Novel anti-seepage structure of artificial lake bentonite
By using a combination of bentonite layers and geotextiles in artificial lakes, the problems of complex concrete foundation construction and ecological isolation are solved, achieving low-carbon and environmentally friendly construction and eco-friendly anti-seepage effect, which is suitable for the construction of various artificial lakes.
Patent Information
- Application Number
- CN202520197806.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-08
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-08
AI Technical Summary
Existing artificial lakes mostly use concrete slabs with impermeable structures, which leads to complex construction, long construction periods, high resource and energy consumption, high carbon emissions, and also blocks the exchange of materials and energy cycles between the lake and the surrounding ecosystem, affecting the integrity and sustainability of the ecosystem.
A novel anti-seepage structure combining bentonite layers and geotextiles is used. The bentonite expands when it comes into contact with water to form a dense anti-seepage layer, which, combined with the support of geotextiles, replaces the concrete base slab, achieving simple construction, low carbon emissions and environmental protection, while maintaining ecological continuity.
It has improved construction efficiency, reduced energy consumption and carbon emissions, maintained the integrity and stability of the ecosystem, and is suitable for the construction of artificial lakes of different sizes and geological conditions.
Smart Images

Figure CN223838003U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the fields of building construction and municipal construction, and more specifically to a novel bentonite anti-seepage structure for artificial lakes. Background Technology
[0002] Currently, most artificial lakes use concrete slabs with impermeable structures. Concrete production results in high carbon emissions, and construction is complex, time-consuming, and resource-intensive. Furthermore, the closed isolation layer it creates severs the ecological connection between the lake and the surrounding area, hindering material exchange and energy cycling, and affecting the integrity and sustainability of the ecosystem, such as limiting nutrient exchange between organisms and weakening the lake's ecological regulation function. Utility Model Content
[0003] To address the aforementioned problems, a novel bentonite-based anti-seepage structure has emerged. Bentonite expands upon contact with water to form a dense, impermeable layer. Construction is simple, time-consuming, energy-efficient, and low-carbon, meeting low-carbon and environmental protection requirements. Furthermore, this structure does not completely block the interaction between the lake and its surrounding ecosystem, maintaining a certain ecological connection and making the artificial lake ecosystem more vibrant and stable, thus possessing significant application potential in artificial lake construction. Therefore, this utility model provides a novel bentonite-based anti-seepage structure for artificial lakes.
[0004] The technical solution of this utility model is as follows:
[0005] A novel bentonite impermeable structure for artificial lakes includes a bentonite layer, a bottom geotextile, and an upper geotextile. The bentonite layer is laid on the bottom geotextile, and the upper geotextile is laid on the bentonite layer. The bottom geotextile is laid on a plain soil layer, and planting soil is laid on the upper geotextile.
[0006] The specifications of the bottom geotextile and the top geotextile are: 3mm thick and 250g / ㎡.
[0007] The bentonite layer has a thickness of 300mm and a density of 5kg / m².
[0008] The technical effects and advantages of this utility model are as follows:
[0009] 1. This utility model replaces the concrete base plate with bentonite, which makes construction convenient, the process simple, saves time and labor, and improves construction efficiency;
[0010] 2. Environmentally friendly and low-carbon, with low energy consumption and carbon emissions, meeting environmental protection requirements;
[0011] 3. Eco-friendly, maintaining ecological connections between the lake and its surroundings, and preserving the integrity and stability of the ecosystem;
[0012] 4. It has wide adaptability and is applicable to artificial lakes of different sizes, shapes and geological conditions, providing a universal and reliable anti-seepage solution for their construction. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model. Detailed Implementation
[0014] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0015] Example 1
[0016] A novel bentonite impermeable structure for artificial lakes includes a bentonite layer, a bottom geotextile, and an upper geotextile. The bentonite layer is laid on the bottom geotextile, and the upper geotextile is laid on the bentonite layer. The bottom geotextile is laid on a plain soil layer, and planting soil is laid on the upper geotextile.
[0017] The specifications of the bottom geotextile and the top geotextile are: 3mm thick and 250g / ㎡.
[0018] The bentonite layer has a thickness of 300mm and a density of 5kg / m².
[0019] Example 2
[0020] The construction steps for implementing the new bentonite structure are as follows: compaction of the subgrade soil → laying of geotextile → laying of 300mm thick bentonite → laying of geotextile → laying of planting soil. This utility model utilizes the water-swelling characteristic of bentonite, supplemented by geotextile to restrain the bentonite, and then utilizes the pressure of the upper water layer to achieve a seepage-resistant effect that replaces the concrete base slab.
[0021] The specific steps are as follows:
[0022] S1. The original ground surface was compacted using plain soil;
[0023] S2. After compaction, lay the first layer of geotextile.
[0024] S3. Lay 300mm of bentonite on the bottom geotextile;
[0025] S4. Lay the upper layer of geotextile on the bentonite;
[0026] S5. Planting soil is laid on the upper layer of geotextile.
[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A novel bentonite-based impermeable structure for artificial lakes, characterized in that: It includes a bentonite layer, a bottom geotextile, and an upper geotextile. The bentonite layer is laid on the bottom geotextile, and the upper geotextile is laid on the bentonite layer. The bottom geotextile is laid on a plain soil layer, and the upper geotextile is laid with planting soil.
2. The novel bentonite anti-seepage structure for artificial lakes according to claim 1, characterized in that: The specifications of the bottom geotextile and the top geotextile are: 3mm thick and 250g / ㎡.
3. The novel bentonite anti-seepage structure for artificial lakes according to claim 1, characterized in that: The bentonite layer has a thickness of 300mm and a density of 5kg / m².