel sheet piles 4 in the riverbed to and with steel sheet pile 4 fixed mounting, and from last first interior bearing structure 5, second interior bearing structure 6 and the third interior bearing structure 7 that set gradually down. The steel pile casing 1 is evenly distributed, and specifically, can stably support the back cover concrete layer 2. The first inner support structure 5 comprises a first inner support 51, a first ring beam 52 welded and fixed with the first inner support 51 and abutting against the steel sheet pile 4, an outer ring beam 53 welded and installed outside the steel sheet pile 4 and positioned corresponding to the first ring beam 52, and a pull rod 53 penetrating through the steel sheet pile 4, one end of the pull rod being fixed with the first ring beam 52 by a nut, and the other end of the pull rod being fixed with the outer ring beam 53 by a nut. The tie rod 53 is also fixedly installed by passing through the first ring beam 52, the steel sheet pile 4 and the outer ring beam 53 in this order at both ends thereof through nuts. The second inner support structure 6 includes a second in-tunnel support 61, and a second in-tunnel girt 62 having one end welded to the second in-tunnel support 61 and the other end welded to the steel sheet pile 4. The third inner support structure 7 includes a third inner support 71, and a third ring beam 72 having one end welded to the third inner support 71 and the other end welded to the steel sheet pile 4.
The utility model has the beneficial effects that: according to the utility model, the first inner support structure, the second inner support structure and the third inner support structure are matched with the steel sheet pile for assembly, so that the safety risk of installation of the inner support of the steel sheet pile in tide rising can be reduced, the installation quality of the inner support of the steel sheet pile is improved, and the installation precision of the inner support under water is effectively ensured.
The foregoing is merely illustrative of the present utility model, and the scope of the utility model is not limited thereto, but is intended to cover any variations or alternatives not suggested by the applicant's knowledge, and accordingly, the scope of the utility model is to be determined by the appended claims.
Claims (6)
1. The utility model provides a aquatic bridge approach cushion cap cofferdam which characterized in that: including driving into a plurality of steel pile casings of riverbed, lay and be the back cover concrete layer in steel pile casing top, place the cushion cap of back cover concrete layer top, around the limit side equidistance of back cover concrete layer distribute, and the lower extreme is driven into a plurality of steel sheet pile in the riverbed to and with steel sheet pile fixed mounting, and from last first interior bearing structure, second interior bearing structure and the third interior bearing structure that set gradually down.
2. The underwater bridge-approach platform cofferdam of claim 1, wherein: the steel casings are uniformly distributed.
3. The underwater bridge-approach platform cofferdam of claim 1, wherein: the first inner support structure comprises a first inner support, a first ring beam which is welded and fixed with the first inner support and is abutted against the steel sheet pile, an outer ring beam which is welded and installed outside the steel sheet pile and is corresponding to the first ring beam in position, and a pull rod which penetrates through the steel sheet pile, one end of which is fixed with the first ring beam through a nut, and the other end of which is fixed with the outer ring beam through a nut.
4. A water bridge-approach platform cofferdam as in claim 3, wherein: the two ends of the pull rod sequentially penetrate through the first ring beam, the steel sheet pile and the outer ring beam and are fixedly installed through nuts.
5. The underwater bridge-approach platform cofferdam of claim 1, wherein: the second inner supporting structure comprises a second inner support, one end of the second inner support is welded and fixed with the second inner support, and the other end of the second inner support is welded and fixed with the steel sheet pile.
6. The underwater bridge-approach platform cofferdam of claim 1, wherein: the third inner supporting structure comprises a third inner support, one end of which is welded and fixed with the third inner support, and the other end of which is welded and fixed with the steel sheet pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321860761.5U CN220580039U (en) | 2023-07-13 | 2023-07-13 | Underwater bridge approach bearing platform cofferdam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321860761.5U CN220580039U (en) | 2023-07-13 | 2023-07-13 | Underwater bridge approach bearing platform cofferdam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220580039U true CN220580039U (en) | 2024-03-12 |
Family
ID=90111567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321860761.5U Active CN220580039U (en) | 2023-07-13 | 2023-07-13 | Underwater bridge approach bearing platform cofferdam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220580039U (en) |
-
2023
- 2023-07-13 CN CN202321860761.5U patent/CN220580039U/en active Active
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