Cofferdam for ship lock construction and construction method

Abstract

The application relates to the technical field of hydraulic engineering, in particular to a cofferdam for ship lock construction and a construction method, which comprises a first mounting mechanism, a second mounting mechanism, two cofferdam main bodies and a plurality of assembled blocking mechanisms, the first mounting mechanism is arranged in the cofferdam main body, the second mounting mechanism is arranged between the two first mounting mechanisms, and a plurality of assembled blocking mechanisms are arranged between the second mounting mechanism and the first mounting mechanism. According to the application, the two first mounting mechanisms are arranged in the cofferdam main body, the second mounting mechanism is arranged between the two first mounting mechanisms, the sandbag plugging mechanism is first arranged between the first mounting mechanism and the second mounting mechanism, then the plurality of assembled blocking mechanisms are arranged between the first mounting mechanism and the second mounting mechanism, the support of the two cofferdam main bodies is completed, the waste of resources is reduced, and the cost required by construction is reduced.

Description

Technical Field

[0001] This invention relates to the field of water conservancy engineering technology, specifically to a cofferdam and construction method for lock construction. Background Technology

[0002] For example, Chinese patent CN120465500B discloses a cofferdam and construction method for lock renovation, including a concrete cofferdam body and a hollow concrete support structure. The concrete cofferdam body is set close to the walls on both sides of the lock and extends along the water flow direction. The hollow concrete support structure is set between two adjacent concrete cofferdam bodies. The hollow concrete support structure is fixedly connected to the concrete cofferdam body through a connecting device. The hollow concrete support structure includes a bottom layer, a hollow layer, and a top layer. Multiple rows of cavities are formed inside the hollow layer. Blasting devices are embedded at equal intervals in the concrete walls between two adjacent cavities.

[0003] However, the above solution has the following shortcomings: The above patent uses a blasting device to quickly dismantle the hollow concrete support structure. Although this method is relatively convenient, it cannot ensure that the support structure can be used again in the next construction while being quickly dismantled, thus reducing the waste of resources and the cost of construction. Therefore, we propose a cofferdam and construction method for lock construction. Summary of the Invention

[0004] The purpose of this invention is to provide a cofferdam and construction method for lock construction, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A cofferdam for lock construction includes a first installation mechanism, a second installation mechanism, two cofferdam bodies, and several assembled blocking mechanisms. The first installation mechanism is located inside the cofferdam body, the second installation mechanism is located between the two first installation mechanisms, and several assembled blocking mechanisms are installed between the second installation mechanism and the first installation mechanism. A sandbag sealing mechanism is provided at the lower end of the lowest assembled blocking mechanism. The sandbag sealing mechanism is installed between the first installation mechanism and the second installation mechanism. By installing the sandbag sealing mechanism and several assembled blocking mechanisms between the first installation mechanism and the second installation mechanism, the two cofferdam bodies are supported, and the space between the two cofferdam bodies is sealed.

[0007] Preferably, the first installation mechanism includes a first installation column, which is fixedly connected to one side of the cofferdam body. A first installation groove is provided on one side of the first installation column, and two T-shaped sliding cavities are provided in the first installation groove. Clamping and sealing components are slidably connected in the T-shaped sliding cavities.

[0008] Preferably, the second mounting mechanism includes a second mounting post, with two second mounting grooves on both sides of the second mounting post. Two T-shaped sliding cavities are also formed in the second mounting grooves, and clamping and sealing components are also slidably connected in the T-shaped sliding cavities. The lower end of the second mounting post is connected to the base through several first screws.

[0009] Preferably, the clamping and sealing assembly includes a T-shaped rod, which slides within a T-shaped sliding cavity. A connecting plate is fixedly connected to one side of the T-shaped rod, and a sealing pad is fixedly connected to the side of the connecting plate away from the T-shaped rod. Several support springs are fixedly connected to the side of the T-shaped rod near the connecting plate, and the other end of each support spring is fixedly connected to the T-shaped sliding cavity.

