Assembled water diversion channel for pumped storage power station and construction method

Abstract

The application discloses a kind of water storage power station with assembled diversion channel and construction method, specifically related to water storage power station diversion channel construction technology field, including diversion channel prefabricated frame, prefabricated channel board is installed in the diversion channel prefabricated frame, the inside of prefabricated channel board is equipped with positioning mobile mechanism;The positioning mobile mechanism includes the first extension channel board being arranged in the inside of prefabricated channel board, and the inner wall of first extension channel board is slidably hoisted with second extension channel board, the top of diversion channel prefabricated frame is embedded with two groups of positioning pouring holes being opened.The present application can be dispersed after lifting and spread, the construction efficiency is not only higher, and each position is superimposed and spliced, the stability of connection is better, the construction efficiency is also faster, prefabricated channel board can be realized prefabricated fixed, multi-point embedded fixed, effectively improve the construction efficiency of assembled diversion channel for water storage power station, and improve water flow impact resistance.

Description

Technical Field

[0001] This invention relates to the field of water diversion channel construction technology for hydro-storage power stations, and more specifically, to a prefabricated water diversion channel and construction method for hydro-storage power stations. Background Technology

[0002] A hydroelectric power station utilizes electricity generated during off-peak hours in the power grid. Water is pumped from the lower reservoir to the upper reservoir for storage, and then released back into the lower reservoir to generate electricity when the grid experiences peak load. This type of power station is also known as a storage hydroelectric power station. Therefore, the water flow needs to be diverted along a water diversion channel.

[0003] Existing technology, patent publication number CN110424331A, discloses a prefabricated water diversion channel for a hydropower station. It includes a trench excavated within the foundation, with multiple water diversion units arranged along its length. Each water diversion unit comprises two concrete cushion layers cast at the bottom of the trench, a cast-in-place base slab on top of the concrete cushion layers, and a precast base slab between the two cast-in-place base slabs. Precast wall panels and precast supports, supported on the concrete cushion layers, are provided on the outer end faces of both cast-in-place base slabs. The invention also discloses a construction method for this water diversion channel, including excavating the trench and precasting the base slab, supports, and wall panels; assembling the precast components and casting the cast-in-place base slab on-site; and backfilling with soil. The beneficial effects of this invention are: compact structure, low foundation requirements, reduced formwork time, increased construction speed, and reduced construction costs; and the ability to prefabricate and assemble, achieving a streamlined process and accelerating the construction cycle.

[0004] However, when using the prefabricated water diversion channel of the aforementioned hydropower station, it is necessary to excavate trenches and prefabricate bottom slabs, supports and wall panels, mix prefabricated products and pour cast-in-place bottom slabs on site, and backfill soil layers. In this construction process, since the entire water channel is large, it is necessary to install it section by section. After splicing, the overall construction efficiency is low, and the overall resistance to water flow impact is poor when spliced ​​at various locations. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a modular water diversion channel for hydroelectric power stations and a construction method thereof.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a prefabricated water diversion channel for a hydroelectric power station, comprising a prefabricated water diversion channel frame, wherein a prefabricated channel slab is installed inside the prefabricated water diversion channel frame, and a positioning and moving mechanism is provided inside the prefabricated channel slab;

[0007] The positioning and moving mechanism includes a first extended channel plate disposed inside the precast channel slab, and a second extended channel plate slidably suspended on the inner wall of the first extended channel plate. Two sets of positioning injection holes are embedded in the top of the precast frame of the water diversion channel. Through-holes are embedded in the inner walls of the precast channel slab, the first extended channel plate, and the second extended channel plate. Four first concave support plates are fixed on the lower surface of the precast frame of the water diversion channel. Two second concave support plates are fixed at the bottom of the first extended channel plate away from the precast channel slab. Two third concave support plates are provided at the bottom of the second extended channel plate away from the first extended channel plate. Moving components are provided inside the third concave support plates, the second concave support plates, and the first concave support plates. A sealing component is provided above the through-holes. An embedding component is installed above the positioning injection holes.

