Basement post-cast strip anti-seepage structure

Abstract

The utility model relates to a basement post-cast strip anti-seepage structure, which belongs to the technical field of anti-seepage structures and comprises a bottom plate layer, and a pouring groove is arranged in the middle of the upper surface of the bottom plate layer. According to the basement post-cast strip anti-seepage structure, when earthwork of a basement bottom plate is excavated, the position of a post-cast strip exceeds the depth needed by excavation, no less than two first gravel layers are located between every two adjacent prefabricated concrete slabs, then a waterproof layer is arranged on the upper surface of the anti-seepage layer, and then a sound insulation layer is arranged on the upper surface of the waterproof layer; and then the reinforced concrete bottom plate layer is poured, the steel plate water stop plate is installed, after the specified age is reached, the steel plate water stop plate is poured into the pouring groove of the post-pouring belt through concrete, and the structural strength of the anti-seepage structure can be improved through the arranged prefabricated concrete plate, the second gravel layer and the at least two first gravel layers; deformation and collapse are not prone to occurring, and the stability of the anti-seepage structure is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of anti -infiltration structure, concretely to a basement post -cast strip anti -infiltration structure. BACKGROUND

[0002] The post-cast strip is a temporary construction joint left at the corresponding position of the foundation slab, wall or beam in construction to prevent harmful cracks in cast-in-place reinforced concrete structures caused by uneven shrinkage or uneven settlement, and is required by design or construction specifications. The post-cast strip temporarily divides the structure into several parts, and after the internal shrinkage of the components, the construction joint is poured and vibrated with concrete after a certain period of time, connecting the structure into a whole. The width of the post-cast strip is generally 700-1000mm.

[0003] The post-cast strip of the basement is a critical part. Leaking water is a common quality problem that is difficult to cure and requires a lot of manpower, material and financial resources to deal with, especially at the position of the post-cast strip of the bottom plate, due to the rich underground water and quality defects of the post-cast strip itself.

[0004] For example, the Chinese patent CN210975902U discloses a basement post-cast strip anti-infiltration structure, which includes a bottom plate, a pouring space for the post-cast strip is formed in the middle of the bottom plate by sinking, and a drainage structure is arranged at the position corresponding to the post-cast strip below the bottom plate. The utility model adopts the form of a sunken post-cast strip + drainage structure, and the sunken post-cast strip has good anti-infiltration effect. The arrangement of the drainage structure can drain underground water at any time, play a water "draining" role, prevent underground water from infiltrating the post-cast strip, and achieve ideal anti-infiltration effect.

[0005] Although the above-mentioned patent plays a water "draining" role, prevents underground water from infiltrating the post-cast strip, and achieves ideal anti-infiltration effect, the blind ditch in the patent is composed of a plastic core body wrapped with filter cloth, and the structural strength of plastic is generally, which is prone to deformation and collapse after a long time, reducing the practicality. UTILITY MODEL CONTENTS

[0006] In view of the deficiencies of the prior art, the utility model provides a basement post-cast strip anti-infiltration structure, which has the advantages of improving the stability of the anti-infiltration structure and being not prone to collapse, and solves the problem of the blind ditch being composed of a plastic core body wrapped with filter cloth, the structural strength of plastic being generally, and the blind ditch being prone to deformation and collapse after a long time, reducing the practicality.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a basement post-cast strip anti-infiltration structure, which comprises a bottom plate layer, a pouring groove is formed in the middle of the upper surface of the bottom plate layer, a water stop plate is arranged on the bottom wall of the inner cavity of the pouring groove, and a connecting mechanism is arranged on the lower surface of the bottom plate layer.

[0008] The connecting mechanism comprises a sound insulation layer, a waterproof layer, an anti-permeation layer, a plurality of prefabricated concrete slabs, a plurality of first gravel layers, a prefabricated concrete layer, a plurality of hydrophobic holes and a second gravel layer, the sound insulation layer is arranged on the lower surface of the bottom layer, the waterproof layer is arranged on the lower surface of the sound insulation layer, the anti-permeation layer is arranged on the lower surface of the waterproof layer, the plurality of prefabricated concrete slabs are arranged on the upper surface of the prefabricated concrete layer, the plurality of prefabricated concrete slabs are arranged on the lower surface of the anti-permeation layer, and the plurality of first gravel layers are arranged on the upper surface of the prefabricated concrete layer.

[0009] By adopting the technical scheme, the stability of the anti-permeation structure is improved, and collapse is less likely to occur.

