Concrete-filled steel tube anti-seismic bridge pile foundation and pile foundation construction method thereof

Abstract

The invention discloses a concrete-filled steel tube anti-seismic bridge pile foundation and a pile foundation construction method thereof. The concrete-filled steel tube anti-seismic bridge pile foundation comprises a fixed base, a construction groove is formed in the surface of one side of the fixed base, a supporting plastic barrel is fixedly connected to the bottom surface of the constructiongroove, and a concrete cylinder is fixedly poured on the surface of the other side of the supporting plastic barrel. A positioning groove is formed in the surface of the other end of the concrete cylinder, a steel tube is fixedly inserted into the side face of the concrete cylinder, one end of the steel tube is inserted into the bottom of the construction groove, a positioning block is fixedly welded to the side face of the steel tube, and the side face of the positioning block is inserted into the side face of the positioning groove. Communication notches are formed in the two sides of one end of the steel tube correspondingly, a concrete pile body is fixedly poured on the side face of the steel tube, and one end of the concrete pile body is connected to the bottom face of the construction groove in a pouring mode. Therefore, the efficient and convenient performance of construction can be greatly improved, and the structural strength and the use safety of the pile foundation are guaranteed.

Description

technical field [0001] The invention relates to the field of bridge pile foundations, in particular to a concrete-filled steel tube seismic bridge pile foundation and a pile foundation construction method. Background technique [0002] In the process of bridge construction, in order to facilitate subsequent laying and construction safety, the pile foundation is generally poured first to form a stable supporting structure. [0003] However, the existing bridge pile foundation structures are mostly poured directly inside the foundation pit, so the joint area with the bottom surface is small, the stability is insufficient, and it cannot be reinforced from the side, which affects the structural strength, and is not conducive to use. It is troublesome to operate and maintain later, and a new structure and method need to be proposed. SUMMARY OF THE INVENTION [0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a concrete...

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Problems solved by technology

[0003] However, most of the existing bridge pile foundation structures are poured directly inside the foundation pit, so the bonding area with the bottom surface is small, the stability is insufficient, and it cannot be reinforced from the side, which affects the structural strength, and is not conducive to use. Operation and post-maintenance are troublesome, and a new structure and method need to be proposed

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