A water stop construction method

Abstract

The application discloses a water stop construction method, which can improve the continuity and strength of concrete at a water stop ridge, prevent the concrete at the water stop ridge from cracking, improve the waterproof effect at the water stop ridge and construction efficiency; the water stop construction method comprises the following steps: constructing a water stop steel plate on a structural layer; constructing an arc-shaped part on both sides of the water stop steel plate, the arc-shaped part is concave in an arc shape, and the arc-shaped part is located at a corner part of the structural layer and the water stop steel plate; constructing a waterproof layer on the surface of the structural layer, the surface of the arc-shaped part and the surface of the water stop steel plate; constructing a leveling layer on both sides of the water stop steel plate; and constructing a bonding layer on the top surface of the leveling layer, and constructing a plate layer on the top surface of the bonding layer.

Description

Technical Field

[0001] This invention relates to the field of decoration and renovation engineering technology, and in particular to a water-stopping construction method. Background Technology

[0002] As people's requirements for the functionality of interior decoration and renovation increase, the water-stop sill technology for the dry and wet areas of bathrooms is becoming more and more popular. The water-stop sill technology for the dry and wet areas of bathrooms usually involves setting up a water-stop sill between the dry and wet areas of the bathroom, and between the bathroom and the corridor, to form a physical water barrier to prevent water from the wet area of ​​the bathroom from seeping into the dry area, corridor and other adjacent areas, reducing the probability of mold and dampness in adjacent spaces and ensuring living comfort.

[0003] In existing technologies, the construction of waterstops typically involves embedding multiple steel bars into the floor slab structure, creating a waterstop slope around the embedded bars using concrete, and then applying waterproofing after the slope has dried. This construction method has the following problems: because the embedded bars are relatively scattered, the lack of continuity between the bars affects the coherence and strength of the concrete, making it prone to cracking and water seepage; the embedded bars are prone to rusting due to being in a dry-wet interface area for a long time; and the installation of the bars is done manually, resulting in low construction efficiency and a low tolerance for errors. Summary of the Invention

[0004] One of the objectives of this invention is, at least, to provide a water-stopping construction method that addresses the problems existing in the prior art, thereby improving the continuity and strength of the concrete at the water-stopping sill, preventing cracking of the concrete at the water-stopping sill, and improving the waterproofing effect and construction efficiency of the water-stopping sill.

[0005] To achieve the above objectives, the technical solution adopted by the present invention includes the following aspects.

[0006] A water-stopping construction method includes the following steps: Step 1: Install water-stop steel plates on the structural layer; Step 2: Construct arc-shaped sections on both sides of the waterstop steel plate. The arc-shaped sections are concave and located at the corner of the structural layer and the waterstop steel plate. Step 3: Apply a waterproof layer to the surface of the structural layer, the surface of the curved section, and the surface of the waterstop steel plate; Step 4: Construct a leveling layer on both sides of the waterstop steel plate; Step 5: Apply the adhesive layer to the top surface of the leveling layer, and then apply the board layer to the top surface of the adhesive layer.

[0007] Preferably, the water-stop steel plate is pre-embedded in the structural layer during the construction of the structural layer or installed in the structural layer on site; when the water-stop steel plate is installed in the structural layer on site, an installation groove is opened on the top surface of the structural layer, and the water-stop steel plate is installed in the installation groove so that the water-stop steel plate is perpendicular to the structural layer.

[0008] Preferably, during the construction of the waterproof layer, waterproof coating and / or waterproof membrane are applied to the surface of the structural layer, the surface of the arc-shaped part, and the surface of the waterstop steel plate.

[0009] Preferably, the installation area where the water-stop steel plate is located is a water-stop sill area, and the two sides of the water-stop steel plate are a dry area and a wet area, respectively. On the wet area side, the waterproof layer extends from the surface of the water-stop steel plate to the structural layer and then fully covers the top surface of the structural layer; on the dry area side, the waterproof layer extends from the surface of the water-stop steel plate to the structural layer.

