Underground garage waterproof floor structure
Patent Information
- Application Number
- CN202521821625.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-26
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-08-26
AI Technical Summary
[0004]但是上述一种地下室防水底板,其排水层直接铺设在第一保护层上,结合强度有限,发生渗水时,在水的压力下,容易顶起排水层,造成上浮现象
本实用新型整体的设置,能够使各结构层,相互结合在一起,这样在发生渗水时,不仅能防止结构层上浮,而且能够有效地进行排水,从而使得整体更加安全和可靠。
Smart Images

Figure CN224902246U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building engineering, and in particular to a waterproof base slab structure for underground garages. Background Technology
[0002] The waterproof base slab structure of underground parking garages is the core structural system used in underground parking garage projects to prevent groundwater infiltration, protect the building structure, and keep the interior space dry.
[0003] A search revealed a basement waterproofing slab disclosed in Chinese Patent No. CN 212688992 U, comprising a rigid waterproofing slab, a composite rigid waterproofing layer, and a surface layer stacked sequentially from bottom to top. The composite rigid waterproofing layer includes a cement-based penetrating crystalline waterproof coating layer and a polymer cement mortar layer. The cement-based penetrating crystalline waterproof coating layer is applied to the surface of the rigid waterproofing slab, and the polymer cement mortar layer is applied to the surface of the cement-based penetrating crystalline waterproof coating layer, facing away from the rigid waterproofing slab. This utility model's basement waterproofing slab exhibits excellent waterproofing performance, strong durability, and a long service life.
[0004] However, in the aforementioned type of basement waterproofing slab, the drainage layer is laid directly on the first protective layer, resulting in limited bonding strength. When water seepage occurs, the drainage layer is easily pushed up under water pressure, causing it to float.
[0005] Therefore, it is essential to invent a waterproof base slab structure for underground parking garages with high bonding strength. Utility Model Content
[0006] To solve the above-mentioned technical problems, the present invention provides a technical solution for a waterproof base slab structure for an underground garage: a waterproof base slab structure for an underground garage, comprising a waterproof structural layer, an intermediate structural layer and an upper structural layer, wherein: the intermediate structural layer is cast between the waterproof structural layer and the upper structural layer, and the waterproof structural layer is cast on the foundation; The intermediate structural layer includes a second concrete layer, a reinforcing cage, and a drainage structure. The second concrete layer is poured on top of the waterproof structural layer. A reinforcing cage is poured into the second concrete layer, and a portion of the reinforcing cage protrudes from the second concrete layer. The drainage structure is laid on top of the reinforcing cage and is poured together with the second concrete layer and the reinforcing cage through the upper structural layer. The drainage structure includes an upper support plate, a lower permeable plate, and a support cylinder. Several support cylinders are uniformly fixed between the upper support plate and the lower permeable plate. Both ends of the support cylinders are connected to the outside of the upper support plate and the lower permeable plate. The support cylinders do not contact each other, forming a drainage channel; The upper structural layer is cast together with the concrete layer and the reinforcing cage through the inside of the support cylinder.
[0007] The upper support plate and the lower permeable plate each have a number of through holes that are evenly distributed through them, corresponding to the support cylinder. The top end of the support cylinder extends out of the through hole in the upper support plate, and the bottom end of the support cylinder is fixedly connected to the through hole in the lower permeable plate. The bottom end of the support cylinder does not extend out of the through hole in the lower permeable plate.
[0008] The surface of the upper support plate facing the lower permeable plate is provided with a second waterproof layer.
[0009] The waterproof structural layer includes a first concrete layer and a first waterproof layer. The first concrete layer is poured on the foundation, and the first waterproof layer is placed on the upper surface of the first concrete layer. The first waterproof layer is poured together with the second concrete layer.
[0010] The upper structural layer includes a third concrete layer and a surface layer. The third concrete layer is poured on the upper surface of the drainage structure. The concrete of the third concrete layer flows into the reinforcing cage through the support cylinder and is poured together with the support cylinder, the reinforcing cage, and the second concrete layer. The surface layer is set on the upper surface of the third concrete layer.
