With the growth of our national economy and the improvement of living standards, geotextile membranes have found increasingly widespread application. However, even for the same type of geotextile membrane, service life can vary significantly depending on the specific location and operating conditions. So, how can we properly utilize geotextile membranes to maximize their service life? Today, let’s explore the key precautions to observe when using these materials.
When utilizing geotextile membranes, it is highly recommended to minimize exposure to light. If the membrane can be effectively shielded from light during its service life, this provides a substantial guarantee for extending its overall longevity.
During installation, the membrane should be laid with moderate slack, allowing for a certain margin of expansion and contraction; excessive stretching is strictly prohibited. Temperature fluctuations and soil settlement can easily cause taut membranes to crack; laying the membrane with a degree of slack effectively mitigates such risks. Installation should ideally proceed down the slope—from top to bottom—to minimize the number of transverse seams. The overlap width between adjacent membrane sheets must meet established standards: welded overlaps should be no less than 10 cm wide, while bonded overlaps should be no less than 15 cm wide.
Construction personnel must wear soft-soled footwear while working; walking on the membrane in hard-soled boots or shoes with exposed nails is strictly forbidden. Construction tools should be handled with care to avoid dropping them heavily. Heavy machinery and vehicles are prohibited from driving directly over the geotextile membrane; if such operations are necessary, temporary protective layers—such as wooden planks or sandbags—must be laid down first. Furthermore, weather conditions during construction must be strictly monitored. Installation and welding operations are prohibited during rainy or foggy weather, in winds exceeding Force 5, or when ambient temperatures drop below 5°C, to prevent the membrane from being torn by wind or to ensure that weld quality meets required standards.
Once the engineering project is commissioned, a mechanism for periodic inspection must be established. Particular attention should be paid to critical areas such as weld seams, slope transition points, and zones prone to water accumulation, to check for any signs of damage, blistering, settlement-induced cracking, or root penetration. Within the impermeable zone, activities such as pile driving, drilling, or dragging hard objects are strictly prohibited to prevent accidental damage caused by human activity.
For specialized applications—such as landfill sites or chemical containment ponds—it is essential to select geotextile membranes specifically engineered for high corrosion resistance and anti-aging properties, and to conduct periodic performance testing on the membrane material. Any minor damage detected must be repaired immediately to prevent the leakage from spreading and to ensure the long-term stability and integrity of the impermeable system. Industry experts emphasize that, when it comes to the use of geomembranes, no detail is too trivial; every single aspect bears directly upon both project quality and environmental safety. Contractors and end-users must strictly adhere to established norms and standards, implementing comprehensive controls throughout the entire process, in order to truly harness the geomembranes’ impermeability and fortify the project’s “impermeability lifeline.”
Post time: Apr-08-2026
