River-crossing aqueduct diversion cofferdam

Abstract

The utility model discloses a river-crossing aqueduct diversion cofferdam, and relates to the technical field of cofferdams. The river-crossing aqueduct diversion cofferdam comprises a river channel body, two symmetrical baffles are arranged in the river channel body, two symmetrical surrounding plates are fixed between the two baffles and are rectangular, a water channel is formed in the river channel body, the water channel is located on one side of the surrounding plates, fixing plates are fixed to the lower ends of the baffles, and limiting mechanisms are arranged between the fixing plates and the river channel body. And through the limiting mechanism, the water flow impact resistance of the cofferdam is improved, the overall stability of the cofferdam is improved, the situation of cofferdam settlement is reduced, and construction is facilitated.

Description

Technical Field

[0001] This application relates to the field of cofferdam technology, and in particular to a cross-river aqueduct diversion cofferdam. Background Technology

[0002] A cross-river aqueduct diversion cofferdam is a temporary structure used in water conservancy projects. Its main function is to intercept water flow, optimize the direction of water flow, and provide a stable construction environment.

[0003] One of the main functions of a diversion cofferdam is to provide a relatively dry environment for the construction area by intercepting water flow, thereby ensuring construction safety and efficiency and facilitating the diversion of the river channel.

[0004] When existing diversion cofferdams are used, the river is cut off by cofferdams or segmented cofferdams. Concrete slabs or earth-rock cofferdams directly block the river flow, which is convenient for intercepting the water flow and construction. However, when facing the impact of the river flow, it is not easy to reduce the pressure of the water flow impact. Under long-term impact, the cofferdam is prone to settlement, affecting the overall stability of the cofferdam and making it difficult to stabilize the construction environment. Utility Model Content

[0005] The purpose of this application is to address the problem that existing diversion cofferdams, which use cofferdams or segmented cofferdams to block the river and directly impede the river flow with concrete slabs or earth and rock cofferdams, are not conducive to water flow interception and construction. However, when faced with the impact of the river flow, they are not easy to reduce the pressure of the water flow, and under long-term impact, the cofferdam is prone to settlement, affecting the overall stability of the cofferdam and making it difficult to stabilize the construction environment. This application provides a cross-river aqueduct diversion cofferdam.

[0006] To achieve the above objectives, this application specifically adopts the following technical solution:

[0007] A cross-river aqueduct diversion cofferdam includes a river body, two symmetrical baffles are provided in the river body, two symmetrical rectangular retaining plates are fixed between the two baffles, a waterway is opened on the river body, the waterway is located on one side of the retaining plates, a fixing plate is fixed at the lower end of the baffles, and a limiting mechanism is provided between the fixing plate and the river body.

[0008] By adopting the above technical solutions and using the limiting mechanism, the cofferdam's resistance to water flow impact is improved, its overall stability is enhanced, settlement is reduced, and construction is facilitated.

[0009] Furthermore, the limiting mechanism includes a guide block fixed to one side of one of the baffles, a support plate fixed to the lower end of the guide block, the support plate being perpendicular to the guide block, one side of the guide block being arc-shaped, and a support assembly being provided between the baffle and the fixed plate.

[0010] By adopting the above technical solution, the guide block is arc-shaped to facilitate the guidance of river water into the waterway, optimize the direction of water flow, and reduce the direct impact of water flow.

[0011] Furthermore, the support assembly includes fixed columns arranged in an array within a baffle, the upper end of the fixed column being threadedly connected to the baffle, the fixed column extending out of the baffle, the baffle being at a right angle to the fixed plate, a support column fixed to one side of the baffle, the end of the support column away from the baffle being fixedly connected to the fixed plate, the support column being inclined, and a limiting member being provided between the support column and the river body.

[0012] By adopting the above technical solution, multiple fixed columns can improve the stability of the baffle, and the inclined support columns can increase the supporting force on the baffle, which can facilitate the overall stability of the cofferdam.

[0013] Furthermore, the limiting component includes a connecting plate fixed to the fixing plate, the connecting plate being fixedly connected to the support column, the lower end of the connecting plate being fixed with limiting columns arranged in an array, the limiting columns being fixedly connected to a fixing head through the fixing plate, the fixing head being conical.

[0014] By adopting the above technical solution, the connecting plate can easily connect and transmit the force of multiple support columns into the limiting column, which facilitates the overall stability of the cofferdam and disperses the impact force of the water flow.

