Cofferdam device for hydraulic engineering construction

Abstract

The utility model relates to the technical field of water conservancy project construction, in particular to a cofferdam device for water conservancy project construction, which comprises a pile column, reinforcing mechanisms are arranged on two sides of the pile column, the stability of the whole structure of the pile column is improved by arranging the reinforcing mechanisms on the two sides of the pile column, and after the pile column is inserted into a designated position, the pile column is fixed. The cover plate is mounted in the slide ways on the piles through the first slide blocks, and the mounted cover plate can automatically sink to cover silt at the positions where the bottoms of the piles are inserted due to the gravity of the cover plate, so that erosion of running water to the silt at the supporting positions of the piles is reduced, the problem that the stability is reduced due to exposure of the piles is solved, and in a river channel with the rapid flow speed, the effect is good. Counterweight rocks can be placed on the inner wall of the top frame of the cover plate so as to further improve the stability of the pile, the hollow groove is formed in the water retaining side of the pile, when water flow impacts the pile, the elastic plate is extruded preferentially, the potential energy of water is reduced through deformation of the elastic plate, and damage to the pile is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy project construction, in particular to a cofferdam device for water conservancy project construction. 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] Prior art, such as publication number CN207260173U, provides a river channel construction cofferdam structure, which includes a plurality of supporting steel pipes distributed in sequence along the width direction of the river channel, the front end faces of the supporting steel pipes are provided with bamboo fences, and the bamboo fences are covered with waterproof cloth; each supporting steel pipe is provided with mounting troughs extending along its height direction on both sides, and isolation end plates are provided between any two adjacent supporting steel pipes, and both sides of the isolation end plates extend into the mounting troughs, and the isolation end plates are covered with waterproof cloth; the above-mentioned river channel construction cofferdam structure can realize efficient and convenient cofferdam construction and processing for rivers in any environment, and stably intercept the river during its working process to meet the needs of the water conservancy project construction process.

[0004] However, in actual use, if the soil at the location where the cofferdam is installed is soft or the river flow is turbulent, the part of the cofferdam inserted into the mud and sand may be exposed due to the action of the flowing water, resulting in a decrease in the overall stability. In view of this, we propose a cofferdam device for water conservancy project construction. Utility Model Content

[0005] The utility model aims to provide a cofferdam device for water conservancy project construction, which solves the problem that the part of the cofferdam inserted into the mud and sand may be exposed due to the action of flowing water, resulting in a decrease in overall stability.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A cofferdam device for water conservancy project construction includes a pile column, and reinforcement mechanisms are arranged on both sides of the pile column;

[0008] The reinforcement mechanism includes two cover plates, which are respectively arranged on both sides of the pile, and both sides of the two cover plates are fixedly connected with first support rods, and the ends of the two first support rods close to the pile are fixedly connected with first sliders, and the first sliders are slidably connected to slideways opened at corresponding positions on the surface of the pile. The cover plates can be sunk to cover the mud and sand at the position where the bottom of the pile is inserted, thereby reducing the erosion of mud and sand at the pile support by running water and avoiding the problem of reduced stability due to exposed piles.

[0009] Preferably, the first support rod is fixedly connected to an inclined rod at one end away from the pile column, and a second slider is fixedly connected to the top of the inclined rod, and the second slider is slidably connected to the inner wall of the corresponding slideway. By setting the inclined rod, a supporting force can be provided to the end of the first support rod away from the pile column, so that the first support rod can maintain a balanced state.

[0010] Preferably, the inner wall of the cover plate is provided with strip grooves to facilitate the flow of water and reduce the resistance when the cover plate rises or falls. A frame is fixed on the top of the cover plate. In rivers with relatively turbulent flow, counterweighted rocks can be placed on the inner wall of the frame on the top of the cover plate to further improve the stability of the pile.

[0011] Preferably, a hollow groove is provided on one side of the pile column for retaining water, and the bottom of the pile column is arranged at a sharp angle.

[0012] Preferably, the pile is fixedly connected to an elastic plate at the position of the hollow groove, and a through hole is provided on the elastic plate, through which water can flow into the hollow groove, and the hollow groove can provide a certain supporting force for the elastic plate.

