A retaining structure for hydraulic engineering construction and a construction method thereof

Abstract

This application discloses a retaining structure for water conservancy engineering construction, relating to the technical field of water conservancy engineering construction. It includes a base, a construction frame, and a retaining plate. The base is provided with a first fixing member for fixing the base in the river channel. The base is also provided with a fixing component for fixing the construction frame. A support plate frame is slidably mounted on the construction frame in a direction close to or away from the construction frame. The retaining plate is fixedly mounted on the support plate frame. The construction frame is provided with a limiting member for preventing the support plate frame from sliding. This application has the effect of reducing the consumption of manpower, material resources, and time during the installation of the retaining structure, thereby saving construction costs.

Description

Technical Field

[0001] This application relates to the technical field of water conservancy engineering construction, and in particular to a retaining structure for water conservancy engineering construction and its construction method. Background Technology

[0002] Water conservancy projects are a general term for all projects constructed to control, utilize, and protect surface and underground water resources and the environment. They are classified according to their service targets, such as flood control projects, farmland irrigation projects, hydropower projects, waterway and port projects, water supply and drainage projects, environmental water conservancy projects, and coastal reclamation projects. Water conservancy projects that can simultaneously serve multiple objectives such as flood control, water supply, irrigation, and power generation are called comprehensive utilization water conservancy projects. Water conservancy projects require the construction of different types of hydraulic structures, such as dams, dikes, spillways, sluice gates, intakes, ferries, rafts, and fishways, to achieve their objectives.

[0003] When constructing a river channel, it is usually necessary to protect the riverbank slopes, which mainly serve to form retaining structures. Currently, retaining structures in river channels are usually constructed by setting up retaining walls. However, the construction of retaining walls requires a lot of manpower, material resources, and time, which greatly increases construction costs. Summary of the Invention

[0004] This application provides a retaining structure for water conservancy engineering construction and its construction method, which reduces the consumption of manpower, material resources and time when setting up the retaining structure, thereby saving construction costs.

[0005] Firstly, this application provides a retaining structure for water conservancy engineering construction, which adopts the following technical solution:

[0006] A retaining structure for water conservancy construction includes a base, a construction frame, and a retaining plate. The base is provided with a first fixing member for fixing the base in the river channel. The base is provided with a fixing component for fixing the construction frame. A support plate is slidably provided on the construction frame in a direction close to or away from the construction frame. The retaining plate is fixedly provided on the support plate. The construction frame is provided with a limiting member for preventing the support plate from sliding.

[0007] Optionally, a mounting seat is rotatably mounted on the base, and a limiting component is provided on the base to prevent the mounting seat from rotating. The fixing component is used to fix the construction frame on the base.

[0008] Optionally, the limiting component includes a top support frame and a driving member. A receiving groove is provided on the top wall of the base. The top support frame is slidably disposed in the receiving groove in the vertical direction. A slider is slidably disposed on the mounting base. The top support frame is hinged to the slider. The driving member is used to drive the top support frame to slide.

[0009] Optionally, the driving component includes a rotating shaft, a rack fixedly mounted on the top support frame, a transmission gear rotatably mounted on the base, the rack meshing with the transmission gear, the rotating shaft rotatably mounted on the base, a worm coaxially fixedly mounted on the rotating shaft, and a worm wheel coaxially fixedly mounted on the transmission gear, the worm wheel meshing with the worm.

[0010] Optionally, the fixing component includes a fixing frame, a clamping frame, and a second fixing member. The fixing frame is fixedly mounted on the mounting base, and the clamping frame is slidably mounted on the mounting base in a direction close to or away from the fixing frame. A pressure block is fixedly mounted on one end of the clamping frame close to the fixing frame, and the second fixing member is used to prevent the clamping frame from sliding.

[0011] Optionally, the limiting component includes a limiting screw, which is rotatably mounted on the construction frame, and the axial direction of the limiting screw is parallel to the sliding direction of the support frame. The limiting screw is threadedly engaged with the support frame.

[0012] Optionally, the retaining plate can be detachably mounted on the support frame.

[0013] Optionally, a mounting plate is fixedly provided on the back of the retaining plate, and a locking strip is fixedly provided on both sides of the mounting plate. The support frame has slots on both sides for inserting the locking strips.