[0008] Preferably, the prefabricated channel plate is slidably connected to the first extended channel plate, and the inner wall of the prefabricated channel plate and the outer wall of the first extended channel plate are both polished. The second extended channel plate is movably connected to the first extended channel plate, and the outer surfaces of both the second extended channel plate and the first extended channel plate are polished.

[0009] Preferably, the movable component includes a movable rod fixedly disposed inside the first concave support plate, and the outer wall of the movable rod is movably connected to a movable wheel through a bearing. Lifting hooks are pre-embedded and cast at the top position of the first concave support plate near its four corners. Two tension hooks are pre-embedded and cast on the upper surface of the first extended channel plate, and two linkage hooks are pre-embedded and fixed at the top of the second extended channel plate.

[0010] Preferably, the sealing assembly includes a limiting sealing ring disposed above the connecting hole. The limiting sealing ring has a rotating screw threadedly connected to its interior, and a limiting ring is fixed at the bottom and top of the limiting sealing ring. The outer wall of the limiting sealing ring has multiple inclined holes evenly distributed in a circular pattern. An inclined insertion rod is movably inserted into the interior of each inclined hole. The limiting sealing ring and the connecting hole are matched and inserted into each other, and the inclined insertion rod is prefabricated from concrete and steel bars.

[0011] Preferably, the embedding assembly includes a cross blade mounted above the positioning injection hole, and a cross support plate is fixed to the top of the cross blade. A compression support for insertion into the positioning injection hole is welded to the upper surface of the cross support plate. A striking support plate is welded to the top of the compression support. A lower insertion support rod is installed on the lower surface of the striking support plate and at one side of the compression support. Three guide tips are evenly distributed in a ring on the outer wall of the lower insertion support rod. All of the guide tips are fixedly connected to the lower insertion support rod, and one side of each guide tip is rounded.

[0012] A construction method for a prefabricated water diversion channel used in a hydro-storage power station, the specific steps of which are as follows:

[0013] Step 1: During the overall hoisting, a channel suitable for installing the prefabricated water diversion canal frame can be excavated at the construction site of the hydropower station. A crane is used to directly hoist the prefabricated water diversion canal frame into the channel. The first extension channel slab is stacked on the inner wall of the prefabricated channel slab, and the second extension channel slab is stacked on the inner wall of the first extension channel slab. Using the crane's wire ropes, the slabs are sequentially hoisted onto four lifting hooks, with each wire rope secured to a hook position. This allows for the simultaneous hoisting of the prefabricated channel slab, the first extension channel slab, and the second extension channel slab. After the prefabricated channel slab is installed within the prefabricated water diversion canal frame, [further steps are needed]. The movable wheel inside the first concave support plate can contact the bottom of the inner wall of the precast frame of the water diversion channel to move. This allows for a slight adjustment of the position of each precast channel plate. With the help of the tension hook, the traction rope is used to pull the plate. The tension hook drives the first extended channel plate, causing the movable wheel on the second concave support plate to move. After the first extended channel plate extends out of the precast channel plate, the traction rope can be tied to the linkage hook. The linkage hook drives the second extended channel plate, causing the movable wheels on the two third concave support plates to move as well. In this way, the precast channel plate, the first extended channel plate, and the second extended channel plate can be quickly extended to complete the laying.

[0014] Step 2: During cement pouring, concrete can be directly poured into the connecting hole and the positioning pouring hole. This fills the internal position of the precast frame of the water diversion channel, ensuring that the poured concrete fills the gap between the precast channel slab, the first extended channel slab, the second extended channel slab, and the precast frame of the water diversion channel. The limiting sealing ring is directly inserted into the connecting hole. Using an Allen wrench, the rotating disc can be rotated. The rotating disc and the limiting sealing ring move downward under the action of the thread. The limiting ring can protect and limit the upper surface of the rotating disc. In this way, the rotating disc can squeeze the four inclined insertion rods, which can be inserted along the inside of the inclined hole. Thus, the inclined insertion rods can extend into the entire concrete to achieve insertion and embedding. In the same way, the other limiting sealing rings are inserted into the first extended channel slab and the second extended channel slab in sequence.

