Caisson type flashboard for blocking water inlet and sinking and floating method of caisson type flashboard

Abstract

The invention relates to a caisson type flashboard for water inlet plugging and a sinking and floating method thereof, and relates to the technical field of water inlet plugging in hydraulic engineering, and the caisson type flashboard comprises a flashboard body, a partition plate, a reinforcing part, a water filling assembly, a drainage assembly and a hoisting part. The flashboard body is of a closed cavity structure, the partition plates are fixedly installed in the flashboard body and divide the interior of the flashboard body into a first box, a second box and a third box, and the reinforcing pieces are installed in the flashboard body and used for reinforcing the structural stability of the flashboard body. The water filling assembly is installed on the flashboard body and used for filling water into the flashboard body. The drainage assembly is installed in the flashboard body and used for draining water in the flashboard body. The hoisting part is installed on the gate plate body and used for hoisting the gate plate body. The water inlet tower has the effects of improving the plugging efficiency of the water inlet tower and reducing the plugging cost.

Description

Technical Field

[0001] The present application relates to the technical field of water inlet plugging in water conservancy projects, and in particular to a caisson-type gate plate for water inlet plugging and a sinking and floating method thereof. Background Art

[0002] The reservoir hub building consists of a dam, spillway and flood discharge and sand drainage bottom tunnel. The water intake tower is located upstream of the flood discharge and sand drainage bottom tunnel and is the throat of the flood discharge and sand drainage bottom tunnel. During the reservoir hazard prevention and reinforcement project, a set of maintenance gates and opening and closing equipment are added to the water intake tower to prevent the working gates of the water intake tower from malfunctioning and there are no maintenance conditions, which would endanger the safety of the dam.

[0003] Traditional reservoir construction and maintenance methods often require the water in the reservoir to be discharged in order to carry out necessary repair work. However, due to factors such as fish farming in the reservoir area or small upstream water flow in some reservoirs, the reservoir is not in a condition to release water. When building gates on built reservoirs or dams that are not in a condition to release water, the existing technology usually uses earth-rock cofferdams or steel sheet pile enclosures to separate the water in the reservoir area from the water intake tower for gate construction. Earth-rock cofferdams require a large amount of earth and stone materials and have a long construction period, while steel sheet pile enclosures require special piling equipment and technical support, with high construction complexity, and also face the problems of long construction period and high cost.

[0004] With regard to the above-mentioned related technologies, the existing earth-rock cofferdam and steel sheet pile containment methods have problems such as large construction volume and long construction time during the construction process, which leads to a significant increase in construction costs and affects the smooth progress of reservoir maintenance work. Therefore, efficiently and economically achieving the sealing of the reservoir water intake tower has become a technical problem that needs to be solved urgently. Summary of the invention

[0005] In order to improve the plugging efficiency of the water intake tower and reduce the construction time, the present application provides a caisson-type gate for plugging a water inlet and a sinking and floating method thereof.

[0006] On the one hand, the present application provides a caisson-type gate for water inlet plugging, which adopts the following technical solution: A caisson-type gate for water inlet plugging, comprising: A gate body, wherein the gate body is hollow inside; A partition, the partition is fixedly installed inside the gate body, the partition is a T-shaped structure, and the partition divides the inside of the gate body into box one, box two and box three, box one is located at the top of the gate body, and box two and box three are both located at the bottom of the gate body; A reinforcement member, wherein the reinforcement member is installed inside the gate body and is used to enhance the structural stability of the gate body; A water filling component, the water filling component is installed on the gate body, and the water filling component is used to fill water into the gate body; A drainage assembly, the drainage assembly is installed in the gate body, and the drainage assembly is used to drain the water inside the gate body; A lifting piece is installed on the gate body, and the lifting piece is used to lift the gate body.

[0007] By adopting the above technical solution, the gate body and the reinforcement installed inside make the gate body have sufficient strength and rigidity to withstand the impact of water flow and ensure the reliability and safety of plugging. The partition divides the gate body into three independent spaces, which is convenient for controlling the independent filling and drainage operations in various places inside the gate body. During the sinking process of the gate, the water filling component can quickly fill the gate body with water to increase the deadweight of the gate, so as to achieve the sinking and stability of the gate body in the water, reducing the construction time and difficulty. During the disassembly and floating process of the gate, the drainage component discharges the water in the gate body, reduces the weight of the caisson gate for plugging, and facilitates the lifting equipment to lift it out of the water. During the lifting, the use of lifting parts makes the lifting operation of the gate more convenient. In summary, this design improves the plugging efficiency and saves construction time.

