Sealing waterproof protective wall for engineering construction
By combining the tenon and mortise connection between the substrate and the elastic sealing layer with the longitudinal waterproof reinforcing ribs, a dual sealing system is constructed, which solves the problems of complex construction and unstable waterproof effect of traditional waterproof protective walls, achieves efficient sealing and intelligent monitoring, and significantly improves waterproof performance and structural stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUACHUAN CONSTR GRP CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-05-15
AI Technical Summary
Existing waterproof protective wall structures have long construction cycles, complex joint treatments, unstable waterproofing effects, and high costs, making it difficult to guarantee long-term stability.
It adopts a tenon-and-mortise connection structure between the substrate and the elastic sealing layer, combined with longitudinally penetrating waterproof reinforcing ribs to construct a double sealing system. It is equipped with water-swellable water-stop strips, leakage sensors and fiber optic sensors to form a three-dimensional protection system.
It significantly improves the sealing reliability and structural stability of the joints, reduces maintenance difficulty, improves waterproof performance by about 200%, extends service life by more than 30%, and realizes intelligent monitoring and preventive maintenance.
Smart Images

Figure CN224243944U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of engineering protective wall technology, and in particular discloses a sealed and waterproof protective wall for engineering construction. Background Technology
[0002] In the field of building engineering, waterproof protective walls are key structures in underground engineering, tunnels, pipe corridors and other projects, and their performance directly affects the safety and service life of the project.
[0003] With societal development, the requirements for engineering construction are becoming increasingly stringent, leading to higher demands on the quality of protective walls frequently used in construction. However, existing protective wall structures mostly employ the traditional method of cast-in-place concrete with external waterproof membrane, which suffers from problems such as long construction cycles, complex joint treatment, and unstable waterproofing effects. Furthermore, while some new waterproofing technologies, such as grouting and spraying, have improved waterproofing performance to some extent, they are often costly and lack the ability to guarantee long-term stability. Utility Model Content
[0004] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a high-efficiency protective wall for sealing and waterproofing projects that is simple in structure, convenient to construct, and has excellent waterproofing effect.
[0005] To achieve the above objectives, this utility model provides a sealed and waterproof protective wall for engineering construction, comprising a base plate, an elastic sealing layer, and waterproof reinforcing ribs. One end of the base plate has a groove for splicing, extending laterally along the base plate. The other end of the base plate connects to the elastic sealing layer. The end of the elastic sealing layer away from the base plate has a protrusion for inserting into the groove. Adjacent base plates are connected by a tenon-and-mortise joint through the groove and the protrusion of the elastic sealing layer. The waterproof reinforcing ribs penetrate longitudinally through the interior of the base plate and extend to the joint between adjacent base plates, forming a continuous waterproof barrier. The tenon-and-mortise joint formed by the groove at one end of the base plate and the protrusion at the end of the elastic sealing layer achieves mechanical interlocking of the structure. Combined with the internally penetrating waterproof reinforcing ribs, a dual sealing system of "structural connection + embedded protection" is constructed, improving waterproof performance by approximately 200% compared to traditional linear butt joint methods, significantly enhancing the sealing reliability and structural stability of the joints.
[0006] Furthermore, the depth of the groove is 1 / 3 to 1 / 2 of the substrate thickness, and the groove opening width is 20-30 mm. Finite element analysis verifies that this depth range balances structural strength and material utilization: too shallow (<1 / 3) results in a stress concentration factor >2.1, while too deep (>1 / 2) reduces bending stiffness by more than 18%. Setting the groove depth to 1 / 3 to 1 / 2 of the substrate thickness ensures sufficient fitting depth while maintaining structural splicing strength. The groove opening width is controlled at 20-30 mm to facilitate uniform filling of the sealant, reduce stress concentration effects, and effectively prevent joint cracking caused by thermal expansion and contraction or construction errors.
[0007] Furthermore, the elastic sealing layer has a Shore hardness of 50-70A and is embedded with a water-swellable sealing strip. The elastic sealing layer is made of a material with a Shore hardness of 50-70A, ensuring good sealing performance while possessing strong deformation adaptability; the embedded water-swellable sealing strip can automatically expand in humid environments, actively sealing cracks ≤3mm in width, possessing self-healing function, and enhancing the intelligent response capability of the waterproofing system.
[0008] Furthermore, the elastic sealing layer is detachably connected to the substrate via a connector. A spring-loaded spring is fixedly installed inside the connector, and a fixing plate is connected to the free end of the spring-loaded spring. The fixing plate extends out of the connector, and the spring-loaded spring and the fixing plate are connected by a spring. A rubber block is installed on the fixing plate, and the substrate has mounting holes for engaging with the rubber block. The elastic sealing layer and the substrate are detachably installed via the connector. The connector integrates a spring-loaded spring structure, which can continuously apply pre-pressure to the sealing layer, ensuring a long-term tight fit between the sealing layer and the substrate, reducing maintenance difficulty, and facilitating subsequent replacement and maintenance operations.
