Basement side wall composite waterproof structure and construction method thereof

Abstract

The invention discloses a basement side wall composite waterproof structure and a construction method thereof, and the construction method comprises the following steps: providing a high-strength anti-falling cured rubber asphalt coating and a self-adhesive waterproof coiled material, and treating a to-be-constructed wall base layer; high-strength anti-falling non-curing rubber asphalt paint is sprayed on the side wall body base layer in a large area in a segmented and partitioned mode to form a first waterproof layer; paving a self-adhesive waterproof roll on the sprayed first waterproof layer to form a second waterproof layer, and treating a closing part of the self-adhesive waterproof roll in the second waterproof layer and a lap joint part between the upper roll and the lower roll to prevent the self-adhesive waterproof roll from falling off; by means of the high-strength anti-falling non-cured rubber asphalt waterproof coating and self-adhesion waterproof coiled material composite waterproof technology, the problem of leakage of the basement side wall is effectively solved, and high popularization value is achieved.

Description

Composite Waterproofing Structure and Construction Method for Basement Side Walls Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a composite waterproof structure for basement sidewalls and its construction method. Background Technology

[0002] Basement wall leakage has long been a major quality problem plaguing the construction industry. It not only severely impacts the quality and functionality of buildings but can also lead to other safety issues, potentially threatening the lives and property of homeowners. Traditional non-curing rubber-asphalt waterproof coatings used for basement walls often suffer from weak adhesion and are prone to peeling, leading to leaks in the basement exterior walls. Basement leaks cause significant economic losses for homeowners and construction companies, and are difficult and costly to repair. Therefore, implementing certain technical measures to prevent and resolve leakage problems during the construction process is crucial. Summary of the Invention

[0003] To overcome the shortcomings of existing technologies, this invention provides a composite waterproof structure for basement side walls and its construction method. By using a composite waterproof technology of high-strength, non-curing rubber asphalt waterproof coating and self-adhesive waterproof membrane, the leakage problem of basement side walls can be effectively solved.

[0004] To achieve the above objectives, the present invention provides a composite waterproof structure for basement sidewalls and its construction method, comprising the following steps:

[0005] We provide high-strength, anti-detachment curing rubber asphalt coatings and self-adhesive waterproof membranes, and treat the wall substrate to be constructed.

[0006] High-strength, non-curing, non-shedding rubber asphalt coating is sprayed over a large area in a segmented and zoned manner on the base layer of the side wall to form the first waterproof layer;

[0007] A self-adhesive waterproof membrane is laid on the first waterproof layer after spraying to form a second waterproof layer. The sealing parts of the self-adhesive waterproof membrane in the second waterproof layer and the overlapping joints between the upper and lower rolls are treated to prevent the self-adhesive waterproof membrane from falling off.

[0008] At least one waterproof protective layer shall be installed on the completed second waterproof layer.

[0009] Preferably, before applying a high-strength, non-curing, non-shedding rubber asphalt coating to the wall substrate in a segmented and zoned manner to form the first waterproof layer, at least one additional layer is applied to the corresponding wall substrate at the detailed locations to reinforce the detailed locations.

[0010] Preferably, when reinforcing the details, and the details are at the corner of the basement foundation slab and the exterior wall, two layers of modified bitumen membrane are applied to the additional layer by hot-melt method to form a third waterproof layer, and a self-adhesive waterproof membrane is laid on the third waterproof layer to form a second waterproof layer.

[0011] Preferably, when reinforcing the details, and the details are where the pipe penetrates the wall, when laying the self-adhesive waterproof membrane to form a second waterproof layer, the self-adhesive waterproof membrane is flipped towards the inside of the pipe and extended into the inside of the pipe, with an extension distance of ≥50mm.

[0012] Preferably, when treating the finishing areas of the self-adhesive waterproof membrane in the second waterproof layer and the overlapping seams between the upper and lower membranes, the treatment methods include:

[0013] The self-adhesive waterproof membrane is secured at the joint using a fixing strip and self-tapping screws.

