Water seepage prevention structure for post-cast strip of basement bottom plate

Abstract

The utility model discloses a basement bottom plate post-cast strip water seepage prevention structure which mainly comprises a post-cast strip, a cushion layer, an upper shaping mesh, a lower shaping mesh and a water stop steel plate, the water stop steel plate comprises a rubber connecting piece and two sub-steel plates, and the rubber connecting piece drives the two sub-steel plates to bend so as to adapt to the impact of concrete. And the water stop steel plate is reset to a horizontal state after concrete pouring, so that the phenomenon that the water stop steel plate inclines or is damaged after being impacted by concrete is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waterproofing of basement floor slabs, in particular to a water seepage prevention structure of a post-cast belt of a basement floor slab. Background Art

[0002] When pouring the basement slab, in order to reduce the impact of building settlement differences and temperature shrinkage of newly poured concrete, the pouring area is usually divided into multiple front-casting strips and back-casting strips. The back-casting strip is set between two adjacent front-casting strips, in which the front-casting strip and the back-casting strip are separated by a shaped mesh, and then the front-casting strip is poured first. After the front-casting strip is poured and the strength reaches the standard, the back-casting strip is poured.

[0003] The post-cast strip structure of the basement floor slab includes, from bottom to top, a foundation pit, a lower concrete cushion layer, a waterproof cushion layer, an upper concrete cushion layer and a post-cast strip anti-seepage structure, wherein the post-cast strip anti-seepage structure includes a post-cast strip and an upper shaped mesh and a lower shaped mesh arranged on both sides of the post-cast strip. The post-cast strip is cast between the shaped meshes on both sides, and the front cast strip is cast outside the shaped meshes on both sides. There is a joint between the front cast strip and the post-cast strip. Therefore, a water-stop steel plate is arranged between the upper and lower shaped meshes, and both ends of the water-stop steel plate are bent away from the surface of the basement floor slab. The two ends of the waterstop steel plate are symmetrically arranged relative to the upper shaped mesh and the lower shaped mesh, so as to prevent groundwater from penetrating into the basement through the joints. The waterstop steel plate is arranged vertically to the two shaped meshes, and the two sides of the supporting steel plate are respectively arranged toward the front pouring area and the rear pouring area. Since there are no supporting devices on both sides of the waterstop steel plate and the waterstop steel plate is a rigid structure, during the pouring of concrete, the waterstop steel plate may be impacted by the concrete, resulting in bending, tilting or even damage, thereby reducing the anti-seepage effect of the waterstop steel plate.

[0004] In the prior art, the utility model patent with application number CN201520081536.0 mentions a structure of a basement post-cast strip, in which a waterstop steel plate is supported on a cushion layer by a plurality of brackets and is welded or tied to a bottom plate steel mesh, thereby supporting the steel plate, making the waterstop steel plate stable and preventing the waterstop steel plate from being deformed or damaged by the impact of concrete.

[0005] However, the following problems still exist:

[0006] 1. Multiple supports are set in the pouring area, which may hinder the flow of concrete and cause the concrete to be unevenly distributed during the pouring process. Especially in areas with dense support structures or complex shapes, the concrete may be difficult to fill completely, which may cause quality problems such as voids and defects in the post-cast slab, affecting the strength and stability of the entire structure.

[0007] Therefore, there is an urgent need for an anti-seepage structure for the post-cast strip of the basement floor slab, which can prevent water seepage in the post-cast strip with little impact on the strength of the concrete, and at the same time improve the situation where the water-stop steel plate is easily deformed or damaged by the impact of concrete. Utility Model Content

[0008] The utility model aims to provide a basement floor post-cast strip water seepage prevention structure, which can prevent water seepage in the post-cast strip with little influence on the concrete strength, and at the same time improve the situation that the water-stop steel plate is easily deformed or damaged by the impact of concrete.

[0009] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0010] A water seepage prevention structure of a post-cast strip of a basement floor, comprising a post-cast strip and a cushion layer, wherein the post-cast strip is arranged on the upper side of the cushion layer, and lower shaped meshes perpendicular to the cushion layer are respectively arranged on both sides of the post-cast strip, a water stop steel plate is arranged on the lower shaped mesh, and an upper shaped mesh is arranged on the water stop steel plate, and the upper shaped mesh and the lower shaped mesh are relatively arranged on both sides of the water stop steel plate, characterized in that:

[0011] The water-stop steel plate comprises a rubber connector and two sub-steel plates, the two sub-steel plates are respectively arranged at two ends of the rubber connector, and the rubber connector is arranged between the upper shaping mesh and the lower shaping mesh.

