The selection of thickness for composite geomembranes. Composite geomembrane is an anti leakage material used in fields such as highways, railways, water conservancy, and environmental engineering.
1. Basic concepts
Composite geomembrane is a material composed of polyethylene film and non-woven materials, used to isolate the contact between soil and water, play a role in preventing infiltration, leakage, and enhancing soil bearing capacity. Common composite geomembrane thicknesses include 0.3mm, 0.4mm, 0.5mm, 0.8mm, 1.0mm, etc.
2. Environmental considerations for use
Choosing the appropriate thickness of composite geomembrane should consider the requirements of the usage environment. Generally speaking, a thickness of 0.3mm is suitable for soil conditions with good foundations and low groundwater levels; 0.4mm thickness is suitable for general soil conditions and has a certain degree of leak prevention ability; 0.5mm thickness is suitable for situations with poor soil environment and high groundwater level; 0.8mm thickness is suitable for projects with high soil environmental requirements.
3. Consideration of engineering characteristics
Choosing the thickness of composite geomembrane based on engineering characteristics is also very important. For example, in highway engineering, a thickness of 0.5mm to 0.8mm is generally selected to improve leakage prevention and enhance soil bearing capacity; In hydraulic engineering, high water pressure is often encountered, so choosing a thickness of 0.8mm or more can meet the needs of the project.
4. Technical index reference
In addition to environmental and engineering characteristics, you can also refer to some technical indicators of composite geomembranes for selection. For example, indicators such as tensile strength, elongation at break, and tear strength can help you measure the quality of composite geomembranes and make reasonable thickness choices.
In summary, the thickness selection of composite geomembranes should be considered in conjunction with the usage environment, engineering characteristics, and technical indicators.
Post time: Apr-01-2025