[0015] Step 3: During the perimeter fixing, insert the cross-shaped blade into the positioning injection hole, and then use a hammer to tap the support plate. Tapping the support plate will cause the compression column to insert downwards, which in turn will cause the cross-shaped support plate to insert downwards. The cross-shaped support plate can also cause the cross-shaped blade to insert into the concrete. At the same time, tapping the support plate will cause the lower insertion rod to insert into the concrete poured outside the precast frame of the water diversion channel. The lower insertion rod will also cause multiple guide plates to insert into the concrete poured outside the precast frame of the water diversion channel, thus achieving the embedded function. In this way, two sets of cross-shaped blades can be quickly inserted to complete the fixing operation of the precast frame of the water diversion channel.

[0016] The technical effects and advantages of this invention are as follows:

[0017] 1. This invention uses a positioning and moving mechanism to stack the first extended channel plate onto the inner wall of the precast channel plate, and the second extended channel plate onto the inner wall of the first extended channel plate. The steel wire rope on the crane is sequentially hoisted onto four lifting hooks to lift the precast channel plate, the first extended channel plate, and the second extended channel plate at one time. This batch lifting allows the channels to be laid out separately after lifting, enabling rapid precast construction of the irrigation canal. This not only increases construction efficiency but also improves the overall resistance to water flow impact due to the stacking and splicing at various locations.

[0018] 2. The present invention uses a cover assembly to rotate the screw disc. The limiting ring can protect and limit the upper surface of the rotating screw disc. The inclined insertion rod can be inserted along the inside of the inclined hole to realize the insertion and embedding, and complete the pre-embedded fixing of the first extended channel plate, the prefabricated channel plate and the second extended channel plate. This direct pre-embedded fixing has better connection stability and faster construction efficiency.

[0019] 3. The present invention uses an embedded component to insert the cross blade into the positioning injection hole, and the tapping of the support plate drives the compression column to be inserted downward. The tapping of the support plate drives the lower insertion rod to be inserted into the concrete poured outside the precast frame of the water diversion channel. The guide tip plate is inserted into the concrete poured outside the precast frame of the water diversion channel. In this way, the precast channel slab can be precast and fixed, and the multi-point pre-embedded fixing can effectively improve the impact resistance of the entire water diversion channel.

[0020] In summary, through the interaction of the above-mentioned multiple functions, the water diversion channel can be laid out in a dispersed manner after lifting, which allows for rapid prefabrication construction. Moreover, the overlapping and splicing at various locations results in better connection stability and faster construction efficiency. It also enables prefabrication and fixing of the prefabricated channel slabs, with multiple points of pre-embedded fixing. In summary, this effectively improves the construction efficiency of the assembled water diversion channel for hydroelectric power stations and enhances its resistance to water flow impact. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the main structure of a modular water diversion channel for a hydroelectric power station according to the present invention.

[0022] Figure 2 This is a bottom view schematic diagram of the prefabricated channel slab structure in a modular water diversion channel for a hydroelectric power station according to the present invention.

[0023] Figure 3 This is a schematic diagram of the connection between the first concave support plate and the movable rod in a modular water diversion channel for a hydroelectric power station according to the present invention.

[0024] Figure 4 This is a schematic diagram of the connection between the limiting sealing ring and the rotating screw disc in a modular water diversion channel for a hydroelectric power station according to the present invention.

[0025] Figure 5 This is a schematic diagram of the rotating screw disc structure in a modular water diversion channel for a hydroelectric power station according to the present invention.

[0026] Figure 6 This is a schematic diagram of the embedded component structure in a modular water diversion channel for a hydroelectric power station according to the present invention.