[0009] Furthermore, the waterproof reinforcing rib includes a skeleton and a polymer waterproof membrane covering the skeleton. The waterproof reinforcing rib adopts a combined structure of a steel skeleton and an outer polymer waterproof membrane. The steel skeleton provides high bending stiffness to prevent structural deformation, while the polymer membrane forms a continuous waterproof barrier, effectively solving the problems of easy rusting, corrosion and water seepage of traditional steel bars, and enhancing the overall durability of the protective wall.
[0010] Furthermore, the substrate is internally provided with drainage channels, and multiple sets of drainage channels are arranged at equal intervals along the length of the substrate. These multiple sets of drainage channels are connected via outlet channels. The multiple sets of drainage channels arranged at equal intervals along the length of the substrate, connected by outlet channels, form a capillary drainage network structure, which can effectively guide water accumulation inside the wall, reduce hydrostatic pressure, prevent wall bulging, and extend the service life by more than 30%. It is particularly suitable for underground engineering or rainy season construction environments.
[0011] Furthermore, a leakage sensor is installed at the joint between adjacent substrates to monitor the sealing status of the joint in real time. The sensor automatically triggers an alarm in case of any abnormality. Compared to traditional manual inspection, this system improves detection efficiency by approximately 90%, enabling preventative maintenance and rapid location of leaks, thus ensuring the long-term safe operation of the project.
[0012] Furthermore, an optical fiber sensor is embedded within the waterproof reinforcing rib to monitor its deformation in real time. The integrated optical fiber sensor within the waterproof reinforcing rib allows for real-time acquisition of structural deformation data. By analyzing its strain characteristics, the overall stress change trend can be determined, providing maintenance personnel with quantitative maintenance data and improving structural health management.
[0013] Furthermore, the substrate is provided with honeycomb-shaped heat dissipation holes, which are used to alleviate structural stress caused by temperature differences. The hexagonal honeycomb-shaped heat dissipation holes on the substrate enhance air convection to achieve heat dissipation and cooling, effectively mitigating the structural thermal expansion and contraction problems caused by diurnal temperature differences or exposure to sunlight, and reducing the risk of deformation and leakage caused by temperature stress.
[0014] Furthermore, the outer surface of the substrate is provided with a waterproof membrane and a waterproof coating layer. The outer surface of the substrate is covered with a waterproof membrane and a waterproof coating layer, forming a continuous chemical waterproof barrier. This barrier works in conjunction with the internal physical structure protection system to construct a three-dimensional protection system, significantly improving the overall waterproof capability and structural weather resistance.
[0015] The beneficial effects of this utility model are as follows: the groove at one end of the substrate and the protrusion at the end of the elastic sealing layer form a tenon-and-mortise connection, realizing the mechanical interlocking of the structure; combined with the internal longitudinally penetrating waterproof reinforcing ribs, a dual sealing system of "structural connection + embedded protection" is constructed, which improves the waterproof performance by about 200% compared with the traditional linear butt joint method, and significantly improves the sealing reliability and structural stability of the joint.
[0016] The groove depth is set to 1 / 3 to 1 / 2 of the substrate thickness to ensure structural splicing strength while providing sufficient fitting depth; the groove width is controlled at 20-30mm to facilitate uniform filling of sealant, reduce stress concentration effect, and effectively prevent joint cracking caused by thermal expansion and contraction or construction errors. Attached Figure Description
[0017] Figure 1 This is a structural schematic diagram of a sealing and waterproof protective wall for engineering construction according to the present invention;
[0018] Figure 2 for Figure 1 A partial schematic diagram of A in the middle;
[0019] Figure 3This is a schematic diagram of the connecting component of this utility model.
[0020] The reference numerals in the figures include:
[0021] 1. Substrate; 2. Elastic sealing layer; 3. Waterproof reinforcing rib; 4. Groove; 5. Protrusion; 6. Expansion waterstop strip; 7. Connector; 8. Rebound device; 9. Fixing plate; 10. Spring; 11. Drainage groove; 12. Water outlet groove; 13. Rubber block. Detailed Implementation
[0022] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.
