Waterproof structure of novel water stop material for underground building space

By designing a multi-layered waterproof structure and protective components, the problem of unsatisfactory waterproofing effect and insufficient protection in underground building spaces has been solved, achieving more efficient waterproofing performance and a longer service life.

CN224002133UActive Publication Date: 2026-03-17FUJIAN XINGYAN CONSTR GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-19
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

Existing waterproofing structures using new water-stopping materials in underground building spaces have unsatisfactory waterproofing effects and lack protective functions, resulting in leakage and short service life.

Method used

It adopts a multi-layer waterproof structure consisting of steel-edged rubber waterstop, expansion waterstop strip, waterproof membrane layer, waterproof membrane reinforcement layer, sealant sealing and protective cover, fastening screws, sponge pad, protective layer and adhesive layer. The waterproof effect is improved through the cooperation of multiple waterproof structures, and protection is provided by protective components.

Benefits of technology

It significantly improves the waterproofing effect of the waterproof structure, prevents water leakage, extends service life, and meets usage requirements.

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Abstract

The utility model belongs to the technical field of underground building space, and particularly relates to a waterproof structure of a novel water stop material for underground building space, which comprises a concrete structure, a deformation joint is arranged on the concrete structure, a filling layer is arranged at the bottom end in the deformation joint, a plastic plate is arranged at the top of the filling layer, and a steel edge rubber water stop belt is arranged at the top of the plastic plate. An expansion water stop strip is arranged on the top of the steel edge rubber water stop belt. According to the waterproof structure, the steel edge rubber waterstop, the expansion waterstop strip, the coiled material waterproof layer, the waterproof coiled material reinforcing layer and the sealant plug are matched with one another, so that the waterproof effect of the waterproof structure is improved, the problem that when the waterproof structure is used, a small part of water still seeps downwards through a gap between the waterproof structure and the deformation joint is solved, and the service life of the waterproof structure is prolonged. And through mutual cooperation of the protective cover, the fastening screw, the sponge pad, the protective layer and the adhesion layer, the problem that the waterproof structure is damaged or damaged in the long-term use process is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of underground building space technology, specifically to a waterproof structure of a novel water-stopping material for underground building spaces. Background Technology

[0002] Urban underground space plays an irreplaceable role in resolving land resource conflicts, alleviating traffic problems, and expanding urban space in my country. However, in actual construction, the problem of water leakage in underground building spaces is often encountered. Underground building spaces include top slabs, side walls, and bottom slabs. During construction, in order to reduce the risk of building cracks, expansion joints are usually provided on the top slabs, side walls, and bottom slabs. However, research has found that leakage in underground building spaces is mostly concentrated at the expansion joints. Therefore, the waterproof structure of the expansion joints is particularly important.

[0003] Existing patent CN202689054U discloses a waterproof structure for basement expansion joints, characterized by comprising asphalt-impregnated wood fiberboard, a metal waterstop strip, hemp fibers, kraft paper, and asphalt sealant. The basement expansion joint is 20-30mm wide. Asphalt-impregnated wood fiberboard is placed at the bottom, a metal waterstop strip is placed on top of the asphalt-impregnated wood fiberboard, hemp fibers are placed on top of the metal waterstop strip, kraft paper is placed on top of the hemp fibers, and asphalt sealant is embedded in the kraft paper for sealing. This utility model is simple and practical.

[0004] The existing technology has the following problems:

[0005] 1. The waterproofing effect of existing underground building spaces using new water-stopping materials is generally not ideal. This means that when the waterproofing structure is in use, a small amount of water can still seep through the gap between the waterproofing structure and the expansion joint, reducing the practicality of the waterproofing structure and making it difficult to promote.

