CN210368999U - Larsen steel plate hanging box cofferdam device - Google Patents
Larsen steel plate hanging box cofferdam device Download PDFInfo
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- CN210368999U CN210368999U CN201920413034.1U CN201920413034U CN210368999U CN 210368999 U CN210368999 U CN 210368999U CN 201920413034 U CN201920413034 U CN 201920413034U CN 210368999 U CN210368999 U CN 210368999U
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- hanging box
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Abstract
The utility model belongs to the field of deepwater bridge hanging box cofferdams, in particular to a Larsen steel plate hanging box cofferdam device, which comprises side maintenance, bottom maintenance and internal support, wherein the side maintenance is Larsen steel plate piles, the bottoms of the Larsen steel plate piles are welded on the bottom maintenance, and the internal support is supported inside the Larsen steel plate piles; the inner support comprises an annular support matched with the inner shape of the Larsen steel plate pile, the Larsen steel plate pile is formed by connecting a plurality of Larsen steel plates, each Larsen steel plate with an inward opening is connected with the annular support in a welding mode through a stable connecting rod, and each Larsen steel plate with an outward opening is connected with the annular support in a spot welding mode. The utility model provides a among the prior art steel hanging box cofferdam equipment loaded down with trivial details, the slow problem of construction, simple structure, preparation simple to operate, construction are fast moreover, retrieve the turnover rate high, economize with the material, use economy, richen the kind of hanging box cofferdam device simultaneously. The method is suitable for construction of the deep water high pile small and medium-sized bridge bearing platform within 12 m.
Description
Technical Field
The utility model belongs to deep water bridge hanging box cofferdam field, concretely relates to larsen steel sheet hanging box cofferdam device.
Background
At present, in the foundation construction of underwater bridges and wharfs, cofferdams adopted are approximately as follows: the cofferdam comprises a steel sheet pile cofferdam, a locking steel pipe pile cofferdam, a double-wall steel cofferdam, a reinforced concrete cofferdam, a bottomless steel pouring jacket, a bottom-closed steel hanging box cofferdam and the like. The steel suspension box cofferdam has the characteristics of short construction period, no need of sinking into a river bed, small material consumption, economy, reasonability and the like, and is widely applied to foundation construction of deep-water bridges and wharf high-pile bearing platforms. The steel hanging box cofferdam is generally formed by welding a plurality of steel plates and horizontal back ridges in the processing process through enclosing water by bottom sealing concrete on side plates and a bottom plate of the hanging box, and then is welded on the bottom plate, so that the steel hanging box cofferdam is complex in structure, large in welding amount, slow in construction, difficult to remove during recovery, low in recovery rate and high in cost.
SUMMERY OF THE UTILITY MODEL
To the technical problem, an object of the utility model is to provide a Larsen steel sheet hanging box cofferdam device for solve among the prior art steel hanging box cofferdam equipment loaded down with trivial details, the slow problem of construction.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a larsen steel sheet hanging box cofferdam device, includes that the side is maintained, bottom maintenance and inside support, its characterized in that: the side maintenance is Larsen steel sheet piles, the bottoms of the Larsen steel sheet piles are welded on the bottom maintenance, and the internal supports are supported inside the Larsen steel sheet piles; the inner support comprises an annular support matched with the inner shape of the Larsen steel plate pile, the Larsen steel plate pile is formed by connecting a plurality of Larsen steel plates, each Larsen steel plate with an inward opening is connected with the annular support in a welding mode through a stable connecting rod, and each Larsen steel plate with an outward opening is connected with the annular support in a spot welding mode.
Furthermore, a plurality of layers of annular supports are arranged inside the Larsen steel sheet pile.
Further, the Larsen steel sheet pile is maintained to be polygonal, circular or round-ended.
Furthermore, the Larsen steel sheet pile is maintained to be polygonal, the annular support is also polygonal, and reinforcing supports are connected between adjacent edges of the annular support.
