What situation will cause a decrease in the tear resistance of geotextiles. Geomembrane not only has good anti-seepage performance, but also has good tear resistance. However, in some special construction situations, its tear resistance may decrease. Let’s take a look at the introduction of geomembrane manufacturers to this issue.
When we lay geomembranes on the soil above, the self weight stress of the soil will significantly increase, which may lead to small-scale settlement of the reservoir under the dual effects of gravity and water pressure, causing the geomembrane in the settlement zone to bear a larger load. When the load exceeds the load that the material itself can bear, tearing will occur, resulting in local leakage in the material protection zone.
Therefore, we can see that the thickness and gravity of the soil above have a significant impact on the tear resistance of the geomembrane. In addition, when the water level in the reservoir drops sharply, the water level of the soil in the reservoir will also decrease, which will cause excessive pore water pressure in the soil body and may also cause unstable factors in the anti-seepage system structure of the material, leading to tearing.
The joint treatment of geomembrane is a key procedure in construction, which directly affects the service life of the project. In addition, under special construction conditions, it is necessary to first understand the construction conditions and then choose the appropriate type of geotextile to achieve the expected usage effect.
Post time: Mar-15-2024