[0014] The lower roll material at the overlap joint is fixed to the first waterproof layer by using a fixing washer and self-tapping screws. The upper roll material at the overlap joint is then covered and pressed down with the self-tapping screws, and then fixed by self-adhesion and auxiliary heat fusion.

[0015] Preferably, after at least one waterproof protective layer is installed on the completed second waterproof layer, fluidized solidified soil is backfilled on the side of the at least one waterproof protective layer opposite to the second waterproof layer.

[0016] A composite waterproof structure for basement sidewalls, characterized in that it is constructed using the construction method described above, wherein the composite waterproof structure for basement sidewalls comprises:

[0017] Side wall structure;

[0018] The first waterproof layer is provided on the wall base layer, and the first waterproof layer is formed by spraying a large area of ​​high-strength anti-fall-off non-curing rubber asphalt coating in a segmented and zoned manner;

[0019] The second waterproof layer is disposed on the first waterproof layer, and the second waterproof layer is made of self-adhesive waterproof membrane.

[0020] At least one waterproof protective layer is provided on the second waterproof layer.

[0021] By adopting the above technical solution, the present invention has the following beneficial effects:

[0022] 1) By using high-strength, non-curing, non-shedding rubber asphalt waterproof coating, an appropriate proportion of multi-functional curing agent is added to the ordinary non-curing ratio. When sprayed at high temperature (above 90 degrees Celsius), it can achieve the performance effect of no flow, sliding, dripping, and no smoke. The coating has a solid content of over 99.8%, strong adhesion, better anti-slip properties, strong ductility (up to 22mm), is not easy to fall off, and has strong fatigue resistance.

[0023] 2) The composite application of 2mm thick high-strength anti-fall-off non-curing rubber asphalt waterproof coating and 3mm thick SBS self-adhesive waterproof membrane has excellent adaptability and self-healing properties to the structure of the substrate, and the waterproof effect is excellent. The length of a single strip of self-adhesive waterproof membrane on the side wall should be controlled at about 3m. It is not easy to fall off when pasted on the non-curing surface. Self-tapping screws and fixing washers are used to fix the overlapping parts of the self-adhesive waterproof membrane instead of waterproof pressure strips to prevent falling off. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 illustrates the waterproofing construction method for the basement sidewall in an embodiment of the present invention.

[0026] Figure 2 illustrates the waterproofing method at the construction joint of the floor in an embodiment of the present invention.

[0027] Figure 3 illustrates the waterproofing method for the post-pouring strip on the exterior wall in an embodiment of the present invention.

[0028] Figure 4 illustrates the additional waterproofing method at the external corner of the side wall in an embodiment of the present invention.

[0029] Figure 5 illustrates the waterproofing method at the corner of the foundation slab and the exterior wall in an embodiment of the present invention.

[0030] Figure 6 illustrates the waterproofing method for the protruding cantilevered structure of the exterior wall in an embodiment of the present invention.

[0031] Figure 7 illustrates the side wall roll material finishing method in an embodiment of the present invention.

[0032] Figure 8 illustrates the waterproofing construction method for the pipe penetration point in an embodiment of the present invention.

[0033] The correspondence between the numbers in the attached diagram is as follows:

[0034] 1- Backfill with fluidized solidified soil; 201- 120mm thick brick wall protective layer; 202- 50mm thick polystyrene board protective layer; 203- Two layers of 5mm thick strip-shaped polyethylene foam sheets; 3- Second waterproof layer; 4- First waterproof layer; 5- Side wall; 6- Additional layer; 7- Construction joint; 8- Reinforced concrete precast slab; 9- Post-pouring strip area; 10- Third waterproof layer; 11- 50mm thick fine aggregate concrete protective layer; 12- Exterior wall; 13- Cantilever slab; 14- First floor exterior wall; 15- 100mm staggered hot-melt termination of the roll insulation; 16- Exterior wall insulation board; 17- Fixing strip; 18- Extruded polystyrene board; 19- Sealant caulking; 20- Roll insulation roll turning point; 21- Sealant; 22- Metal hoop; 23- Waterstop ring; 24- Self-tapping screw; 25- Through-wall pipes; 26- Steel plate waterstop. Detailed Implementation

[0035] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding the present invention, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0036] Please refer to Figures 1 to 8. This embodiment of the invention provides a construction method for a composite waterproof structure for basement sidewalls, including the following steps:

[0037] We provide high-strength, anti-detachment curing rubber asphalt coatings and self-adhesive waterproof membranes, and treat the wall substrate to be constructed.

