What are the characteristics of dam lining

Release time:

2024-09-23

Dam lining as a seepage control technology is used for large-scale seepage caused by problems with the seepage control performance and construction quality of dam projects, especially for seepage control and reinforcement of reservoirs where transportation is inconvenient and materials are lacking. For the seepage control and reinforcement of slopes, this seepage control technology is less costly and more reasonable. For seepage at the base of the dam, vertical paving seepage control technology can be used. It is worth noting that the local leakage of the dam should not use geomembrane seepage control technology, but should consider the seepage control. The selection of seepage control membrane materials in reservoir seepage control and reinforcement project is related to the project cost and safety of the reservoir seepage control system, the selection of the dam lining should consider the performance, price, quality, service life of various membrane materials, etc., and select the more cost-effective dam lining, compared with the plastic geomembrane, the service life of the dam lining is longer, the price is higher, and the dam lining has a greater coefficient of friction, better mechanical properties, a longer service life, and a better resistance to fracture performance. Compared with other dam lining materials, the dam liner does not require high matching of the bedding layer, which can disperse the deformation of the dam liner, and the stress caused by the uneven bedding layer disperses the buoyancy and pore pressure of the water contact surface.

Dam Liner plays a very important role in protecting the soil between the waste and the ground, as well as preventing bacterial contamination of water from waste and sewage, and is used in various industries for impermeability. Dam Liner's powerful impermeability makes it the most commonly used impermeable material among geosynthetics, which also have this irreplaceable impermeable effect.

Dam Liner Features:

1, high impermeability coefficient - impermeable membrane with ordinary waterproof materials can not be compared with the impermeability effect, can overcome the uneven settlement of the substrate, high water vapor permeability coefficient

2, chemical stability - impermeable membrane has excellent chemical stability, used in sewage treatment, chemical reaction pools, landfills and so on. Resistant to high and low temperatures, asphalt, oil and tar, acid, alkali, salt and other 80 kinds of strong acid and alkali chemical media corrosion

3. anti-aging properties - seepage control geomembrane has excellent anti-aging, anti-ultraviolet, anti-decomposition ability, can be used with bare hands, the service life of the material is 50-70 years, for environmental seepage control provides a good material guarantee.

4. Resistant to plant roots - HDPE impermeable membrane has excellent resistance to puncture, can resist most of the plant root system

5, high mechanical strength - seepage control membrane has good mechanical strength, tensile strength at break 28MPa, elongation at break 700

6, low cost, high efficiency - HDPE impermeable membrane using new technology to improve the impermeable effect, but the production process is more scientific, fast, so the cost of products than traditional waterproofing materials to be lower, saving costs about 50%!

7, fast construction - anti-seepage membrane flexibility, there are a variety of specifications, laying form, can meet the seepage control requirements of different projects, the use of hot melt welding, weld strength, construction is convenient, fast, hygienic.

8, environmental protection and non-toxic - anti-seepage membrane materials used are non-toxic environmentally friendly materials, seepage control principle for the ordinary physical changes, does not produce any harmful substances, is the best choice for environmental protection, aquaculture, drinking water pool.

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