[0010] Preferably, the height of the leveling layer on the wet side is not higher than the leveling height on the dry side.

[0011] Preferably, the sheet layer includes a dry area sheet, a water-stopping area sheet, and a wet area sheet. The dry area sheet is located on the top surface of the adhesive layer in the dry area, the water-stopping area sheet is located on the top of the water-stopping steel plate, and the opposite sides of the water-stopping area sheet extend from the water-stopping steel plate to the wet area side and the dry area side, respectively. The wet area sheet is located on the top surface of the adhesive layer in the wet area.

[0012] Preferably, the top of the water-stopping sill plate is provided with a slope, and the slope is inclined upward from the wet area to the dry area; the top surface of the leveling layer is provided with a slope.

[0013] Preferably, the bottom of the water-stop sill plate is further provided with a receiving groove, and the top of the water-stop steel plate is located in the receiving groove.

[0014] Preferably, in step two, during the construction of the arc-shaped section, a water-stop protrusion is constructed on the top surface of the structural layer on the dry area side; in step three, during the construction of the waterproof layer, the waterproof layer covers the water-stop protrusion.

[0015] Preferably, in step four, before constructing the leveling layer, vibration damping and sound insulation pads are pasted on both sides of the waterstop steel plate, and the vibration damping and sound insulation pads extend from the waterstop steel plate to the structural layer.

[0016] In summary, by adopting the above technical solution, the present invention has at least the following beneficial effects: By installing an integrated water-stop steel plate within the structural layer, extending vertically beyond the top of the structural layer, the tightness of the bond between the water-stop steel plate and the structural layer is improved, enhancing the stability of the water-stop installation and increasing the water-stopping effect. Furthermore, by applying a waterproof layer to the surface of the water-stop steel plate, which wraps around the plate and extends above the structural layer, the joint between the water-stop steel plate and the structural layer is covered, further enhancing the water-stopping effect. The integrated structure of the water-stop steel plate provides structural continuity, further improving the coherence and strength of the concrete on both sides, preventing concrete cracking, and improving the water-stopping effect. The integrated structure also facilitates installation, improving construction efficiency and tolerance. The leveling layer, located above both the structural and waterproof layers, allows for flexible adjustment of the leveling layer height on both sides of the water-stop steel plate according to on-site construction needs. This facilitates control over the installation height of the panels on both the dry and wet sides, thereby improving the water-stopping effect.

[0017] By constructing a waterproof layer on top of the structural layer and then constructing a leveling layer on top of the waterproof layer to a predetermined height, damage to the leveling layer can be prevented while meeting the overall floor thickness requirements, and the quality of waterproofing construction can also be improved. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the water-stopping sill node structure of an exemplary embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of a waterstop node structure in another exemplary embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the waterstop node structure of another exemplary embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the waterstop node structure of another exemplary embodiment of the present invention.

[0022] The markings in the diagram are: 1-Structural layer, 10-Installation groove, 2-Waterstop steel plate, 3-Curved part, 4-Waterproof layer, 5-Sound damping pad, 6-Leveling layer, 7-Adhesive layer, 8-Board layer, 80-Dry area board, 81-Waterstop sill area board, 82-Wet area board, 9-Waterstop protrusion. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments, so that the objectives, technical solutions, and advantages of the present invention will be clearer. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.

[0024] like Figure 1As shown, the water-stop sill node structure of the exemplary embodiment of the present invention includes a structural layer 1, an installation groove 10 is provided on the top of the structural layer 1, a water-stop steel plate 2 is installed in the installation groove 10, the water-stop steel plate 2 is perpendicular to the structural layer 1, a waterproof layer 4 is provided on the surface of the water-stop steel plate 2, the waterproof layer 4 extends from the surface of the water-stop steel plate 2 to the structural layer 1, a leveling layer 6 is provided on both sides of the water-stop steel plate 2, the leveling layer 6 is located on the structural layer 1, an adhesive layer 7 is provided on the top of the leveling layer 6, and a board layer 8 is laid on the top of the adhesive layer 7.

