Water conservancy construction cofferdam device

Abstract

The utility model discloses a cofferdam device for water conservancy construction. The cofferdam device comprises a steel sheet pile, a first back plate is welded below the steel sheet pile, a second back plate is fixedly connected below the first back plate through a plurality of connecting pieces, a plurality of first seat bodies are welded below the second back plate, and supporting columns are fixedly connected to the bottoms of the first seat bodies through a plurality of rivets. The utility model relates to the technical field of water conservancy cofferdams, through the cooperation among the first back plate, the second back plate and the steel sheet pile, the first back plate and other structures are arranged behind the steel sheet pile for supporting, the overall supporting strength of the cofferdam is improved, and the problems that an existing device is ordinary in supporting strength and poor in supporting performance are solved. And if the water level is too deep, the steel sheet piles on the outer side are inclined, and the safety is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy cofferdams, in particular to a water conservancy construction cofferdam device. Background Art

[0002] A cofferdam is a temporary retaining structure built for permanent water conservancy facilities in water conservancy project construction. Its function is to prevent water and soil from entering the construction site of the building so that drainage can be done in the cofferdam, foundation pits can be excavated, and buildings can be built. It is generally used in hydraulic structures. Except as part of a formal building, the cofferdam is generally dismantled after use. The height of the cofferdam is higher than the highest water level that may occur during the construction period.

[0003] The outermost side of the existing cofferdam is protected by steel sheet piles, wherein the steel sheet piles are a kind of steel structure with linkage devices on the edge, and the linkage devices can be freely combined to form a continuous and tight retaining wall or water retaining wall.

[0004] However, the existing device has average support strength. If the water level is too deep, the outer steel sheet piles will tilt, reducing safety. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a water conservancy construction cofferdam device, which solves the problem that the existing device has general supporting strength and will cause the outer steel sheet piles to tilt if the water level is too deep, thereby reducing safety.

[0006] To achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions: a water conservancy construction cofferdam device, including steel sheet piles, a first back plate is welded under the steel sheet piles, a second back plate is fixedly connected to the bottom of the first back plate through a plurality of connecting parts, a plurality of first seat bodies are welded under the second back plate, and a support column is fixed to the bottom of the first seat body through a plurality of rivets.

[0007] Preferably, a plurality of first reinforcing ribs are installed on the inner side of the steel sheet pile, and both sides of the connecting member are fixedly connected to the inner side of the first back plate or the second back plate through second reinforcing ribs.

[0008] Preferably, the top of the steel sheet pile is fixedly connected to a second seat body by bolts, and the back side of the second seat body is fixedly connected to a steel chisel.

[0009] Preferably, the bottom of the steel sheet pile is processed with a first positioning groove and a second positioning groove, respectively, one side of the steel sheet pile is processed with a positioning seat, and the other side of the steel sheet pile is processed with a positioning block.

[0010] Preferably, a steel plate layer is provided inside the steel sheet pile, a primer layer is provided outside the steel plate layer, and an anti-corrosion layer is provided outside the primer layer.

[0011] Beneficial Effects

[0012] The utility model provides a water conservancy construction cofferdam device. It has the following beneficial effects: the water conservancy construction cofferdam device is provided with a first back plate and a second back plate and a steel sheet pile for support by arranging a first back plate and other structures behind the steel sheet pile, thereby improving the overall support strength of the cofferdam, solving the problem that the support strength of the existing device is average, and if the water level is too deep, the outer steel sheet pile will be tilted, thereby reducing the safety.

[0013] Through the coordination among the steel sheet piles, the positioning blocks and the second positioning grooves, the steel sheet piles can be spliced ​​at the corner positions, thus ensuring the closure of the contact positions and avoiding leakage in the gaps. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 for Figure 1 Schematic diagram of the structure of the middle anti-corrosion layer, primer layer and steel plate;

[0016] Figure 3 for Figure 1 Structural schematic diagram of the middle steel sheet pile, the first positioning groove and the positioning seat;

[0017] Figure 4 for Figure 1 Schematic diagram of the structure of the middle steel sheet pile, positioning block and second positioning groove.

[0018] In the figure: 1. steel sheet pile, 2. first reinforcing rib, 3. first back plate, 4. connecting piece, 5. second back plate, 6. second reinforcing rib, 7. first seat body, 8. anti-corrosion layer, 9. primer layer, 10. steel plate, 11. second seat body, 12. steel chisel, 13. bolt, 14. first positioning groove, 15. positioning seat, 16. positioning block, 17. second positioning groove, 18. support column. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] The existing device has average support strength. If the water level is too deep, the outer steel sheet piles will tilt, reducing safety.

[0021] In view of this, a water conservancy construction cofferdam device is provided. Through the cooperation between the first back plate, the second back plate and the steel sheet piles, a first back plate and other structures are arranged behind the steel sheet piles for support, thereby improving the overall supporting strength of the cofferdam and solving the problem that the supporting strength of the existing device is general, and if the water level is too deep, the outer steel sheet piles will be tilted, thereby reducing the safety.

