长丝土工布根据加工方法不同能够划分为机织土工布等，以玻璃纤维(或其他合成纤维)为增强材料，其间主要运用涤纶和丙纶。
Filament geotextiles can be divided into woven geotextiles according to different processing methods. Glass fibers (or other synthetic fibers) are used as reinforcing materials, and polyester and polypropylene fibers are mainly used.
其老化功能指标直接影响工程的寿命、安全性和可靠性。老化功能的研讨具有很高的经济意义和战略意义，并作为人造工程或体系的组成部分的纺织品。
Its aging function index directly affects the life, safety and reliability of the project. The study of aging function is of great economic and strategic significance, and textiles as an integral part of man-made engineering or system.
在加工、储存和运用过程中，易受内部要素和外部要素的共同作用，以致最后损失运用价值的现象，称为老化。长丝土工布强度下降和宏观结构损坏等，是一种不可逆改变。
In the process of processing, storage and operation, it is vulnerable to the interaction of internal factors kongzhigui.37ix.com.cncewen.37ix.com.cnjiedi.37ix.com.cnxiaoxie.37ix.com.cnand external factors, changyi.71ix.comhuganqi.37ix.com.cnresulting in the final loss of application value, which is called aging. It is an irreversible change that the strength of filament geotextiles decreases and the macrostructure is damaged.
利用长丝土工布的不透水性和杰出的排水功能，先将渗水部位表层杂物铲除，再按反滤要求，分层填铺。分层铺真滤料，随挖随填，避免沟壁崩塌。
Using the impermeability and outstanding drainage function of filament geotextiles, the surface debris in the seepage area is removed first, and then the layer-by-layer filling is carried out according to the requirements of filtration. Layered true filter material, with digging and filling, to avoid the collapse of the ditch wall.