[0010] Preferably, the assembled blocking mechanism includes a telescopic airbag. A first support plate is fixedly connected to the upper end of the telescopic airbag, and a second support plate is fixedly connected to the lower end. The upper end of the first support plate has a recess, and a first sealing gasket is fixedly connected to the upper end of the first support plate. A second sealing gasket is fixedly connected to the lower end of the second support plate. The telescopic airbag, the first support plate, and the second support plate are slidably connected to the first mounting groove and the second mounting groove at both ends, respectively. Metal protective nets are provided on both sides of the telescopic airbag. One end of the metal protective net is fixedly connected to the first support plate, and the other end is fixedly connected to the second support plate. A first valve is fixedly installed on the outside of the telescopic airbag.

[0011] Preferably, the sandbag sealing mechanism includes a sealing sandbag, a third support plate is fixedly connected to the upper end of the sealing sandbag, a third sealing gasket is fixedly connected to the upper end of the third support plate, and the third support plate and the two ends of the sealing sandbag are respectively slidably connected in the first mounting groove and the second mounting groove.

[0012] Preferably, a clamping plate is installed on the upper end of each of the two first mounting columns, and the lower end of the clamping plate is fixedly connected to the upper end of the second mounting column. Several air guide pipes are fixedly connected to the outer side of both the first and second mounting columns. The air guide pipes are connected to the T-shaped sliding cavity, and a second valve is fixedly connected to the upper end of the air guide pipes.

[0013] Furthermore, to achieve the above objectives, the present invention also provides a cofferdam construction method for the cofferdam used in the above-described construction of a ship lock, comprising:

[0014] S1. Construct a template for pouring the main body of the cofferdam, set and fix the two first installation columns inside the template, and construct the main body of the cofferdam by layered pouring construction method to ensure that one end of the poured cofferdam main body is connected to the groove outside the lock. After the concrete solidifies, the first installation column is fixed and limited. Pour the base on the ground in the middle between the two cofferdam main bodies. After the pouring is completed, install the second installation column on the upper end of the base through the first screw.

[0015] S2. Place two sealing sandbags and the third support plate between the first and second mounting columns. Under the weight of the sealing sandbags, the sand inside makes the sandbags adhere to the ground. Inflate the telescopic airbags through the first valve. Place the first support plate, the telescopic airbags, and the two ends of the second support plate into the first and second mounting slots, respectively. The telescopic airbags move downwards under the weight of the first and second support plates. Inflate the remaining telescopic airbags and insert them between the first and second mounting columns.

[0016] S3. Install the clamping plate on the upper end of the first and second mounting columns, open the second valve to inflate the air pipe, and let the gas enter the T-shaped sliding cavity to push the T-shaped rod to move. The moving sealing pad tightly fits and presses against several telescopic airbags. Close the second valve and pump water into the space enclosed by the lock, the two cofferdams, and several telescopic airbags. After pumping water, carry out construction on the lock.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting two first installation mechanisms inside the main body of the cofferdam and setting a second installation mechanism between the two first installation mechanisms, the sandbag sealing mechanism is first installed between the first and second installation mechanisms, and then several assembled blocking mechanisms are installed between the first and second installation mechanisms to complete the support of the two main bodies of the cofferdam and seal the space between the two main bodies of the cofferdam. After the construction is completed, the assembled blocking mechanisms, sandbag sealing mechanisms and second installation mechanisms can be directly dismantled and lifted away. The assembled blocking mechanisms, sandbag sealing mechanisms and second installation mechanisms can still be used in the next construction, thereby reducing the waste of resources and the cost of construction. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention in connection with the lock.

[0019] Figure 2 This is a three-dimensional structural diagram of the installation position of the first valve in this invention;

[0020] Figure 3 This is a three-dimensional structural diagram illustrating the positional relationship between the first mounting post and the second mounting post of the present invention;

[0021] Figure 4 This is a three-dimensional structural diagram illustrating the positional relationship between the telescopic airbag and the metal protective netting of the present invention;

[0022] Figure 5 This is a three-dimensional structural diagram illustrating the connection relationship between the second mounting column and the base in this invention.