[0022] By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in the art. The following mainly introduces the working principle and process.

[0023] Embodiment 1: Figure 1 It can be seen that a water conservancy construction cofferdam device includes a steel sheet pile 1, a first back plate 3 is welded below the steel sheet pile 1, a second back plate 5 is fixedly connected below the first back plate 3 through a plurality of connectors 4, a plurality of first seats 7 are welded below the second back plate 5, and a support column 18 is fixedly connected to the bottom of the first seat 7 through a plurality of rivets;

[0024] In the specific implementation process, it is worth pointing out that the support column 18 can support the steel sheet pile 1, and the first back plate 3 and the second back plate 5 can support the steel sheet pile 1;

[0025] Furthermore, a plurality of first reinforcing ribs 2 are installed on the inner side of the steel sheet pile 1, and both sides of the connecting member 4 are fixedly connected to the inner side of the first back plate 3 or the second back plate 5 through the second reinforcing ribs 6;

[0026] In the specific implementation process, it is worth pointing out that the multiple first reinforcing ribs 2 increase the strength of the outer side of the steel sheet pile 1.

[0027] Furthermore, the top of the steel sheet pile 1 is fixedly connected to a second base body 11 by means of bolts 13, and the back of the second base body 11 is fixedly connected to a steel chisel 12;

[0028] In the specific implementation process, it is worth pointing out that after the steel sheet pile 1 is inserted into the riverbed, the steel chisel 12 plays a role of auxiliary fixation;

[0029] Specifically, when the water conservancy construction cofferdam device is used, through the cooperation between the first back plate 3, the second back plate 5 and the steel sheet pile 1, the first back plate 3 and other structures are arranged behind the steel sheet pile 1 for support, thereby improving the overall support strength of the cofferdam and solving the problem that the support strength of the existing device is general, and if the water level is too deep, it will cause the outer steel sheet pile 1 to tilt, thereby reducing the safety.

[0030] Embodiment 2: By Figure 1-4It can be seen that the bottom of the steel sheet pile 1 is processed with a first positioning groove 14 and a second positioning groove 17, a positioning seat 15 is processed on one side of the steel sheet pile 1, and a positioning block 16 is processed on the other side of the steel sheet pile 1;

[0031] In the specific implementation process, it is worth pointing out that the first positioning groove 14 and the second positioning groove 17 have the same shape, and are the same as the shape of the outer side of the positioning block 16;

[0032] Furthermore, a steel plate layer 10 is provided inside the steel sheet pile 1, a primer layer 9 is provided outside the steel plate layer 10, the primer layer 9 is made of epoxy resin, and an anti-corrosion layer 8 is provided outside the primer layer 9;

[0033] In the specific implementation process, it is worth pointing out that the main material of the anti-corrosion layer 8 is polyurethane asphalt anti-corrosion paint, which has the advantages of long service life and convenient construction;

[0034] Specifically, on the basis of the above-mentioned embodiment 1, the steel sheet pile 1 is spliced ​​at the corner position through the cooperation between the positioning block 16 and the second positioning groove 17, thereby ensuring the closure of the contact position and avoiding leakage in the gap.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "including an element defined by... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0036] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water conservancy construction cofferdam device, comprising a steel sheet pile (1), characterized in that: A first back plate (3) is welded below the steel sheet pile (1), a second back plate (5) is fixedly connected below the first back plate (3) via a plurality of connectors (4), a plurality of first base bodies (7) are welded below the second back plate (5), and a support column (18) is fixedly connected to the bottom of the first base body (7) via a plurality of rivets.

2. A water conservancy construction cofferdam device according to claim 1, characterized in that: A plurality of first reinforcing ribs (2) are installed on the inner side of the steel sheet pile (1), and both sides of the connecting member (4) are fixedly connected to the inner side of the first back plate (3) or the second back plate (5) via second reinforcing ribs (6).

3. A water conservancy construction cofferdam device according to claim 1, characterized in that: The top of the steel sheet pile (1) is fixedly connected to a second seat body (11) via bolts (13), and the back of the second seat body (11) is fixedly connected to a steel chisel (12).

4. A water conservancy construction cofferdam device according to claim 1, characterized in that: The bottom of the steel sheet pile (1) is processed with a first positioning groove (14) and a second positioning groove (17), one side of the steel sheet pile (1) is processed with a positioning seat (15), and the other side of the steel sheet pile (1) is processed with a positioning block (16).

5. A water conservancy construction cofferdam device according to claim 1, characterized in that: A steel plate layer (10) is arranged inside the steel sheet pile (1), a primer layer (9) is arranged outside the steel plate layer (10), and an anti-corrosion layer (8) is arranged outside the primer layer (9).

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