[0011] The support cylinder is made of waterproof material.
[0012] Compared with the prior art, the advantages of this utility model are: The overall design of this utility model allows the structural layers to be connected together, which not only prevents the structural layers from floating when water seepage occurs, but also effectively drains water, making the whole structure safer and more reliable. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0014] Figure 2 This is a schematic diagram of the drainage structure of this utility model.
[0015] Figure 3 This is a partially enlarged structural diagram of point A of this utility model.
[0016] In the picture: 1. Concrete layer 1; 2. Waterproof layer 1; 3. Concrete layer 2; 4. Reinforcing cage; 5. Drainage structure; 5. Upper support plate; 5. Lower permeable plate; 5. Support cylinder; 5. Through hole; 5. Concrete layer 3; 6. Surface layer; 7. Foundation; 8. Waterproof layer 2; 9. Detailed Implementation
[0017] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.
[0018] In the description of the embodiments, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present utility model based on the specific circumstances.
[0019] The present invention will be further described below with reference to the accompanying drawings: Example Reference Figure 1-3 A waterproof base slab structure for an underground parking garage includes a waterproof structural layer, an intermediate structural layer, and an upper structural layer, wherein: the intermediate structural layer is poured between the waterproof structural layer and the upper structural layer, and the waterproof structural layer is poured on the foundation 8; Specifically, the intermediate structural layer includes a second concrete layer 3, a reinforcing cage 4, and a drainage structure 5. The second concrete layer 3 is poured on top of the waterproof structural layer. The reinforcing cage 4 is poured into the second concrete layer 3, and a portion of the reinforcing cage 4 protrudes from the second concrete layer 3. The drainage structure 5 is laid on top of the reinforcing cage 4. The drainage structure 5 is poured together with the second concrete layer 3 and the reinforcing cage 4 through the upper structural layer in order to improve the bonding strength between the drainage structure 5 and the structural layer and prevent floating. Specifically, the drainage structure 5 includes an upper support plate 51, a lower permeable plate 52, and a support cylinder 53. Several support cylinders 53 are evenly fixed between the upper support plate 51 and the lower permeable plate 52. Both ends of the support cylinders 53 are connected to the outside of the upper support plate 51 and the lower permeable plate 52. Specifically, the upper support plate 51 adopts existing technology, such as waterproof plastic plate in existing technology, but is not limited to this material, and can also be other materials with the same effect; Specifically, the lower permeable slab 52 is made of permeable concrete, permeable bricks, and other materials; Specifically, the support cylinders 53 do not contact each other, forming a drainage channel so that when water seeps in, the water can be discharged to the appropriate place, such as a drainage ditch, along the drainage channel. Specifically, the upper structural layer is cast together with the concrete layer 2 3 and the steel cage 4 through the inside of the support cylinder 53. This structure can improve the overall support strength and bonding strength.
[0020] Specifically, the upper support plate 51 and the lower permeable plate 52 each have several through holes 54 that are evenly distributed through them, corresponding to the support cylinder 53. The top end of the support cylinder 53 extends out of the through hole 54 of the upper support plate 51 to increase the bonding between it and the concrete layer 6. The bottom end of the support cylinder 53 is fixedly connected to the through hole 54 of the lower permeable plate 52, but the bottom end of the support cylinder 53 does not extend out of the through hole 54 of the lower permeable plate 52 so that the lower permeable plate 52 can be stably placed on the reinforcing cage 4.
[0021] Specifically, a waterproof layer 9 (such as roll waterproofing, coating waterproofing, etc.) is provided on the surface of the upper support plate 51 facing the lower permeable plate 52.