[0038] High-strength, non-curing, non-peeling rubber asphalt coating is sprayed in a segmented and zoned manner on the base layer of the side wall 5 to form the first waterproof layer 4.

[0039] A self-adhesive waterproof membrane is laid on the first waterproof layer 4 after spraying to form a second waterproof layer 3. The sealing parts of the self-adhesive waterproof membrane in the second waterproof layer 3 and the overlapping joints between the upper and lower rolls are treated to prevent the self-adhesive waterproof membrane from falling off.

[0040] At least one waterproof protective layer shall be installed on the completed second waterproof layer 3.

[0041] Furthermore, before applying a high-strength, non-curing, non-shedding rubber asphalt coating to the wall substrate in a segmented and zoned manner to form the first waterproof layer, at least one additional layer 6 is applied to the corresponding wall substrate at the detailed locations to reinforce the detailed locations.

[0042] Furthermore, when reinforcing specific details, such as the corner between the basement foundation slab and the exterior wall, two layers of modified bitumen membrane are applied to the additional layer 6 using a hot-melt method to form a third waterproof layer 10. A self-adhesive waterproof membrane is then applied to the third waterproof layer 10 to form the second waterproof layer 3. Preferably, when reinforcing specific details, such as the pipe penetration point, when applying the self-adhesive waterproof membrane to form the second waterproof layer 3, the self-adhesive waterproof membrane is flipped inwards towards the inside of the pipe 25 and extends into the interior of the pipe 25, with an extension distance ≥ 50mm.

[0043] It should be noted that in this embodiment, the self-adhesive waterproof membrane is a polyester-based Type II SBS self-adhesive waterproof membrane, and the high-strength, non-curing, anti-detachment rubber asphalt waterproof coating is composed of high-quality petroleum asphalt, functional polymer modifiers, and special additives. At temperatures above 90 degrees Celsius, it achieves performance effects such as no flow, slippage, or dripping, strong adhesion, and no smoke during spraying. It also has better anti-slip properties and is not easily detached. This product never cures after application, always maintaining its original elastic-plastic state; it is a creep-type waterproof coating that does not require film formation.

[0044] Furthermore, in this embodiment, when treating the sealing portion of the self-adhesive waterproof membrane in the second waterproof layer 3 and the overlap joint between the upper and lower membrane sections, the treatment method includes:

[0045] The self-adhesive waterproof membrane is fixed at the end by using a fixing strip 17 and self-tapping screws 24;

[0046] The lower roll material at the overlap joint is fixed to the first waterproof layer 4 by using a fixing washer and self-tapping screws 24. The upper roll material at the overlap joint is covered and pressed down with the self-tapping screws 24, and then fixed by self-adhesion and auxiliary heat fusion.

[0047] Please refer to Figures 1, 3, 5, 6 and 7. In this embodiment, after at least one waterproof protective layer is set on the completed second waterproof layer 3, fluidized solidified soil backfill 1 is carried out on the side of the at least one waterproof protective layer opposite to the second waterproof layer 3.

[0048] The construction process of a composite waterproof structure for basement sidewalls according to an embodiment of the present invention includes the following steps:

[0049] Wall base treatment → Hot-melt heating high-strength anti-detachment non-curing rubber asphalt coating → Detailed additional layer construction → Large-area high-strength anti-detachment non-curing rubber asphalt coating construction → Coating thickness inspection and local reinforcement → Laying self-adhesive waterproof membrane → Overlap joint treatment → Membrane sealing → Inspection and acceptance.

[0050] The key points of the corresponding construction process include:

[0051] 1) Wall substrate treatment: The substrate should be firm, flat, dry, free of dust and oil. Uneven areas and cracks should be filled with polymer mortar. Clean and sweep the substrate before construction, and blow it clean with a high-pressure blower if necessary. The inside and outside corners where the plane and the vertical surface meet, and the roots of pipes penetrating the structure, should all be rounded with a radius of 50mm.