[0027] The attached diagram is labeled as follows: 1. Precast frame of the irrigation canal; 2. Precast channel slab; 3. First extended channel slab; 4. Second extended channel slab; 5. Positioning injection hole; 6. Connecting hole; 7. First concave support plate; 8. Second concave support plate; 9. Third concave support plate; 10. Moving rod; 11. Moving wheel; 12. Lifting hook; 13. Pulling hook; 14. Linkage hook; 15. Limiting sealing ring; 16. Rotating screw; 17. Limiting ring; 18. Inclined insertion rod; 19. Inclined hole; 20. Cross blade; 21. Cross support plate; 22. Extrusion support column; 23. Striking support plate; 24. Lower insertion support rod; 25. Inlet tip plate. Detailed Implementation

[0028] 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.

[0029] As attached Figure 1-6 The diagram shows a modular water diversion channel for a hydroelectric power station. The channel is equipped with a positioning and moving mechanism, a sealing assembly, and an embedding assembly. The specific structural configurations of each mechanism and assembly are as follows:

[0030] In some embodiments, as shown in the accompanying drawings, the positioning and moving mechanism includes a first extended channel plate 3 disposed inside the precast channel slab 2, and a second extended channel plate 4 is slidably suspended on the inner wall of the first extended channel plate 3. Two sets of positioning and filling holes 5 are embedded at the top of the precast water diversion frame 1. Through-holes 6 are embedded in the inner walls of the precast channel slab 2, the first extended channel plate 3, and the second extended channel plate 4. Four first concave support plates 7 are fixed on the lower surface of the precast water diversion frame 1, and two second concave support plates 8 are fixed at the bottom of the first extended channel plate 3 away from the precast channel slab 2. Two third concave support plates 9 are provided at the bottom of the channel plate 4 and away from the first extended channel plate 3. The third concave support plate 9, the second concave support plate 8, and the first concave support plate 7 are all provided with moving components. A capping component is provided above the connecting hole 6. An embedding component is installed above the positioning injection hole 5. The prefabricated channel plate 2 and the first extended channel plate 3 are slidably connected. The inner wall of the prefabricated channel plate 2 and the outer wall of the first extended channel plate 3 are both polished. The second extended channel plate 4 and the first extended channel plate 3 are movably connected. The outer surfaces of the second extended channel plate 4 and the first extended channel plate 3 are both polished.

[0031] In some embodiments, as shown in the accompanying drawings, the movable component includes a movable rod 10 fixedly disposed inside the first concave support plate 7, and a movable wheel 11 is movably connected to the outer wall of the movable rod 10 via a bearing, so that the movable wheel 11 can roll at the bottom position of the inner wall of the precast frame 1 of the water diversion channel, and the movable wheel 11 rolls outside the movable rod 10, and the first concave support plate 7 can support the movable rod 10.

[0032] In some embodiments, as shown in the accompanying drawings, lifting hooks 12 are pre-embedded and cast at the top of the first concave support plate 7 near its four corners. Two tension hooks 13 are pre-embedded and cast on the upper surface of the first extended channel plate 3. Two linkage hooks 14 are pre-embedded and cast at the top of the second extended channel plate 4, so that each wire rope can be fixed at the position of the lifting hook 12. In this way, the prefabricated channel plate 2, the first extended channel plate 3, and the second extended channel plate 4 can be lifted at one time. The tension hooks 13 drive the first extended channel plate 3 to move the moving wheels 11 on the second concave support plate 8. The linkage hooks 14 drive the second extended channel plate 4 to move the moving wheels 11 on the two third concave support plates 9.

[0033] In some embodiments, as shown in the accompanying drawings, the capping assembly includes a limiting sealing ring 15 disposed above the communicating hole 6. The limiting sealing ring 15 is internally threaded with a rotating screw 16, and a limiting ring 17 is fixed at the bottom and top of the limiting sealing ring 15. The outer wall of the limiting sealing ring 15 is provided with a plurality of inclined holes 19 evenly distributed in a circular pattern, and an inclined insertion rod 18 is movably inserted into the interior of each inclined hole 19.

