They are used in road construction in various ways. They may be laid over the soil and rock base to help segregate the subsoil and the fill, and they may be laid over the base directly under the surface asphalt layers.

• 在建造道路方面,土工织物有着多种用途,它们可覆盖在土层或岩石上面,以分离下层土与填充土；也可以直接铺放在路基上,然后覆盖沥青。