[0014] Optionally, it also includes a water-blocking strip installed between two adjacent retaining plates, with elastic sealing plates fixedly installed on both sides of the water-blocking strip. The two elastic sealing plates are respectively used to abut against the edges of the two adjacent retaining plates, and a third fixing member is provided on the support frame for fixing the water-blocking strip.

[0015] Secondly, this application provides a construction method for a retaining structure used in water conservancy engineering, employing the following technical solution:

[0016] A construction method for a retaining structure used in water conservancy engineering includes the following steps:

[0017] S1. Arrange multiple bases sequentially along the extension direction of the river channel and fix the bases.

[0018] S2. Secure the construction frame to the mounting bracket on each base;

[0019] S3. Adjust the angle of the construction frame by rotating the mounting base according to the slope of the riverbank, and then adjust the angle of the retaining plate.

[0020] S4. Place water-blocking strips between each pair of adjacent retaining walls, and drive the support frames on each construction frame to slide so that the retaining walls on each support frame are pressed against the riverbank. The elastic sealing plates on both sides of the water-blocking strips abut against the edges of the two adjacent retaining walls, and the elastic sealing plates are deformed by compression, thereby sealing the gap between the two adjacent retaining walls. Then fix the water-blocking strips to the support frames to complete the installation of the retaining structure.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. Multiple bases are arranged sequentially along the extension direction of the river channel. The bases are fixed in the river channel by the first fixing component. A construction frame is installed on each base and fixed by the fixing component. Then, the support plate frame on each construction frame is slid, so that the retaining plate on each support plate frame is pressed against the river slope, thereby completing the setting of the retaining structure. The retaining structure is convenient and quick to set up, which greatly reduces the consumption of manpower, material resources and time. After the construction is completed, the retaining structure can be recycled and reused, thereby saving construction costs.

[0023] 2. Since the slopes of different river channels are different, the angle of the construction frame can be adjusted by rotating the mounting base, thereby adjusting the angle of the retaining plate to adapt to the installation of slopes with different inclinations and increase practicality.

[0024] 3. During the installation of the retaining structure, a water-retaining strip is installed between two adjacent retaining plates. When the retaining plates are pressed against the riverbank slope, the elastic sealing plates on both sides of the water-retaining strip abut against the edges of the two adjacent retaining plates, and the elastic sealing plates are deformed by compression, thereby sealing the gap between the two adjacent retaining plates. Then, the water-retaining strip is fixed to the support frame by a third fastener, which increases the stability of the water-retaining strip after installation and prevents sand and soil on the slope from being washed into the river through the gap between the two adjacent retaining plates by rainwater, causing soil erosion. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0026] Figure 2 This is a schematic diagram illustrating the structure of the base according to an embodiment of this application;

[0027] Figure 3 yes Figure 2 Enlarged view of section A;

[0028] Figure 4 This is an exploded view of the structure of an embodiment of this application;

[0029] Figure 5 This is a schematic diagram illustrating the structure of the water-blocking strip in an embodiment of this application.

[0030] Explanation of reference numerals in the attached drawings: 1. Base; 11. First fixing component; 111. Mounting screw; 112. Mounting nut; 12. Mounting hole; 13. Top support frame; 131. Rack; 14. Receiving groove; 15. Rotating shaft; 151. Worm gear; 152. Column block; 16. Transmission gear; 161. Worm wheel; 2. Construction frame; 21. Support plate frame; 211. Installation section; 212. Slot; 213. Third fixing component; 22. Insertion block; 23. Guide rod; 24. Limiting screw; 3. Retaining plate; 31. Mounting plate; 32. Clip; 4. Mounting seat; 41. Slide groove; 42. Slider; 43. Insertion groove; 44. Fixing frame; 45. Clamping frame; 451. Pressure block; 46. Second fixing component; 5. Water-retaining strip; 51. Elastic sealing plate. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0032] This application discloses a retaining structure for hydraulic engineering construction. (Refer to...) Figure 1 It includes a base 1, a construction frame 2 and a retaining plate 3. A mounting seat 4 is rotatably mounted on the base 1. A fixing component for fixing the construction frame 2 is mounted on the mounting seat 4. A support frame 21 is slidably mounted on the construction frame 2. The retaining plate 3 is mounted on the support frame 21.