[0034] In some embodiments, as shown in the accompanying drawings, the limiting sealing ring 15 is matched and inserted into the connecting hole 6, and the inclined insertion rod 18 is prefabricated from concrete and steel bars so that the limiting sealing ring 15 can be inserted into the connecting hole 6 to achieve the insertion.

[0035] In some embodiments, as shown in the accompanying drawings, the embedding assembly includes a cross blade 20 mounted above the positioning injection hole 5, and a cross support plate 21 fixed to the top of the cross blade 20. A compression support column 22 for insertion into the positioning injection hole 5 is welded to the upper surface of the cross support plate 21. A striking support plate 23 is welded to the top of the compression support column 22. A lower insertion support rod 24 is installed on the lower surface of the striking support plate 23 and located on one side of the compression support column 22. Three guide tips 25 are evenly distributed in a ring on the outer wall of the lower insertion support rod 24. All of the guide tips 25 are fixedly connected to the lower insertion support rod 24, and one side of each guide tip 25 is rounded.

[0036] The construction method of this invention is as follows:

[0037] During the overall hoisting, the crane directly hoists the prefabricated water diversion canal frame 1 into the canal. The first extended channel slab 3 is stacked on the inner wall of the prefabricated channel slab 2, and the second extended channel slab 4 is stacked on the inner wall of the first extended channel slab 3. The steel wire ropes on the crane are used to hoist the prefabricated channel slab 2, the first extended channel slab 3, and the second extended channel slab 4 in sequence. After the prefabricated channel slab 2 is hoisted to the position of the inner wall of the water diversion canal frame 1, the traction rope is used to pull the tension hook 13 with the help of the tension hook 13. The first extended channel slab 3 causes the moving wheel 11 on the second concave support plate 8 to move. The traction rope is tied to the linkage hook 14. The linkage hook 14 drives the second extended channel slab 4 to move the moving wheel 11 on the two third concave support plates 9 to complete the laying.

[0038] During cement pouring, concrete can be directly poured into the connecting hole 6 and the positioning pouring hole 5. The concrete fills the internal position of the precast frame 1 of the water diversion channel, so that the poured concrete fills the gap between the precast channel slab 2, the first extended channel slab 3, the second extended channel slab 4 and the precast frame 1 of the water diversion channel. The hexagonal tool can rotate the rotating disc 16, and the limiting ring 17 can perform protective limiting operation on the upper surface of the rotating disc 16. The inclined insertion rod 18 can be inserted along the inside of the inclined hole 19 to achieve the insertion and embedding, and complete the pre-embedded fixing of the first extended channel slab 3, the precast channel slab 2, and the second extended channel slab 4.

[0039] When fixing the perimeter, insert the cross blade 20 into the positioning injection hole 5, tap the support plate 23 to drive the compression support 22 to insert downwards, the cross support plate 21 can drive the cross blade 20 to insert into the concrete, tap the support plate 23 to drive the lower insertion support rod 24 to insert into the concrete poured outside the precast frame 1 of the water diversion channel, and multiple guide tip plates 25 are inserted into the concrete poured outside the precast frame 1 of the water diversion channel to achieve the function of embedding. In this way, the precast channel plate 2 can be fixed, and the construction of the prefabricated water diversion channel for the hydroelectric power station can be completed.