[0012] Among them, the two sub-steel plates are driven to bend through rubber connectors to adapt to the impact of concrete, and are restored to a horizontal state after the concrete is poured, thereby improving the phenomenon of the water-stop steel plate being tilted or damaged after being impacted by concrete.

[0013] In some embodiments, the two ends of the rubber connector are symmetrical with respect to the lower shaping mesh, the two sub-steel plates are relatively arranged at the two ends of the rubber connector, and one end of the sub-steel plate away from the rubber connector is bent downward.

[0014] In order to ensure a stable connection between the waterstop steel plate and the upper and lower shaping meshes, in a more complete solution, the rubber connector includes a connecting steel plate and two rubber sub-plates. The connecting steel plate is arranged between the upper and lower shaping meshes, and the two rubber sub-plates are respectively connected to the two ends of the connecting steel plate, and the other ends of the two rubber sub-plates are respectively connected to the two sub-steel plates.

[0015] In some embodiments, the two ends of the connecting steel plate are symmetrical relative to the upper shaping mesh and the lower shaping mesh.

[0016] Furthermore, a rubber plate is provided between the water-stop steel plate and the lower shaping mesh, and the rubber plate is in contact with the surface between the two bent ends of the water-stop steel plate.

[0017] In some embodiments, the portion where the rubber plate is connected to the lower shaping mesh is made of steel plate.

[0018] In some embodiments, the connecting steel plate and the rubber plate are plug-connected.

[0019] In some embodiments, a waterproof adhesive layer is provided between the rubber plate and the waterstop steel plate.

[0020] Compared with the prior art, the advantages of the utility model are:

[0021] In the utility model, the two sub-steel plates are driven to bend by the rubber connector to adapt to the impact of concrete, and are reset to a horizontal state after the concrete is poured, thereby improving the phenomenon that the water-stop steel plates are tilted or damaged after being impacted by concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a front cross-sectional view of the anti-seepage structure of the post-cast belt of the basement floor according to the embodiment of the present application;

[0024] Figure 2 It is a front schematic diagram of a water-stop steel plate of a water-proof structure of a post-cast zone of a basement floor according to an embodiment of the present application;

[0025] Figure 3 This is a front cross-sectional view of the connecting steel plate and rubber sub-plate of the anti-seepage structure of the post-cast belt of the basement floor in the embodiment of the present application;

[0026] Figure 4 A side view of a connecting steel plate of a water-proof structure of a post-cast zone of a basement floor according to an embodiment of the present application;

[0027] Figure 5 A side view of a rubber sub-plate of a water seepage prevention structure of a post-cast zone of a basement floor according to an embodiment of the present application;

[0028] Figure 6 A front view schematic diagram of a rubber sheet of a water seepage prevention structure of a post-cast belt of a basement floor according to an embodiment of the present application;

[0029] Figure 7 For the embodiments of this application Figure 1 An enlarged schematic diagram of the part marked A;

[0030] Reference numerals:

[0031] 100- post-casting belt,

[0032] 200- cushion layer,

[0033] 300-upper shaped mesh,

[0034] 400-lower shaped mesh,

[0035] 500-waterproof steel plate, 510-rubber connector, 511-connecting steel plate, 511a-plug rod, 512-rubber sub-plate, 512a-plug hole, 520-sub-steel plate,

[0036] 600-Rubber sheet,

[0037] 700-waterproof adhesive layer,

[0038] 800-pre-pouring strip. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0041] In the description of the present utility model, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model.

[0042] In addition, the terms “first”, “second”, “third”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0043] In addition, the terms "horizontal", "vertical", "overhanging", etc. do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0044] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connection", etc. should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0046] Example 1

[0047] It should be understood that when pouring the basement floor, the pouring area is divided into multiple spaced pouring areas by setting the post-cast strip 100, thereby improving the effects of building settlement differences, temperature shrinkage of newly poured concrete, etc.

[0048] However, after the pouring of the front strip 800 and the back strip 100, the joints between the front strip 800 and the back strip 100 are prone to water seepage, which in turn affects the use of the basement. Therefore, when constructing the back strip 100, various waterproof structures are constructed to improve the water seepage situation.