Furthermore, the bottom maintenance is provided with a hole matched with the pile foundation, the upper end of the pile foundation penetrates through the hole to be inserted into the bottom of the Larsen steel plate hanging box cofferdam device, and the pile foundation is fixed through bottom sealing concrete.
Further, a bearing platform is constructed on the bottom sealing concrete, and the bearing platform is located in the middle of the bottom sealing concrete.
Further, composite water stop rubber and painting water stop rubber are installed at the lock catch of the Larsen steel sheet pile.
The utility model has the advantages that: the utility model provides an among the prior art steel hanging box cofferdam structure complicated, the volume of welding is big, the construction is slow, recycle rate is low, problem with high costs. And the utility model discloses simple structure, preparation simple to operate, construction are fast, retrieve the turnover rate high, economize with the material, use economy, richen the kind of hanging box cofferdam device simultaneously. The method is suitable for construction of the deep water high pile small and medium-sized bridge bearing platform within 12 m.
Drawings
Fig. 1 is a schematic top view of the present invention.
FIG. 2 is a schematic sectional view taken along line A-A in FIG. 1.
Fig. 3 is an enlarged view of part B of fig. 1.
In the figure: 1. larsen steel sheet piles; 2. bottom maintenance; 3. an annular support; 4. reinforcing and supporting; 5. sealing bottom concrete; 6. a bearing platform; 7. a bridge pier; 8. a pile foundation; 9. a stable connecting rod; 10. a water collection box; 11. larsen steel plate.
Detailed Description
For better understanding of the present invention, the technical solution of the present invention will be further described below with reference to the following embodiments and accompanying drawings.
As shown in fig. 1, 2 and 3, the larsen steel plate hanging box cofferdam device comprises a side maintenance part, a bottom maintenance part 2 and an internal support, wherein the side maintenance part is a larsen steel plate pile 1, the bottom of the larsen steel plate pile 1 is welded on the bottom maintenance part 2, and the internal support is supported inside the larsen steel plate pile 1 for effective connection and stability; the inside support includes and supports 3 with 1 inside shape assorted annular of larsen steel sheet pile, larsen steel sheet pile 1 is formed by connecting a plurality of larsen steel sheets, and every opening larsen steel sheet 11 inwards supports 3 welded connection (the firm connecting rod 9 is located larsen steel sheet 11 opening) through firm connecting rod 9 and annular, and every opening larsen steel sheet 11 outwards supports 3 spot welding with the annular and is connected.
The Larsen steel plate pile comprises Larsen steel plate piles 1 and is characterized in that a plurality of layers (preferably three layers) of annular supports 3 are arranged inside the Larsen steel plate piles 1, the Larsen steel plate piles 1 are maintained to be polygonal, circular or round-end-shaped (not limited to the shape shown in figure 1 and determined according to specific requirements), the Larsen steel plate piles 1 are maintained to be polygonal, the annular supports 3 are also polygonal, and reinforcing supports 4 are connected between adjacent edges of the annular supports 3. The annular support 3 and the reinforcing support 4 are made of I-shaped steel.
And composite water-stop rubber and water-stop glue are arranged in the Larsen steel plate pile lock catch.
The bottom maintenance device is characterized in that a hole matched with the pile foundation 8 is formed in the bottom maintenance device 2, the upper end of the pile foundation 8 penetrates through the hole to be inserted into the bottom of the Larsen steel plate hanging box cofferdam device, and the pile foundation is fixed through bottom sealing concrete 5. And a bearing platform 6 is constructed on the bottom sealing concrete 5, and the bearing platform 6 is positioned in the middle of the bottom sealing concrete 5.
