Prestressed concrete pipe pile joint

Abstract

The invention discloses a prestressed concrete pipe pile joint. The prestressed concrete pipe pile joint comprises an end plate connected with a pipe pile; the end plate comprises a sub end plate anda main end plate; a boss is arranged at the middle part of the sub end plate; a hole groove is formed in the side surface of the boss; a groove matched with the boss in shape is formed in the middle part of the main end plate; a hole groove corresponding to the hole groove in the boss is formed in the side wall of the groove; the sub end plate is connected with the main end plate through a fastening piece; in addition, the main end plate can be further arranged as a through hole matched with the boss; a through hole can also be formed in the boss; and the through hole communicates with the hole groove. The prestressed concrete pipe pile joint has the advantages of simple operation, low cost, firm connection and high safety; and the prestressed concrete pipe pile joint is suitable for connection of prestressed concrete pipe piles.

Description

technical field [0001] The invention relates to a joint, more specifically, to a prestressed concrete pipe pile joint. Background technique [0002] Prestressed concrete pipe piles have been widely used due to the characteristics of high single pile bearing capacity, fast construction speed and reasonable price. At present, most projects use traditional flat plate manual welding in the treatment of pipe pile joints. The upper and lower flat end plates are aligned with the groove and welded. The weld seam must be continuous and full without slag inclusions or pores. The number of welding layers should be two layers. Above, after the welded pile head has been naturally cooled for 8 minutes, driving or pile pressing can be continued, and the entire welding and cooling time must exceed 30 minutes. The traditional pile connection technology takes a long time to weld, and the construction efficiency is low; it is difficult to detect the weld seam, and it is prone to weld quality ...

AI Technical Summary

Problems solved by technology

At present, most projects use traditional flat plate manual welding in the treatment of pipe pile joints. The upper and lower flat end plates are aligned with the groove and welded. The weld seam must be continuous and full without slag inclusions or pores. The number of welding layers should be two layers. Above, after the welded pile head is naturally cooled for 8 minutes, it can continue to drive or press the pile. The whole welding and cooling time should exceed 30 minutes

The traditional pile connection technology takes a long time to weld, and the construction efficiency is low; it is difficult to detect the weld seam, and it is prone to weld quality problems, and it is easy to open the weld during the construction of the pipe pile; the weld layer of the weld seam is thin, and it is easily corroded by groundwater, which affects the durability of the pipe pile and safety; it is not conducive to the integrity detection of the lower section of the pipe pile; welding is time-consuming and laborious, which is not conducive to quality control and supervision

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