[0025] The water-stop sill node structure of the present invention, by opening an installation groove 10 (groove depth 15~20mm) on the top of the structural layer 1, allows the water-stop steel plate 2 to be installed in the installation groove 10. The joint surface between the water-stop steel plate 2 and the structural layer 1 is tighter, which can improve the stability of the installation of the water-stop steel plate 2 on the structural layer 1, and also reduce the gaps between the water-stop steel plate 2 and the structural layer 1, thereby improving the water-stopping effect. Since the waterproof layer 4 on the surface of the water-stop steel plate 2 extends from the surface of the water-stop steel plate 2 to the structural layer 1, the waterproof layer 2 covers the joint between the water-stop steel plate 2 and the structural layer 1, which can further improve the water-stopping effect. The leveling layer 6 on both sides of the water-stop steel plate 2 is located on the structural layer 1 and also on the waterproof layer 4. The height of the leveling layer 6 on both sides of the water-stop steel plate 2 can be flexibly set according to the on-site construction requirements.

[0026] The waterstop steel plate 2 is an integral structure, with its ends embedded in the wall (when in contact with the wall). This further enhances its water-stopping effect. Because it is an integral structure, compared to waterstop structures constructed using rebar anchoring, the waterstop steel plate 2 exhibits structural continuity, further improving the coherence and strength of the concrete on both sides, preventing concrete cracking, and thus enhancing the water-stopping effect. The integral structure also facilitates installation, improving construction efficiency and tolerance. Stainless steel is preferred for the waterstop steel plate 2 (other rust-resistant materials such as weathering steel and coated steel can also be used). Using stainless steel improves the waterstop steel plate 2's rust resistance in the wet-dry interface area, ensuring waterproofing performance.

[0027] The waterstop steel plate 2 has arc-shaped portions 3 on both sides. The arc-shaped portions 3 are located at the corner of the waterstop steel plate 2 and the structural layer 1. The arc-shaped portions 3 are made of mortar (or C20 fine stone concrete). When a waterproof layer 4 is set on the surface of the waterstop steel plate 2, and the waterproof layer 4 extends from the surface of the waterstop steel plate 2 to the top surface of the structural layer 1, the arc-shaped portions 3 facilitate a smooth transition of the waterproof layer 4 from the waterstop steel plate 2 to the structural layer 1, further improving the waterproof effect.

[0028] The installation area where the waterstop steel plate 2 is located is the waterstop sill area. The two sides of the waterstop steel plate 2 are the dry area and the wet area, respectively. On the wet area side, the waterproof layer 4 extends from the surface of the waterstop steel plate 2 to the structural layer 1 and then fully covers the top surface of the structural layer 1 to ensure the waterproof effect. On the dry area side, the waterproof layer 4 can extend from the surface of the waterstop steel plate 2 to the structural layer 1. After extending from the surface of the waterstop steel plate 2 to the structural layer 1, the waterproof layer 4 can also extend a certain distance on the top surface of the structural layer 1. On the surface of the waterstop steel plate 2, the waterproof layer 4 wraps the top surface and the left and right sides of the waterstop steel plate, so that the waterproof layer 4 completely wraps the waterstop steel plate 2. The waterproof layer 4 can be a single layer or multiple layers. When a single layer is used, the waterproof layer 4 can be made of waterproof coating, waterproof membrane, etc. When the waterproof layer 4 is made of waterproof coating, polymer cement-based waterproof coating is preferred, and the coating thickness is 1.5~2mm. When the waterproof layer 4 is made of multiple layers, waterproof coating can be applied to the surface of the waterstop steel plate 2 and the top surface of the structural layer 1 to form a waterproof coating layer, and then a waterproof membrane can be installed on the surface of the waterproof coating layer to form a waterproof membrane layer.

