Anti-seepage canal
By using a combination of water-swellable sealing adhesive layer, cement-based penetrating crystalline mortar waterproof layer, and waterproof coating at the connection of water conservancy channels, the leakage problem at the connection of water conservancy channels was solved, and the waterproof effect was improved and the channels were protected.
Patent Information
- Application Number
- CN202423240971.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Traditional irrigation canals are prone to leakage at the joints, leading to water waste and erosion of the canal base, which affects their service life and performance.
A combination structure consisting of a water-swellable waterproof sealant layer, a cement-based penetrating crystalline mortar waterproof layer, a waterproof coating, and a sealing layer is used to fill the gaps in the trapezoidal slabs. An impermeable layer is laid between the base soil layer and the trapezoidal slabs to enhance the waterproofing effect.
It effectively prevents water leakage, protects the channel base, reduces water loss, extends the service life of the channel, and improves overall performance.
Smart Images

Figure CN223593308U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water conservancy channel technology, and in particular to a seepage-proof water channel. Background Technology
[0002] Water conservancy projects, grand engineering projects aimed at regulating surface water and groundwater, also known as water engineering, cleverly balance the water needs of nature and human society in a unique way, achieving the goal of eliminating harm and promoting benefits. Among them, irrigation canals, as an important component of the water conveyance system, play a crucial role in extracting and transporting water from water sources to irrigation areas or water supply and distribution points. In my country's vast agricultural and water conservancy sectors, the importance of irrigation canals is self-evident. They are not only the main lifeline for farmland irrigation, providing indispensable water nourishment for the vigorous growth of crops and ensuring a bumper and stable agricultural harvest; at the same time, they are also an important source of water for urban and rural residents and enterprises, meeting the diversified needs of socio-economic development. During the rainy season or peak irrigation periods, irrigation canals play a vital role in drainage and flood control, effectively preventing waterlogging damage to farmland and ensuring the continuity and stability of agricultural production.
[0003] However, in practical applications, irrigation canals also face numerous challenges. Especially at the joints, gaps often appear due to various factors during the laying process, leading to water leakage during transport. This leakage not only wastes a significant amount of water resources but also poses a potential threat to the canal's foundation. Long-term water infiltration accelerates the erosion, deformation, and even damage of the canal's foundation, severely impacting its service life and overall performance. Utility Model Content
[0004] This utility model discloses a seepage-proof water channel, which solves the problem that traditional water conservancy channels are prone to leakage at the joints in practical applications, which not only wastes water resources, but also accelerates the erosion of the channel base, affecting service life and overall performance.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0006] A seepage-proof channel includes a base soil layer, a plurality of trapezoidal slabs laid on top of the base soil layer, and a plurality of seepage-proof layers laid between the base soil layer and the trapezoidal slabs; each trapezoidal slab has a water-swellable waterproofing adhesive layer on its side closest to other trapezoidal slabs, and a cement-based penetrating crystalline mortar waterproofing layer is filled in the gap between each pair of adjacent trapezoidal slabs, with the water-swellable waterproofing adhesive layer embedded in the corresponding cement-based penetrating crystalline mortar waterproofing layer; a first waterproof coating is laid on the surface of the cement-based penetrating crystalline mortar waterproofing layer, and a sealing layer is laid on the surface of the first waterproof coating.
[0007] Furthermore, the impermeable layers include a leak-proof layer, a cement-based composite material layer, and a second waterproof coating. The leak-proof layer is laid on the surface of the base soil layer, the cement-based composite material layer is laid on the surface of the leak-proof layer, the second waterproof coating is laid on the surface of the cement-based composite material layer, and several trapezoidal plates are laid sequentially on the surface of the second waterproof coating.
[0008] Preferably, the first waterproof coating is a polyurethane waterproof coating.
[0009] Preferably, the sealing layer is a sealant.
[0010] Preferably, the leak-proof layer is a high-density polyethylene geomembrane.
[0011] Preferably, the second waterproof coating is a polymer cement waterproof coating, a polyurethane waterproof coating, or a polymer-modified bitumen waterproof coating.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] This invention utilizes a water-swellable waterproof sealant layer and a cement-based penetrating crystalline mortar waterproof layer to fill the gap between two adjacent trapezoidal slabs. Because the cement-based penetrating crystalline mortar waterproof layer itself has a certain waterproofing effect and a self-healing function for minor cracks, it effectively ensures that water will not seep into the channel base layer from the gap between the two trapezoidal slabs. Simultaneously, a first waterproof coating and a sealing layer are also provided to seal the surface of the cement-based penetrating crystalline mortar waterproof layer, further enhancing the waterproofing effect at the channel joints. Furthermore, several anti-seepage layers are laid between the base soil layer and several trapezoidal slabs, effectively preventing water from seeping into the base soil layer and causing channel damage and water loss. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;
[0016] Figure 3 This utility model Figure 1 Enlarged view of point B in the middle;
[0017] In the diagram: 1. Subgrade layer; 2. Trapezoidal plate; 3. Leak-proof layer; 4. Cement-based composite material layer; 5. Second waterproof coating; 6. Water-swellable sealing adhesive layer; 7. Cement-based penetrating crystalline mortar waterproof layer; 8. First waterproof coating; 9. Sealing layer. Detailed Implementation
[0018] The specific content of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.