[0015] Furthermore, a triangular plate is fixed to one end of the support plate, the guide block corresponds to the waterway, and a limiting plate is fixed to one side of the river body, the limiting plate corresponding to the guide block.

[0016] By adopting the above technical solution, the triangular block can easily guide the direction of water flow, reduce water flow turbulence, and reduce the accumulation of silt on the support plate and guide block.

[0017] Furthermore, the guide block is a high-density polyethylene block, and the guide block has fixing holes arranged in an array.

[0018] By adopting the above technical solution, the diversion block is made of high-density polyethylene, which improves the impact resistance and durability of the cofferdam.

[0019] Furthermore, a waterproof layer is fixed on the baffle, the enclosure, and the guide block, and the waterproof layer is a geomembrane layer.

[0020] By adopting the above technical solution, the first waterproof layer is a geomembrane layer, which increases the seepage prevention performance of the cofferdam and facilitates the protection of the cofferdam.

[0021] Furthermore, a second waterproof layer is fixed to one side of the first waterproof layer, and the second waterproof layer is a polyurethane waterproof coating layer.

[0022] By adopting the above technical solutions, the second waterproof layer improves the protective effect of the cofferdam, reduces water infiltration, and enhances the cofferdam's weather resistance and acid and alkali resistance.

[0023] In summary, this application includes at least one of the following beneficial effects:

[0024] 1. When the cofferdam is in use, the river water flows into the support plate and contacts the guide block. The guide block is arc-shaped to guide the river water into the waterway, optimize the water flow direction, and reduce the direct impact of the water flow. The support plate and the guide block are at right angles, and the pressure of the water flow helps stabilize the guide block. The impact force enters the baffle through the guide block. Multiple fixed columns inside the baffle improve the stability of the baffle and the overall stability of the cofferdam. Twisting the fixed columns allows them to move within the baffle, improving the restriction effect on the baffle. The inclined support columns increase the support force on the baffle. The connecting plate facilitates the connection and transmission of the force of multiple support columns to the restriction column, which helps the overall stability of the cofferdam. The fixed head is conical, which facilitates the insertion and installation of the restriction column and disperses the impact force of the water flow. The restriction mechanism improves the cofferdam's resistance to water flow impact and durability, facilitates the use of the cofferdam, improves the overall stability of the cofferdam, reduces the possibility of cofferdam settlement, and facilitates construction.

[0025] 2. When using a cofferdam, the first waterproof layer is a geomembrane layer, which increases the cofferdam's seepage prevention performance, facilitates the protection of the cofferdam, facilitates the interception of the river channel, and ensures construction safety. The second waterproof layer further improves the protective effect of the cofferdam, reduces water infiltration, and improves the cofferdam's weather resistance and acid and alkali resistance. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the diversion cofferdam in this application.

[0027] Figure 2 This is a schematic diagram of the first internal structure of the diversion cofferdam in this application.

[0028] Figure 3 This is a schematic diagram of the internal two structures of the diversion cofferdam in this application.

[0029] Figure 4 This is a schematic diagram of the baffle in this application.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Riverbed body; 2. Baffle; 3. Enclosure; 4. Fixing plate; 5. Waterway; 6. Fixing column; 7. Diverting block; 8. Support plate; 9. Triangular plate; 10. Supporting column; 11. Connecting plate; 12. Restricting column; 13. Fixing head; 14. Fixing hole; 15. Restricting plate; 16. Waterproof layer one; 17. Waterproof layer two. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0033] This application discloses a cross-river aqueduct diversion cofferdam.

[0034] Reference Figure 1 A cross-river aqueduct diversion cofferdam includes a river body 1, with two symmetrical baffles 2 installed inside the river body 1. Two symmetrical rectangular retaining plates 3 are fixed between the two baffles 2. A waterway 5 is opened on the river body 1, and the waterway 5 is located on one side of the retaining plates 3. A fixing plate 4 is fixed at the lower end of the baffles 2, and a limiting mechanism is provided between the fixing plate 4 and the river body 1.

[0035] During construction, workers transport the baffle 2 and the enclosure 3 to a suitable location, and open a waterway 5 at the location where construction is needed to facilitate the passage of river water. The baffle 2 and the enclosure 3 are intercepted by hoisting equipment and placed in the river channel where construction is needed. The water inside the baffle 2 is drained by pumping equipment to facilitate construction. During installation, the limiting mechanism is used to improve the cofferdam's resistance to water flow impact, enhance the overall stability of the cofferdam, reduce cofferdam settlement, and facilitate construction.