[0040] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A prefabricated water diversion channel for a hydroelectric power station, comprising a prefabricated water diversion channel frame (1), wherein a prefabricated channel slab (2) is installed inside the prefabricated water diversion channel frame (1), characterized in that: The prefabricated channel slab (2) is equipped with a positioning and moving mechanism inside; The positioning and moving mechanism includes a first extended channel plate (3) disposed inside the precast channel slab (2), and a second extended channel plate (4) is slidably suspended on the inner wall of the first extended channel plate (3). Two sets of positioning injection holes (5) are embedded in the top of the precast water diversion frame (1). Through holes (6) are embedded in the inner walls of the precast channel slab (2), the first extended channel plate (3), and the second extended channel plate (4). There are four first concave support plates (7) on the lower surface of the precast channel slab (2), and two second concave support plates (8) are fixed at the bottom end of the first extended channel plate (3) and away from the precast channel slab (2). Two third concave support plates (9) are provided at the location. The third concave support plate (9), the second concave support plate (8), and the first concave support plate (7) are all equipped with moving components. A capping assembly is provided above the connecting hole (6). An embedding assembly is installed above the positioning injection hole (5). The capping assembly includes a limiting sealing ring (15) set above the connecting hole (6). The internal thread of the limiting sealing ring (15) is connected to a rotating screw disc (16), and a limiting ring (17) is fixed at the top of the limiting sealing ring (15). The outer wall of the limiting sealing ring (15) is provided with multiple inclined holes (19) evenly distributed in a circular shape. An inclined insertion rod (18) is movably inserted into the interior of each inclined hole (19). When cement is poured... The concrete is directly poured into the connecting hole (6) and the positioning pouring hole (5), thus filling the internal position of the precast frame (1) of the water diversion channel. The poured concrete fills the gap between the precast channel slab (2), the first extended channel slab (3), the second extended channel slab (4) and the precast frame (1) of the water diversion channel. The limiting sealing ring (15) is directly inserted into the connecting hole (6). The rotating screw disc (16) is rotated using an internal hexagon tool. The rotating screw disc (16) and the limiting sealing ring (15) move downward under the action of the thread. The limiting ring (17) protects and limits the upper surface of the rotating screw disc (16). In this way, the rotating screw disc (16) squeezes the four inclined insertion rods (18). (18) Insertion is achieved along the inside of the inclined hole (19), so that the inclined insertion rod (18) extends into the entire concrete to achieve the insertion and embedding. The embedding assembly includes a cross blade (20) installed above the positioning injection hole (5), and a cross support plate (21) is fixed to the top of the cross blade (20). The upper surface of the cross support plate (21) is welded with an extrusion support (22) for insertion into the positioning injection hole (5). A striking support plate (23) is welded to the top of the extrusion support plate (22). A lower insertion support rod (24) is installed on the lower surface of the striking support plate (23) and located on one side of the extrusion support plate (22). The outer wall of the lower insertion support rod (24) has three guide tips (25) distributed in a circular pattern.Striking the support plate (23) causes the lower support rod (24) to be inserted into the concrete poured outside the precast frame (1) of the irrigation canal.

2. The prefabricated water diversion channel for a hydro-storage power station according to claim 1, characterized in that: The prefabricated channel plate (2) is slidably connected to the first extended channel plate (3), and both the inner wall of the prefabricated channel plate (2) and the outer wall of the first extended channel plate (3) are polished.

3. The prefabricated water diversion channel for a hydro-storage power station according to claim 1, characterized in that: The second extended channel plate (4) is movably connected to the first extended channel plate (3), and both the second extended channel plate (4) and the first extended channel plate (3) are polished.

4. The prefabricated water diversion channel for a hydro-storage power station according to claim 1, characterized in that: The moving component includes a moving rod (10) fixedly disposed inside the first concave support plate (7), and the outer wall of the moving rod (10) is movably connected to a moving wheel (11) via a bearing.

5. The prefabricated water diversion channel for a hydro-storage power station according to claim 1, characterized in that: Lifting hooks (12) are pre-embedded and cast at the top of the precast channel plate (2) near its four corners. Two tension hooks (13) are pre-embedded and cast on the upper surface of the first extended channel plate (3). Two linkage hooks (14) are pre-embedded and cast at the top of the second extended channel plate (4).