The utility model discloses a use and principle: firstly, accurately positioning the bottom maintenance 2 at a plane position, and then temporarily fixing the bottom maintenance 2 on a steel casing of a pile foundation 8; the Larsen steel plate pile 1 is welded and installed on the bottom maintenance 2, the composite water stop rubber is installed in the lock catch of the Larsen steel plate pile 1, the bottom of the Larsen steel plate 11 is only welded on the bottom maintenance 2, the welding amount is small, and the Larsen steel plate pile 1 is respectively disassembled and assembled to be beneficial to recovery; then installing a stable connecting rod 9 and an annular support 3; then the water collecting box 10 is installed; (before the Larsen steel plate hanging box cofferdam device is put down, coating water stop glue on the outer side of each lock catch of the Larsen steel plate pile respectively), then putting the Larsen steel plate hanging box cofferdam device to a designed elevation, pouring bottom sealing concrete 5 (before concrete is poured at the position of a water collecting box 10, the inside is filled with sand, the diameter of the water collecting box 10 is 40cm multiplied by 80cm, a plastic bucket is covered, when a bearing platform is constructed, the sand of the water collecting box 10 is taken out, and the water seepage in the cofferdam is drained as a water collecting pit); and finally, constructing a bearing platform 6 on the bottom sealing concrete 5, and then constructing a pier 7 after the construction of the bearing platform 6 is finished.
The above description is only an example of the present invention, and certainly, the scope of the present invention should not be limited thereto, and therefore, the present invention is not limited to the above description.
Claims (7)
1. The utility model provides a larsen steel sheet hanging box cofferdam device, includes that the side is maintained, bottom is maintained (2) and inside supports, its characterized in that: the side maintenance is a Larsen steel plate pile (1), the bottom of the Larsen steel plate pile (1) is welded on the bottom maintenance (2), and the internal support is supported inside the Larsen steel plate pile (1); the inner support comprises an annular support (3) matched with the inner shape of the Larsen steel plate pile (1), the Larsen steel plate pile (1) is formed by connecting a plurality of Larsen steel plates, each Larsen steel plate (11) with an inward opening is connected with the annular support (3) in a welding mode through a stabilizing connecting rod (9), and each Larsen steel plate (11) with an outward opening is connected with the annular support (3) in a spot welding mode.
2. The larsen steel plate hanging box cofferdam device of claim 1, wherein: and a plurality of layers of annular supports (3) are arranged inside the Larsen steel plate pile (1).
3. The Larsen steel plate hanging box cofferdam device of claim 2, characterized in that: the Larsen steel plate pile (1) is maintained to be polygonal, circular or round-end-shaped.
4. The Larsen steel plate hanging box cofferdam device of claim 3, characterized in that: the Larsen steel plate pile (1) is maintained to be polygonal, the annular supports (3) are also polygonal, and reinforcing supports (4) are connected between adjacent edges of the annular supports (3).
5. The larsen steel plate hanging box cofferdam device of claim 1, wherein: the bottom maintenance device is characterized in that a hole matched with the pile foundation (8) is formed in the bottom maintenance device (2), the upper end of the pile foundation (8) penetrates through the hole to be inserted into the bottom of the Larsen steel plate hanging box cofferdam device, and the pile foundation is fixed through bottom sealing concrete (5).
6. The Larsen steel plate hanging box cofferdam device of claim 5, wherein: and a bearing platform (6) is constructed on the bottom sealing concrete (5), and the bearing platform (6) is positioned in the middle of the bottom sealing concrete (5).
7. The larsen steel plate hanging box cofferdam device of claim 1, wherein: and the lock catch of the Larsen steel plate pile (1) is provided with composite water stop rubber and coated with water stop rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920413034.1U CN210368999U (en) | 2019-03-29 | 2019-03-29 | Larsen steel plate hanging box cofferdam device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920413034.1U CN210368999U (en) | 2019-03-29 | 2019-03-29 | Larsen steel plate hanging box cofferdam device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210368999U true CN210368999U (en) | 2020-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920413034.1U Active CN210368999U (en) | 2019-03-29 | 2019-03-29 | Larsen steel plate hanging box cofferdam device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210368999U (en) |
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2019
- 2019-03-29 CN CN201920413034.1U patent/CN210368999U/en active Active
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