[0033] Reference Figure 2 The base 1 is provided with a first fixing member 11 for fixing the base 1 in the river channel. The first fixing member 11 includes anchor piles. Each base 1 is equipped with at least two anchor piles. Multiple installation holes 12 for anchor piles to pass through are opened in the vertical direction on the base 1. An installation screw 111 is fixedly installed on the top of the anchor pile. An installation nut 112 is adapted on the installation screw 111. Multiple bases 1 are arranged in sequence along the extension direction of the river channel, and the end faces of two adjacent bases 1 are in contact with each other. Multiple anchor piles are passed through the installation holes 12 on the base 1 respectively and driven into the soil layer at the bottom of the river channel. One end of the installation screw 111 is located in the installation hole 12. Then, the installation nut 112 is threaded onto the installation screw 111, so that the installation nut 112 presses against the top wall of the base 1, thereby fixing the base 1 in the river channel.

[0034] Reference Figure 3The rotation axis of the mounting base 4 is parallel to the top wall of the base 1. The base 1 is provided with a limiting component to prevent the mounting base 4 from rotating. The limiting component includes a top support frame 13 and a driving component. A receiving groove 14 is provided on the top wall of the base 1. The top support frame 13 is slidably disposed in the receiving groove 14 in the vertical direction. A sliding groove 41 is provided at one end of the mounting base 4 near the base 1 in the direction perpendicular to the rotation axis of the mounting base 4. A slider 42 is slidably disposed in the sliding groove 41. The cross section of the slider 42 is T-shaped. The sliding groove 41 is adapted to the slider 42. The top support frame 13 is hinged to the slider 42.

[0035] Reference Figure 2 , 3 The driving component includes a rotating shaft 15, a rack 131 fixedly mounted on a top support frame 13, the rack 131 being vertical in axis, a mounting groove communicating with a receiving groove 14 being opened in the vertical direction on the top wall of the base 1, the rack 131 being slidably mounted in the mounting groove, a mounting cavity being opened in the base 1, the mounting cavity communicating with the mounting groove, a transmission gear 16 being rotatably mounted in the mounting cavity, the rack 131 meshing with the transmission gear 16, the rotating shaft 15 being rotatably mounted on the base 1, and one end of the rotating shaft 15 extending into the mounting cavity, a worm gear 151 being coaxially fixedly mounted on the end of the rotating shaft 15 located in the mounting cavity, and a worm wheel 161 being coaxially fixedly mounted on the transmission gear 16, the worm wheel 161 meshing with the worm gear 151.

[0036] Reference Figure 3 A cylindrical block 152 is fixedly provided at the end of the rotating shaft 15 away from the worm gear 151. In this application, the cylindrical block 152 is a regular triangular prism. In other embodiments, the cylindrical block 152 is any one of a regular square prism, a regular pentagonal prism, or a regular hexagonal prism. The central axis of the cylindrical block 152 is collinear with the central axis of the rotating shaft 15. The cylindrical block 152 facilitates the rotation of the rotating shaft 15. When the rotating shaft 15 rotates, it drives the worm gear 151 to rotate. The worm gear 151 drives the worm wheel 161 to rotate. The worm wheel 161 drives the transmission gear 16 to rotate, which in turn drives the rack 131 to slide, thereby causing the top support frame 13 to rise or fall. When the top support frame 13 rises or falls, it drives the slider 42 to slide in the groove 41 of the mounting base 4, thereby driving the mounting base 4 to rotate. This allows the angle of the construction frame 2 and the angle of the retaining plate 3 to be adjusted according to the slope of different river channels, increasing practicality.

[0037] Reference Figure 4The construction frame 2 is fixedly provided with multiple plug-in blocks 22, and the mounting base 4 is provided with multiple plug-in slots 43 for the plug-in blocks 22 to be inserted. The plug-in blocks 22 on the construction frame 2 correspond one-to-one with the plug-in slots 43 on the mounting base 4. The fixing components include a fixing frame 44, a clamping frame 45, and a second fixing member 46. The fixing frame 44 is fixedly provided on the mounting base 4. The clamping frame 45 is slidably provided on the mounting base 4 in the direction close to or away from the fixing frame 44. The top wall of the mounting base 4 is provided with a guide groove along the sliding direction of the clamping frame 45. A guide block is fixedly provided on the clamping frame 45. The guide block is slidably provided in the guide groove. The guide groove is a T-shaped groove. The guide block is adapted to the guide groove. A pressure block 451 is fixedly provided at one end of the clamping frame 45 near the fixing frame 44.

