过去曾经使用过各种材料加固堤坝或道路的软弱基土。近来,农产品和工业产品都被使用过。但是最近发现合成纤维布比许多常用的材料更为经济、更便于运输、强度更大和耐久性更好。 In the past, a variety of materials have been used to reinforce the weak foundation of dams or roads. Recently, both agricultural products and industrial products have been used. However, synthetic fibers have recently been found to be more economical, transportable, stronger and more durable than many commonly used materials.