[0008] Optionally, the water filling component includes: Three water filling pipes, the three water filling pipes are fixedly mounted on the gate body, one ends of the three water filling pipes are connected and arranged on box one, box two and box three respectively, and the other ends of the three water filling pipes are connected to the outside; A water filling valve, wherein the number of the water filling valves corresponds to the number of the water filling pipes, the water filling valves are arranged on the water filling pipes, and the water filling valves are arranged outside the gate body; Three ventilation pipes, the three ventilation pipes are fixedly mounted on the gate body, one ends of the three ventilation pipes are connected and arranged on box one, box two and box three respectively, and the other ends of the three ventilation pipes are passed through the gate body and connected with the outside; A vent valve, the vent valve corresponds to the vent pipe in number, the vent valve is arranged on the vent pipe, and the vent valve is arranged outside the gate body.

[0009] By adopting the above technical solution, it is possible to achieve water filling and precise control inside the gate body. When filling water into the gate, three independent water filling pipes allow water to be filled into box one, box two and box three respectively according to demand. The water filling valve corresponds to the water filling pipe one by one, which is convenient for controlling the water filling time and water filling amount separately. During the water filling process, the air in the gate body needs to be discharged through the vent pipe to prevent the air in the cavity from forming air blockage, hindering the normal injection of water, resulting in unsmooth water filling, and even making the caisson-type gate for plugging unable to sink normally. The three vent pipes are equipped with vent valves, which cooperate with the water filling valve to accurately control the flushing volume, so that the caisson-type gate for plugging sinks according to the predetermined plan for plugging.

[0010] Optionally, the drainage component includes: Three water pumps, the three water pumps are fixedly installed in box one, box two and box three respectively; Inlet pipes, the number of the inlet pipes corresponds to the number of the water pumps, the inlet pipes are fixedly mounted on the gate body, one end of the inlet pipe is connected to the water pump, and the other end of the inlet pipe passes through the gate body and is connected to the outside; Drain pipes, the number of which corresponds to the number of the water pumps, the drain pipes are fixedly mounted on the gate body, one end of the drain pipe is connected to the water pump, and the other end of the drain pipe passes through the gate body and is connected to the outside; A drainage valve, wherein the number of the drainage valves corresponds to the number of the drainage pipes, the drainage valve is arranged on the drainage pipe, and the drainage valve is arranged outside the gate body.

[0011] By adopting the above technical solution, the water accumulated inside the gate body can be effectively drained quickly, which is convenient for removing and disassembling the gate body. The three water pumps are installed in box one, box two and box three respectively, and are all connected to the drainage pipes. The drainage pipes are provided with drainage valves, which realize the independent drainage of different areas in the gate body according to the drainage requirements, and enhance the controllability of the drainage process. At the same time, independent drainage is also conducive to better adjusting the posture of the gate during the drainage process, so that it can remain stable in the process of reducing weight. The setting of the inlet pipe makes it more convenient and safe to connect the water pump to the external power supply, and improves the stability and reliability of the system.

[0012] Optionally, the reinforcement member includes: A plurality of I-beams, wherein the plurality of I-beams are fixedly mounted inside the second box and the third box of the gate body; A plurality of channel steels are fixedly installed inside box one of the gate body.

[0013] By adopting the above technical scheme, both I-beams and channel steels have high strength and bearing capacity, forming a solid skeleton structure inside the gate body, which can effectively withstand various external forces, such as the impact force of water flow, the pressure generated by water pressure and the gate body's own gravity, etc., significantly enhancing the structural stability and strength of the gate body, ensuring that the gate body can be stably sealed in a complex underwater environment.

[0014] Optionally, the lifting member is a lifting ring, and a plurality of the lifting rings are provided. The plurality of lifting rings are arranged at intervals, and the plurality of lifting rings are fixedly mounted on the top outer wall of the gate body.