[0023] Please see Figures 1 to 3 As shown, this utility model discloses a sealed and waterproof protective wall for engineering construction, comprising a base plate 1, an elastic sealing layer 2, and waterproof reinforcing ribs 3. One end of the base plate 1 has a groove 4 for splicing, extending laterally along the base plate 1. The other end of the base plate 1 is connected to the elastic sealing layer 2. The end of the elastic sealing layer 2 away from the base plate 1 has a protrusion 5 for inserting into the groove 4. Adjacent base plates 1 are connected by a tenon-and-mortise joint through the groove 4 and the protrusion 5 of the elastic sealing layer 2. The waterproof reinforcing ribs 3 penetrate longitudinally through the interior of the base plate 1 and extend to the joint of adjacent base plates 1, forming a continuous waterproof barrier. The tenon-and-mortise joint formed by the groove 4 at one end of the base plate 1 and the protrusion 5 at the end of the elastic sealing layer 2 achieves mechanical interlocking of the structure. Combined with the internally penetrating waterproof reinforcing ribs 3, a dual sealing system of "structural connection + embedded protection" is constructed, improving waterproof performance by approximately 200% compared to the traditional linear butt joint method, significantly enhancing the sealing reliability and structural stability of the joint.
[0024] Specifically, the substrate 1 is precast concrete. It is made of high-strength, impermeable concrete, and its size can be customized according to actual project requirements. The modules are seamlessly connected through a special sealing structure to ensure waterproof performance.
[0025] The depth of groove 4 is 1 / 3 to 1 / 2 of the thickness of substrate 1, and the width of groove 4 is 20-30mm. Finite element analysis has verified that this depth range can balance structural strength and material utilization: too shallow (<1 / 3) will result in a stress concentration factor >2.1, while too deep (>1 / 2) will reduce the bending stiffness by more than 18%. The depth of groove 4 is set to 1 / 3 to 1 / 2 of the thickness of substrate 1 to provide sufficient fitting depth while ensuring the structural splicing strength; the groove width is controlled at 20-30mm to facilitate uniform filling of sealant, reduce stress concentration effect, and effectively prevent joint cracking caused by thermal expansion and contraction or construction errors.
[0026] The elastic sealing layer 2 has a Shore hardness of 50-70A and is embedded with a water-swellable sealing strip 6. The elastic sealing layer 2 is made of a material with a Shore hardness of 50-70A, which ensures good sealing performance while having strong deformation adaptability; the water-swellable sealing strip 6 embedded in it can automatically expand in humid environments, actively sealing cracks with a width of ≤3mm, and has a self-healing function, improving the intelligent response capability of the waterproofing system.
[0027] Specifically, the elastic sealing layer 2 is a composite phase change material layer, which improves the deformation recovery capability in environments ranging from -30℃ to 60℃.
[0028] Specifically, the expansion sealing strip 6 is made of shape memory polymer, and the expansion rate can be adjusted to a range of 150-300%.
[0029] The elastic sealing layer 2 is detachably connected to the substrate 1 via a connector 7. A spring-loaded spring 8 is fixedly installed inside the connector 7. A fixing plate 9 is connected to the free end of the spring-loaded spring 8. The fixing plate 9 extends out of the connector 7. The spring-loaded spring 8 and the fixing plate 9 are connected by a spring 10. A rubber block 13 is installed on the fixing plate 9. The substrate 1 has mounting holes for engaging with the rubber block 13. The elastic sealing layer 2 and the substrate 1 are detachably installed via the connector 7. The connector 7 integrates a spring 10 and a spring-loaded spring 8 structure, which can continuously apply pre-pressure to the sealing layer to ensure a long-term tight fit between the sealing layer and the substrate 1, reducing maintenance difficulty and facilitating later replacement and maintenance operations.
[0030] The waterproof reinforcing rib 3 consists of a frame and a polymer waterproof membrane covering the frame. The waterproof reinforcing rib 3 adopts a combined structure of a steel frame and an outer polymer waterproof membrane. The steel frame provides high bending stiffness to prevent structural deformation, while the polymer membrane forms a continuous waterproof barrier, effectively solving problems such as easy corrosion and water seepage of traditional steel bars, and enhancing the overall durability of the protective wall.
[0031] The substrate 1 has multiple sets of drainage channels 11 arranged at equal intervals along its length. These drainage channels 11 are connected by outlet channels 12. The multiple sets of equally spaced drainage channels 11 along the length of the substrate 1, connected by outlet channels 12, form a capillary drainage network structure. This effectively guides water accumulation inside the wall, reduces hydrostatic pressure, prevents wall bulging, and extends service life by approximately 30% or more. It is particularly suitable for underground engineering or rainy season construction environments.
[0032] A leakage sensor is installed at the joint between adjacent substrates 1 to monitor the sealing status of the joint in real time. The sensor automatically triggers an alarm in case of any abnormality. Compared to traditional manual inspection, this system improves detection efficiency by approximately 90%, enabling preventative maintenance and rapid location of leaks, thus ensuring the long-term safe operation of the project.
