Geotube is a kind of material with high tensile strength, good ventilatedperformance, high resistance toacid, alkali andmicroorganism erosion. Geotube is made of 100% polyethylene or polypropylene. It can speed the concretion of soft base and reduce the time of concretion, also can reduce the time and sand volume of construction touse geotubefor makesand stakein highway, railroad, airport, sea port, dam project for processing soft base. The diameter of geotube is 10cm and 12cm normally , the tensile strength in CD and MD is more than 20KN/m, the length of geotubeaccording to the requirement of actual project.