Anti-seepage construction structure and anti-seepage construction method for basement bottom plate construction joint

Abstract

The invention provides an anti-seepage construction structure and an anti-seepage construction method for a basement bottom plate construction joint, and relates to the field of building construction. The anti-seepage construction structure of the basement bottom plate construction joint comprises a formwork, a first wall body and a second wall body, the formwork is arranged in the direction of the construction joint, the formwork is provided with a plurality of rabbets, an opening of each rabbet faces the upstream face of the construction joint, the first wall body is located on one side of the rabbets, and the second wall body is located on the other side of the rabbets. And the second wall body is positioned on the other side of the rabbet. Water pouring type multiple rabbets are formed during formwork erecting formwork construction, the flowing path of seepage water is prolonged, the seepage direction of underground water is blocked, leakage is reduced, the rabbets face the upstream face of the construction joint, the underground water enters the rabbets during seepage, and therefore the water amount of the underground water is reduced, and the effect of reducing leakage is achieved.

Description

Technical Field

[0001] The present application relates to the field of building construction. Specifically, it relates to a seepage prevention construction structure and method for construction joints of basement floor slabs. Background Technique

[0002] A construction joint refers to a gap left at a certain position during the construction of a building to avoid structural deformation or cracks caused by temperature, dryness, and humidity changes, so as to absorb and release deformation or stress. Basement construction joints are generally concentrated in the basement floor slab and exterior wall parts. The position of the construction joint should be set at a location where the structure is less affected by shear force and convenient for construction. The position of the construction joint left on the basement floor slab is generally set at the middle position between the room wall and the exterior wall. Since the stress at the exterior wall corner is relatively large and cracks are likely to occur, a gap should be left at the corner.

[0003] If the construction joint is not properly treated, the new and old concretes will not be closely bonded, which is likely to become a weak point for leakage. In the treatment of construction joints, generally, before the next concrete pouring, the surface of the construction joint is chiseled, cleaned, and an interface agent such as a cement-based penetrating crystalline waterproof coating is applied to enhance the adhesion between the new and old concretes. At the same time, a water stop steel plate or water stop belt and other water stop structures are also set to prevent groundwater from seeping through the construction joint. The water stop steel plate increases the seepage bypass path of water and also plays a waterproof role. However, for the case where the water stop steel plate is missed or not set due to limited construction conditions, the conventional treatment is to set an expansion water stop belt externally, etc., but the effect is very small. Summary of the Invention

[0004] The purpose of the present application is to provide a seepage prevention construction structure and method for construction joints of basement floor slabs, which form an inverted water multi-tongue and groove during construction, extend the seepage bypass path of water, block the seepage direction of groundwater, and reduce the occurrence of leakage.

[0005] In a first aspect, the present invention provides a seepage prevention construction structure for a construction joint of a basement floor slab. The seepage prevention construction structure includes a formwork, a first wall, and a second wall. The formwork is installed along the direction of the construction joint, and the formwork is provided with a plurality of tongues and grooves, and the opening of each tongue and groove faces the water-facing side of the construction joint. The first wall is located on one side of the tongue and groove, and the second wall is located on the other side of the tongue and groove.

[0006] In an optional embodiment, the formwork includes a groove and a tenon. The side wall of the groove extends to the tenon, and the bottom wall of the groove and the tenon are respectively provided with a plurality of tongues and grooves, and the plurality of tongues and grooves are arranged in a zigzag shape.

[0007] In an optional embodiment, the number of grooves is not less than two, the number of tenons is not less than one, and the total height of the grooves is greater than or equal to twice the total height of the tenons.

[0008] In an alternative embodiment, the anti-seepage construction structure of the basement floor construction joint includes a transverse backing strip, and the transverse backing strip is arranged on the formwork.

[0009] In an alternative embodiment, the anti-seepage construction structure of the basement floor construction joint further includes a connecting piece, and the connecting piece is used to fix the formwork.