[0038] Reference Figure 4 The second fixing component 46 includes multiple tension screws, all of which are fixedly mounted on the fixing frame 44. The axial direction of the tension screws is parallel to the sliding direction of the clamping frame 45. The clamping frame 45 has multiple through holes along the axial direction of the tension screws, each corresponding to a tension screw. The tension screws slide through their respective through holes. Each tension screw is fitted with a limit nut. When the plug-in blocks 22 on the construction frame 2 are inserted into the installation... After each insertion slot 43 on the base 4, the construction frame 2 abuts against the fixed frame 44, and then the clamping frame 45 is driven to slide towards the fixed frame 44, so that the clamping frame 45 abuts against the side wall of the construction frame 2. At this time, the pressure block 451 abuts against the construction frame 2, preventing the insertion block 22 from disengaging from the insertion slot 43. Then, limit nuts are threaded onto each tension screw, so that the limit nuts on each tension screw abut against the clamping frame 45, thereby fixing the construction frame 2 on the mounting base 4.

[0039] Reference Figure 4 Multiple guide rods 23 are fixedly installed on the support frame 21. The length direction of each guide rod 23 is parallel. Multiple guide holes are opened on the construction frame 2. The guide rods 23 correspond one-to-one with the guide holes, and the guide rods 23 slide through their respective guide holes. The construction frame 2 is provided with a limiting component to prevent the support frame 21 from sliding. The limiting component includes a limiting screw 24. The limiting screw 24 is rotatably installed on the construction frame 2, and the axial direction of the limiting screw 24 is parallel to the length direction of the guide rods 23. The limiting screw 24 is threadedly engaged with the support frame 21.

[0040] Reference Figure 4A mounting plate 31 is fixedly installed on the back of the retaining plate 3. An installation section 211 adapted to the mounting plate 31 is opened on the support frame 21. A retaining strip 32 is fixedly installed on both sides of the mounting plate 31. The retaining strip 32 is integrally formed with the mounting plate 31. The length directions of the two retaining strips 32 are parallel and parallel to the length direction of the retaining plate 3. The retaining strip 32 and the retaining plate 3 are fitted with a gap. The two side walls of the installation section 211 are provided with slots 212 for inserting the retaining strip 32. The mounting plate 31 is inserted into the installation section 211 on the support frame 21, and the retaining strips 32 on both sides of the mounting plate 31 are respectively inserted into the slots 212 on both sides of the installation section 211, thereby fixing the retaining plate 3 on the support frame 21. Since the retaining plate 3 is prone to damage after long-term use, the retaining plate 3 is detachably installed on the support frame 21 to facilitate the replacement of the retaining plate 3.

[0041] Reference Figure 5 The structure also includes a water-blocking strip 5 installed between two adjacent retaining plates 3. Both sides of the water-blocking strip 5 are fixedly provided with elastic sealing plates 51. In this embodiment, the elastic sealing plates 51 are made of elastic steel; in other embodiments, they can be made of elastic plastic. A third fixing member 213 for fixing the water-blocking strip 5 is provided on the support frame 21. The third fixing member 213 includes bolts. During installation, the water-blocking strip 5 is installed between two adjacent retaining plates 3. When the retaining plates 3 are pressed against the riverbank slope, the elastic sealing plates 51 on both sides of the water-blocking strip 5 abut against the edges of the two adjacent retaining plates 3, and the elastic sealing plates 51 are deformed by compression, thereby sealing the gap between the two adjacent retaining plates 3. Then, the water-blocking strip 5 is fixed to the support frame 21 with bolts, increasing the stability of the water-blocking strip 5 after installation and preventing sand and soil on the slope from being washed away by rainwater and entering the riverbed through the gap between the two adjacent retaining plates 3, causing soil erosion.

