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, e el diametro de la piastra aciai anelara el xe pi grando del diametro de la pila de pila da 1 a 5 cm. La superficie del corpo pila la vien fornìda de un solvo spirado a disposta a la lunghezza del pila corporeo..
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 buxo inte ła pila de pila e ła piassa interiore de ła busa e ła piastra de fine ła piatara de ła piastra superiore łe vien in giro El buxo interno e el buso incredibiłe de ła piastra ła xe cołegada. El picoło prefabricà el pol ridur el ambiente e el rumore de l'equiłibrio, e el procèso el xe sénplise, che el pol far el laoro e mejorare el laoro e el mejora el laoro e el faxeva el laoro.