[0010] In a second aspect, the present invention provides an anti-seepage construction method for a basement floor construction joint. Based on the anti-seepage construction structure of the basement floor construction joint described in the foregoing embodiments, the anti-seepage construction method includes: assembling the formwork along the direction of the construction joint, pouring concrete on one side of the formwork to form a first wall, pouring concrete on the other side of the formwork to form a second wall. After the concrete of the first wall and the second wall reaches the designed strength, the formwork is removed to form a water-draining type construction joint with multiple keyways.

[0011] In an alternative embodiment, the formwork is prefabricated before assembling the formwork.

[0012] In an alternative embodiment, the formwork is wetted before concrete pouring.

[0013] In an alternative embodiment, after concrete pouring, curing is carried out in a timely manner at a preset temperature and a preset humidity.

[0014] In an alternative embodiment, the concrete at the keyway is vibrated until the concrete is dense.

[0015] Compared with the prior art, the beneficial effects of the present application are as follows:

[0016] In the present application, a water-draining type multi-keyway is formed during formwork construction, which prolongs the flow-around path of seepage water, blocks the seepage direction of groundwater, reduces the occurrence of leakage, and the keyway of the present application opens towards the water-facing side of the construction joint. When groundwater seeps, it enters the keyway, thereby reducing the amount of groundwater and playing a role in reducing leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 The schematic diagram of the anti-seepage construction structure in some embodiments is shown;

[0019] Figure 2Shows the schematic diagram of the connection between the formwork and the transverse backstay in some embodiments.

[0020] Description of main component symbols:

[0021] 100 - Formwork; 110 - Groove; 120 - Tenon; 101 - Tongue - and - groove; 200 - First wall; 300 - Second wall; 400 - Transverse backstay. Detailed implementation manners

[0022] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0023] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. 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 thus should not be construed as a limitation to the present application.

[0024] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0025] In the present application, unless otherwise clearly specified and limited, the terms "install", "connect", "connection", "fix", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between 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.

[0026] In this application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the horizontal height of the first feature is less than that of the second feature.

[0027] Embodiment

[0028] This embodiment is applicable to the construction of the basement floor slab. Since there is a large amount of groundwater below the basement, once the groundwater leaks into the floor slab, it will have an adverse impact on the floor slab. Therefore, the groundwater needs to be blocked.

[0029] Please refer to Figure 1 and Figure 2 , this embodiment provides a seepage prevention construction structure for the construction joint of the basement floor slab. The seepage prevention construction structure for the construction joint of the basement floor slab includes a formwork 100, a first wall 200 and a second wall 300.

[0030] The formwork 100 is installed along the direction of the construction joint, and the formwork 100 is provided with a plurality of rabbets 101. The opening of each rabbet 101 faces the water-facing side of the construction joint. The first wall 200 is located on one side of the rabbet 101, and the second wall 300 is located on the other side of the rabbet 101.

[0031] The formwork 100 includes a groove 110 and a tenon 120. The side wall of the groove 110 extends to the tenon 120. The bottom wall of the groove 110 and the tenon 120 are respectively provided with a plurality of rabbets 101. The plurality of rabbets 101 are arranged in a zigzag shape. The opening of the rabbet 101 faces the water-facing side of the construction joint. When the groundwater seeps, it enters the rabbet 101, thereby reducing the amount of groundwater and playing a role in reducing seepage.

[0032] The number of grooves 110 is not less than two, the number of tenons 120 is not less than one, and the total height of the grooves 110 is greater than or equal to twice the total height of the tenons 120, so as to extend the seepage path of the groundwater. Under the action of the extended seepage path, the amount of groundwater continuously decreases, further achieving the purpose of blocking the seepage of groundwater.

[0033] During construction, the formwork 100 is prefabricated from templates.

[0034] In some embodiments, the seepage prevention construction structure for the construction joint of the basement floor slab further includes a transverse backing strip 400, and the transverse backing strip 400 is arranged on the formwork 100.

[0035] In some embodiments, the anti-seepage construction structure of the basement floor construction joint further includes a connecting member for fixing the formwork 100.

[0036] The above-mentioned horizontal back ribs 400 and the connecting member form a single-sided formwork system, which is simpler and faster in construction, improves construction efficiency, and reduces construction costs.