[0029] The leveling layers 6 on both sides of the waterstop steel plate 2 may have equal or unequal heights. When the leveling layers 6 on both sides of the waterstop steel plate 2 have equal heights, the structure of the board layer in the waterstop sill area can prevent water from entering the dry area from the wet area. When the leveling layers 6 on both sides of the waterstop steel plate 2 have unequal heights, the leveling layer 6 on the dry area side is higher than the leveling layer on the wet area side, making the leveling layer 6 on the dry area side higher. This can increase the installation height of the board on the dry area side, making the installed board height in the dry area higher than that in the wet area, further preventing water from the wet area from entering the dry area. The leveling layer 6 is set on top of the waterproof layer 4. The construction height of the leveling layer 6 can be flexibly controlled during construction, reducing the difficulty of controlling the height of the leveling layer 6 and ensuring the height construction requirements of the subsequent board layer. The leveling layer 6 can be made of C20 fine stone concrete or waterproof concrete, and the thickness of the leveling layer 6 is not less than 60mm (preferably 60~80mm, such as one or more of 60mm, 65mm, 70mm, and 75mm).

[0030] Furthermore, a vibration damping and sound insulation pad 5 is also provided between the leveling layer 6 and the waterproof layer 4. At the waterstop steel plate 2, the vibration damping and sound insulation pad 5 extends upward from the leveling layer 6. After the vibration damping and sound insulation pad 5 extends upward from the leveling layer 6, the height of the top surface of the vibration damping and sound insulation pad 5 is not higher than the height of the waterproof layer at the top of the waterstop steel plate 2. The vibration damping and sound insulation pad 5 can block the transmission of vibration and the propagation of sound waves, improve the sound insulation and vibration reduction performance of the building, avoid noise interference between adjacent floors, and improve people's living experience. The vibration damping and sound insulation pad 5 is set between the leveling layer 6 and the waterproof layer 4. The leveling layer 6 can prevent the vibration damping and sound insulation pad 5 from deforming, shifting, or being damaged. Moreover, the structural layer 1 is the main carrier of vibration and sound waves. The vibration damping and sound insulation pad 5 is located above the structural layer 1 and below the leveling layer 6. It can directly absorb the vibration energy of the structural layer 1, block the solid sound transmission path, and improve the sound insulation effect. The thickness of the vibration damping and sound insulation pad 5 is 10~20mm.

[0031] The board layer 8 is installed through the adhesive layer 7. The material of the adhesive layer 7 is determined according to the material of the board to be installed. For example, when the board to be installed is stone, the adhesive layer 7 uses stone adhesive to improve the stability of the board installation.

[0032] The board layer 8 includes a dry area board 80, a water-stopping area board 81, and a wet area board 82. The dry area board 80 is installed on the adhesive layer 7 of the dry area, and the water-stopping area board 81 is installed on the water-stopping area. The water-stopping area board 81 is located on the adhesive layer on top of the water-stopping steel plate 2. One end of the water-stopping area board 81 extends into the dry area, and the other end extends into the wet area. The wet area board 82 is installed on the adhesive layer 7 of the wet area. After the water-stopping area board 81 covers the top of the water-stopping steel plate 2, when the water in the wet area seeps into the bottom of the wet area board 82, the water-stopping steel plate 2 and the waterproof layer 4 can effectively prevent water from entering the dry area.

[0033] When the top height of the leveling layer 6 in the dry area is greater than the top height of the leveling layer 6 in the wet area, the top height of the water-stop panel 81 is equal to the top height of the panel 80 in the dry area. The top height of the water-stop panel 81 is greater than the top height of the panel 82 in the wet area. When there is water accumulation on the surface of the panel 82 in the wet area, the water-stop panel 81 can effectively prevent water from entering the dry area.

