The utility model relates to the technical field of building
engineering, concretely is the inner support pair of spiral steel
pipe pile's pull
assembly, including a plurality of inner support components in the
pile pipe inside, the inner support component is from top to bottom once series connection, the inner support component is connected through the connecting sleeve between the upper and lower adjacent inner support components, and the inner support component includes the cross -shaped tube, and each end of cross -shaped tube all is installed with an inner support rod, and the inner support rod is connected with cross -shaped tube through
screw thread and is matched. In this inner support pair of spiral steel
pipe pile's pull
assembly, in the support effect aspect, the inner support component adopts the design that adjustable inner support rod is matched with cross -shaped tube, and the support piece of each inner support rod outer end abuts the pile pipe inner wall, can realize the even support to the pile pipe inner wall, avoids the
stress concentration phenomenon. The combination structure of the round groove shape support seat, spring and pressing plate in support piece, can be adjusted the support force according to the actual situation of the pile pipe inner wall self -
adaptation, further guarantees the support evenness, prevents the local deformation damage of the pile pipe, significantly improves the
structural stability and the
carrying capacity of spiral steel pipe pile.