[0033] An optical fiber sensor is embedded within the waterproof reinforcing rib 3 to monitor its deformation in real time. This integrated sensor allows for the real-time acquisition of structural deformation data, and analysis of strain characteristics reveals the overall stress variation trend, providing maintenance personnel with quantitative maintenance data and improving structural health management.
[0034] The substrate 1 has honeycomb-shaped heat dissipation holes, which are used to alleviate structural stress caused by temperature differences. The substrate 1 has hexagonal honeycomb-shaped heat dissipation holes, which enhance air convection to achieve heat dissipation and cooling, effectively mitigating the structural thermal expansion and contraction problems caused by diurnal temperature differences or exposure to sunlight, and reducing the risk of deformation and leakage caused by temperature stress.
[0035] The outer side of substrate 1 is provided with a waterproof membrane and a waterproof coating layer. The outer surface of substrate 1 is covered with a waterproof membrane and a waterproof coating layer, forming a continuous chemical waterproof barrier. It works in conjunction with the internal physical structure protection system to construct a three-dimensional protection system, which significantly improves the overall waterproof capability and structural weather resistance.
[0036] Specifically, the waterproof membrane is a graphene-modified TPU membrane. Its tensile strength is increased to 45 MPa. Graphene nanosheets are uniformly dispersed within the TPU matrix, significantly improving the membrane's waterproofness, tear resistance, and thermal stability through a nano-barrier mechanism. The addition of graphene effectively constructs a dense molecular barrier network, reducing water vapor permeability by more than 50%, extending membrane lifespan, and enhancing resistance to UV aging. This membrane retains the original flexibility of TPU, adapting to micro-deformations and exhibiting excellent workability and environmental adaptability.
[0037] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A sealed and waterproof protective wall for engineering construction, characterized in that: It includes a substrate (1), an elastic sealing layer (2), and a waterproof reinforcing rib (3); one end of the substrate (1) is provided with a groove (4) for splicing, the groove (4) extends laterally along the substrate (1), the other end of the substrate (1) is connected to the elastic sealing layer (2), the end of the elastic sealing layer (2) away from the substrate (1) is provided with a protrusion (5) for inserting into the groove (4), and two adjacent substrates (1) are connected by a tenon and mortise structure through the groove (4) and the protrusion (5) of the elastic sealing layer (2); the waterproof reinforcing rib (3) extends longitudinally through the interior of the substrate (1) and extends to the joint of the adjacent substrates (1) to form a continuous waterproof barrier.
2. The sealing and waterproof protective wall for engineering construction according to claim 1, characterized in that: The depth of the groove (4) is 1 / 3 to 1 / 2 of the thickness of the substrate (1), and the width of the groove (4) is 20-30 mm.
3. A sealed and waterproof protective wall for engineering construction according to claim 1, characterized in that: The elastic sealing layer (2) has a Shore hardness of 50-70A and is embedded with a water-swellable sealing strip (6).
4. A sealed and waterproof protective wall for engineering construction according to claim 1, characterized in that: The elastic sealing layer (2) is detachably connected to the substrate (1) via a connector (7). A spring rebounder (8) is fixedly installed inside the connector (7). A fixing plate (9) is connected to the free end of the spring rebounder (8). The fixing plate (9) extends out of the connector (7) through the connector (7). The spring rebounder (8) and the fixing plate (9) are connected via a spring (10). A rubber block (13) is installed on the fixing plate (9). The substrate (1) is provided with mounting holes for engaging with the rubber block (13).
5. A sealed and waterproof protective wall for engineering construction according to claim 1, characterized in that: The waterproof reinforcing rib (3) includes a skeleton and a polymer waterproof membrane covering the skeleton.
6. A sealed and waterproof protective wall for engineering construction according to claim 1, characterized in that: The substrate (1) is provided with drainage grooves (11) inside. Multiple sets of drainage grooves (11) are provided. The multiple sets of drainage grooves (11) are equally spaced along the length of the substrate (1). The multiple sets of drainage grooves (11) are connected through water outlet grooves (12).
7. A sealed and waterproof protective wall for engineering construction according to claim 1, characterized in that: A leakage sensor is provided at the joint of the adjacent substrates (1), and the leakage sensor is used to monitor the sealing status of the joint in real time.
8. A sealed and waterproof protective wall for engineering construction according to claim 1, characterized in that: An optical fiber sensor is embedded in the waterproof reinforcing rib (3), which is used to monitor the deformation of the waterproof reinforcing rib (3) in real time.
9. A sealed and waterproof protective wall for engineering construction according to claim 1, characterized in that: The substrate (1) is provided with honeycomb-shaped heat dissipation holes, which are used to alleviate structural stress caused by temperature difference.
10. A sealed and waterproof protective wall for engineering construction according to claim 1, characterized in that: The substrate (1) is provided with a waterproof membrane and a waterproof coating layer on its outer side.