[0015] By adopting the above technical solution, the lifting device can be connected to multiple lifting rings at the same time during the lifting process, thereby improving the safety and reliability of the lifting. At the same time, multi-point lifting also facilitates the adjustment of the position of the gate body, and more flexibly adjusts the angle and posture of the gate body, so that it can reach the predetermined installation position more accurately, thereby improving construction efficiency.

[0016] Optionally, a plurality of water pipes are provided on the gate body, and the water pipes are used to balance the water levels on both sides of the gate body when the gate is removed, and water valves are provided on the water pipes.

[0017] By adopting the above technical solution, when dismantling the device, if there is a large water level difference on both sides of the gate body, a huge pressure difference will be generated on the gate body, which may cause the gate body to be subjected to unbalanced force during the dismantling process, resulting in uncontrollable movement of the gate body, and may even cause serious safety accidents such as the gate body rushing out, hitting surrounding equipment or injuring personnel. After balancing the water level with a water pipe, the pressure difference is eliminated or significantly reduced, so that the gate body is in a relatively balanced force state during dismantling, and the operator can perform the dismantling operation more safely and smoothly, reducing the risks that may occur during the dismantling process.

[0018] Optionally, a blocking block is fixedly installed at the pipe opening at one end of the inlet pipe away from the water pump, and the blocking block is used to seal the interior of the gate body.

[0019] By adopting the above technical solution, the setting of the blocking block can effectively prevent external water from entering the gate body, ensure that the inside of the inlet pipe remains dry, avoid water entering and affecting the normal operation of the water pump, and improve the safety of the device.

[0020] Optionally, a connecting pipe is fixedly installed on the partition between box two and box three, and both ends of the connecting pipe are respectively connected to box two and box three. The connecting pipe is arranged at the bottom of box two and box three, and a connecting valve is arranged on the connecting pipe.

[0021] By adopting the above technical solution, a connecting pipe is arranged on the partition to realize the connection between box two and box three on both sides of the partition. When the water inlet valve or water pump on one side fails, the valve on the connecting pipe can be opened to connect box two and box three to drain the water on the faulty side, thereby improving the flexibility of the gate body when draining water.

[0022] On the other hand, the present application provides a method for sinking and floating a caisson-type gate plate for water inlet plugging, which adopts the following technical solution: A method for sinking and floating a caisson-type gate plate for plugging a water inlet comprises the following steps: S1 Preparation: clean up the silt near the underwater plugging and measure the plugging size; S2 gate processing: the gate is processed according to the measured dimensions, and the processed gate is subjected to a closed air test to check whether the sealing is intact; S3 gate transportation: The crane lifts the gate body to the water surface at the blocking location through the lifting parts, and then the water filling assembly fills the second and third boxes with water, and then adjusts the gate body to a vertical state and lowers the gate body; S4 gate installation: fix the gate body at the blocking position, fill the inside of box 1 with water, and apply vertical pressure to increase the stability of the gate body; S5 Sealing treatment: Fill the gaps around the gate body and the sealing area; S6 gate disassembly: Close all water filling valves, open the water valve, ensure that the water levels on both sides of the gate body are the same and the pressure is balanced, then start the water pump, open the drain valve, drain the water in the gate body, remove the fixing materials and caulking materials on the gate body, and lift the gate body out of the water through the lifting device to complete the disassembly of the gate body.

[0023] By adopting the above technical scheme, the water inlet is sealed with a gate plate, and the water filling assembly is used to fill water into the gate plate body so that the gate plate body is submerged in water. The gate plate is fixed with anchor bars, I-beams, anchor glue and other materials to ensure that the sealing is firm. Before sealing, the silt near the water inlet tower is cleaned and the gate plate processing size is accurately measured to ensure that the gate plate and the sealing port size are compatible to avoid sealing failure caused by size error. After the gate plate body is processed, the sealing of the gate plate is tested through a closed air test to ensure the reliability and safety of the gate plate in actual application. After the sealing is completed, the gaps around the gate plate and the water inlet are caulked to ensure that the gate plate completely seals the water inlet to prevent water leakage, which can effectively improve the sealing efficiency of the water inlet tower.