[0049] Among them, a waterstop steel plate 500 is arranged between the upper shaping mesh 300 and the lower shaping mesh 400 to prevent groundwater infiltration. Since the waterstop steel plate 500 is not provided with a supporting device, it is easily impacted by the poured concrete, resulting in tilting or damage. Therefore, in some designs, a plurality of brackets are provided to support the waterstop steel plate 500. However, a plurality of brackets are arranged in the pouring area, which may hinder the flow of concrete, resulting in uneven distribution of concrete during the pouring process, especially in areas with dense bracket structures or complex shapes, where it may be difficult to completely fill the concrete, which may cause quality problems such as voids and defects in the post-cast slab, affecting the strength and stability of the entire structure.

[0050] Therefore, in order to improve the above-mentioned problem, the present embodiment provides a water-proof structure of the post-cast strip 100 of the basement floor slab, which mainly includes the post-cast strip 100, a cushion layer 200, an upper shaping mesh 300, a lower shaping mesh 400 and a water-stopping steel plate 500, so that the present structure can prevent water seepage in the post-cast strip 100 with little influence on the strength of concrete, and at the same time, improve the situation in which the water-stopping steel plate 500 is easily deformed or damaged by the impact of concrete.

[0051] In this embodiment, the cushion layer is mainly an upper concrete cushion layer, and a waterproof cushion layer, a lower concrete cushion layer and a foundation pit structure are arranged in sequence below the cushion layer to prevent groundwater from penetrating the post-cast strip 100. Since the cushion layer 200 and its lower structure are both existing technologies, they will not be described in detail.

[0052] The post-cast strip 100 is arranged on the upper surface of the cushion layer 200, and concrete can be poured in the post-cast strip 100. An upper shaping mesh 300 and a lower shaping mesh 400 are arranged between the post-cast strip 100 and the front-cast strip 800, wherein the upper shaping mesh 300 and the lower shaping mesh 400 are supported by structures such as temporary supports.

[0053] Among them, Figure 1 As shown, an upper shaping mesh 300 and a lower shaping mesh 400 are provided on both sides of the post-casting strip 100, and a water-stop steel plate 500 is provided between the upper shaping mesh 300 and the lower shaping mesh 400. Specifically, the upper shaping mesh 300 and the lower shaping mesh 400 are both perpendicular to the cushion layer 200. Usually, the basement floor is horizontal, the cushion layer 200 is parallel to the basement floor, and the upper shaping mesh 300 and the lower shaping mesh 400 are perpendicular to the cushion layer 200. The waterstop steel plate 500 is perpendicular to the upper shaping mesh 300 and the lower shaping mesh 400, and the two ends of the waterstop steel plate 500 are respectively arranged on the front casting strip 800 and the back casting strip 100, and the two ends of the waterstop steel plate 500 are symmetrical with respect to the upper shaping mesh 300 and the lower shaping mesh 400, wherein the two ends of the waterstop steel plate 500 are bent downward, which improves the impact resistance of the waterstop steel plate 500 and increases the anti-water seepage area, so that the anti-water seepage effect is better.

[0054] In this embodiment, Figure 1 and Figure 2 As shown, the waterstop steel plate 500 includes a rubber connector 510 and two sub-steel plates 520. Specifically, the two sub-steel plates 520 are arranged at both ends of the rubber connector 510, and the rubber connector 510 is arranged between the upper shaping mesh 300 and the lower shaping mesh 400, wherein the rubber connector 510 is symmetrical with respect to the upper shaping mesh 300 and the lower shaping mesh 400, and the two sub-steel plates 520 are symmetrical with respect to the upper shaping mesh 300 and the lower shaping mesh 400.

[0055] Among them, the two ends of the rubber connector 510 are respectively arranged on the front casting strip 800 and the back casting strip 100, and the two ends of the rubber connector 510 exceed the coverage range of the upper shaping mesh 300 and the lower shaping mesh 400. Among them, the specific length of the rubber connector 510 can be determined according to the length of the water stop steel plate 500 and the width dimensions of the upper shaping mesh 300 and the lower shaping mesh 400.

[0056] Among them, rubber has strong toughness and elasticity, and has strong high temperature resistance and corrosion resistance, so that the waterstop steel plate 500 has strong impact resistance.