[0010] Further, the plurality of hydrophobic holes are arranged on the front surface of the prefabricated concrete layer, and the second gravel layer is arranged on the lower surface of the prefabricated concrete layer.

[0011] By adopting the technical scheme, the prefabricated concrete layer can be supported by the second gravel layer.

[0012] Further, the plurality of hydrophobic holes are uniformly distributed on the front surface of the prefabricated concrete layer.

[0013] By adopting the technical scheme, the underground water can be drained through the plurality of hydrophobic holes.

[0014] Further, the waterproof layer is a high polymer modified asphalt waterproof roll material.

[0015] By adopting the technical scheme, the waterproof property of the post-pouring belt can be improved.

[0016] Further, the anti-permeation layer is a high-density polyethylene film.

[0017] By adopting the technical scheme, the anti-permeation property of the post-pouring belt can be improved.

[0018] Further, the sound insulation layer is a polyester fiber cotton layer.

[0019] By adopting the technical scheme, the sound caused by the underground water flowing in the plurality of hydrophobic holes can be insulated.

[0020] Further, the plurality of prefabricated concrete slabs are uniformly distributed on the upper surface of the prefabricated concrete layer.

[0021] By adopting the technical scheme, the construction period can be shortened by the prefabricated concrete slabs and the prefabricated concrete layer.

[0022] Further, the bottom layer is a reinforced concrete layer.

[0023] By adopting the technical scheme, the structural strength of the post-cast strip anti-seepage structure is improved, and cracks are not prone to occur.

[0024] Compared with the prior art, the technical scheme of the application has the following beneficial effects:

[0025] The basement post-cast strip anti-seepage structure is characterized in that, when the basement bottom plate is excavated, the post-cast strip position is excavated to a required depth, then the second gravel layer is filled into the pit, the upper surface of the second gravel layer is provided with the prefabricated concrete layer, the upper surface of the prefabricated concrete layer is provided with the prefabricated concrete plate with a number not less than two, the upper surface of the prefabricated concrete layer is filled with the first gravel layer with a number not less than two, and the first gravel layers with a number not less than two are located between adjacent two prefabricated concrete plates, then the anti-seepage layer is arranged on the upper surfaces of the prefabricated concrete plates with a number not less than two, then the waterproof layer is arranged on the upper surface of the anti-seepage layer, then the sound insulation layer is arranged on the upper surface of the waterproof layer, and then the reinforced concrete bottom plate layer is poured, including the installation of the steel plate water stop plate, after a specified age, the concrete is poured in the post-cast strip pouring groove, and the prefabricated concrete plate and the second gravel layer and the first gravel layers with a number not less than two can improve the structural strength of the anti-seepage structure, and the anti-seepage structure is not prone to deformation and collapse, and the stability of the anti-seepage structure is improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a structural schematic view of the utility model;

[0027] Figure 2 It is a connecting mechanism schematic view of the utility model;

[0028] Figure 3 It is a connecting structure schematic view of the prefabricated concrete plate and the prefabricated concrete layer of the utility model.

[0029] In the drawing: 1, bottom plate layer; 2, pouring groove; 3, water stop plate; 4, connecting mechanism; 41, sound insulation layer; 42, waterproof layer; 43, anti-seepage layer; 44, prefabricated concrete plate; 45, first gravel layer; 46, prefabricated concrete layer; 47, water hole; 48, second gravel layer. DETAILED DESCRIPTION

[0030] The technical scheme in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection range of the utility model.

[0031] Please refer toFigure 1 The basement post-cast strip anti-seepage structure in the embodiment comprises a bottom plate layer 1, a pouring groove 2 is formed in the middle of the upper surface of the bottom plate layer 1, a water stop plate 3 is arranged on the bottom wall of the inner cavity of the pouring groove 2, and a connecting mechanism 4 is arranged on the lower surface of the bottom plate layer 1.

[0032] Please refer to Figures 2 to 3 In order to improve the stability of the anti-seepage structure and prevent collapse, the connecting mechanism 4 in the embodiment comprises an acoustic insulation layer 41, a waterproof layer 42, an anti-seepage layer 43, a plurality of prefabricated concrete plates 44, a plurality of first gravel layers 45, a prefabricated concrete layer 46, a plurality of hydrophobic holes 47 and a second gravel layer 48, the acoustic insulation layer 41 is arranged on the lower surface of the bottom plate layer 1, the groundwater can be dredged through the plurality of hydrophobic holes 47, the groundwater can be drained through the plurality of hydrophobic holes 47, the water can be drained through the pouring groove 2 in the early stage, a water pump can be arranged in the pouring groove 2 to drain the water in the pouring groove 2, and the waterproof performance of the basement post-cast strip can be improved through the waterproof layer 42 and the anti-seepage layer 43.