[0042] The implementation principle of a retaining structure for water conservancy engineering construction according to an embodiment of this application is as follows: Multiple bases 1 are arranged sequentially along the extension direction of the river channel, with the end faces of adjacent bases 1 abutting each other. Multiple anchor piles are passed through mounting holes 12 on the bases 1 and driven into the soil layer at the bottom of the river channel. One end of the mounting screw 111 is positioned within the mounting hole 12. Then, a mounting nut 112 is threaded onto the mounting screw 111, pressing the mounting nut 112 against the top wall of the base 1, thereby fixing the base 1 within the river channel. Construction frame 2 is installed on each mounting base 4. The plug-in block 22 on the construction frame 2 is inserted into the plug-in slot 43 on the mounting base 4, and the clamping frame 45 is driven to slide towards the fixed frame 44, so that the clamping frame 45 abuts against the side wall of the construction frame 2. At this time, the pressure block 451 abuts against the construction frame 2, preventing the plug-in block 22 from disengaging from the plug-in slot 43. Then, limit nuts are threaded onto each tension screw, so that the limit nuts on each tension screw abut against the clamping frame 45, thereby fixing the construction frame 2 on the mounting base 4.

[0043] Based on the slope of the riverbank, the rotating shaft 15 is rotated, causing the mounting base 4 to rotate and adjusting the angle of the construction frame 2, thereby adjusting the angle of the retaining plate 3 so that the retaining plate 3 is parallel to the riverbank slope. A water-blocking strip 5 is installed between two adjacent retaining plates 3. Then, the limiting screws 24 on each construction frame 2 are rotated to drive the support frame 21 to slide, ensuring that the retaining plates 3 on each support frame 21 are tightly against the riverbank slope. The elastic sealing plates 51 on both sides of the water-blocking strip 5 abut against the edges of two adjacent retaining plates 3, and the elastic sealing plates 51 are deformed by compression, thus sealing the gap between the two adjacent retaining plates 3. Finally, the water-blocking strip 5 is fixed to the support frame 21 with bolts, thus completing the installation of the retaining structure. The retaining structure is convenient and quick to install, greatly reducing the consumption of manpower, material resources, and time. Furthermore, after construction, the retaining structure can be recycled and reused, thus saving construction costs.

[0044] This application also discloses a construction method for a retaining structure used in water conservancy engineering, including the following steps:

[0045] S1. Multiple bases 1 are arranged sequentially along the extension direction of the river channel, with the end faces of two adjacent bases 1 touching each other. Multiple anchor piles are passed through the mounting holes 12 on the bases 1 and driven into the soil layer at the bottom of the river channel. One end of the mounting screw 111 is located in the mounting hole 12. Then, the mounting nut 112 is threaded onto the mounting screw 111, so that the mounting nut 112 presses against the top wall of the base 1, thereby fixing the base 1 in the river channel.

[0046] S2. Install the construction frame 2 on each mounting base 4, insert the plug-in block 22 on the construction frame 2 into the plug-in slot 43 on the mounting base 4 respectively, drive the clamping frame 45 to slide towards the fixed frame 44, so that the clamping frame 45 abuts against the side wall of the construction frame 2. At this time, the pressure block 451 abuts against the construction frame 2, preventing the plug-in block 22 from disengaging from the plug-in slot 43. Then, thread the limit nut onto each tension screw, so that the limit nut on each tension screw abuts against the clamping frame 45 respectively, thereby fixing the construction frame 2 on the mounting base 4.

[0047] S3. Based on the slope of the riverbank, rotate the shaft 15 to drive the mounting base 4 to rotate, adjust the angle of the construction frame 2, and then adjust the angle of the retaining plate 3 so that the retaining plate 3 is parallel to the riverbank.

[0048] S4. Install the water-blocking strip 5 between two adjacent retaining plates 3. Then, rotate the limiting screws 24 on each construction frame 2 to drive the support frame 21 to slide, so that the retaining plates 3 on each support frame 21 are pressed against the river slope. The elastic sealing plates 51 on both sides of the water-blocking strip 5 abut against the edges of the two adjacent retaining plates 3 respectively, and the elastic sealing plates 51 are deformed by compression, thereby sealing the gap between the two adjacent retaining plates 3. Then, fix the water-blocking strip 5 to the support frame 21 with bolts to complete the setting of the retaining structure.