[0057] In this embodiment, the rubber connector 510 is arranged between the two sub-steel plates 520, and between the upper shaping mesh 300 and the lower shaping mesh 400. When pouring concrete, when the concrete is poured on the waterstop steel plate 500, due to the setting of the rubber connector 510, if more concrete is poured and the impact is greater, the waterstop steel plate 500 can adapt to the impact of the concrete through the bending of the rubber connector 510. When the concrete pouring is completed or the pouring amount is reduced, the rubber connector 510 can drive the sub-steel plates 520 at both ends to return to their initial positions through its own elasticity and toughness, so that the waterstop steel plate 500 is in a horizontal state and will not be damaged by the concrete. At the same time, since the rubber connector 510 is arranged between the two sub-steel plates 520, it will not occupy additional space in the post-casting strip 100 and the front-casting strip 800, and will not affect the strength and stability of the concrete.

[0058] Among them, one end of the sub-steel plate 520 away from the upper shaping mesh 300 and the lower shaping mesh 400 is bent downward. Specifically, the angle between the bent end and the horizontal end of the sub-steel plate 520 is not greater than 45°.

[0059] Example 2

[0060] According to the structure provided in the above embodiment, in order to stabilize the connection between the water stop steel plate 500 and the upper shaping mesh 300 and the lower shaping mesh 400, in this embodiment, Figure 1 and Figure 2As shown, the rubber connector 510 includes a connecting steel plate 511 and two rubber sub-plates 512, wherein the two rubber sub-plates 512, the connecting steel plate 511 and the sub-steel plate 520 have the same shape, the connecting steel plate 511 is arranged between the upper shaping mesh 300 and the lower shaping mesh 400, and the two ends of the connecting steel plate 511 are symmetrical with respect to the upper shaping mesh 300 and the lower shaping mesh 400, the two rubber sub-plates 512 are connected to the two ends of the connecting steel plate 511, and the other ends of the two rubber sub-plates 512 are respectively connected to the sub-steel plate 520, wherein the two rubber sub-plates 512 are respectively arranged at the front casting strip 800 and the back casting strip 100, and the connecting steel plate 511 is consistent in shape and adapted to the lower end surface of the upper shaping mesh 300 and the upper end surface of the lower shaping mesh 400.

[0061] The connection between the steel plate 511 and the upper shaping mesh 300 and the lower shaping mesh 400 is welded, so that the connection between the water-stop steel plate 500 and the upper shaping mesh 300 and the lower shaping mesh 400 is stable.

[0062] In this embodiment, as 1- Figure 5 As shown, the rubber sub-plate 512 and the connecting steel plate 511 are plugged in. Specifically, the end face of the rubber sub-plate 512 is provided with a plurality of plug-in holes 512a arranged in sequence, and one end of the connecting steel plate 511 is provided with a plurality of plug-in rods 511a arranged in sequence. The plurality of plug-in holes 512a and the plurality of plug-in rods 511a correspond to each other one by one. When the rubber sub-plate 512 is connected to the connecting steel plate 511, the plug-in rods 511a are plugged into the plug-in holes 512a. At the same time, a waterproof adhesive is used to fill and bond the connecting position of the rubber sub-plate 512 and the connecting steel plate 511, so that the connection between the rubber sub-plate 512 and the connecting steel plate 511 is stable and relatively simple. The diameter of the plug-in rods 511a is slightly larger than the plug-in holes 512a, so that the connection between the rubber sub-plate 512 and the connecting steel plate 511 is stable.

[0063] Example 3

[0064] In order to make the water stop steel plate 500 of the above embodiment stable in position and strong in impact resistance, in this embodiment, as shown in FIG. Figure 1 , Figure 6 and Figure 7 As shown, a rubber plate 600 is provided between the waterstop steel plate 500 and the lower shaping mesh 400, wherein the rubber plate 600 is consistent in shape with and adapted to the bent ends of the waterstop steel plate 500, and the upper surface of the connecting steel plate 511 of the waterstop steel plate 500 is welded to the upper shaping mesh 300, and the lower surface of the rubber plate 600 is connected to the lower shaping mesh 400.

[0065] The position where the rubber plate 600 is connected to the lower shaping mesh 400 is made of a steel plate, and the steel plate of the rubber plate 600 is adapted to the lower shaping mesh 400.

[0066] In the present embodiment, the rubber sheet 600 is fitted with the plate ladder surface between the two bent ends of the waterstop steel plate 500, wherein the steel plate of the rubber sheet 600 and the connecting steel plate 511 of the waterstop steel plate 500 are connected by plug-in connection, thereby making the connection between the rubber sheet 600 and the waterstop steel plate 500 simple and stable, and at the same time, the connection between the connecting steel plate 511 and the steel plate of the rubber sheet 600 is assisted by a waterproof adhesive for further improving the connection strength.