[0024] After the inspection is completed, the water level on both sides of the gate is balanced by opening the water valve to facilitate the removal of the fixing device and simplify the disassembly process. The water pump is started to drain the water in the gate body, so that the gate body gradually floats to the surface, which is convenient for lifting by the lifting device and realizing rapid disassembly. The above scheme not only improves the sealing efficiency, but also reduces the construction time.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. By setting up water filling components and drainage components, the weight and buoyancy of the gate body can be precisely controlled. During installation, the water filling component fills water into the gate body to make it sink to the blocking position. It can accurately control the sinking speed and posture according to the actual working conditions, adapt to different water flow environments, and improve the blocking accuracy. When the water level changes or the position of the gate body needs to be adjusted, the drainage component can drain the accumulated water to make the gate body float, thereby improving the blocking efficiency; 2. The structural strength and stability of the gate body are significantly improved by setting the reinforcement. The reinforcement forms a solid skeleton inside the gate body, effectively dispersing the external water pressure, water flow impact and its own gravity, preventing the gate body from deformation and damage, extending the service life of the gate body, reducing the maintenance frequency and reducing the maintenance cost; 3. By setting up lifting parts, a convenient and safe way is provided for the installation, disassembly and movement of the gate plate, which improves the convenience and efficiency of operation, reduces manpower input, and ensures the smooth progress of the construction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a caisson-type gate for plugging a water inlet according to an embodiment of the present application; Figure 2 is a cross-sectional view of a caisson-type gate for plugging a water inlet according to an embodiment of the present application; Figure 3 This is an embodiment of the present application Figure 1 A local enlarged view of point A; Figure 4 This is an embodiment of the present application Figure 3 A partial enlarged view of point B; Figure 5 This is an embodiment of the present application Figure 3 A partial enlarged view of point C.

[0027] Description of reference numerals: 1. Gate body; 2. Partition; 3. Reinforcement; 31. I-beam; 32. Channel steel; 4. Water filling assembly; 41. Water filling pipe; 42. Water filling valve; 43. Vent pipe; 44. Vent valve; 5. Drainage assembly; 51. Water pump; 52. Inlet pipe; 53. Drainage pipe; 54. Drainage valve; 6. Lifting piece; 61. Lifting ring; 7. Water pipe; 71. Water valve; 8. Block; 9. Connecting pipe; 91. Connecting valve. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0031] The following is combined with Figure 1-5 This application is described in further detail.

[0032] The embodiment of the present application discloses a caisson-type gate for sealing a water inlet.

[0033] Reference Figure 1 and Figure 2 The caisson gate for water inlet plugging comprises a gate body 1, a partition 2, a reinforcement 3, a water filling component 4, a drainage component 5 and a lifting component 6. The gate body 1 is a closed cavity structure, the partition 2 is fixedly installed inside the gate body 1, and the partition 2 divides the inside of the gate body 1 into box one, box two and box three, the reinforcement 3 is installed inside the gate body 1, and the reinforcement 3 is used to enhance the structural stability of the gate body 1; the water filling component 4 is installed on the gate body 1, and the water filling component 4 is used to fill the inside of the gate body 1 with water; the drainage component 5 is installed in the gate body 1, and the drainage component 5 is used to discharge the water inside the gate body 1; the lifting component 6 is installed on the gate body 1, and the lifting component 6 is used to lift the gate body 1.

[0034] When in use, the gate body 1 is subjected to a strict air-tightness test, and a certain pressure of gas is filled into it to observe whether the gas pressure drops within a period of time, so as to check whether the sealing of the gate body 1 is intact. The gate body 1 is lifted to the water surface above the blocking position by a crane through the lifting part 6, and the water filling component 4 is started to fill water into the second and third boxes so that they gradually stand upright and sink under the action of gravity. During the sinking process, the operator closely observes the posture and position of the gate body 1 to ensure that the gate body 1 sinks accurately to the blocking position and is fixed.

[0035] When the construction of the inspection gate of the water intake tower is completed, the gate body 1 is disassembled, the water pump 51 in the drainage assembly 5 is started, the water in the gate body 1 is drained, and the lifting device is used again to smoothly lift the gate body 1 out of the water surface through the lifting part 6 to complete the disassembly operation of the gate body 1 and achieve efficient blocking of the water intake tower.