[0023] Figure 6 This is a three-dimensional structural diagram of the first mounting column of the present invention;

[0024] Figure 7 This is a three-dimensional sectional view of the first mounting column of the present invention;

[0025] Figure 8 This is a three-dimensional sectional view of the second mounting column of the present invention;

[0026] Figure 9 This is a three-dimensional structural diagram illustrating the positional relationship between the sealing pad and the telescopic airbag of the present invention.

[0027] Figure 10 This is a three-dimensional structural diagram showing the positional relationship between the telescopic airbag and the sealing sandbag of the present invention.

[0028] In the diagram: 1. Main body of the cofferdam; 2. Second mounting column; 3. Sealing sandbag; 4. Metal protective net; 5. First mounting column; 6. Air duct; 7. Second valve; 8. Pressure plate; 9. Lock; 10. First valve; 11. Base; 12. Telescopic airbag; 13. First support plate; 14. First sealing gasket; 15. Second support plate; 16. Second sealing gasket; 17. Sealing soft gasket; 18. T-shaped rod; 19. Support spring; 20. T-shaped sliding cavity; 21. Connecting plate; 22. First screw; 23. Second mounting groove; 24. Third sealing gasket; 25. Third support plate; 26. First mounting groove. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figures 1-10 The present invention provides a technical solution:

[0031] Example 1:

[0032] A cofferdam for lock construction includes a first installation mechanism, a second installation mechanism, two cofferdam bodies 1, and several assembled blocking mechanisms. The first installation mechanism is located inside the cofferdam body 1, the second installation mechanism is located between the two first installation mechanisms, and several assembled blocking mechanisms are installed between the second installation mechanism and the first installation mechanism. A sandbag sealing mechanism is provided at the lower end of the lowest assembled blocking mechanism, and the sandbag sealing mechanism is installed between the first installation mechanism and the second installation mechanism.

[0033] The sandbag sealing mechanism includes a sealing sandbag 3, which is made of elastic material and filled with sand. A third support plate 25 is fixedly connected to the upper end of the sealing sandbag 3, and a third sealing gasket 24 is fixedly connected to the upper end of the third support plate 25. The third support plate 25 and the two ends of the sealing sandbag 3 are respectively slidably connected in the first mounting groove 26 and the second mounting groove 23. By installing the sandbag sealing mechanism and several assembled blocking mechanisms between the first mounting mechanism and the second mounting mechanism, the support of the two cofferdam bodies 1 is completed, and the gap between the two cofferdam bodies 1 is sealed at the same time.

[0034] Example 2:

[0035] Based on Embodiment 1, in order to prevent debris from the water source from impacting the telescopic airbag 12 and causing damage to the telescopic airbag 12, the first installation mechanism includes a first installation column 5, which is fixedly connected to one side of the cofferdam body 1. A first installation groove 26 is provided on one side of the first installation column 5, and two T-shaped sliding cavities 20 are provided in the first installation groove 26. Clamping and sealing components are slidably connected in the T-shaped sliding cavities 20. The second installation mechanism includes a second installation column 2. The first installation column 5 and the second installation column 2 are prefabricated stainless steel metal columns for use, which facilitates the reuse of the first installation column 5 and the second installation column 2. Two second installation grooves 23 are provided on both sides of the second installation column 2.

[0036] The second mounting groove 23 also has two T-shaped sliding cavities 20, and the T-shaped sliding cavities 20 are also slidably fitted with clamping sealing components. The lower end of the second mounting column 2 is connected to the base 11 through several first screws 22. When the cofferdam body 1 is poured and constructed, the two first mounting columns 5 are placed on the opposite sides of the two cofferdam bodies 1. After the concrete solidifies, the first mounting columns 5 are fixed and limited. The base 11 is poured on the ground in the middle between the two cofferdam bodies 1. After the pouring is completed, the second mounting column 2 is installed on the upper end of the base 11 through the first screws 22.

