北美铁路为了加强排水不良的区间线路道床的稳定性,采用了未经编织的合成土工织物加固路基。这种材料坚固、经久耐用。当使用这种土工织物时,其边缘部分用于吸收路基顶面的水分,以避免多余的水分降低路基的土壤强度。渗漏的水分流到铺设在线路两侧的排水管中。土工织物广泛用于道口和道岔以及 In order to strengthen the stability of the ballast in the section of poor drainage, the North American Railway used non-woven synthetic geotextile to reinforce the roadbed. This material is strong and durable. When using such geotextile, the edge portion of the geotextile is used to absorb moisture from the top surface of the subgrade to prevent excess moisture from reducing the soil strength of the subgrade. Leaking moisture flows into drains laid on both sides of the circuit. Geotextiles are widely used in crossing and turnout as well