[0006] 2. The existing waterproof structures using new water-stopping materials in underground building spaces mostly have their surfaces exposed to the air and lack protective functions. This makes the waterproof structures prone to damage or breakage during long-term use, reducing their service life and failing to meet usage requirements. Utility Model Content

[0007] To address the shortcomings of existing technologies, this utility model provides a new type of waterproof structure for waterproofing materials used in underground building spaces. This solves the problem that the waterproofing effect of current technologies is generally not ideal, which means that some water can still seep through the gap between the waterproof structure and the expansion joint during use. Furthermore, the lack of protective function makes the waterproof structure prone to damage or breakage during long-term use.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a waterproof structure for a novel water-stopping material used in underground building spaces, comprising a concrete structure, an expansion joint on the concrete structure, a filling layer at the bottom of the expansion joint, a plastic board on top of the filling layer, a steel-edged rubber waterstop on top of the plastic board, an expansion waterstop strip on top of the steel-edged rubber waterstop, a rolled waterproof layer on top of the expansion waterstop strip, a waterproof membrane reinforcement layer on top of the rolled waterproof layer, a sealant on top of the waterproof membrane reinforcement layer, and a protective component above the expansion joint on the concrete structure.

[0009] As a preferred embodiment of this utility model, both ends of the steel-edged rubber waterstop extend into the concrete structure, and the size of the steel-edged rubber waterstop is adapted to the size of the plastic plate.

[0010] As a preferred technical solution of this utility model, the expansion waterstop strip is fixedly installed on the steel-edged rubber waterstop strip, and the size of the expansion waterstop strip is adapted to the size of the expansion joint.

[0011] As a preferred technical solution of this utility model, the sealant is specifically made of polyurethane sealant, and the top of the sealant is set at the same horizontal plane as the top of the concrete structure.

[0012] As a preferred embodiment of the present invention, the protective component includes a protective cover, a fastening screw on one side of the top of the protective cover, a sponge pad at the top inside the protective cover, a protective layer at the bottom of the sponge pad, and an adhesive layer at the bottom of the protective layer.

[0013] As a preferred technical solution of this utility model, the protective cover is provided with mounting holes that are adapted to the size of the fastening screws, and the number of fastening screws is several groups, and the fastening screws are arranged in a rectangular array.

[0014] As a preferred embodiment of this utility model, the protective layer is bonded and installed on the concrete structure through an adhesive layer. The protective layer is specifically made of extruded polystyrene foam, and the size of the protective layer is adapted to the size of the expansion joint.

[0015] Compared with the prior art, this utility model provides a waterproof structure for a novel water-stopping material used in underground building spaces, which has the following beneficial effects:

[0016] 1. This novel waterproofing material for underground building spaces utilizes a structure consisting of a steel-edged rubber waterstop, an expansion waterstop strip, a rolled waterproofing layer, a reinforced waterproofing membrane layer, and sealant. During use, the steel-edged rubber waterstop provides the first layer of waterproofing. When groundwater breaches the waterstop and enters the expansion joint, the expansion waterstop strip expands upon contact with water, sealing the area below the expansion joint and providing the second layer of waterproofing. The combined effect of the rolled waterproofing layer and the reinforced waterproofing membrane layer provides the third layer of waterproofing. Finally, the sealant provides a fourth layer of waterproofing, effectively filling and sealing various gaps and joints within the expansion joint. This design, through the coordinated use of multiple waterproofing structures, enhances the waterproofing effect and prevents water seepage through the gaps between the waterproofing structure and the expansion joint, improving the practicality of the waterproofing structure and facilitating its widespread adoption.

[0017] 2. This novel waterproofing material for underground building spaces comprises a protective cover, fastening screws, a sponge pad, a protective layer, and an adhesive layer. After installation, the protective cover is first installed above the expansion joint using the fastening screws to protect the expansion joint and its internal materials. The sponge pad acts as a buffer and further absorbs moisture. Finally, the adhesive layer ensures a tight fit between the protective layer and the expansion joint. The protective layer is made of extruded polystyrene foam, which possesses excellent compressive strength, waterproofness, and stability, further enhancing the protective performance of the waterproofing structure. This design provides the waterproofing structure with protective functionality, preventing damage or breakage during long-term use, extending its service life, and meeting usage requirements. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a cross-sectional structural diagram of the protective cover of this utility model;

[0020] Figure 3 This is a front view of the present invention.

