Waterproof structure for basement exterior wall post-cast strip
By pre-embedding of wooden strips and inlaid expansion water stop strips in the basement exterior wall back pouring belt construction, combined with the use of water-stop steel plates, precast concrete arch walls and waterproof coils, the problem of severe water seepage in the basement exterior wall back pouring belt is solved, and the waterproof performance is significantly improved.
Patent Information
- Application Number
- CN202422196758.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-09-09
AI Technical Summary
There is a serious problem of seepage in the construction of the rear pouring belt of the existing basement exterior wall. The main reason is that the uneven settlement of the foundation and the anti-floating foundation cause excessive settlement of the concrete on both sides of the rear pouring belt, resulting in cracks and leakage.
A waterproof structure including water-stop steel plate, embedded wooden strips, expanded water-stop strips, precast concrete arch walls and waterproof coils are adopted. The embedded wooden strips are pre-embedded on the outside of the concrete layer of the exterior wall to form grooves to inlaid the expansion water stop strips, increasing the adhesion between the concrete, and enhancing the waterproof effect through precast concrete arch walls and waterproof rolls.
It effectively enhances the waterproof performance of the basement exterior wall back pouring strip, solves the problem of serious water seepage, and improves the overall waterproof effect.
Smart Images
Figure CN222990795U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of construction, and particularly to a waterproof structure for the post-cast strip of the basement exterior wall. Background Art
[0002] With the widespread application of functional basements such as underground shopping malls and underground parking lots, the construction problems of post-cast strips have gradually become prominent. In domestic post-cast strip construction, micro-expansion concrete is often poured in the post-cast strip. The micro-expansion concrete can be integrated with the concrete on both sides of the post-cast strip to achieve a good waterproof effect. However, years of engineering practice have shown that the post-cast strip area is still a frequent area where water seepage and leakage occur. The main reason is that uneven settlement of the foundation and effects such as anti-floating of the foundation cause excessive settlement of the concrete on both sides of the post-cast strip, resulting in cracking and thus leakage.
[0003] However, most of the post-cast strips of the basement exterior wall constructed by traditional construction techniques have serious water seepage and cannot stop water. Therefore, a structure that is easy to obtain and easy to implement on-site is needed to improve the waterproof performance of the post-cast strip of the basement exterior wall. Utility Model Content
[0004] One of the purposes of the present application is to provide a waterproof structure for the post-cast strip of the basement exterior wall, aiming to solve the problem of low waterproof performance of the existing post-cast strip of the basement exterior wall.
[0005] The technical solution of the present application is as follows:
[0006] A waterproof structure for the post-cast strip of the basement exterior wall includes a waterstop steel plate, embedded wooden strips, an expanding waterstop strip, a precast concrete arch wall, and a waterproof coiled material; the waterstop steel plate is arranged between the exterior wall concrete layer and the post-cast strip; the embedded wooden strips are detachably embedded in the outer side of the exterior wall concrete layer to form a groove on the outer side of the exterior wall concrete layer; the expanding waterstop strip is embedded in the groove; the precast concrete arch wall surrounds the periphery of the post-cast strip concrete layer; the waterproof coiled material surrounds the periphery of the precast concrete arch wall.
[0007] As a technical solution of the present application, the embedded wooden strips are 100 mm away from the post-cast strip.
[0008] As a technical solution of the present application, the size of the embedded wooden strips is 18 mm × 40 mm.
[0009] As a technical solution of the present application, there are two embedded wooden strips, which are respectively embedded in the outer sides of the exterior wall concrete layer on both sides of the post-cast strip.
[0010] As a technical solution of the present application, the opening of the waterstop steel plate faces the water-facing side.
[0011] As a technical solution of the present application, the size of the expansion water stop strip is equal to the size of the embedded wooden strip.
[0012] Advantages of the present application:
[0013] In the waterproof structure for the post-cast strip of the basement exterior wall of the present application, during the construction of the post-cast strip of the basement exterior wall, an 18 mm × 40 mm embedded wooden strip is pre-embedded 100 mm away from the post-cast strip to prepare for the subsequent inlay of the expansion water stop strip. Then, after the concrete is poured and the formwork is removed and the embedded wooden strip is taken out, the concrete surface on both sides of the groove is chiseled to increase the adhesion between the later-poured concrete and the previously-poured concrete, so as to enhance the waterproof effect. Next, the expansion water stop strip is inlaid and the precast concrete arch wall is fixed. Then, the exterior wall waterproofing is constructed. Finally, a retaining wall is built or a waterproof coiled material is pasted to protect the overall waterproof layer from being damaged; this structure can effectively enhance the waterproof performance of the post-cast strip of the basement exterior wall and solve the problem of serious water seepage in the post-cast strip of the basement exterior wall. Description of the drawings
[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.
[0015] Figure 1 It is a schematic diagram of the waterproof structure for the post-cast strip of the basement exterior wall provided by the embodiment of the present application.
[0016] Reference numerals: 1 - water stop steel plate; 2 - post-cast strip; 3 - embedded wooden strip; 4 - precast concrete arch wall; 5 - waterproof coiled material; 6 - exterior wall concrete layer. Specific embodiments
[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.
[0018] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the present application to be protected, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present application.
[0019] It should be noted that like reference numerals and letters refer to like items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0020] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.
[0021] In addition, in the present application, unless otherwise clearly specified and limited, the first feature being above or below the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being above, over, and on the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being below, under, and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.
[0022] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging, but may be slightly inclined. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but may be slightly inclined.