[0013] Preferably, a splicing groove is provided on one side of the pile, and a splicing strip is fixedly connected to the other side of the pile.

[0014] Preferably, the inner wall of the splicing groove is a convex depression, the splicing strip is a T-shaped protrusion, and the splicing strip is adapted to the splicing groove.

[0015] By means of the above technical solution, the utility model provides a cofferdam device for water conservancy project construction, which has at least the following beneficial effects:

[0016] 1. The utility model improves the stability of the overall structure of the pile by arranging reinforcement mechanisms on both sides of the pile. After the pile is inserted into the designated position, the cover plate is installed in the slideway on the pile through the first slider. After installation, the cover plate will automatically sink due to its own gravity to cover the mud and sand at the insertion position of the bottom of the pile, so as to reduce the erosion of the mud and sand at the support of the pile by the flowing water, avoid the problem of reduced stability caused by the exposure of the pile, and in the river with a relatively turbulent flow, the rock block with counterweight can be placed on the inner wall of the frame at the top of the cover plate to further improve the stability of the pile.

[0017] 2. The utility model provides a hollow groove on the water retaining side of the pile column. When the water flow impacts the pile column, the elastic plate will be squeezed first, and the potential energy of the water will be reduced by the deformation of the elastic plate, thereby reducing the damage to the pile column. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the pile column in the utility model;

[0021] Figure 3 This is a structural diagram showing the reinforcement mechanism in the utility model;

[0022] Figure 4 It is a schematic diagram of the connection relationship between the cover plate and various components in the utility model.

[0023] In the figure: 1. pile; 11. hollow groove; 12. elastic plate; 13. through hole; 14. splicing groove; 15. splicing strip; 2. reinforcement mechanism; 20. slideway; 21. cover plate; 22. first support rod; 23. first slider; 24. frame; 25. diagonal rod; 26. second slider. DETAILED DESCRIPTION

[0024] 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.

[0025] Example 1

[0026] A cofferdam device for water conservancy project construction, such as Figure 1 - Figure 4As shown, it includes a pile column 1, and a reinforcement mechanism 2 is arranged on both sides of the pile column 1. The reinforcement mechanism 2 includes two cover plates 21, and the two cover plates 21 are respectively arranged on both sides of the pile column 1. Both sides of the two cover plates 21 are fixedly connected with first support rods 22, and the ends of the two first support rods 22 close to the pile column 1 are fixedly connected with first sliders 23, and the first sliders 23 are slidably connected with a slideway 20 opened at a corresponding position on the surface of the pile column 1. The end of the first support rod 22 away from the pile column 1 is fixedly connected with an inclined rod 25, and the top of the inclined rod 25 is fixedly connected with a second slider 26. By arranging the inclined rod 25, a supporting force can be provided to the end of the first support rod 22 away from the pile column 1, so that the first support rod 22 can maintain a balanced state, and the second slider 26 is slidably connected to the inner wall of the corresponding slideway 20, and the inner wall of the cover plate 21 is provided with a strip groove to facilitate the circulation of water and reduce the resistance of the cover plate 21 when it rises or falls. A frame 24 is fixed on the top of the cover plate 21.

[0027] In this embodiment, a reinforcement mechanism 2 is provided on both sides of the pile column 1 to improve the stability of the overall structure of the pile column 1. After the pile column 1 is inserted into the designated position, the cover plate 21 is installed in the slideway 20 on the pile column 1 through the first slider 23. After installation, the cover plate 21 will automatically sink due to its own gravity to cover the mud and sand at the insertion position of the bottom of the pile column 1, so as to reduce the erosion of the mud and sand at the support of the pile column 1 by the flowing water, and avoid the problem of reduced stability due to the exposure of the pile column 1. In a river channel with a relatively turbulent flow rate, a counterweight rock block can be placed on the inner wall of the top frame 24 of the cover plate 21 to further improve the stability of the pile column 1.