[0049] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A retaining structure for water conservancy engineering construction, characterized in that: The system includes a base (1), a construction frame (2), and a retaining plate (3). The base (1) is provided with a first fixing member (11) for fixing the base (1) in the river channel. The base (1) is provided with a fixing component for fixing the construction frame (2). The construction frame (2) is slidably provided with a support frame (21) in the direction close to or away from the construction frame (2). The retaining plate (3) is fixedly provided on the support frame (21). The construction frame (2) is provided with a limiting member for preventing the support frame (21) from sliding. The base (1) is rotatably provided with a mounting seat (4), and the base (1) is provided with a limiting component for preventing the mounting seat (4) from rotating. The fixing component is used to fix the construction frame (2) on the mounting seat (4). The limiting component includes a top support frame (13) and a driving component. A receiving groove (14) is provided on the top wall of the base (1). The top support frame (13) is slidably disposed in the receiving groove (14) in the vertical direction. A slider (42) is slidably disposed on the mounting base (4). The top support frame (13) is hinged to the slider (42). The driving component is used to drive the top support frame (13) to slide. The driving component includes a rotating shaft (15), a rack (131) fixedly mounted on the top support frame (13), a transmission gear (16) rotatably mounted on the base (1), the rack (131) meshing with the transmission gear (16), the rotating shaft (15) rotatably mounted on the base (1), a worm (151) coaxially fixedly mounted on the rotating shaft (15), and a worm wheel (161) coaxially fixedly mounted on the transmission gear (16), the worm wheel (161) meshing with the worm (151).

2. The retaining structure for water conservancy engineering construction according to claim 1, characterized in that: The fixing assembly includes a fixing frame (44), a clamping frame (45), and a second fixing member (46). The fixing frame (44) is fixedly mounted on the mounting base (4). The clamping frame (45) is slidably mounted on the mounting base (4) in a direction close to or away from the fixing frame (44). A pressure block (451) is fixedly mounted on one end of the clamping frame (45) close to the fixing frame (44). The second fixing member (46) is used to prevent the clamping frame (45) from sliding.

3. The retaining structure for water conservancy engineering construction according to claim 1, characterized in that: The limiting component includes a limiting screw (24), which is rotatably mounted on the construction frame (2), and the axial direction of the limiting screw (24) is parallel to the sliding direction of the support frame (21). The limiting screw (24) is threadedly engaged with the support frame (21).

4. A retaining structure for water conservancy engineering construction according to claim 1, characterized in that: The retaining plate (3) is detachably mounted on the support frame (21).

5. A retaining structure for water conservancy engineering construction according to claim 4, characterized in that: The back of the retaining plate (3) is fixedly provided with an installation plate (31), and both sides of the installation plate (31) are fixedly provided with clips (32). Both sides of the support frame (21) are provided with slots (212) for inserting the clips (32).

6. A retaining structure for water conservancy engineering construction according to claim 1, characterized in that: It also includes a water-blocking strip (5) installed between two adjacent retaining plates (3), and elastic sealing plates (51) are fixedly installed on both sides of the water-blocking strip (5). The two elastic sealing plates (51) are respectively used to abut the edges of the two adjacent retaining plates (3). A third fixing member (213) for fixing the water-blocking strip (5) is provided on the support frame (21).

7. A construction method for a retaining structure used in water conservancy engineering construction based on the method described in claim 6, characterized in that, Includes the following steps: S1. Arrange multiple bases (1) sequentially along the extension direction of the river channel and fix the bases (1); S2. Fix the construction frame (2) on the mounting seat (4) on each base (1); S3. According to the slope of the riverbank, adjust the angle of the construction frame (2) by rotating the mounting base (4), and then adjust the angle of the retaining plate (3); S4. Place the water-blocking strip (5) between each pair of adjacent retaining plates (3), and drive the support frame (21) on each construction frame (2) to slide so that the retaining plates (3) on each support frame (21) are pressed against the river slope. The elastic sealing plates (51) on both sides of the water-blocking strip (5) abut against the edges of the two adjacent retaining plates (3) respectively, and the elastic sealing plates (51) are deformed by compression, thereby sealing the gap between the two adjacent retaining plates (3). Then fix the water-blocking strip (5) to the support frame (21) to complete the setting of the retaining structure.

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