Main claim: 1. A prefabricated spiral fitting comprising a pile body and a pile tip, characterized in that the pile body comprises a precast concrete pile disposed above and a steel pipe pile disposed below, the pile body end a rotating cap, a lower end of the pile is provided with a pile tip, and a top of the pile tip is provided with a ring-shaped steel plate for reducing the friction of the pile soil, and the diameter wa annular steel plate nnene okusinga diameter y’omubiri gwa pile ne 1 to 5 cm. kungulu w’omubiri gwa payipu kiweebwa spiral groove esengekeddwa okumpi n’obuwanvu bw’omubiri gwa payipu.
A concrete prefabricated spiral fitting for building, which mainly comprises a pile core with a trapezoidal section spiral disk on an outer circular surface, a pile body formed by dividing the upper and lower end plates of the inner end of the pile core, and an end plate and an end plate The upper end of the wing plate and the two plugging end plates with two opposing pressure pads for the grouting hole, the through hole in the pile core and the square Ekinnya eky’omunda n’ekyuma eky’enkomerero ekya wansi eky’ekyuma eky’enkomerero eky’okungulu byetooloddwa ekituli eky’omunda era ekituli ekikuba (grouting hole) eky’epulaati y’enkomerero biyungibwa. entuumu ekoleddwa mu ngeri ey’ekikugu esobola okukendeeza ku bucaafu bw’obutonde n’amaloboozi mu kiseera ky’okuzimba, era enkola nnyangu, ekiyinza okukekkereza ennyo abakozi n’okulongoosa obulungi bw’okuzimba.