[0034] When the top height of the leveling layer 6 in the dry area is equal to the top height of the leveling layer 6 in the wet area, the top height of the board 80 in the dry area is equal to the top height of the board 82 in the wet area, and the top height of the board 81 in the water-stop area is greater than the top height of the board 82 in the wet area. The top of the board 81 in the water-stop area is provided with a slope, which slopes upward from the wet area to the dry area. The slope at the top of the board 81 in the water-stop area can guide the water flow back to the wet area, optimize the waterproof sealing effect, and improve the convenience of construction.

[0035] refer to Figure 2The top of the water-stop panel 81, near the dry area, has a groove. This groove can be used to install a partition door (such as a glass door). The partition door can be opened and closed, separating the dry and wet areas and further preventing water from flowing from the wet area to the dry area. The bottom of the water-stop panel 81 also has a receiving groove, and the top of the water-stop steel plate 2 is located in the receiving groove. When the water-stop steel plate 2 and the water-stop panel are used together, the waterproof effect can be further improved. When a small amount of water enters the top of the adhesive layer 7 from the joint between the water-stop panel 81 and the wet area panel 82, the water-stop steel plate 2 and the water-stop panel 81 work together to effectively prevent water from entering the dry area.

[0036] Furthermore, the waterstop steel plate 2 can also be made of angle steel, as shown in the reference. Figure 3 At this time, the waterstop steel plate 2 includes a horizontal part and a vertical part. The horizontal part of the waterstop steel plate 2 is pre-embedded in the structural layer 1 during the construction of the structural layer 1, and the vertical part of the waterstop steel plate 2 extends vertically out of the structural layer 1. The pre-embedding of the waterstop steel plate 2 in the structural layer 1 can further improve the stability of the combination between the waterstop steel plate 2 and the structural layer 1, and further improve the waterproofing effect. When the waterstop steel plate 2 only includes the vertical part, the waterstop steel plate 2 can also be pre-embedded in the structural layer 1 during the construction of the structural layer 1.