[0033] In the embodiment, the waterproof layer 42 is arranged on the lower surface of the acoustic insulation layer 41, the anti-seepage layer 43 is arranged on the lower surface of the waterproof layer 42, the plurality of prefabricated concrete plates 44 are arranged on the upper surface of the prefabricated concrete layer 46, the plurality of prefabricated concrete plates 44 are arranged on the lower surface of the anti-seepage layer 43, the plurality of first gravel layers 45 are arranged on the upper surface of the prefabricated concrete layer 46, and the prefabricated concrete layer 46 and the plurality of prefabricated concrete plates 44 can be made in advance to shorten the construction period.

[0034] In the embodiment, when the basement bottom plate soil is excavated, the post-cast strip position needs to be excavated to a certain depth, then the second gravel layer 48 is filled into the pit, the prefabricated concrete layer 46 is arranged on the upper surface of the second gravel layer 48, the plurality of prefabricated concrete plates 44 are arranged on the upper surface of the prefabricated concrete layer 46, then the plurality of first gravel layers 45 are filled into the upper surface of the prefabricated concrete layer 46, the plurality of first gravel layers 45 are arranged between the adjacent two prefabricated concrete plates 44, and then the anti-seepage layer 43 is arranged on the upper surface of the plurality of prefabricated concrete plates 44.

[0035] In the embodiment, the hydrophobic holes 47 are arranged on the front surface of the precast concrete layer 46, the second gravel layer 48 is arranged on the lower surface of the precast concrete layer 46, the hydrophobic holes 47 are evenly distributed on the front surface of the precast concrete layer 46, the waterproof layer 42 is a high polymer modified asphalt waterproof roll material, the anti-permeation layer 43 is a high-density polyethylene film, the sound insulation layer 41 is a polyester fiber cotton layer, the precast concrete slabs 44 are evenly distributed on the upper surface of the precast concrete layer 46, the bottom plate layer 1 is a reinforced concrete layer, the polyester fiber cotton layer has many advantages, such as high breaking strength and elastic modulus, moderate resilience, excellent heat setting effect, good heat resistance and light resistance, the melting point thereof is about 255℃, the glass transition temperature thereof is about 70℃, and the shape is stable under a wide range of use conditions.

[0036] In the embodiment, the high polymer modified asphalt waterproof roll material is referred to as a modified asphalt waterproof roll material, commonly known as modified asphalt felt, and is a rollable sheet-shaped waterproof material made of glass felt, polyester felt, jute cloth, polyethylene film and polyester non-woven fabric, metal foil or two composite materials as a base, a synthetic high polymer modified asphalt, oxidized asphalt with a content of not less than 10% as a dipping material, and a powdery, flaky and granular mineral material, a synthetic high polymer film and a metal film as a surface material. The polymer modified asphalt is modified by adding rubber or plastic resin to asphalt. Due to the inherent shortcomings of asphalt, such as low softening point, high penetration and low temperature brittleness, the use range is limited when it is used as a waterproof material. After adding a high polymer modifier to the asphalt, the above-mentioned properties are greatly improved, and the weather resistance and temperature sensitivity are improved.

[0037] In the embodiment, the high-density polyethylene film has excellent resistance to most household and industrial chemicals, and some types of chemicals can cause chemical corrosion, such as corrosive oxidizing agents, aromatic hydrocarbons and halogenated hydrocarbons. The polymer is non-hygroscopic and has good water vapor resistance, good corrosion resistance, electrical properties, moisture resistance, impermeability and high tensile strength.

[0038] It should be noted that the waterproof layer 42 is arranged on the upper surface of the anti-permeation layer 43, and then the sound insulation layer 41 is arranged on the upper surface of the waterproof layer 42. After that, the reinforced concrete bottom plate layer 1 is poured, including the installation of the steel plate water stop plate 3. After reaching the specified age, the concrete is poured into the post-pouring belt pouring groove 2. The precast concrete slabs 44, the second gravel layer 48 and the first gravel layer 45 can improve the structural strength of the anti-seepage structure, and are not easy to deform and collapse, thereby improving the stability of the anti-seepage structure. The waterproof layer 42 and the anti-permeation layer 43 can be waterproofed.