[0028] Example 2

[0029] like Figure 2 As shown, a hollow groove 11 is provided on one side of the pile 1 for blocking water, so that the materials used for making the pile 1 can be reduced. The bottom of the pile 1 is set at a sharp angle, and the pile 1 is fixedly connected to an elastic plate 12 at the position of the hollow groove 11. A through hole 13 is provided on the elastic plate 12. The through hole 13 allows water to flow into the hollow groove 11, and the hollow groove 11 can provide a certain support force for the elastic plate 12.

[0030] In this embodiment, a hollow groove 11 is provided on the water retaining side of the pile column 1 , and when water flows impact the pile column 1 , the elastic plate 12 is squeezed first, and the potential energy of the water is reduced by the deformation of the elastic plate 12 , thereby reducing damage to the pile column 1 .

[0031] Example 3

[0032] like Figure 2 As shown, a splicing groove 14 is opened on one side of the pile 1, and a splicing strip 15 is fixedly connected to the other side of the pile 1. The inner wall of the splicing groove 14 is a convex depression, and the splicing strip 15 is a T-shaped protrusion. The splicing strip 15 is adapted to the splicing groove 14.

[0033] In this embodiment, during the cofferdam construction, the splicing strips 15 between the piles 1 cooperate with the splicing grooves 14 to facilitate splicing of the piles 1 to form the cofferdam. During the specific construction, the splicing strips 15 are inserted into the splicing grooves 14.

[0034] When a cofferdam device for water conservancy project construction of the utility model is in use, during the cofferdam construction, the splicing strips 15 between the piles 1 are matched with the splicing grooves 14 to facilitate the splicing of the piles 1 to form a cofferdam. During the specific construction, the splicing strips 15 can be inserted into the splicing grooves 14. After the piles 1 are inserted into the specified position, the cover plate 21 is installed in the slideway 20 on the pile 1 through the first slider 23. After installation, the cover plate 21 will automatically sink due to its own gravity to cover the mud and sand at the position where the bottom of the pile 1 is inserted, so as to reduce the erosion of the mud and sand at the support of the pile 1 by the flowing water, and avoid the problem of reduced stability caused by the exposure of the pile 1. In the river channel with a relatively turbulent flow rate, a counterweight rock block can be placed on the inner wall of the top frame 24 of the cover plate 21 to further improve the stability of the pile 1.

[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.

[0036] 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 cofferdam device for water conservancy project construction, comprising a pile column (1), characterized in that: Reinforcement mechanisms (2) are provided on both sides of the pile column (1); The reinforcement mechanism (2) comprises two cover plates (21), the two cover plates (21) are respectively arranged on both sides of the pile column (1), the two sides of the two cover plates (21) are fixedly connected to first support rods (22), the ends of the two first support rods (22) close to the pile column (1) are fixedly connected to first sliding blocks (23), and the first sliding blocks (23) are slidably connected to slideways (20) provided at corresponding positions on the surface of the pile column (1); A hollow groove (11) is provided on one side of the pile column (1) for retaining water, and the bottom of the pile column (1) is arranged in a pointed angle; The pile column (1) is fixedly connected to an elastic plate (12) at the position of the hollow groove (11), and a through hole (13) is formed on the elastic plate (12).

2. A cofferdam device for water conservancy project construction according to claim 1, characterized in that: The first support rod (22) is fixedly connected to an inclined rod (25) at one end away from the pile column (1), the top of the inclined rod (25) is fixedly connected to a second sliding block (26), and the second sliding block (26) is slidably connected to the inner wall of the corresponding slideway (20).

3. A cofferdam device for water conservancy project construction according to claim 1, characterized in that: The inner wall of the cover plate (21) is provided with a strip-shaped groove, and the top of the cover plate (21) is fixed with a frame (24).

4. A cofferdam device for water conservancy project construction according to claim 1, characterized in that: A splicing groove (14) is provided on one side of the pile column (1), and a splicing strip (15) is fixedly connected to the other side of the pile column (1).

5. A cofferdam device for water conservancy project construction according to claim 4, characterized in that: The inner wall of the splicing groove (14) is concave in the shape of a convex letter, and the splicing strip (15) is convex in the shape of a T. The splicing strip (15) is adapted to the splicing groove (14).

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