[0036] Reference Figures 2-3 The limiting mechanism includes a guide block 7 fixed to one side of one of the baffles 2. A support plate 8 is fixed to the lower end of the guide block 7, perpendicular to the guide block 7. One side of the guide block 7 is arc-shaped. A support assembly is provided between the baffle 2 and the fixed plate 4. The support assembly includes fixed columns 6 arranged in an array within the baffle 2. The upper end of the fixed columns 6 is threaded to the baffle 2, and the fixed columns 6 extend out of the baffle 2. The baffle 2 and the fixed plate 4 are at right angles. A support column 10 is fixed to one side of the baffle 2. The end of the support column 10 away from the baffle 2 is fixedly connected to the fixed plate 4. The support column 10 is inclined. A limiting element is provided between the support column 10 and the river body 1. The limiting element includes a connecting plate 11 fixed to the fixed plate 4. The connecting plate 11 is fixedly connected to the support column 10. A limiting column 12 is fixed to the lower end of the connecting plate 11 and arranged in an array. The limiting column 12 passes through the fixed plate 4 and is fixedly connected to a fixing head 13, which is conical. A triangular plate 9 is fixed to one end of the support plate 8. The guide block 7 corresponds to the waterway 5. A limiting plate 15 is fixed to one side of the river body 1, and the limiting plate 15 corresponds to the guide block 7. The guide block 7 is a high-density polyethylene block, and fixing holes 14 are provided on the guide block 7 and distributed in an array.

[0037] When the cofferdam is in use, the river water flows into the support plate 8 and contacts the guide block 7. The guide block 7 is arc-shaped to facilitate guiding the river water into the waterway 5. Some of the water flows into the fixing hole 14, which helps to reduce the concentration of water pressure, reduce the water velocity and reduce the scouring of the cofferdam, optimize the water flow direction and reduce the direct impact of the water flow. The support plate 8 and the guide block 7 are at right angles, and the pressure of the water flow helps to stabilize the guide block 7. The impact force enters the baffle 2 through the guide block 7. The multiple fixing columns 6 in the baffle 2 help to improve the stability of the baffle 2 and improve the overall stability of the cofferdam. Twisting the fixing columns 6 makes them move within the baffle 2, improving the restraining effect on the baffle 2. The inclined support... The column 10 increases the supporting force on the baffle 2. The connecting plate 11 facilitates the connection and transmission of the force of multiple supporting columns 10 into the limiting column 12, which is conducive to the overall stability of the cofferdam. The fixed head 13 is a conical head, which facilitates the insertion and installation of the limiting column 12 and disperses the impact force of the water flow. The triangular block facilitates the guidance of the water flow direction, reduces water flow turbulence, and reduces the accumulation of silt on the supporting plate 8 and the guide block 7. The guide block 7 is a high-density polyethylene block, which improves the impact resistance and durability of the cofferdam. The limiting mechanism facilitates the improvement of the cofferdam's resistance to water flow impact and durability, facilitates the use of the cofferdam, improves the overall stability of the cofferdam, reduces the settlement of the cofferdam, and facilitates construction.

[0038] Reference Figure 4 Waterproof layer 16, which is a geomembrane layer, is fixed on baffle 2, enclosure 3, and guide block 7. Waterproof layer 17 is fixed on one side of waterproof layer 16. Waterproof layer 17 is a polyurethane waterproof coating layer.

[0039] When used in cofferdams, waterproof layer 16 is a geomembrane layer, which increases the seepage prevention performance of the cofferdam, facilitates the protection of the cofferdam, facilitates the interception of the river channel, and ensures construction safety. Waterproof layer 2 17 further improves the protective effect of the cofferdam, reduces water infiltration, and improves the weather resistance and acid and alkali resistance of the cofferdam.

[0040] The implementation principle of the cross-river aqueduct diversion cofferdam in this embodiment is as follows: During construction, the workers transport the baffle 2 and the cofferdam 3 to a suitable location, open a waterway 5 at the location where construction is required to facilitate the passage of river water, use hoisting equipment to intercept the baffle 2 and the cofferdam 3 to the river channel where construction is required, and use pumping equipment to drain the water in the baffle 2 to facilitate the workers' construction.

