Waterproof structure of basement
Through the double-layer waterproof structure and simplified construction process, the high cost and poor quality of traditional basement floor waterproof design is solved, achieving more efficient and convenient waterproofing effects and longer building life.
Patent Information
- Application Number
- CN202421123448.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-01-03
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The waterproof design of traditional basement floor is high in cost and poor in quality, and it is difficult to locate and repair leakage problems after the waterproof layer is damaged, resulting in construction complexity and maintenance difficulties.
It adopts a double-layer waterproof structure, including single-sided adhesive polymer modified asphalt waterproof roll and pre-paved plastic waterproof roll, and combines built-in seam splitting materials and waterproof additional layers to simplify the construction process and enhance waterproof performance.
Improves waterproofing performance, reduces construction complexity and cost, simplifies maintenance and repair processes, extends building life, and enhances construction adaptability and durability of waterproof layers.
Smart Images

Figure CN222295089U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a waterproof structure of a basement. Background Art
[0002] In building waterproofing design, basement floor waterproofing is the top priority. How to do a good job of basement floor waterproofing directly affects the life cycle of the building. Doing a good job of basement waterproofing plays a role in protecting the safety of people’s lives and property.
[0003] The current underground garage floor waterproofing design is mainly composed of a cushion layer, a waterproof layer, an isolation layer, a fine stone concrete protective layer, and a reinforced concrete structural layer. The characteristics of this approach are that it requires higher construction engineering technology and a better construction environment. It mainly adopts the principle of external waterproofing, but the construction method requires an additional isolation layer and a protective layer in addition to the waterproof layer, and the cushion layer has high flatness requirements. If the waterproof layer is damaged and causes leakage, the leakage is likely to cause "water leakage" hidden dangers under the traditional construction method. Due to the "water leakage" phenomenon, it is not easy to find the real leakage location during repair, which brings great difficulty to later maintenance. Combining the above problems, the traditional basement floor waterproofing method is costly and of poor quality. Utility Model Content
[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a
[0005] The purpose of the utility model is achieved in this way:
[0006] A basement waterproof structure, comprising a basement floor and side walls, wherein the basement floor is provided with a concrete cushion layer, a 1.5 mm thick single-sided polymer modified asphalt waterproofing membrane, a 1.2 mm thick pre-laid plastic waterproofing membrane P type and a reinforced concrete layer in sequence from bottom to top;
[0007] A deformation joint is arranged in the middle of the reinforced concrete layer, and a waterproof additional layer is added to the basement floor corresponding to the deformation joint, and the waterproof additional layer is located above the pre-laid plastic waterproofing membrane P;
[0008] The expansion joint is provided with a partition material, which includes a rubber water stop, a polystyrene foam board caulking and a sealing paste;
[0009] The side wall is connected to the basement floor, the outer wall of the side wall is sequentially provided with a side wall waterproof layer protection layer, a side wall first waterproof layer and a side wall second waterproof layer, and a waterproof additional layer is provided at the junction of the side wall and the basement floor.
[0010] Improve waterproof performance: By using a combination of single-sided polymer modified asphalt waterproofing membrane and pre-laid plastic waterproofing membrane P, a double-layer waterproof structure is formed, which effectively improves the overall waterproof performance. The double-layer waterproof design can better cope with the pressure and erosion of groundwater and reduce the possibility of leakage.
[0011] Reduce construction complexity: The reverse-bonding construction structure, which combines the pre-laid plastic waterproofing membrane type P and the single-sided polymer modified asphalt waterproofing membrane (tireless type), adopts the pre-laid reverse-bonding concrete technology, avoiding the need to set up additional protective layers and isolation layers in traditional practices, thereby simplifying the construction process. This not only reduces the complexity of construction, but also reduces the technical requirements and time required for construction.
[0012] Improve construction efficiency: By quickly pasting two waterproof membranes, the construction efficiency is improved and the construction period is shortened. At the same time, since no additional protective layer and isolation layer are required, the construction steps are simplified and the requirements for construction technology are reduced.
[0013] Reduce costs: By eliminating the additional protective layer and isolation layer, material and labor costs are saved. The use of a double-layer waterproof structure further reduces the cost of subsequent maintenance and repairs, and improves economic benefits.
[0014] Enhanced construction adaptability: The design has low requirements for the construction environment and can adapt to more complex and undesirable construction conditions. This makes waterproof construction more flexible and operable, and suitable for different types of underground projects.
[0015] Easy to maintain and repair: Since the pre-laid membrane in the double-layer waterproof structure is tightly combined with the concrete, if the waterproof layer is damaged or leaking, the leaking point can be easily found and repaired. This effectively solves the problem of difficulty in locating and repairing leakage in traditional waterproof layers, and improves the convenience and reliability of overall maintenance.
[0016] Extend the life of the building: By improving the waterproof performance of the basement floor, the damage to the building structure caused by water intrusion is reduced, the service life of the building is extended, and the safety of people’s lives and property is further protected.
[0017] Optimize the setting of additional waterproof layer: add additional waterproof layer at the deformation joint, combine rubber water stop, polystyrene foam board caulking and sealant joint material design, effectively prevent water seepage at the deformation joint. This optimized design further strengthens the overall waterproof effect of the basement floor.
[0018] The purpose of the utility model can also be solved by the following technical measures:
[0019] Furthermore, the bonding surface of the single-sided polymer-modified asphalt waterproofing membrane faces the pre-laid plastic waterproofing membrane type P, and the sand surface of the pre-laid plastic waterproofing membrane type P faces the concrete cushion layer.
[0020] Enhanced double-layer waterproof performance: The bonding surface of the single-sided polymer modified asphalt waterproof membrane is tightly combined with the pre-laid plastic waterproof membrane P to form a solid double-layer waterproof barrier. The sand surface of the pre-laid membrane faces the concrete cushion layer, so that the waterproof layer is tightly combined with the concrete, further improving the waterproof effect and effectively preventing leakage of underground structures.
