Prestressed concrete pipe pile and construction method thereof

By using a rebound pin mechanism and expansion bolt in the prestressed concrete pipe piles for quick connection, and grouting to form a concrete reinforcement head at the connection position, the problems of low construction efficiency and weak connection position strength in the prior art are solved, and the rapid extension and reinforcement effect are achieved.

CN119686300APending Publication Date: 2025-03-25BEIJING CHANGDAO MUNICIPAL ENG GRP CO LTD
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Patent Information

Application Number
CN202510106182.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-23
Publication Date
2025-03-25

AI Technical Summary

Technical Problem

During construction, existing prestressed concrete pipe piles need to be extended between segments due to depth requirements, and traditional bolt connections take a long time and have weak strength, which affects construction efficiency and safety.

Method used

The rebound latch mechanism and expansion bolts are used for quick connection to achieve rapid connection and lengthening of prestressed concrete pipe piles, and the concrete reinforcement head reinforcement position is formed through grouting.

Benefits of technology

The rapid lengthening of prestressed concrete pipe piles is achieved, the construction efficiency is improved, and the operation inconvenience and weak strength in traditional connection methods are avoided. At the same time, the strength of the connection position is increased through the reinforcement head.

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Abstract

The invention discloses a prestressed concrete pipe pile and a construction method thereof, the prestressed concrete pipe pile comprises an upper pipe pile section, a lower pipe pile section and a connecting section for connecting the upper pipe pile section and the lower pipe pile section, the lower end of the connecting section is fixedly connected with the lower pipe pile section through an expansion bolt, and the upper end of the connecting section is fixedly connected with the upper pipe pile section through a rebound bolt mechanism; a plurality of protruding columns are distributed at the upper end of the connecting section in the annular direction at intervals and correspondingly inserted into the bottom face mounting holes, the springback type plug pin mechanism comprises a disc and a plurality of plug pins distributed at intervals in the annular direction of the disc, a plurality of springback holes for containing the plug pins are formed in the outer edge of the disc at intervals, and reset springs are arranged in the springback holes. One end of the reset spring is fixed to the end face of the inner wall of the rebound hole, and the other end of the reset spring is fixed to the bolt to drive the bolt to point into the transverse insertion hole of the protruding column to form locking. The prestressed concrete pipe pile has the advantages that the prestressed concrete pipe pile sections can be quickly lengthened, and the structural strength of the positions of the connecting sections is improved by constructing the concrete reinforcing heads.
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