[0041] When the cofferdam is in use, the river water flows into the support plate 8 and contacts the guide block 7. The guide block 7 is arc-shaped to facilitate the guidance of the river water into the waterway 5. Some of the water flows into the fixing hole 14, which helps to reduce the concentration of water pressure, reduce the water velocity and reduce the scouring of the cofferdam, optimize the water flow direction and reduce the direct impact of the water flow. The support plate 8 and the guide block 7 are at right angles, and the pressure of the water flow helps to stabilize the guide block 7. The impact force enters the baffle 2 through the guide block 7. The multiple fixing columns 6 in the baffle 2 help to improve the stability of the baffle 2 and improve the overall stability of the cofferdam. Tightening the fixing columns 6 This allows the fixed column 10 to move within the baffle 2, improving the restriction effect on the baffle 2. The inclined support column 10 increases the support force on the baffle 2. The connecting plate 11 facilitates the connection and transmission of the force of multiple support columns 10 into the restriction column 12, which is conducive to the overall stability of the cofferdam. The fixed head 13 is a conical head, which facilitates the insertion and installation of the restriction column 12 and disperses the impact force of the water flow. The triangular block facilitates the guidance of the water flow direction, reduces the turbulence of the water flow, and reduces the accumulation of silt on the support plate 8 and the guide block 7. The guide block 7 is a high-density polyethylene block, which improves the impact resistance and durability of the cofferdam.

[0042] When used in cofferdams, waterproof layer 16 is a geomembrane layer, which increases the seepage prevention performance of the cofferdam, facilitates the protection of the cofferdam, facilitates the interception of the river channel, and ensures construction safety. Waterproof layer 2 17 further improves the protective effect of the cofferdam, reduces water infiltration, and improves the weather resistance and acid and alkali resistance of the cofferdam.

Claims

1. A river-crossing aqueduct flow guiding cofferdam comprising a river channel body (1), characterized in that: The river body (1) is provided with two symmetrical baffles (2), and two symmetrical enclosures (3) are fixed between the two baffles (2) in a rectangular shape. A waterway (5) is opened on the river body (1), and the waterway (5) is located on one side of the enclosure (3). A fixing plate (4) is fixed at the lower end of the baffle (2), and a limiting mechanism is provided between the fixing plate (4) and the river body (1).

2. The river-crossing aqueduct flow control cofferdam according to claim 1, wherein: The limiting mechanism includes a flow guide block (7) fixed to one side of one of the baffles (2), a support plate (8) fixed to the lower end of the flow guide block (7), the support plate (8) being perpendicular to the flow guide block (7), one side of the flow guide block (7) being arc-shaped, and a support component being provided between the baffle (2) and the fixing plate (4).

3. The river-crossing aqueduct flow-diversion cofferdam of claim 2, wherein: The support assembly includes fixed columns (6) arranged in an array within the baffle (2). The upper end of the fixed column (6) is threaded to the baffle (2). The fixed column (6) extends out of the baffle (2). The baffle (2) and the fixed plate (4) are at right angles. A support column (10) is fixed on one side of the baffle (2). The end of the support column (10) away from the baffle (2) is fixedly connected to the fixed plate (4). The support column (10) is inclined. A limiting element is provided between the support column (10) and the river body (1).

4. The river-crossing aqueduct flow control cofferdam according to claim 3, wherein: The limiting component includes a connecting plate (11) fixed on a fixing plate (4), the connecting plate (11) being fixedly connected to a support column (10), a limiting column (12) fixed at the lower end of the connecting plate (11) and arranged in an array, the limiting column (12) penetrating the fixing plate (4) and being fixedly connected to a fixing head (13), the fixing head (13) being conical.

5. A cross-river aqueduct diversion cofferdam according to claim 2, characterized in that: A triangular plate (9) is fixed to one end of the support plate (8), the guide block (7) corresponds to the waterway (5), and a limiting plate (15) is fixed to one side of the river body (1), the limiting plate (15) corresponds to the guide block (7).

6. The river-crossing aqueduct flow-diversion cofferdam of claim 5, wherein: The guide block (7) is a high-density polyethylene block, and the guide block (7) has fixing holes (14) arranged in an array.

7. The river-crossing aqueduct flow-diversion cofferdam of claim 1, wherein: The baffle (2), the enclosure (3) and the guide block (7) are all fixed with a waterproof layer (16), which is a geomembrane layer.

8. The river-crossing aqueduct flow-diversion cofferdam of claim 7, wherein: A second waterproof layer (17) is fixed to one side of the first waterproof layer (16), and the second waterproof layer (17) is a polyurethane waterproof coating layer.

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