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What should you pay attention to when repairing geotextiles?
May 14,2024
When repairing damaged geotextiles, technical requirements should be met. The patch materials used to repair holes or cracks should be consistent with the geotextiles. The patch should extend at least 30 cm beyond the damaged geotextile. At the bottom of the landfill, if the geotextile crack exceeds 10% of the roll width, the damaged part must be cut off, and then the two geotextiles must be connected.
If the crack exceeds 10% of the roll width on a slope, the roll of geotextile must be removed and replaced with a new roll. The work shoes worn by construction personnel and the construction machinery used should not damage the geotextile. Construction personnel are not allowed to do anything on the laid geotextile that may damage the geotextile, such as smoking or poking the geotextile with sharp tools. The service life of composite geomembrane is mainly determined by whether the plastic film loses its anti-seepage and water-proofing function.
Therefore, the service life of the composite geomembrane is sufficient to meet the anti-seepage requirements of highway projects. Thermal connection must be strictly controlled to ensure that the geotextile patch and geotextile are tightly combined and there is no damage to the geotextile. Before the end of each day's laying, conduct a visual inspection of the geotextile surfaces laid that day to ensure that all damaged areas have been marked and repaired immediately, and that there are no foreign substances on the laying surface that may cause damage, such as fine needles, small nails, etc. .
The following technical requirements should be met when repairing damaged geotextiles: the patch material used to patch holes or cracks should be consistent with the geotextile. The patch should extend at least 30 cm beyond the damaged geotextile. Geosynthetic materials can be added to soil slopes to reinforce them. In terms of reinforcement function, compared with needle-punched geotextiles, geogrids and reinforced geotextiles can function under smaller strains. Needle-punched geotextiles have features that geogrids and woven geotextiles do not have. The in-plane water permeability of geosynthetic materials. In actual application, different geosynthetic materials can be used in combination to make the reinforcement effect better.
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