[0019] like Figure 1 , Figure 2 and Figure 3 As shown, this utility model provides a seepage-proof channel, including a base soil layer 1, a plurality of trapezoidal slabs 2 laid on top of the base soil layer 1, and a plurality of seepage-proof layers laid between the base soil layer 1 and the trapezoidal slabs 2; each trapezoidal slab 2 has a water-swellable waterproofing layer 6 on its side near other trapezoidal slabs 2, and a cement-based penetrating crystalline mortar waterproofing layer 7 is filled in the gap between each pair of adjacent trapezoidal slabs 2, with the water-swellable waterproofing layer 6 embedded in the corresponding cement-based penetrating crystalline mortar waterproofing layer 7, a first waterproof coating 8 laid on the surface of the cement-based penetrating crystalline mortar waterproofing layer 7, and a sealing layer 9 laid on the surface of the first waterproof coating 8.
[0020] Furthermore, the cement-based penetrating crystalline mortar waterproof layer 7 is formed by pouring expansive cement-based penetrating crystalline waterproof mortar, the first waterproof coating 8 is a polyurethane waterproof coating, and the sealing layer 9 is a sealant. By using the water-swellable sealing adhesive layer 6 and the cement-based penetrating crystalline mortar waterproof layer 7 to fill the gap between two adjacent trapezoidal plates 2, the cement-based penetrating crystalline mortar waterproof layer 7 has a certain waterproof effect and a self-repairing function for minor cracks, thus effectively ensuring that water will not seep into the channel base layer from the gap between the two trapezoidal plates 2. At the same time, the first waterproof coating layer 8 and the sealing layer 9 are also provided to seal and waterproof the surface of the cement-based penetrating crystalline mortar waterproof layer 7, further enhancing the waterproof effect at the connection of the channel. Furthermore, the thickness of each trapezoidal plate 2 is preferably set to 5-12cm, making it easier for workers to fill the gap between the two adjacent trapezoidal plates 2 with the water-swellable sealing adhesive layer 6, the cement-based penetrating crystalline mortar waterproof layer 7, the first waterproof coating layer 8, and the sealing layer 9.
[0021] like Figure 1 and Figure 2 As shown, the impermeable layers include a leak-proof layer 3, a cement-based composite material layer 4, and a second waterproof coating 5. The leak-proof layer 3 is laid on the surface of the base soil layer 1, the cement-based composite material layer 4 is laid on the surface of the leak-proof layer 3, and the second waterproof coating 5 is laid on the surface of the cement-based composite material layer 4. Several trapezoidal plates 2 are sequentially laid on the surface of the second waterproof coating 5. Further, the leak-proof layer 3 is a high-density polyethylene geomembrane; the second waterproof coating 5 is a polymer cement waterproof coating, a polyurethane waterproof coating, or a polymer-modified bitumen waterproof coating. Preferably, the leak-proof layer 3 and the cement-based composite material layer 4 can be laid alternately in two layers, thereby giving the entire channel excellent impermeability, so as to better prevent water from seeping into the base soil layer and causing channel damage and water loss.
[0022] Furthermore, the thickness of the leak-proof layer 3, the second waterproof coating 5, the first waterproof coating 8, and the sealing layer 9 is not less than 5mm, in order to meet the requirement that the entire water conservancy channel has good anti-seepage performance.
[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A seepage-proof irrigation canal, comprising a foundation soil layer (1), characterized in that: Several trapezoidal slabs (2) are laid on top of the foundation soil layer (1), and several anti-seepage layers are laid between the foundation soil layer (1) and the trapezoidal slabs (2); each trapezoidal slab (2) is provided with a water-swellable waterproofing adhesive layer (6) on the side closest to other trapezoidal slabs (2), and a cement-based penetrating crystalline mortar waterproofing layer (7) is filled in the gap between each two adjacent trapezoidal slabs (2). The water-swellable waterproofing adhesive layer (6) is embedded in the corresponding cement-based penetrating crystalline mortar waterproofing layer (7). A first waterproof coating layer (8) is laid on the surface of the cement-based penetrating crystalline mortar waterproofing layer (7), and a sealing layer (9) is laid on the surface of the first waterproof coating layer (8).
2. The seepage-proof irrigation canal according to claim 1, characterized in that: The impermeable layers include a leak-proof layer (3), a cement-based composite material layer (4), and a second waterproof coating (5). The leak-proof layer (3) is laid on the surface of the base soil layer (1), the cement-based composite material layer (4) is laid on the surface of the leak-proof layer (3), the second waterproof coating (5) is laid on the surface of the cement-based composite material layer (4), and a number of trapezoidal plates (2) are laid sequentially on the surface of the second waterproof coating (5).
3. The seepage-proof irrigation canal according to claim 1, characterized in that: The first waterproof coating (8) is a polyurethane waterproof coating.
4. The seepage-proof irrigation canal according to claim 1, characterized in that: The sealing layer (9) is a sealant.
5. The seepage-proof irrigation canal according to claim 2, characterized in that: The leak-proof layer (3) is a high-density polyethylene geomembrane.
6. The seepage-proof irrigation canal according to claim 2, characterized in that: The second waterproof coating (5) is a polymer cement waterproof coating, a polyurethane waterproof coating, or a polymer-modified bitumen waterproof coating.