Geotextiles should be protected from damage before installation. The geotextile rolls should be piled up in a place where there is no water accumulation, the height of the pile should not exceed four rolls, and the identification piece of the roll can be seen. Geotextile rolls must be covered with opaque materials to prevent UV aging. During the storage process, the integrity of the label and the integrity of the information should be maintained. Geotextiles must be protected from damage during transportation, including on-site transportation from material storage to work. Geotextiles that are physically damaged must be repaired. Geotextiles that are severely worn cannot be used. Any geotextile that comes into contact with leaking chemical reagents is not allowed to be used in this project.