The utility model provides a prefabricated spiral fitting, which comprises a pile body and a pile tip. The pile body comprises a precast concrete pile disposed above and a steel pipe pile disposed under the pile body. The pile body end is provided with a rotating cap cover, and the lower end of the pile body The pile tip is provided, and the top of the pile tip is provided with an annular steel plate for reducing the friction of Ti daga ti pila. ti diametro ti annular nga asero a plato ket dakdakkel ngem ti diametro ti bagi ti bunton babaen ti 1 aginggana ti 5 cm, ken ti rabaw ti bagi ti bunton ket naurnos iti kaatiddog a direksion ti bagi ti bunton. spiral groove..
The utility model is suitable for construction in a region with poor geological conditions, and the pile body is pressed into the underground soil layer to ensure that the pile body is not damaged, and the annular steel plate is slightly larger than the diameter of the pile body, which can greatly reduce the side of the pile body into the process. The friction resistance accelerates the construction progress. The utility model greatly improves the construction speed, and at the same time ensures the pile Ti bagi ket saan a nadadael, ti estruktura ket simple, kombeniente ken napardas, ken maibagay para iti popularisasion ken panagusar..
