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 Okusikagana kw’ettaka lya payipu. obuwanvu bw’ekyuma ekikuŋŋaanyiziddwa (annular steel plate) kunene okusinga obuwanvu bw’omubiri gw’entuumu ku sentimita emu ku 5, era kungulu w’omubiri gwa payipu kusengekebwa okuyita mu buwanvu bw’obuwanvu bw’omubiri gw’entuumu. 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 Omubiri gwa pile tegwonoonese, ekizimbe kyangu, kyangu era kya mangu, era kisaanira okumanyibwa n’okukozesa.