[0036] Reference Figure 2 The gate body 1 is welded into a closed cavity structure by steel plates, and the interior of the gate body 1 is divided into box one, box two and box three by a partition 2. Box one is at the top of the gate body 1, and box two and box three are below the gate body 1. Box two and box three are thicker. In order to accommodate more water, the inside of the gate body 1 is made of I-beams 31 and channel steels 32 as a skeleton. In this embodiment, the installation positions of the I-beams 31 and channel steels 32 are not specifically limited. Under the condition that the filling and drainage process of the gate body 1 is not affected, the structure of the gate body 1 can be made more stable.

[0037] Reference Figure 1 The lifting part 6 is a lifting ring 61, and a plurality of lifting rings 61 are provided. The plurality of lifting rings 61 are fixedly mounted on the top outer wall of the gate body 1. The hook of the crane is connected to the plurality of lifting rings 61 on the top outer wall of the gate body 1, and the gate body 1 is slowly lifted to a suitable position above the water surface at the blocking location. When lifting, installing or disassembling is performed by a single lifting ring 61, the balance of the gate body 1 needs to be controlled by the water filling and drainage of boxes two and three.

[0038] Reference Figure 1 , Figure 3 and Figure 4 The water filling assembly 4 includes three water filling pipes 41, a water filling valve 42, three vent pipes 43 and a vent valve 44. The three water filling pipes 41 are fixedly mounted on the gate body 1, one end of the three water filling pipes 41 is connected and arranged on the box 1, box 2 and box 3 respectively, and the other end of the three water filling pipes 41 is passed through the top wall of the gate body 1 upwards to communicate with the outside world. The number of water filling valves 42 and water filling pipes 41 corresponds one to one. The water filling valves 42 are arranged on the water filling pipes 41, and the water filling valves 42 are arranged outside the gate body 1, so as to facilitate the operator to open and close.

[0039] The three ventilation pipes 43 are all fixedly installed on the gate body 1, and one ends of the three ventilation pipes 43 are respectively connected to box one, box two and box three, and the other ends of the three ventilation pipes 43 pass through the top of the gate body 1 to communicate with the outside world. The ventilation valves 44 correspond to the number of ventilation pipes 43. The ventilation valves 44 are set on the ventilation pipes 43, and the ventilation valves 44 are set outside the gate body 1 to facilitate the operator to open and close.

[0040] When in use, after the gate body 1 is lifted to the water surface above the blockage through the lifting ring 61, the water filling valve 42 on the box two and the box three is opened, and water is started to be injected into the box two and the box three through the water filling pipe 41. The operator closely observes the sinking speed and posture of the gate body 1. If the gate body 1 sinks too fast, it may cause inaccurate sinking position or collision with surrounding structures. The water filling valve 42 can be appropriately closed to slow down the water filling speed. If the gate body 1 is tilted, the water filling speed of the corresponding side can be fine-tuned through the water filling valve 42 to correct the tilt and ensure that the gate body 1 remains upright and sinks. During the water filling process, the vent valve 44 is opened so that the air in the box two and the box three can be discharged smoothly through the vent pipe 43 to avoid affecting the water filling effect due to the inability to discharge the air in the box two and the box three. After the installation and reinforcement of the gate body 1 is completed, the water filling valve 42 is opened to fill the inside of the gate body 1 with water to increase its deadweight, so that the fixing of the gate body 1 is more stable.

[0041] Reference Figure 2 and Figure 4 The drainage assembly 5 includes three water pumps 51, an inlet pipe 52, a drainage pipe 53 and a drainage valve 54. The three water pumps 51 are respectively arranged in the box 1, the box 2 and the box 3 and fixedly installed at the bottom of the box 1, the box 2 and the box 3. The inlet pipes 52 correspond to the number of water pumps 51. The inlet pipes 52 are fixedly installed in the gate body 1. One end of the inlet pipe 52 is connected with the water pump 51, and the other end of the inlet pipe 52 passes through the upper end of the gate body 1 and is connected with the outside. A blocking block 8 is fixedly installed at the pipe mouth of one end of the inlet pipe 52 away from the water pump 51.

