1·Prestressed concrete pipe pile which is widely used in the recent decade is a type of precast concrete pile.
预应力混凝土管桩是近十余年来应用较多的一种预制桩型。
2·In order to solve the torsional problem of precast concrete screw pile in construction, the torsional behaviors of precast concrete pile body were designed strongly and studied by experimental method.
为了解决预制混凝土螺旋桩的抗扭问题，对预制混凝土桩体的抗扭性能进行了加强设计及试验研究。