[0037] Based on the above, the working principle of the anti-seepage construction structure of the basement floor construction joint in this embodiment is further described as follows:

[0038] S100. Assemble the formwork 100 along the direction of the construction joint.

[0039] During actual construction, before assembling the formwork 100, the formwork 100 is prefabricated first. In this embodiment, the formwork 100 is made of Q235 steel, which has good durability and is not easily deformed.

[0040] S200. Pour concrete on one side of the formwork 100 to form the first wall 200, and pour concrete on the other side of the formwork 100 to form the second wall 300.

[0041] Before concrete pouring, the formwork 100 is wetted. After concrete pouring, the concrete at the keyway 101 is vibrated until the concrete is dense, and then it is cured in time at a preset temperature and preset humidity.

[0042] Vibrating the concrete at the keyway 101 can avoid problems such as segregation and honeycombing at the keyway 101, ensure density, and enable the construction joint to function as an expansion joint.

[0043] S300. When the concrete of the first wall 200 and the second wall 300 reaches the design strength, the formwork 100 is removed to form a water-draining construction joint with multiple keyways 101.

[0044] The water-draining multi-keyway 101 design of this embodiment not only plays a waterproof role but also enhances the connection integrity of the concrete structures on both sides of the construction joint (i.e., the first wall 200 and the second wall 300), making the basement floor a more complete and stable whole.

[0045] In addition, this embodiment realizes the function of self-preventing leakage through the construction joint, without the need to set other additional waterproof measures, simplifies the construction structure, effectively prevents the infiltration of groundwater, and ensures the safety and stability of the basement structure.

[0046] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0047] Although the embodiments of this application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting this application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. An anti-seepage construction structure for a basement floor construction joint, characterized in that: The invention comprises a formwork, a first wall and a second wall. The formwork is installed along the direction of the construction joint and is provided with a plurality of tongues and grooves. The opening of each tongue and groove faces the water-facing surface of the construction joint. The first wall is located on one side of the tongue and groove, and the second wall is located on the other side of the tongue and groove.

2. The anti-seepage construction structure of a basement floor construction joint as claimed in claim 1, wherein: The formwork template includes a groove and a tenon, the side wall of the groove extends to the tenon, the bottom wall of the groove and the tenon are respectively provided with a plurality of tongues and grooves, and the plurality of tongues and grooves are arranged in a serrated shape.

3. The anti-seepage construction structure of the basement floor construction joint as claimed in claim 2, characterized in that, The number of the grooves is not less than two, the number of the tenons is not less than one, and the total height of the grooves is greater than or equal to twice the total height of the tenons.

4. The anti-seepage construction structure of the basement floor construction joint according to any one of claims 1 to 3, characterized in that: It also includes a transverse back rib, which is arranged on the formwork template.

5. The anti-seepage construction structure of the basement floor construction joint according to any one of claims 1 to 3, characterized in that: It also includes a connecting piece, which is used to fix the formwork template.

6. A method for anti-seepage construction of basement floor construction joints, characterized in that: Based on the anti-seepage construction structure of the basement floor construction joint as described in any one of claims 1 to 5, the anti-seepage construction method includes: assembling the formwork along the direction of the construction joint, pouring concrete on one side of the formwork to form a first wall, pouring concrete on the other side of the formwork to form a second wall, and when the concrete of the first wall and the second wall reaches the designed strength, removing the formwork to form a pouring-water type construction joint with multiple tongues and grooves.

7. The anti-seepage construction method of basement floor construction joint as claimed in claim 6, characterized in that: Before assembling the formwork, prefabricate the formwork.

8. The anti-seepage construction method of basement floor construction joint as claimed in claim 6, characterized in that: Before pouring concrete, wet the formwork.

9. The anti-seepage construction method of basement floor construction joint as claimed in claim 6, characterized in that: After the concrete is poured, it should be cured in time at the preset temperature and preset humidity.

10. The anti-seepage construction method of basement floor construction joint according to claim 6, characterized in that: Vibrate the concrete at the tongue and groove until the concrete is dense.

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