[0042] The number of drain pipes 53 corresponds to that of water pumps 51. The drain pipes 53 are fixedly installed on the gate body 1. One end of the drain pipe 53 is connected to the water pump 51. The other end of the drain pipe 53 passes through the top wall of the gate body 1 and is connected to the outside. The number of drain valves 54 corresponds to that of the drain pipes 53. The drain valves 54 are arranged on the drain pipes 53. The drain valves 54 are arranged outside the gate body 1.

[0043] When the gate plate needs to be disassembled after the water inlet blocking work is completed, the three water pumps 51 are started and the corresponding drain valves 54 are opened at the same time. The water in boxes one, two and three is discharged out of the gate plate body 1 through the drain pipe 53 under the action of the water pump 51, and then the gate plate body 1 is lifted out by a lifting device such as a loader to complete the disassembly and assembly. The blocking block 8 can effectively prevent external water from entering the inside of the gate plate body 1 through the inlet pipe 52, ensuring that the inside of the inlet pipe 52 remains dry, thereby improving the safety of the device.

[0044] Reference Figure 1 and Figure 3 , a plurality of water pipes 7 are provided on the gate body 1, and water valves 71 are provided on the water pipes 7. The number of water pipes 7 corresponds to the number of water valves 71, and the water pipes 7 penetrate the gate body 1. Before disassembling the gate body 1, the underwater staff opens the water valves 71. Under the action of pressure, water on both sides of the gate body 1 flows through the water pipes 7, and the water levels on both sides of the gate body 1 gradually balance relatively, so as to prevent the gate body 1 from being unevenly stressed due to the large difference in water pressure on both sides of the gate body 1 during the disassembly process of the gate body 1, causing the gate body 1 to move uncontrollably or rush out quickly, thereby causing a safety accident.

[0045] Reference Figure 5 A connecting pipe 9 is fixedly installed on the partition 2 between box two and box three. The two ends of the connecting pipe 9 are respectively connected to box two and box three. The connecting pipe 9 is arranged at the bottom of box two and box three, and a connecting valve 91 is arranged on the connecting pipe 9.

[0046] During the drainage process, if the water pump 51 or the drainage valve 54 on either side of box two or box three fails, the connecting valve 91 can be opened to allow the water on the failed side to flow into the other side through the connecting pipe 9, completing the drainage operation of the gate body 1 and improving the reliability of the device.

[0047] The implementation principle of the caisson-type gate for sealing the water inlet in the embodiment of the present application is as follows: the reinforcement 3 arranged inside the gate body 1 enhances the structural strength of the gate body 1, and can effectively resist the external water pressure and water flow impact. The inside of the gate body 1 is divided into box one, box two and box three by the partition 2, and the zoning design is the key to the sinking and floating control.

[0048] During the blocking process, water can be injected into various areas of the gate body 1 through the water filling component 4, and the water filling valve 42 can be controlled to adjust the water injection amount, thereby changing the weight of the gate. By controlling the water injection area, the underwater posture of the gate body 1 can be adjusted, so that the gate body 1 sinks according to the predetermined posture. When injecting water, the ventilation pipe 43 discharges the air in the gate body 1, so that the water filling process proceeds smoothly, and the gate body 1 that sinks to the blocking point is fixed at the blocking port, thereby realizing a safe, efficient and fast water inlet blocking operation.

[0049] During the disassembly process, the drainage assembly 5 can quickly drain the water in the gate body 1, change the buoyancy state of the gate body 1, and enable the gate body 1 to float with the assistance of the lifting device, thereby completing the blocking task of the gate body 1.

[0050] This embodiment provides a sinking and floating method based on a caisson-type gate for blocking a water inlet.

