Storage tank is used to store liquid or gas steel sealed container, storage tank engineering is petroleum, chemical, grain and oil, food, fire protection, transportation, metallurgy, national defense and other industries essential important infrastructure, its basic requirements are also quite strict. The foundation soil layer should meet the requirements of the design value of the bearing capacity, and it should be treated with seepage and moisture-proof, otherwise the leakage will cause serious pollution to the environment, and the underground water vapor will come up, and the steel tank will be corroded. Therefore, HDPE oil tank impervious geomembrane is the impervious and moisture-proof material in the basic design of storage tank.
Oil tank area laying impermeable geomembrane construction technology:
1. Before the oil tank impermeable geomembrane is laid, the corresponding acceptance certificate of the civil engineering shall be obtained.
2. Before cutting, the relevant dimensions should be accurately measured, HDPE geomembrane should be cut according to the actual cutting, generally not according to the size shown, should be numbered one by one, and recorded in detail on the special form.
3. Should strive to weld less, under the premise of ensuring quality, as far as possible to save raw materials. It is also easy to ensure quality.
4. The overlap width of the seam between the film and the film is generally not less than 10cm, usually so that the weld alignment is parallel to the slope, that is, along the slope.
5. Usually in corners and deformed sections, the seam length should be as short as possible. Except for special requirements, on slopes with slopes greater than 1:6, within 1.5 meters of the top slope or stress concentration area, try not to install welds.
6. In the laying of the oil tank impermeable film, artificial folds should be avoided. When the temperature is low, it should be tightened and paved as far as possible.
7. After the completion of impermeable geomembrane laying, walking on the surface of the membrane, moving tools, etc. should be minimized. Objects that can cause harm to the impermeable membrane should not be placed on the membrane or carried on the membrane to avoid accidental damage to the membrane.
Post time: Nov-12-2024