[0037] This invention also provides a water-stopping construction method, which is mainly used in areas with dry and wet separation. The construction method includes the following steps: Step 1: Install the waterstop steel plate 2 on the structural layer 1. The installation location of the waterstop steel plate 2 is determined according to the construction area of ​​the waterstop sill. The waterstop steel plate 2 can be pre-embedded in the structural layer 1 during the construction process, or it can be installed on site. When installing the waterstop steel plate 2 on site, an installation groove 10 is opened on the top surface of the structural layer 1, and then the waterstop steel plate 2 is installed in the installation groove 10, so that the waterstop steel plate 2 is perpendicular to the structural layer 1. Step 2: Construct arc-shaped sections 3 on both sides of the waterstop steel plate 2. The arc-shaped sections 3 are concave in the arc shape and are located at the corner of the structural layer 1 and the waterstop steel plate 2. The arc-shaped sections 3 are made of mortar or C20 fine stone concrete. Step 3: Apply waterproof layer 4 to the surface of structural layer 1, the surface of arc-shaped part 3, and the surface of waterstop steel plate 2. During the application of waterproof layer 4, waterproof coating or waterproof membrane can be applied to the surface of structural layer 1, the surface of arc-shaped part 3, and the surface of waterstop steel plate 2, or waterproof coating can be applied first and then waterproof membrane can be applied on the surface of the waterproof coating. Waterproof layer 4 is mainly applied to the surface of structural layer 1 on the wet side, the surface of arc-shaped part 3 in the waterstop area, and the surface of waterstop steel plate. Waterproof layer 4 can also extend to the surface of structural layer 1 on the dry side. When the dry and wet separation area is entirely a bathroom area, waterproof layer 4 is applied to the surface of structural layer 1 on both the dry and wet sides. When the wet part of the dry and wet separation area is a bathroom area and the dry part is a corridor or bedroom, the boundary between the dry and wet areas is a waterstop area. Waterproof layer 4 is set on the surface of structural layer 1 on the wet side, and waterproof layer 4 extends through the waterstop area to part of the surface of structural layer 1 on the dry side. Step 4: Construct leveling layers 6 on both sides of the waterstop steel plate 2. The height of the leveling layer 6 on the wet side should be slightly lower than that on the dry side (for example, the height of the leveling layer on the wet side should be 5mm lower than that on the dry side). Alternatively, the height of the leveling layer 6 on the wet side can be equal to that on the dry side. A slope can be set on the top surface of the leveling layers 6 on both the wet and dry sides, with the top surface of the leveling layer 6 on the wet side sloping from the waterstop steel plate 2 towards the wall (see reference). Figure 4 (The arrows in the diagram indicate the slope direction). In existing waterproofing construction methods, a base leveling layer is typically constructed on the top surface of the structural layer, followed by a waterproof layer on top of the base leveling layer, and then a mortar leveling layer is constructed on top of the waterproof layer to a predetermined height. With this method, the thickness of the base leveling layer on the top surface of the structural layer is relatively thin (e.g., 5-10mm). When constructing the mortar leveling layer on top of the base leveling layer, the load-bearing capacity of the base leveling layer is insufficient, making it prone to breakage. If the thickness of the base leveling layer is increased, the thickness of the mortar leveling layer will decrease while maintaining the overall floor height, resulting in insufficient overall floor thickness. Therefore, both the base leveling layer and the mortar leveling layer are insufficient in thickness, easily leading to quality problems. In this invention, the waterproof layer is constructed first on the top surface of structural layer 1, followed by the leveling layer on top of the waterproof layer. This not only prevents damage to the leveling layer but also meets the overall floor thickness requirements, thus improving the quality of waterproofing construction. Step 5: Construct the bonding layer 7 on the top surface of the leveling layer 6, and construct the board layer 8 on the top surface of the bonding layer 7. The board layer 8 is preferably made of stone. The board layer 8 includes dry area board 80, water-stop area board 81, and wet area board 82. The dry area board 80 is located on the top surface of the bonding layer 7 in the dry area. The water-stop area board 81 is located on the top of the water-stop steel plate. The opposite sides of the water-stop area board 81 extend from the water-stop steel plate to the wet area side and the dry area side, respectively. The area where the water-stop area board 81 is located is the water-stop area. The wet area board 82 is located on the top surface of the bonding layer 7 in the wet area. After the dry area board 80, water-stop area board 81, and wet area board 82 are installed, the top height of the water-stop area board 81 is higher than the top height of the wet area board 82, and the top height of the dry area board 80 is not greater than the top height of the water-stop area board 81.

[0038] In the aforementioned process, before constructing the leveling layer 6 in step four, vibration damping and sound insulation pads 5 can be pasted on both sides of the waterstop steel plate 2. The vibration damping and sound insulation pads 5 extend from the waterstop steel plate 2 to the structural layer 1 to improve the sound insulation and vibration reduction effect.

[0039] In the aforementioned process, during step two of the construction of the arc-shaped section 3, a water-stopping protrusion 9 is constructed on the top surface of the structural layer 1 on the dry area side. The water-stopping protrusion 9 is made of cement mortar, and its height is less than the overall height of the arc-shaped section 3 (reference). Figure 4 The cross-section of the water-stop protrusion 9 can be rectangular, semi-circular, etc., and the distance between the water-stop protrusion 9 and the arc-shaped part 3 is 20~40mm. During the construction of the waterproof layer 4 in step three, the waterproof layer 4 covers the water-stop protrusion 9. When some surface water crosses the water-stop steel plate 2 and reaches the dry area, it can accumulate between the water-stop protrusion 9 and the water-stop steel plate 2. Under the action of the waterproof layer 4, it can prevent surface water from seeping into the structural layer 1. As time goes by or due to weather factors, the water that seeps between the water-stop protrusion 9 and the water-stop steel plate 2 gradually dries up, thereby preventing the seeping water from spreading to the dry area side and reducing the probability of mold and dampness in adjacent spaces.