[0021] Improve construction efficiency and simplify the process: This design allows the two waterproof membranes to be quickly pasted, simplifies the construction steps, reduces the construction time, and improves the overall construction efficiency. At the same time, it eliminates the need for additional protective layers and isolation layers, simplifies the construction process, and reduces the requirements for construction technology.
[0022] Reduce construction costs: Eliminate additional protective layers and isolation layers, reducing material and labor costs. Through the effective combination of double-layer waterproof structures, not only can costs be saved during the construction phase, but also the cost of later maintenance and repairs can be reduced, thus improving overall economic benefits.
[0023] Improve the durability of the waterproof layer: The sand surface of the pre-laid plastic waterproof membrane is tightly combined with the concrete cushion layer, providing additional friction, increasing the stability and durability of the waterproof layer, and ensuring the reliability of the waterproof layer in long-term use.
[0024] Easy to detect and repair: If the waterproof layer is damaged during construction, it can be repaired in time. The double-layer structure makes it easy to find the damaged position, easy to locate and repair, effectively avoiding the problem of traditional waterproof layer leakage being difficult to detect and repair, and improving maintenance efficiency.
[0025] Adapt to complex construction environment: This design has low requirements on the construction environment and strong adaptability. It can be implemented under various complex and undesirable construction conditions, making waterproof construction more flexible and suitable for different types of underground projects.
[0026] Optimize the waterproof effect of the connection parts: The waterproof layer is perfectly integrated with the building structure at all forms of connection parts to prevent leakage. The additional waterproof additional layer and joint materials further enhance the waterproof effect of the deformation joints and connection parts to ensure the comprehensive waterproofing of the underground structure.
[0027] Extend the service life of the building: By improving the waterproof performance of the basement floor, the damage to the building structure caused by water intrusion is reduced, the service life of the building is extended, and the safety of people’s lives and property is guaranteed.
[0028] The beneficial effects of the utility model are as follows:
[0029] The utility model provides a cost-effective, efficient, conveniently constructed and easily maintained basement floor waterproofing solution by adopting a double-layer waterproof structure and simplifying the construction process, thereby effectively improving the reliability and durability of building waterproofing.
[0030] The utility model provides a highly efficient, economical, easy-to-construct and easy-to-maintain basement floor waterproofing solution by combining a single-sided polymer-modified asphalt waterproofing membrane with a pre-laid plastic waterproofing membrane type P, thereby effectively improving the reliability and durability of building waterproofing. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] Figure 1 Schematic diagram of the waterproof structure of the basement floor.
[0032] Figure 2 Schematic diagram of the deformation joint treatment of the basement floor.
[0033] Figure 3 Schematic diagram of waterproof overlap between wall and basement floor. DETAILED DESCRIPTION
[0034] The utility model is further described below in conjunction with the accompanying drawings and embodiments:
[0035] Example, combined with Figures 1 to 3 As shown, a waterproof structure of a basement includes a basement floor and side walls, wherein the basement floor is provided with a concrete cushion layer 1, a single-sided polymer-modified asphalt waterproofing membrane 2 with a thickness of 1.5 mm, a pre-laid plastic waterproofing membrane P type 3 with a thickness of 1.2 mm, and a reinforced concrete layer 4 in sequence from bottom to top;
[0036] A deformation joint is arranged in the middle of the reinforced concrete layer 4, and a waterproof additional layer 8 is added to the basement floor corresponding to the deformation joint position, and the waterproof additional layer 8 is located above the pre-laid plastic waterproofing membrane P type 3;
[0037] The deformation joint is built with a partition material, which includes a rubber water stop 5, a polystyrene foam board filler 6 and a sealing paste 7;
[0038] The side wall is connected to the basement floor, and the outer wall of the side wall is sequentially provided with a side wall waterproof layer protection layer 11, a side wall first waterproof layer 10 and a side wall second waterproof layer 9, and a waterproof additional layer 8 is provided at the junction of the side wall and the basement floor.
[0039] Furthermore, the bonding surface of the single-sided polymer-modified asphalt waterproofing membrane 2 faces the pre-laid plastic waterproofing membrane P type 3, and the sand surface of the pre-laid plastic waterproofing membrane P type 3 faces the concrete cushion layer 1.
Claims
1. A waterproof structure for a basement, comprising a basement floor and side walls, characterized in that: The basement floor is provided with a concrete cushion layer (1), a single-sided polymer-modified asphalt waterproofing membrane with a thickness of 1.5 mm (2), a pre-laid plastic waterproofing membrane type P with a thickness of 1.2 mm (3), and a reinforced concrete layer (4) in order from bottom to top; A deformation joint is provided in the middle of the reinforced concrete layer (4), and a waterproof additional layer (8) is added to the basement floor corresponding to the deformation joint. The waterproof additional layer (8) is located above the pre-laid plastic waterproofing membrane type P (3); The deformation joint is provided with a partitioning material, the partitioning material comprising a rubber water stop (5), a polystyrene foam board filling (6) and a sealing paste (7); The side wall is connected to the basement floor, the outer wall of the side wall is provided with a side wall waterproof layer protection layer (11), a side wall first waterproof layer (10) and a side wall second waterproof layer (9) in sequence, and a waterproof additional layer (8) is provided at the junction of the side wall and the basement floor.
2. The waterproof structure of the basement according to claim 1, characterized in that: The bonding surface of the single-sided polymer-modified asphalt waterproofing roll (2) faces the pre-laid plastic waterproofing roll P type (3), and the sand surface of the pre-laid plastic waterproofing roll P type (3) faces the concrete cushion layer (1).