[0021] In the diagram: 1. Concrete structure; 2. Expansion joint; 3. Filling layer; 4. Plastic board; 5. Steel-edged rubber waterstop; 6. Expansion waterstop strip; 7. Waterproof membrane layer; 8. Waterproof membrane reinforcement layer; 9. Sealant sealing; 10. Protective components; 101. Protective cover; 102. Fastening screw; 103. Sponge pad; 104. Protective layer; 105. Adhesive layer. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Reference Figure 1 , Figure 2 and Figure 3 This utility model provides an embodiment of a waterproof structure for a novel water-stopping material used in underground building spaces, comprising a concrete structure 1, an expansion joint 2 on the concrete structure 1, a filling layer 3 at the bottom of the expansion joint 2, a plastic board 4 on top of the filling layer 3, a steel-edged rubber waterstop 5 on top of the plastic board 4, an expansion waterstop strip 6 on top of the steel-edged rubber waterstop 5, a rolled waterproof layer 7 on top of the expansion waterstop strip 6, a waterproof rolled reinforcing layer 8 on top of the rolled waterproof layer 7, and a sealant 9 on top of the waterproof rolled reinforcing layer 8. A protective component 10 is provided above the expansion joint 2 on the concrete structure 1. Both ends of the steel-edged rubber waterstop 5 extend into the concrete structure 1, and the size of the steel-edged rubber waterstop 5 is adapted to the size of the plastic board 4.

[0024] Specifically: When in use, the steel-edged rubber waterstop 5 serves as the first layer of waterproofing, while the plastic plate 4 provides protection for the steel-edged rubber waterstop 5, thus extending its service life.

[0025] Reference Figure 1 , Figure 2 and Figure 3 The expansion waterstop 6 is fixedly connected to the steel-edged rubber waterstop 5, and the size of the expansion waterstop 6 is adapted to the size of the expansion joint 2.

[0026] Specifically: When groundwater breaks through the steel-edged rubber waterstop 5 and enters the expansion joint 2, the expansion waterstop 6 expands upon contact with water and seals the bottom of the expansion joint 2, thus providing a second layer of waterproofing.

[0027] Reference Figure 1 , Figure 2 and Figure 3 The sealant plug 9 is made of polyurethane sealant material, and the top of the sealant plug 9 is set at the same level as the top of the concrete structure 1.

[0028] Specifically: It is easy to apply polyurethane sealant, has good waterproof performance, and can effectively fill and seal various gaps and joints within the expansion joint 2, thus playing a fourth layer of waterproofing role.

[0029] Reference Figure 1 , Figure 2 and Figure 3 The protective component 10 includes a protective cover 101, a fastening screw 102 is provided on one side of the top of the protective cover 101, a sponge pad 103 is provided at the top inside the protective cover 101, a protective layer 104 is provided at the bottom of the sponge pad 103, and an adhesive layer 105 is provided at the bottom of the protective layer 104; the protective cover 101 has mounting holes that are adapted to the size of the fastening screw 102, and there are several sets of fastening screws 102 arranged in a rectangular array;

[0030] Specifically, the protective cover 101 can be installed above the expansion joint 2 by means of the fastening screws 102, so as to protect the expansion joint 2 and the materials inside it.

[0031] Reference Figure 1 , Figure 2 and Figure 3 The protective layer 104 is bonded and installed on the concrete structure 1 through the adhesive layer 105. The protective layer 104 is specifically made of extruded polystyrene foam, and the size of the protective layer 104 is adapted to the size of the expansion joint 2.

[0032] Specifically, the adhesive layer 105 allows the protective layer 104 to fit tightly against the expansion joint 2. The protective layer 104 is made of extruded polystyrene foam, which has good compressive strength, water resistance, and stability, further improving the protective performance of the waterproof structure.