[0052] 2) Construction of detailed additional layer: Apply high-strength, non-curing rubber asphalt waterproof coating to pipe roots, embedded parts, internal and external corners for reinforcement (because the coating and the roll material are not easy to bond, the additional layer should not be a roll material additional layer). The width of the additional layer is 500mm (with non-woven fabric lining). The additional layer should be free of voids and compacted firmly.

[0053] 3) Application of large-area high-strength, anti-detachment, non-curing rubber asphalt coating: When machinery, materials, and equipment are well-coordinated, mechanical spraying should be prioritized to improve work efficiency. For joints, manual scraping is recommended to ensure the size and thickness of the additional layer. The coating should be applied evenly, without any omissions, and should reach the designed thickness. Spraying should be completed in sections or areas, ideally within a 500 m² to 1000 m² area.

[0054] When applying a waterproof coating, the ambient temperature should not be lower than 0℃. If the temperature is lower than 0℃, construction should be suspended or effective measures should be taken to locally raise the temperature and maintain the insulation.

[0055] 4) Coating thickness inspection: After spraying a certain area, use a special wet film thickness gauge to check the coating thickness before laying the waterproof membrane. If the thickness does not meet the standard or local reinforcement is needed, use a trowel to take some coating and manually apply it.

[0056] 5) Laying self-adhesive waterproof membrane: Cover the membrane with the waterproof membrane within 1-4 hours after spraying to prevent excessive dust from adhering to the coating surface and reducing the adhesion between the coating and the waterproof membrane. To prevent stress release from causing membrane twisting and affecting the quality of the waterproofing project, the membrane should be pre-laid during on-site construction. Roll the membrane and lay it on the uncured side, firmly adhering the starting end of the membrane, and then promptly roll the membrane for further laying. One person should then perform the air-explosion and compaction process. After laying, the membrane should be flat, straight, with correct overlap dimensions, and free from twisting. The short-direction overlap seams of two adjacent membrane rolls in the same layer should be staggered by ≥1 / 3 of the roll width, and the longitudinal overlap width should not be less than 100mm.

[0057] 6) Overlap Joint Treatment: The length of a single strip of self-adhesive roofing membrane on the side walls should be controlled within 3.5m. This prevents it from easily detaching from uncured surfaces. For the overlap section, the lower strip of membrane should be secured with a special mechanical fixing washer and corrosion-resistant self-tapping screws to prevent detachment. When laying the upper strip, cover and press down on the self-tapping screws, ensuring an overlap width of at least 150mm. This ensures the screw holes are covered by the membrane, preventing leakage. Simultaneously, the overlap joint should be constructed using a self-adhesive method combined with auxiliary heat fusion. Appropriate heat fusion helps strengthen the bonding strength of the membrane.

[0058] 7) Membrane termination: The termination of the membrane on the side wall facade should be at least 500mm above the outdoor ground level, and should be fixed with a fixing strip and self-tapping screws, and sealed with asphalt-based sealant.

[0059] 8) Inspection and Acceptance: During the construction process, conduct handover inspections of sub-projects in accordance with regulations, accept acceptance from the supervision unit, and accept acceptance from the construction, general contractor, and supervision party before the project is concealed. The next construction process shall not be carried out without inspection.

[0060] This invention also provides a composite waterproof structure for basement side walls, constructed using the aforementioned construction method. The composite waterproof structure includes a side wall 5, a first waterproof layer 4, a second waterproof layer 3, and at least one waterproof protective layer. The first waterproof layer 4 is applied to the wall base and is formed by spraying a high-strength, non-curing, non-shedding rubber asphalt coating over a large area in a segmented manner. The second waterproof layer 3 is applied to the first waterproof layer 4 and is formed by laying a self-adhesive waterproof membrane. At least one waterproof protective layer is applied to the second waterproof layer 3.