[0022] Specifically, the waterproof structural layer includes concrete layer 1 and waterproof layer 2. Concrete layer 1 is poured on the foundation 8, and waterproof layer 2 is placed on the upper surface of concrete layer 1. Waterproof layer 2 is poured together with concrete layer 3. Waterproof layer 2 adopts existing technologies, such as existing technologies like roll waterproofing and coating waterproofing.
[0023] Specifically, the upper structural layer includes concrete layer 6 and surface layer 7. Concrete layer 6 is poured on the upper surface of drainage structure 5. The concrete of concrete layer 6 flows into steel cage 4 through support cylinder 53 and is poured together with support cylinder 53, steel cage 4 and concrete layer 3. Surface layer 7 is set on the upper surface of concrete layer 6. The surface layer 7 uses existing technologies, such as epoxy floor paint, polyurethane floor paint, acrylic floor paint, or cement floor coating.
[0024] Specifically, the support cylinder 53 is made of waterproof material, such as waterproof and corrosion-resistant plastic material, but it is not limited to this material and can also be other materials with the same effect.
[0025] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.
Claims
1. A waterproof base slab structure for an underground parking garage, characterized in that: It includes a waterproof structural layer, an intermediate structural layer and an upper structural layer, wherein: the intermediate structural layer is poured between the waterproof structural layer and the upper structural layer, and the waterproof structural layer is poured on the foundation (8); The intermediate structural layer includes a second concrete layer (3), a reinforcing cage (4), and a drainage structure (5). The second concrete layer (3) is poured on the waterproof structural layer. The second concrete layer (3) contains a reinforcing cage (4). A portion of the reinforcing cage (4) protrudes from the second concrete layer (3). The drainage structure (5) is laid on the reinforcing cage (4). The drainage structure (5) is poured together with the second concrete layer (3) and the reinforcing cage (4) through the upper structural layer. The drainage structure (5) includes an upper support plate (51), a lower permeable plate (52) and a support cylinder (53). Several support cylinders (53) are uniformly fixed between the upper support plate (51) and the lower permeable plate (52). Both ends of the support cylinder (53) are connected to the outside of the upper support plate (51) and the lower permeable plate (52). Each of the support cylinders (53) does not contact each other, forming a drainage channel; The upper structural layer is cast together with the concrete layer (3) and the steel cage (4) inside the support cylinder (53).
2. The waterproof base slab structure for an underground parking garage as described in claim 1, characterized in that: The upper support plate (51) and the lower permeable plate (52) each have a plurality of through holes (54) that are evenly distributed through the surface of the support cylinder (53). The top end of the support cylinder (53) extends out of the through hole (54) of the upper support plate (51), and the bottom end of the support cylinder (53) is fixedly connected to the through hole (54) of the lower permeable plate (52). The bottom end of the support cylinder (53) does not extend out of the through hole (54) of the lower permeable plate (52).
3. The waterproof base slab structure for an underground parking garage as described in claim 2, characterized in that: The upper support plate (51) has a waterproof layer 2 (9) on its surface facing the lower permeable plate (52).
4. The waterproof base slab structure for an underground parking garage as described in claim 1, characterized in that: The waterproof structural layer includes a concrete layer (1) and a waterproof layer (2). The concrete layer (1) is poured on the foundation (8), and the waterproof layer (2) is set on the upper surface of the concrete layer (1). The waterproof layer (2) is poured together with the concrete layer (3).
5. The waterproof base slab structure for an underground parking garage as described in claim 2, characterized in that: The upper structural layer includes a concrete layer three (6) and a surface layer (7). The concrete layer three (6) is poured on the upper surface of the drainage structure (5). The concrete of the concrete layer three (6) flows into the steel cage (4) through the support cylinder (53) and is poured together with the support cylinder (53), the steel cage (4) and the concrete layer two (3). The surface layer (7) is set on the upper surface of the concrete layer three (6).
6. The waterproof base slab structure for an underground parking garage as described in claim 5, characterized in that: The support cylinder (53) is made of waterproof material.
Citation Information
Patent Citations
Basement waterproof bottom plate
CN212688992U