[0033] The working principle and usage process of this utility model are as follows: After installation, the protective cover 101 is first installed above the expansion joint 2 by the fastening screws 102 provided in the protective component 10, so as to protect the expansion joint 2 and the materials inside it. Then, the sponge pad 103 can play a buffering role and further absorb moisture. Finally, the adhesive layer 105 can make the protective layer 104 fit tightly against the expansion joint 2. At the same time, the material of the protective layer 104 is extruded polystyrene foam, which has good compressive strength, waterproofness and stability, which can further improve the protective performance of the waterproof structure.

[0034] In use, the steel-edged rubber waterstop 5 installed on the plastic plate 4 first acts as the first layer of waterproofing. When groundwater breaks through the steel-edged rubber waterstop 5 and enters the expansion joint 2, the expansion waterstop 6 expands upon contact with water and seals the bottom of the expansion joint 2, thus acting as the second layer of waterproofing. Then, the waterproof membrane layer 7 and the waterproof membrane reinforcement layer 8 work together to achieve the third layer of waterproofing. Finally, the sealant 9 is installed to seal the joint, which has good waterproofing performance and can effectively fill and seal various gaps and joints in the expansion joint 2, thus acting as the fourth layer of waterproofing.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A waterproof structure of a new waterstop material for an underground building space, comprising a concrete structure (1), characterized by: The concrete structure (1) is provided with a deformation joint (2), the bottom of the deformation joint (2) is provided with a filling layer (3), the top of the filling layer (3) is provided with a plastic plate (4), the top of the plastic plate (4) is provided with a steel edge rubber waterstop (5), the top of the steel edge rubber waterstop (5) is provided with an expansion waterstop (6), the top of the expansion waterstop (6) is provided with a coiled waterproof layer (7), the top of the coiled waterproof layer (7) is provided with a waterproof coiled reinforcing layer (8), the top of the waterproof coiled reinforcing layer (8) is provided with a sealant block (9), and the concrete structure (1) is provided with a protection assembly (10) above the deformation joint (2).

2. A waterproof construction of a new waterstop material for an underground architectural space according to claim 1, characterized in that: The two ends of the steel edge rubber waterstop (5) extend into the concrete structure (1), and the size of the steel edge rubber waterstop (5) is matched with the size of the plastic plate (4).

3. A waterproof construction of a new waterstop material for an underground architectural space according to claim 1, characterized in that: The expansion waterstop (6) is installed on the steel edge rubber waterstop (5) through fixed connection, and the size of the expansion waterstop (6) is matched with the size of the deformation joint (2).

4. A waterproof construction of a novel waterstop material for an underground architectural space according to claim 1, characterized in that: The sealant block (9) is made of polyurethane sealant material, and the top of the sealant block (9) is arranged on the same horizontal plane as the top of the concrete structure (1).

5. A waterproof construction of a new waterstop material for an underground architectural space according to claim 1, characterized in that: The protection assembly (10) comprises a protection cover (101), one side of the top of the protection cover (101) is provided with a fastening screw (102), the top of the inside of the protection cover (101) is provided with a sponge pad (103), the bottom of the sponge pad (103) is provided with a protection layer (104), and the bottom of the protection layer (104) is provided with a sticking layer (105).

6. A waterproof construction of a novel waterstop material for an underground architectural space according to claim 5, characterized in that: The protection cover (101) is provided with a mounting hole matched with the size of the fastening screw (102), and the number of the fastening screws (102) is several groups.

7. A waterproof construction of a novel waterstop material for an underground architectural space according to claim 5, characterized in that: The protection layer (104) is installed on the concrete structure (1) through the sticking layer (105), and is made of extruded polystyrene foam plastic material, and the size of the protection layer (104) is matched with the size of the deformation joint (2).

Citation Information

Patent Citations

  • Water proof structure of basement deformation joint

    CN202689054U