[0051] A method for sinking and floating a caisson-type gate plate for plugging a water inlet comprises the following steps: S1 Preparation: Underwater measurement of the water inlet structure size and the water inlet reservoir bottom topography upstream of the water inlet tower. The part above the silt surface is measured with a steel tape measure. The part below the silt surface and the bottom plate upstream of the water inlet are detected with a steel chisel, which is vertically inserted into the silt. After marking, the steel chisel is pulled out and measured; the silt is removed by underwater manual cleaning with a small machine, and a slurry pump and air bubbles can be used for cleaning at the same time. This embodiment is not specifically limited. All the silt within a range of not less than 10m upstream of the blocking gate is cleaned to prevent the silt from flowing into the blocking gate during the blocking period and affecting the lifting and removal of the gate; S2 gate processing: the gate body 1 is processed according to the measured dimensions. All connections between the gate bodies 1 are welded, and all welds are fully welded. The processed gate body 1 is subjected to a closed air test, pressurized to 0.2Mpa~0.3Mpa and kept constant for 2~3 hours, and the welds are checked for leaks. If there is no leak, it is qualified; S3 Gate transportation: Use a crane to lift the gate body 1 to the water surface at the blocking location through the lifting ring 61, open the water filling valves 42 on the second and third boxes, and fill water into the second and third boxes through the water filling pipe 41 to increase the weight of the bottom end of the gate body 1, so that the gate body 1 gradually stands upright in the water, and continue to fill water to make the gate body 1 stand upright in the water and gradually sink to the blocking location; S4 gate installation: underwater operators drill holes underwater on the side wall and bottom plate of the blocked water inlet, use anchor bars, I-beams 31, and anchor glue and other materials to support and fix the gate body 1. After the fixation is completed, all water filling valves 42 are opened to fill the gate body 1 with water, so that the gate body 1 is more stable due to gravity; S5 Sealing treatment: The gaps around the gate body 1 and the plugging are caulked. The caulking materials can be granite caulking, gel caulking, quilt caulking steel support, anti-filtration material filling, geomembrane covering, sandbag laying, etc. Different sizes of gaps or water leakage treatments require the selection of appropriate caulking methods. This embodiment does not make specific restrictions. It is sufficient to ensure that the gate body 1 completely blocks the water inlet at the plugging point, and the installation operation of the gate body 1 is completed; S6 Gate Disassembly: When the construction of the inspection gate of the water intake tower is completed, the gate body 1 disassembly work begins. The underwater staff closes all the water filling valves 42, opens the water valve 71, connects the front and back of the gate body 1, makes the water level on both sides of the gate body 1 the same, and the pressure is balanced; removes the fixing materials and caulking materials on the gate body 1, uses underwater cutting equipment to completely remove the anchor bars, supports, etc. that fix the gate body 1, releases the external fixation of the gate body 1, starts the water pump 51 in box one, opens the corresponding drainage valve 54 of box one, and the water is discharged from the drainage pipe 53 to empty the water in box one, then starts the water pumps 51 in boxes two and three, gradually empties the water, and opens the ventilation valve 44 to let air into the gate body 1 while emptying the water. After the drainage is completed, the gate body 1 is lifted out of the water by the lifting device.

[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A caisson-type gate for water inlet plugging, characterized in that: include: A gate body (1), wherein the gate body (1) is hollow inside; a partition (2), the partition (2) being fixedly mounted inside the gate body (1), the partition (2) being a T-shaped structure, the partition (2) dividing the inside of the gate body (1) into box one, box two and box three, box one being located at the top of the gate body (1), and box two and box three being both located at the bottom of the gate body (1); A reinforcing member (3), the reinforcing member (3) being installed inside the gate body (1), the reinforcing member (3) being used to enhance the structural stability of the gate body (1); A water filling component (4), the water filling component (4) being mounted on the gate body (1), the water filling component (4) being used to fill water into the gate body (1); A drainage component (5), the drainage component (5) being installed in the gate body (1), and the drainage component (5) being used to drain water inside the gate body (1); A lifting member (6), wherein the lifting member (6) is mounted on the gate body (1), and the lifting member (6) is used to lift the gate body (1).

2. The caisson-type gate for water inlet plugging according to claim 1 is characterized in that: The water filling component (4) comprises: Three water filling pipes (41), the three water filling pipes (41) are all fixedly mounted on the gate body (1), one ends of the three water filling pipes (41) are respectively connected and arranged on box one, box two and box three, and the other ends of the three water filling pipes (41) are all connected to the outside; water filling valves (42), the number of the water filling valves (42) and the number of the water filling pipes (41) corresponding to each other, the water filling valves (42) being arranged on the water filling pipes (41), and the water filling valves (42) being arranged outside the gate body (1); three ventilation pipes (43), the three ventilation pipes (43) are all fixedly mounted on the gate body (1), one ends of the three ventilation pipes (43) are respectively connected and arranged on box one, box two and box three, and the other ends of the three ventilation pipes (43) are all passed through the gate body (1) to communicate with the outside; A vent valve (44), wherein the number of the vent valve (44) corresponds to the number of the vent pipe (43), the vent valve (44) is arranged on the vent pipe (43), and the vent valve (44) is arranged outside the gate body (1).

