新型建筑材料──土工布土工布是继钢材、水泥、木材之后的第四种新型建筑材料，在工程中能起到加强、防护、排水、反滤、隔离、防渗等作用，在水利、交通以及各类建筑工程中起到了十分重要的作用。目前，土工布在各发达国家已得到广泛应用。我国从80年代初开始将土工布合成材 New type of building materials: geotextile geotextile is the fourth new type of building material after steel, cement, and wood. It can play a role in strengthening, protecting, draining, filtering, separating, impervious, etc. Transportation and various construction projects have played a very important role. At present, geotextiles have been widely used in various developed countries. Our country began to use geotextiles in the early 80s