[0039] The working principle of the above embodiment is as follows:

[0040] In the basement floor earthwork excavation, the post-cast strip position over-excavation needs the depth, then fills the second broken stone layer 48 into the pit, sets the precast concrete layer 46 on the upper surface of the second broken stone layer 48, sets the precast concrete slab 44 on the upper surface of the precast concrete layer 46, and then fills the first broken stone layer 45 on the upper surface of the precast concrete layer 46, and the number of the first broken stone layer 45 is not less than two, and the number of the first broken stone layer 45 is not less than two, and the number of the first broken stone layer 45 is not less than two, and the number of the first broken stone layer 45 is not less than two, and the number of the first broken stone layer 45 is not less than two, and the number of the first broken stone layer 45 is not less than two, and the number of the first broken stone layer 45 is not less than two, and the number of the first broken stone layer 45 is not less than two, and the number of the first broken stone layer 45 is not less than two, and the number of the first broken stone layer 45 is not less than two, and the number of the first broken stone layer 45 is not less than two, and the number of the first broken stone layer 45 is not less than two, and the number of the first broken stone layer 45 is not less than two, and the number of the first broken stone layer 45 is not less than two, and the number of the first broken stone layer 45 is not less than two, and the number of the first broken stone layer 45 is not less than two, and the number of the first broken stone layer 45 is not less than two, and the number of the first broken stone layer 45 is not less than two, and the number of the first broken stone layer 45 is not less than two, and the number of the first broken stone layer 45 is not less than two, and the number of the first broken stone layer 45 is not less than two, and the number of the first broken stone layer 45 is not less than two, and the number of the first broken stone layer 45 is not less than two, and the number of the first broken stone layer 45 is not less than two, and the number of the first broken stone layer 45 is not less than two, and the number of the first broken stone layer 45 is not less than two, and the number of the first broken stone layer 45 is not less than two, and the number of the first broken stone layer 45 is not less than two, and the number of the first broken stone layer 45 is not less than two, and the number of the first broken stone layer 45 is not less than two, and the number of the first broken stone layer 45 is not less than two, and the number of the first broken stone layer 45 is not less than two, and the number of the first broken stone layer 45 is not less than two, and the number of the first broken stone layer

Claims

1. A basement post-cast strip anti-seepage structure comprising a bottom plate layer (1), characterized in that: A casting groove (2) is provided in the middle of the upper surface of the bottom plate layer (1), a water-stop plate (3) is provided on the bottom wall of the inner cavity of the casting groove (2), and a connecting mechanism (4) is provided on the lower surface of the bottom plate layer (1). The connecting mechanism (4) includes a sound insulation layer (41), a waterproof layer (42), an anti-permeability layer (43), at least two precast concrete slabs (44), at least two first crushed stone layers (45), a precast concrete layer (46), at least two drainage holes (47), and a second crushed stone layer (48). The sound insulation layer (41) is disposed on the lower surface of the base plate layer (1), the waterproof layer (42) is disposed on the lower surface of the sound insulation layer (41), the anti-permeability layer (43) is disposed on the lower surface of the waterproof layer (42), at least two precast concrete slabs (44) are disposed on the upper surface of the precast concrete layer (46), at least two precast concrete slabs (44) are disposed on the lower surface of the anti-permeability layer (43), and at least two first crushed stone layers (45) are disposed on the upper surface of the precast concrete layer (46).

2. The basement post-cast strip anti-seepage structure according to claim 1, characterized in that: The number of at least two drainage holes (47) are all opened through the front of the precast concrete layer (46), and the second crushed stone layer (48) is provided on the lower surface of the precast concrete layer (46).

3. The basement post-cast strip anti-seepage structure according to claim 1, characterized in that: No fewer than two of the aforementioned drainage holes (47) are evenly distributed on the front side of the precast concrete layer (46).

4. The basement post-cast strip anti-seepage structure according to claim 1, characterized in that: The waterproof layer (42) is a polymer-modified bitumen waterproof membrane.

5. The basement post-cast strip anti-seepage structure according to claim 1, characterized in that: The impermeable layer (43) is a high-density polyethylene film.

6. The basement post-cast strip anti-seepage structure according to claim 1, characterized in that: The sound insulation layer (41) is a polyester fiber cotton layer.

7. The basement post-cast strip anti-seepage structure according to claim 1, characterized in that: No fewer than two of the precast concrete slabs (44) are evenly distributed on the upper surface of the precast concrete layer (46).

8. The basement post-cast strip anti-seepage structure according to claim 1, characterized in that: The bottom slab layer (1) is a reinforced concrete layer.

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