3. The caisson-type gate for water inlet plugging according to claim 2, characterized in that: The drainage component (5) comprises: Three water pumps (51), the three water pumps (51) being fixedly installed in box one, box two and box three respectively; an inlet pipe (52), the number of the inlet pipes (52) corresponding to the number of the water pumps (51), the inlet pipes (52) being fixedly mounted on the gate body (1), one end of the inlet pipe (52) being in communication with the water pump (51), and the other end of the inlet pipe (52) passing through the gate body (1) to be in communication with the outside; a drainage pipe (53), wherein the number of the drainage pipes (53) corresponds to the number of the water pumps (51), the drainage pipes (53) are fixedly mounted on the gate body (1), one end of the drainage pipe (53) is in communication with the water pump (51), and the other end of the drainage pipe (53) passes through the gate body (1) and is in communication with the outside; Drain valves (54), the number of the drain valves (54) and the number of the drain pipes (53) correspond one to one, the drain valves (54) are arranged on the drain pipes (53), and the drain valves (54) are arranged outside the gate body (1).

4. The caisson-type gate for water inlet plugging according to claim 3 is characterized in that: The reinforcement member (3) comprises: A plurality of I-beams (31), wherein the plurality of I-beams (31) are fixedly mounted inside box two and box three of the gate body (1); A plurality of channel steels (32), wherein the plurality of channel steels (32) are all fixedly mounted inside box 1 of the gate body (1).

5. The caisson-type gate for water inlet plugging according to claim 4, characterized in that: The lifting member (6) is a lifting ring (61), and a plurality of the lifting rings (61) are provided. The plurality of lifting rings (61) are arranged at intervals, and the plurality of lifting rings (61) are all fixedly mounted on the top outer wall of the gate body (1).

6. The caisson-type gate for water inlet plugging according to claim 5, characterized in that: A plurality of water pipes (7) are provided on the gate body (1). The water pipes (7) are used to balance the water levels on both sides of the gate body (1) when the gate body (1) is removed. The water pipes (7) are provided with water valves (71).

7. The caisson-type gate for water inlet plugging according to claim 6, characterized in that: A blocking block (8) is fixedly mounted at the pipe opening of one end of the inlet pipe (52) away from the water pump (51), and the blocking block (8) is used to seal the interior of the gate body (1).

8. The caisson-type gate for water inlet plugging according to claim 7, characterized in that: A connecting pipe (9) is fixedly mounted on the partition (2) between the second box and the third box. The two ends of the connecting pipe (9) are respectively connected to the second box and the third box. The connecting pipe (9) is arranged at the bottom of the second box and the third box. A connecting valve (91) is arranged on the connecting pipe (9).

9. A method for sinking and floating a caisson-type gate plate for plugging a water inlet, based on the caisson-type gate plate for plugging a water inlet according to any one of claims 1 to 8, characterized in that: include: S1 Preparation: clean up the silt near the underwater plugging and measure the plugging size; S2 gate processing: the gate is processed according to the measured dimensions, and the processed gate is subjected to a closed air test to check whether the sealing is intact; S3 gate transport: the gate body (1) is lifted by a crane to the water surface at the blocking location through the lifting member (6), and then the water filling assembly (4) fills the second and third boxes with water, and then the gate body (1) is adjusted to a vertical state, and the gate body (1) is lowered; S4 gate installation: fix the gate body (1) at the sealing position, fill the interior of the box with water, and apply vertical pressure to increase the stability of the gate body (1); S5 Sealing treatment: Fill the gaps around the gate body (1) and the sealing part; S6 gate disassembly: Close all water filling valves (42), open the water valve (71), ensure that the water levels on both sides of the gate body (1) are the same and the pressure is balanced, then start the water pump (51), open the drainage valve (54), drain the water in the gate body (1), remove the fixing materials and caulking materials on the gate body (1), and lift the gate body (1) out of the water using the lifting device to complete the disassembly of the gate body (1).

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