[0061] Furthermore, Figures 1 to 8 illustrate the construction details of the side walls and various parts in this embodiment. To clearly show the waterproofing process, the waterproofing components in the figures are indicated by colored lines. Please refer to Figure 1, which shows the waterproofing construction of the basement side wall in this embodiment of the invention. From the outside to the inside of the basement (from left to right in the figure), the components are: fluidized solidified soil backfill 1, 120mm thick brick wall protective layer 201, 50mm thick polystyrene board protective layer 202, second waterproof layer 3 (3mm thick SBS self-adhesive waterproof membrane), first waterproof layer 4 (2mm thick high-strength anti-detachment non-curing rubber asphalt coating), and side wall 5 (reinforced concrete structure).

[0062] Please refer to Figure 2, which shows the waterproofing method at the construction joint of the floor in this embodiment of the invention (it is a partial detail of the side wall, so the waterproof protective layer and the backfill of the fluidized solidified soil are not shown in the figure). From the outside to the inside of the basement (from left to right in the figure), the layers are: the second waterproof layer 3 (3mm thick SBS self-adhesive waterproof membrane), the first waterproof layer 4 (2mm thick high-strength anti-detachment non-curing rubber asphalt coating), the additional layer 6 (2mm thick high-strength anti-detachment non-curing rubber asphalt coating, with non-woven fabric lining. Because the coating and the membrane are not easy to bond, the additional layer should not be a membrane additional layer), and the side wall 5 (reinforced concrete structure). It should be noted that a steel plate waterstop 26 is fixedly connected between the side walls 5 on both sides of the construction joint 7.

[0063] Please refer to Figure 3, which shows the waterproofing method of the post-cast strip on the exterior wall in this embodiment of the invention. From the outside to the inside of the basement (from left to right in the figure), the layers are as follows: 1. Fluidized solidified soil backfill; 2. 50mm thick polystyrene board protective layer; 3. Second waterproof layer (3mm thick SBS self-adhesive waterproof membrane); 4. First waterproof layer (2mm thick high-strength anti-detachment non-curing rubber asphalt coating); 6. Additional layer (2mm thick high-strength anti-detachment non-curing rubber asphalt coating, lined with non-woven fabric. Because the coating and the membrane are not easy to bond, the additional layer should not be a membrane additional layer); 8. Reinforced concrete precast slab; 9. Post-cast strip area (cast using micro-expansion concrete). It should be noted that the post-cast strip area 9 is fixedly connected to the side walls 5 on both sides by steel plate waterstops 26.

[0064] Please refer to Figure 4, which shows the additional waterproofing method at the external corner of the side wall in this embodiment of the invention. Based on the side wall waterproofing structure in Figure 1, an additional layer 6 (2mm thick high-strength anti-detachment non-curing rubber asphalt coating, lined with non-woven fabric) is added between the side wall 5 and the first waterproof layer 4. Because the coating and the roll material are not easy to bond, the additional layer should not be a roll material. The length of the additional layer 6 at this location is 500mm.

[0065] Please refer to Figure 5, which shows the waterproofing method at the corner of the foundation slab and the exterior wall in this embodiment of the invention (at the inside corner). From the outside to the inside of the basement (from left to right in the figure), the layers are as follows: 1. Fluidized solidified soil backfill; 2. 50mm thick polystyrene board protective layer; 3. Second waterproof layer (3mm thick SBS self-adhesive waterproof membrane); 4. Third waterproof layer (double layer in this area, specifically 4mm SBS modified bitumen membrane + 3mm SBS modified bitumen membrane, both applied by hot-melt construction); 5. Additional layer (2mm thick high-strength anti-detachment non-curing rubber asphalt coating, lined with non-woven fabric; since the coating and membrane are not easy to bond, the additional layer should not be a membrane additional layer); 6. Side wall 5 (reinforced concrete structure). It should be noted that a 50mm thick fine stone concrete protective layer 11 is set above the foundation slab in the inside corner area, and the high-strength anti-detachment non-curing rubber asphalt coating of the additional layer 6 needs to extend to the edge of the raft slab. The construction joint 7 at the top is constructed in the same way as in Figure 2.