[0067] In this embodiment, a waterproof adhesive layer 700 is provided between the rubber plate 600 and the waterstop steel plate 500. Specifically, the surfaces of the waterstop steel plate 500 and the rubber plate 600 are bonded by a waterproof adhesive to form a waterproof adhesive layer 700, thereby making the connection between the waterstop steel plate 500 and the rubber plate 600 stable. At the same time, due to the arrangement of the waterstop steel plate 500, the waterproof adhesive layer 700 and the rubber plate 600, the waterproof effect of the present structure is further enhanced.

[0068] The lower surface of the rubber plate 600 is located above the two ends of the waterproof steel plate 500 that are bent downward, or the lower surface of the rubber plate 600 and the lower surfaces of the two ends of the waterproof steel plate 500 that are bent downward are located on the same horizontal plane.

[0069] In this embodiment, the rubber sheet 600 is arranged on the lower surface of the waterstop steel plate 500 to support the waterstop steel plate 500, so that the waterstop steel plate 500 has a stronger impact resistance. At the same time, the waterstop steel plate 500 is fitted with the rubber sheet 600. The shape of the rubber sheet 600 is consistent with that of the waterstop steel plate 500. The rubber sheet 600 is arranged between the two ends of the waterstop steel plate 500, and the lower surface of the rubber sheet 600 is located on the upper side of the two ends of the waterstop steel plate 500 that are bent downward, or the lower surface of the rubber sheet 600 and the lower surfaces of the two ends of the waterstop steel plate 500 that are bent downward are located on the same horizontal plane. Therefore, the rubber sheet 600 has little effect on the uniform distribution of concrete, and thus will not have a significant impact on the strength and stability of the concrete.

Claims

1. A water seepage prevention structure of a post-cast strip of a basement floor, comprising a post-cast strip (100) and a cushion layer (200), wherein the post-cast strip (100) is arranged on the upper side of the cushion layer (200), and lower shaping mesh sheets (400) perpendicular to the cushion layer (200) are respectively arranged on both sides of the post-cast strip (100), a water stop steel plate (500) is arranged on the lower shaping mesh sheet (400), and an upper shaping mesh sheet (300) is arranged on the water stop steel plate (500), and the upper shaping mesh sheet (300) and the lower shaping mesh sheet (400) are arranged on both sides of the water stop steel plate (500) relatively, characterized in that: The water-stop steel plate (500) comprises a rubber connector (510) and two sub-steel plates (520), wherein the two sub-steel plates (520) are respectively arranged at two ends of the rubber connector (510), and the rubber connector (510) is arranged between the upper shaping mesh (300) and the lower shaping mesh (400).

2. The anti-seepage structure of the post-cast strip of the basement floor according to claim 1 is characterized by: The two ends of the rubber connector (510) are symmetrical with respect to the lower shaping mesh (400), the two sub-steel plates (520) are arranged oppositely at the two ends of the rubber connector (510), and one end of the sub-steel plate (520) away from the rubber connector (510) is bent downward.

3. The anti-seepage structure of the post-cast strip of the basement floor according to claim 2 is characterized by: The rubber connector (510) comprises a connecting steel plate (511) and two rubber sub-plates (512); the connecting steel plate (511) is arranged between the upper shaping mesh (300) and the lower shaping mesh (400); the two rubber sub-plates (512) are respectively connected to two ends of the connecting steel plate (511); and the other ends of the two rubber sub-plates (512) are respectively connected to the two sub-steel plates (520).

4. The anti-seepage structure of the post-cast strip of the basement floor according to claim 3 is characterized by: The two ends of the connecting steel plate (511) are symmetrical relative to the upper shaping mesh (300) and the lower shaping mesh (400).

5. The anti-seepage structure of the post-cast strip of the basement floor according to claim 4 is characterized by: A rubber plate (600) is provided between the water-stop steel plate (500) and the lower shaping mesh sheet (400), and the rubber plate (600) is in contact with the surface between the two bent ends of the water-stop steel plate (500).

6. The anti-seepage structure of the post-cast strip of the basement floor according to claim 5 is characterized by: The portion where the rubber plate (600) is connected to the lower shaping mesh sheet (400) is made of steel plate.

7. The anti-seepage structure of the post-cast strip of the basement floor according to claim 6 is characterized by: The connecting steel plate (511) and the rubber plate (600) are plug-connected.

8. The anti-seepage structure of the post-cast strip of the basement floor according to claim 7 is characterized by: A waterproof adhesive layer (700) is provided between the rubber plate (600) and the water-stop steel plate (500).

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