[0037] The clamping and sealing assembly includes a T-shaped rod 18, which slides within a T-shaped sliding cavity 20. The T-shaped rod 18 and the T-shaped sliding cavity 20 are tightly fitted to prevent water from entering the T-shaped sliding cavity 20. A connecting plate 21 is fixedly connected to one side of the T-shaped rod 18. A sealing gasket 17 is fixedly connected to the side of the connecting plate 21 away from the T-shaped rod 18. Several support springs 19 are fixedly connected to the side of the T-shaped rod 18 near the connecting plate 21. The other end of the support springs 19 is fixedly connected to the T-shaped sliding cavity 20. The support springs 19 are made of stainless steel.

[0038] The assembled blocking mechanism includes a telescopic airbag 12. The thickness of the telescopic airbag 12 after inflation fits into the first mounting groove 26 and the second mounting groove 23. A first support plate 13 is fixedly connected to the upper end of the telescopic airbag 12, and a second support plate 15 is fixedly connected to the lower end. The weight of the first support plate 13 and the second support plate 15 should be increased during use to ensure that the telescopic airbag 12 can move downward under the gravity of the first support plate 13 and the second support plate 15. A recess is provided at the upper end of the first support plate 13, and a first sealing gasket 14 is fixedly connected to the upper end of the first support plate 13. A second sealing gasket 16 is fixedly connected to the lower end of the second support plate 15. The telescopic airbag 12, the first support plate 13, and the second support plate 15 are slidably connected to the first mounting groove 26 and the second mounting groove 23 at both ends, respectively. The width of the first support plate 13, the second support plate 15, the first sealing gasket 14, and the second sealing gasket 16 is equal to the width of the first mounting groove 26 and the second mounting groove 23.

[0039] Both sides of the telescopic airbag 12 are provided with metal protective nets 4. The metal protective nets 4 are fully foldable metal nets. This design allows the metal protective nets 4 to fold along with the telescopic airbag 12. The metal protective nets 4 are made of stainless steel. The metal protective nets 4 prevent debris in the water source from hitting the surface of the telescopic airbag 12 and causing damage to the telescopic airbag 12. One end of the metal protective net 4 is fixedly connected to the first support plate 13, and the other end is fixedly connected to the second support plate 15. A first valve 10 is fixedly installed on the outside of the telescopic airbag 12. A pressure plate 8 is installed on the upper end of each of the two first mounting columns 5. The lower end of the pressure plate 8 is also fixedly connected to the upper end of the second mounting column 2. Several air guide pipes 6 are fixedly connected to the outside of the first mounting column 5 and the second mounting column 2. The air guide pipes 6 are connected to the T-shaped sliding cavity 20. A second valve 7 is fixedly connected to the upper end of the air guide pipe 6.

[0040] Furthermore, to achieve the above objectives, the present invention also provides a cofferdam construction method for the aforementioned cofferdam used in lock construction, comprising:

[0041] S1. Construct a template for pouring the main body 1 of the cofferdam, set two first installation columns 5 inside the template and fix them, and construct the main body 1 of the cofferdam by layered pouring construction method to ensure that one end of the poured cofferdam main body 1 is connected to the groove on the outside of the lock 9. After the concrete solidifies, the first installation columns 5 are fixed and limited. Pour the base 11 on the ground in the middle between the two cofferdam main bodies 1. After the pouring is completed, install the second installation column 2 on the upper end of the base 11 through the first screw 22.

[0042] S2. Place two sealing sandbags 3 and the third support plate 25 between the first mounting post 5 and the second mounting post 2. Under the gravity of the sealing sandbags 3, the sand inside the sealing sandbags 3 causes the sealing sandbags 3 to adhere to the ground. Inflate the telescopic airbags 12 through the first valve 10. Place the first support plate 13, the telescopic airbags 12, and the two ends of the second support plate 15 into the first mounting groove 26 and the second mounting groove 23, respectively. The telescopic airbags 12 move downward under the gravity of the first support plate 13 and the second support plate 15. After inflating the other telescopic airbags 12, insert them between the first mounting post 5 and the second mounting post 2.