[0023] In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "arranged", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0024] Embodiment:
[0025] Please refer to Figure 1, this application provides a waterproof structure for the post-cast strip of the basement exterior wall, including a water-stop steel plate 1, embedded wooden strips 3, an expanding water-stop strip, a precast concrete arch wall 4, and a waterproof coiled material 5; the water-stop steel plate 1 is arranged between the exterior wall concrete layer 6 and the post-cast strip 2, and its opening faces the water-facing side; the embedded wooden strips 3 are detachably embedded in the outer side of the exterior wall concrete layer 6 to form a groove on the outer side of the exterior wall concrete layer 6; the expanding water-stop strip is embedded in the groove, and its size is equal to that of the embedded wooden strip 3, so that the expanding water-stop strip can be embedded into the groove after the embedded wooden strip 3 is taken out; the precast concrete arch wall 4 surrounds the periphery of the post-cast strip 2 concrete layer; the waterproof coiled material 5 surrounds the periphery of the precast concrete arch wall 4.
[0026] It should be noted that the embedded wooden strip 3 is 100 mm away from the post-cast strip 2 to prepare for embedding the expanding water-stop strip later.
[0027] It should be noted that in this embodiment, there are two embedded wooden strips 3, which are respectively embedded in the outer sides of the exterior wall concrete layer 6 on both sides of the post-cast strip 2. And the size of the embedded wooden strip 3 is 18 mm × 40 mm. The embedded wooden strip 3 is removed after the concrete pouring of the basement exterior wall post-cast strip 2 is completed and the formwork is removed, so as to form a groove on the outer side of the exterior wall concrete layer 6. After the embedded wooden strip 3 is taken out, the concrete surfaces on both sides of the groove are chiseled to increase the adhesion between the later-poured concrete and the previously-poured concrete, so as to enhance the waterproof effect. The expanding water-stop strip is embedded in the groove only after the chiseling treatment on both sides of the groove.
[0028] It should be noted that in this embodiment, the outer surface of the exterior wall concrete layer 6 is treated by roughening. The precast concrete arch wall 4 is fixed after the expanding water-stop strip is embedded, and then the waterproofing of the basement exterior wall is constructed.
[0029] The construction process of this structure is as follows:
[0030] During the construction of the basement exterior wall post-cast strip 2, embed 18 mm × 40 mm embedded wooden strips 3 at a distance of 100 mm from the post-cast strip 2 to prepare for embedding the expanding water-stop strip later. Then, after the concrete pouring is completed and the formwork is removed, take out the embedded wooden strips 3 and chisel the two sides of the groove to increase the adhesion between the later-poured concrete and the previously-poured concrete to enhance the waterproof effect. Then, embed the expanding water-stop strip and fix the precast concrete arch wall 4. Then, construct the exterior wall waterproofing. Finally, build a retaining wall or paste the waterproof coiled material 5 to protect the overall waterproof layer from being damaged.
[0031] In summary, in the waterproof structure for the post-cast strip of the basement exterior wall of the present application, during the construction of the post-cast strip 2 of the basement exterior wall, embedded wooden strips 3 with a size of 18 mm × 40 mm are pre-embedded at a distance of 100 mm from the post-cast strip 2 to prepare for the later inlay of the expansion waterstop strip. Then, after the concrete is poured and the formwork is removed, the embedded wooden strips 3 are taken out, and the two sides of the groove are chiseled to increase the adhesion between the later-poured concrete and the previously-poured concrete, so as to enhance the waterproof effect. Next, the expansion waterstop strip is inlaid and the precast concrete arch wall 4 is fixed. Then, the exterior wall waterproofing is applied. Finally, a retaining wall is built or a waterproof coiled material 5 is pasted to protect the overall waterproof layer from being damaged; this structure can effectively enhance the waterproof performance of the post-cast strip 2 of the basement exterior wall and solve the problem of serious water seepage in the post-cast strip 2 of the basement exterior wall.
[0032] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.
Claims
1. A waterproof structure for post-cast strips of basement exterior walls, characterized in that: It includes a waterstop steel plate, embedded wooden strips, an expansion waterstop strip, a precast concrete arch wall and a waterproof membrane; the waterstop steel plate is arranged between the exterior wall concrete layer and the post-cast strip; the embedded wooden strips are detachably embedded in the outer side of the exterior wall concrete layer to form a groove on the outer side of the exterior wall concrete layer; the expansion waterstop strip is embedded in the groove; the precast concrete arch wall is arranged around the outside of the post-cast strip concrete layer; the waterproof membrane is arranged around the outside of the precast concrete arch wall.
2. The waterproof structure for post-cast strips of basement exterior walls according to claim 1 is characterized in that: The pre-buried wood strip is 100 mm away from the post-cast strip.
3. The waterproof structure for post-cast strips of basement exterior walls according to claim 1 is characterized in that: The size of the embedded wooden strip is 18mm×40mm.
4. The waterproof structure for post-cast strips of basement exterior walls according to claim 1 is characterized in that: The embedded wooden strips include two and are respectively embedded in the outer side of the exterior wall concrete layer at both sides of the post-cast strip.
5. The waterproof structure for post-cast strips of basement exterior walls according to claim 1 is characterized in that: The opening of the water-stop steel plate faces the water-facing surface.
6. The waterproof structure for post-cast strips of basement exterior walls according to claim 1, characterized in that: The size of the expansion water stop strip is equal to the size of the embedded wooden strip.