[0066] Please refer to Figure 6, which shows the waterproofing method for the cantilevered structure of the exterior wall in this embodiment of the invention. The wall construction method for the lower part of the cantilevered end of the cantilever slab is as follows: from the outside to the inside of the basement (from left to right in the figure), the layers are: 1. Fluidized solidified soil backfill; 2. 50mm thick polystyrene board protective layer; 3. Second waterproof layer (3mm thick SBS self-adhesive waterproof membrane, applied by hot-melt construction); 6. Additional layer (3mm thick SBS self-adhesive waterproof membrane); 4. First waterproof layer (2mm thick high-strength anti-falling non-curing rubber asphalt coating); 5. Side wall (this location is a concrete exterior wall). The wall construction method for the area on the side of the cantilever slab opposite to the cantilevered end is the same as the above construction.

[0067] Furthermore, the construction method of the cantilever slab area is as follows: from the outside to the inside of the basement (from bottom to top in the figure), the following layers are: 1. Fluidized solidified soil backfill, 2.5mm thick polystyrene board protective layer, 3. Second waterproof layer (3mm thick SBS self-adhesive waterproof membrane, laid by hot-melt construction, with 3 layers), and 13. Concrete cantilever slab.

[0068] Furthermore, the wall construction method for the upper area of ​​the cantilevered slab is as follows: from the outside to the inside of the basement (from left to right in the figure), the sequence is: fluidized solidified soil backfill 1, 50mm thick polystyrene board protective layer 202, additional layer 6 (3mm thick SBS self-adhesive waterproof membrane), first waterproof layer 4 (2mm thick high-strength anti-detachment non-curing rubber asphalt coating), side wall 5 (this location is a concrete exterior wall), and additional layer 6 (2mm thick high-strength anti-detachment non-curing rubber asphalt coating, lined with non-woven fabric, with a length of 500mm, covering the top corner of the wall; because the coating and the membrane are not easy to bond, the additional layer should not be a membrane additional layer). It should be noted that Figure 6 focuses on showing the waterproofing method, therefore the fluidized solidified soil backfill 1 and the 50mm thick polystyrene board protective layer 202 are not shown in the figure.

[0069] Please refer to Figure 7, which shows the side wall membrane finishing method in this embodiment of the invention. From the outside to the inside of the basement (from left to right in the figure), the layers are: fluidized solidified soil backfill 1, 120mm thick brick wall protective layer 201, 50mm thick polystyrene board protective layer 202, second waterproof layer 3 (3mm thick SBS self-adhesive waterproof membrane), first waterproof layer 4 (2mm thick high-strength anti-detachment non-curing rubber asphalt coating), and side wall 5 (reinforced concrete structure). It should be noted that at this location, both the second waterproof layer 3 and the first waterproof layer 4 need to be turned up (i.e., higher than the outdoor ground level). The floor slab is at least 500mm thick, with a 100mm thick hot-melt termination 14 at the top, extending to the space between the first-floor exterior wall 7 and the exterior wall insulation board 16 (100mm thick). An exterior wall decorative layer 15 (with waterproof effect) is installed on the outside of the exterior wall insulation board 16. Extruded polystyrene boards 18 are installed between the first-floor floor slab and the 50mm thick polystyrene board protective layer 202, and between the upper part of the second waterproof layer 3 and the exterior wall decorative layer 15. Sealant caulking is applied to the joints. The top of the upper part is fixed with a fixing strip 17 and self-tapping screws 24.

[0070] It should be noted that the external wall scaffolding was removed in advance before construction, and mobile scaffolding was used for the external wall waterproofing construction. The waterproof membrane was laid in 3m lengths per strip. The fluidized solidified soil backfill was carried out in a trench and was carried out simultaneously with the waterproofing construction. For every 3m of waterproofing construction, 2.5m of trench backfill was carried out, leaving 0.5m for the joint. This can effectively avoid damage to the finished waterproofing product caused by the removal of the steel pipe external scaffolding and problems such as cracking and falling off of the waterproofing caused by the trench backfill.