[0043] S3. Install the clamping plate 8 on the upper end of the first mounting column 5 and the second mounting column 2, open the second valve 7 to inflate the air pipe 6, and the gas enters the T-shaped sliding cavity 20 to push the T-shaped rod 18 to move. The moving sealing soft pad 17 is tightly pressed against several telescopic airbags 12. Close the second valve 7 and pump water into the space enclosed by the lock 9, the two cofferdam bodies 1 and several telescopic airbags 12. After pumping water, carry out construction on the lock 9.

[0044] Working principle: During use, two cofferdam bodies 1 are built on the side of the lock 9 where construction is required. When constructing the cofferdam body 1, ensure that one end of the cofferdam body 1 is connected to the groove on the outside of the lock 9. At the same time, when pouring the cofferdam body 1, place two first mounting columns 5 on the opposite sides of the two cofferdam bodies 1. After the concrete solidifies, the first mounting columns 5 are fixed and limited. A base 11 is poured on the ground in the middle between the two cofferdam bodies 1. After the pouring is completed, the second mounting column 2 is installed on the upper end of the base 11 through the first screw 22.

[0045] Two sealing sandbags 3 and a third support plate 25 are placed between the first mounting post 5 and the second mounting post 2. Under the weight of the sealing sandbags 3, the third support plate 25 moves downward along the first mounting groove 26 and the second mounting groove 23. When the sealing sandbags 3 come into contact with the ground, they stop moving. The sand inside the sealing sandbags 3 allows them to adhere tightly to the ground. Gas can be injected into the telescopic airbag 12 through the first valve 10. After the telescopic airbag 12 has expanded, the first valve 10 is closed, and the first support plate is... 13. The telescopic airbag 12 and the two ends of the second support plate 15 are respectively placed into the first mounting groove 26 and the second mounting groove 23. At this time, the telescopic airbag 12 will move downward under the gravity of the first support plate 13 and the second support plate 15. When the second sealing gasket 16 enters the third sealing gasket 24, the telescopic airbag 12 stops moving. After the remaining telescopic airbag 12 is inflated, it is installed between the first mounting post 5 and the second mounting post 2, so that the second sealing gasket 16 at the lower end of the upper telescopic airbag 12 enters the first sealing gasket 14.

[0046] After all the telescopic airbags 12 are installed, the corresponding number of clamping plates 8 are installed on the upper ends of the first mounting column 5 and the second mounting column 2 to clamp the telescopic airbags 12, so that the second sealing gasket 16 and the first sealing gasket 14 are tightly fitted together. Open the second valve 7 to inflate the air pipe 6. After the gas enters the T-shaped sliding cavity 20, it will push the T-shaped rod 18 to move. The movement of the T-shaped rod 18 will drive the connecting plate 21 and the sealing soft gasket 17 to move. The moving sealing soft gasket 17 is tightly fitted and pressed with the telescopic airbags 12 to prevent water from seeping in through the gaps between the first mounting groove 26 and the second mounting groove 23 due to installation deviation. After all the clamping is completed, close the second valve 7. At this time, water can be pumped out of the space enclosed by the lock 9, the two cofferdam bodies 1 and the telescopic airbags 12. After the water is pumped out, the lock 9 can be constructed.