6. The prefabricated water diversion channel for a hydro-storage power station according to claim 1, characterized in that: The limiting sealing ring (15) is matched and inserted into the connecting hole (6), and the inclined insertion rod (18) is prefabricated from concrete and steel bars.

7. The prefabricated water diversion channel for a hydro-storage power station according to claim 1, characterized in that: The multiple guide tips (25) are all fixedly connected to the lower insert support rod (24), and one side of each guide tip (25) is rounded.

8. A construction method for a prefabricated water diversion channel for a hydro-storage power station according to claim 7, characterized in that: The specific usage steps are as follows: Step 1: During the overall hoisting, a channel for installing the prefabricated frame (1) of the water diversion channel is excavated at the construction site of the hydropower station. The prefabricated frame (1) of the water diversion channel is directly hoisted into the channel using a crane. The first extension channel plate (3) is stacked on the inner wall of the prefabricated channel plate (2), and the second extension channel plate (4) is stacked on the inner wall of the first extension channel plate (3). The steel wire ropes on the crane are used to hoist the prefabricated channel plate (2), and each steel wire rope is fixed at the position of the hoisting hook (12). In this way, the prefabricated channel plate (2), the first extension channel plate (3), and the second extension channel plate (4) are hoisted at one time. After the prefabricated channel plate (2) is hoisted into the position of the inner wall of the prefabricated frame (1) of the water diversion channel, the movement inside the first concave support plate (7) is... The moving wheel (11) moves when it contacts the bottom of the inner wall of the prefabricated frame (1) of the water diversion channel. This makes a slight adjustment to the position of the prefabricated channel slab (2). The tension hook (13) is tied with the traction rope and pulled. The tension hook (13) drives the first extended channel slab (3) to move the moving wheel (11) on the second concave support plate (8). When the first extended channel slab (3) extends out from the prefabricated channel slab (2), the traction rope is tied to the linkage hook (14). The linkage hook (14) drives the second extended channel slab (4) to move the moving wheels (11) on the two third concave support plates (9). In this way, the prefabricated channel slab (2), the first extended channel slab (3), and the second extended channel slab (4) are quickly extended and laid. Step 2: During cement pouring, concrete is directly poured into the connecting hole (6) and the positioning pouring hole (5), thus filling the internal position of the precast frame (1) of the water diversion channel. The poured concrete fills the gap between the precast channel slab (2), the first extended channel slab (3), the second extended channel slab (4) and the precast frame (1) of the water diversion channel. The limiting sealing ring (15) is directly inserted into the connecting hole (6). The rotating screw disc (16) is rotated using an Allen wrench. The rotating screw disc (16) and the limiting sealing ring are then rotated. The ring (15) moves downward under the action of the thread, and the limiting ring (17) performs a protective limiting operation on the upper surface of the rotating screw disk (16). In this way, the rotating screw disk (16) squeezes the four inclined insertion rods (18), and the inclined insertion rods (18) are inserted along the inside of the inclined hole (19). Thus, the inclined insertion rods (18) extend into the entire concrete, realizing the insertion and embedding. In the same manner, the other limiting sealing rings (15) are inserted into the inside of the first extension channel plate (3) and the inside of the second extension channel plate (4) in sequence. Step 3: When fixing the perimeter, insert the cross blade (20) into the positioning injection hole (5), and then use a hammer to strike the support plate (23). Striking the support plate (23) will cause the compression support column (22) to be inserted downwards. The compression support column (22) will cause the cross support plate (21) to be inserted downwards, and the cross support plate (21) will cause the cross blade (20) to be inserted into the concrete. At the same time, striking the support plate (23) will cause the lower insertion support rod (24) to be inserted into the concrete poured outside the precast frame (1) of the water diversion channel. The lower insertion support rod (24) will cause multiple guide tips (25) to be inserted into the concrete poured outside the precast frame (1) of the water diversion channel, thus achieving the function of embedding. In this way, the two sets of cross blades (20) will be quickly inserted to complete the fixing operation of the precast frame (1) of the water diversion channel.

Images