[0040] The above description is merely a detailed illustration of specific embodiments of the present invention and is not intended to limit the invention. Various substitutions, modifications, and improvements made by those skilled in the art without departing from the principles and scope of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for constructing a waterproofing system, characterized in that, Includes the following steps: Step 1: Install water-stop steel plate (2) on structural layer (1); Step 2: Construct arc-shaped parts (3) on both sides of the waterstop steel plate (2). The arc-shaped parts (3) are concave in the arc shape and are located at the corner of the structural layer (1) and the waterstop steel plate (2). Step 3: Apply a waterproof layer (4) to the surface of the structural layer (1), the surface of the arc-shaped part (3), and the surface of the water-stop steel plate (2); Step 4: Construct leveling layer (6) on both sides of waterstop steel plate (2); Step 5: Apply adhesive layer (7) on top of leveling layer (6), and apply board layer (8) on top of adhesive layer (7).

2. The water-stopping construction method according to claim 1, characterized in that, The water-stop steel plate (2) is pre-embedded in the structural layer (1) during the construction of the structural layer (1) or installed in the structural layer (1) on site; when the water-stop steel plate (2) is installed in the structural layer (1) on site, an installation groove (10) is opened on the top surface of the structural layer (1), and the water-stop steel plate (2) is installed in the installation groove (10) so that the water-stop steel plate (2) is perpendicular to the structural layer (1).

3. The water-stopping construction method according to claim 1, characterized in that, During the construction of the waterproof layer (4), waterproof coatings and / or waterproof membranes are applied to the surface of the structural layer (1), the surface of the arc-shaped part (3), and the surface of the water-stop steel plate (2).

4. The water-stopping construction method according to claim 1, characterized in that, The installation area where the water-stop steel plate (2) is located is the water-stop sill area. The two sides of the water-stop steel plate (2) are the dry area and the wet area, respectively. On the wet area side, the waterproof layer (4) extends from the surface of the water-stop steel plate (2) to the structural layer (1) and is fully covered on the top surface of the structural layer (1). On the dry area side, the waterproof layer (4) extends from the surface of the water-stop steel plate (2) to the structural layer (1).

5. The water-stopping construction method according to claim 1, characterized in that, The height of the leveling layer (6) on the wet side is not higher than the height of the leveling layer (6) on the dry side.

6. The water-stopping construction method according to claim 4, characterized in that, The plate layer (8) includes a dry area plate (80), a water-stopping area plate (81), and a wet area plate (82). The dry area plate (80) is located on the top surface of the adhesive layer (7) in the dry area. The water-stopping area plate (81) is located on the top of the water-stopping steel plate. The opposite sides of the water-stopping area plate (81) extend from the water-stopping steel plate to the wet area side and the dry area side, respectively. The wet area plate (82) is located on the top surface of the adhesive layer (7) in the wet area.

7. The water-stopping construction method according to claim 6, characterized in that, The top of the water-stopping sill plate (81) is provided with a slope, which slopes upward from the wet area to the dry area; the top surface of the leveling layer (6) is provided with a slope.

8. The water-stopping construction method according to claim 6, characterized in that, The bottom of the water-stopping plate (81) is also provided with a receiving groove, and the top of the water-stopping steel plate (2) is located in the receiving groove.

9. The water-stopping construction method according to claim 1, characterized in that, In step two, during the construction of the arc-shaped part (3), a water-stop protrusion (9) is constructed on the top surface of the structural layer (1) on the dry side; in step three, during the construction of the waterproof layer (4), the waterproof layer (4) is made to cover the water-stop protrusion (9).

10. The water-stopping construction method according to any one of claims 1 to 9, characterized in that, In step four, before constructing the leveling layer (6), vibration damping and sound insulation pads (5) are pasted on both sides of the waterstop steel plate (2), and the vibration damping and sound insulation pads (5) extend from the waterstop steel plate (2) to the structural layer (1).

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