[0047] After construction is completed, the clamping plate 8 can be removed, and several telescopic airbags 12 can be lifted out in sequence. After deflating the telescopic airbags 12, the volume of the telescopic airbags 12 can be reduced, making them easier to transport. The remaining cofferdam body 1 can be directly converted into the entrance and exit extension of the lock 9 after simple processing.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cofferdam for lock construction, characterized in that: The system includes a first installation mechanism, a second installation mechanism, two main cofferdam bodies, and several assembled blocking mechanisms. The first installation mechanism is located inside the main cofferdam body, the second installation mechanism is located between the two first installation mechanisms, and several assembled blocking mechanisms are installed between the second installation mechanism and the first installation mechanism. A sandbag sealing mechanism is installed at the lower end of the lowest assembled blocking mechanism. The sandbag sealing mechanism is installed between the first installation mechanism and the second installation mechanism. By installing the sandbag sealing mechanism and several assembled blocking mechanisms between the first installation mechanism and the second installation mechanism, the system supports the two main cofferdam bodies and simultaneously seals the space between the two main cofferdam bodies. The first installation mechanism includes a first installation column, which is fixedly connected to one side of the cofferdam body. A first installation groove is provided on one side of the first installation column, and two T-shaped sliding cavities are provided in the first installation groove. Clamping and sealing components are slidably connected in the T-shaped sliding cavities. The second mounting mechanism includes a second mounting post, with two second mounting grooves on both sides of the second mounting post. Two T-shaped sliding cavities are also formed in the second mounting grooves, and clamping and sealing components are also slidably connected in the T-shaped sliding cavities. The lower end of the second mounting post is connected to the base through several first screws. The assembled blocking mechanism includes a telescopic airbag. A first support plate is fixedly connected to the upper end of the telescopic airbag, and a second support plate is fixedly connected to the lower end. The upper end of the first support plate has a recess, and a first sealing gasket is fixedly connected to the upper end of the first support plate. A second sealing gasket is fixedly connected to the lower end of the second support plate. The telescopic airbag, the first support plate, and the second support plate are slidably connected to the first mounting groove and the second mounting groove at both ends, respectively. Metal protective nets are provided on both sides of the telescopic airbag. One end of the metal protective net is fixedly connected to the first support plate, and the other end is fixedly connected to the second support plate. A first valve is fixedly installed on the outside of the telescopic airbag.

2. The cofferdam for lock construction according to claim 1, characterized in that: The clamping and sealing assembly includes a T-shaped rod that slides within a T-shaped sliding cavity. A connecting plate is fixedly connected to one side of the T-shaped rod, and a sealing pad is fixedly connected to the side of the connecting plate away from the T-shaped rod. Several support springs are fixedly connected to the side of the T-shaped rod near the connecting plate, and the other end of each support spring is fixedly connected to the T-shaped sliding cavity.

3. A cofferdam for lock construction according to claim 1, characterized in that: The sandbag sealing mechanism includes a sealing sandbag, a third support plate is fixedly connected to the upper end of the sealing sandbag, a third sealing gasket is fixedly connected to the upper end of the third support plate, and the third support plate and the two ends of the sealing sandbag are respectively slidably connected in the first mounting groove and the second mounting groove.

4. A cofferdam for lock construction according to claim 1, characterized in that: Both of the first mounting columns are equipped with clamping plates at their upper ends. The lower ends of the clamping plates are also fixedly connected to the upper ends of the second mounting columns. Several air guide pipes are fixedly connected to the outer sides of both the first and second mounting columns. The air guide pipes are connected to the T-shaped sliding cavity. A second valve is fixedly connected to the upper end of the air guide pipes.

5. A method for constructing a cofferdam, used for the cofferdam for lock construction as described in any one of claims 1-4, characterized in that, include: S1. Construct a template for pouring the main body of the cofferdam, set and fix the two first installation columns inside the template, and construct the main body of the cofferdam by layered pouring construction method to ensure that one end of the poured cofferdam main body is connected to the groove outside the lock. After the concrete solidifies, the first installation column is fixed and limited. Pour the base on the ground in the middle between the two cofferdam main bodies. After the pouring is completed, install the second installation column on the upper end of the base through the first screw. S3. Place two sealing sandbags and a third support plate between the first and second mounting columns. Under the gravity of the sealing sandbags, the sand inside the sandbags causes them to adhere to the ground. Inflate the telescopic airbag through the first valve. Place the first support plate, the telescopic airbag, and both ends of the second support plate into the first and second mounting slots, respectively. The telescopic airbag moves downward under the gravity of the first and second support plates. After inflation, the telescopic airbag is inserted between the first and second mounting columns. S3. Install the clamping plate on the upper end of the first and second mounting columns, open the second valve to inflate the air pipe, and let the gas enter the T-shaped sliding cavity to push the T-shaped rod to move. The moving sealing pad tightly fits and presses against several telescopic airbags. Close the second valve and pump water into the space enclosed by the lock, the two cofferdams, and several telescopic airbags. After pumping water, carry out construction on the lock.

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