[0071] Further, please refer to Figure 8, which shows the waterproof construction method of the pipe penetrating the wall in this embodiment of the invention. The construction method of the walls on both sides of the pipe 25 penetrating the wall (from right to left in the figure) is as follows: additional layer 6 (3mm thick SBS self-adhesive waterproof membrane, 2 layers), second waterproof layer 3 (3mm thick SBS self-adhesive waterproof membrane), first waterproof layer 4 (2mm thick high-strength anti-fall-off non-curing rubber asphalt coating), and side wall 5 (reinforced concrete structure with self-waterproofing effect). The end of the self-adhesive waterproof membrane is turned over towards the inside of the pipe 25 and extends into the interior of the pipe 25, and the extension distance is ≥50mm. The turning point 20 of the membrane is sealed and reinforced with sealant 21 and metal hoop 22. Two layers of 5mm thick polyethylene foam sheet 203 are added to the side of the additional layer 6 facing away from the pipe 25 to form an additional protective layer. A water-stop ring 23 is set on the outer periphery of the pipe 25 and sealed to the side wall 5.

[0072] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and these variations still fall within the protection scope of the present invention.

Claims

1. A construction method for a composite waterproof structure for basement sidewalls, characterized in that, Includes the following steps: Provide high-strength, anti-detachment, curing rubber asphalt coating and self-adhesive waterproof membrane, and treat the wall substrate to be constructed; apply high-strength, anti-detachment, non-curing rubber asphalt coating in sections and zones to the side wall substrate to form the first waterproof layer; lay self-adhesive waterproof membrane on the sprayed first waterproof layer to form the second waterproof layer, and treat the joints of the self-adhesive waterproof membrane in the second waterproof layer and the overlaps between the upper and lower membranes to prevent the self-adhesive waterproof membrane from falling off; set at least one waterproof protective layer z on the completed second waterproof layer.

2. The construction method of the composite waterproof structure for basement sidewalls as described in claim 1, characterized in that... Before applying a high-strength, non-curing, non-shedding rubber asphalt coating to a large area of ​​the wall substrate in a segmented and zoned manner to form the first waterproof layer, at least one additional layer is applied to the corresponding wall substrate in the detailed areas to reinforce these areas.

3. The construction method of the composite waterproof structure for basement sidewalls as described in claim 2, characterized in that, When reinforcing the details, specifically the corner between the basement foundation slab and the exterior wall, two layers of modified bitumen membrane are applied to the additional layer using a hot-melt method to form a third waterproof layer. Then, a self-adhesive waterproof membrane is applied to the third waterproof layer to form the second waterproof layer.

4. The construction method of the composite waterproof structure for basement sidewalls as described in claim 2, characterized in that, When reinforcing details, especially where pipes penetrate walls, when applying self-adhesive waterproof membrane to form a second waterproof layer, the self-adhesive waterproof membrane should be flipped towards the inside of the pipe and extended into the pipe, with an extension distance of ≥50mm.

5. The construction method of the composite waterproof structure for basement sidewalls as described in claim 1, characterized in that, When treating the closure of the self-adhesive waterproof membrane in the second waterproof layer and the overlap between the upper and lower rolls, the treatment methods include: fixing the closure of the self-adhesive waterproof membrane with a fixing strip and self-tapping screws; fixing the lower roll at the overlap with the first waterproof layer with a fixing washer and self-tapping screws; covering the upper roll at the overlap with the self-tapping screws and then fixing it with self-adhesion and auxiliary heat fusion.

6. The construction method of the composite waterproof structure for basement sidewalls as described in claim 1, characterized in that, After at least one waterproof protective layer is installed on the completed second waterproof layer, fluidized solidified soil is backfilled on the side of the at least one waterproof protective layer opposite to the second waterproof layer.

7. A composite waterproof structure for basement sidewalls, characterized in that, The construction is carried out using the construction method of the basement sidewall composite waterproof structure as described in claim 1. The basement sidewall composite waterproof structure includes: a sidewall body; a first waterproof layer, which is disposed on the base layer of the wall body and is formed by spraying a high-strength, non-curing, non-shedding rubber asphalt coating over a large area in a segmented and zoned manner; a second waterproof layer, which is disposed on the first waterproof layer and is formed by laying a self-adhesive waterproof membrane; and at least one waterproof protective layer, which is disposed on the second waterproof layer.

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