Coastal mud flat backfill large dimension stone area PHC pipe pile construction method

Abstract

The invention discloses a construction method for a PHC pipe pile in a coastal mud flat backfill large dimension stone area, relates to pile foundation construction, and belongs to the technical field of building construction, and the construction method comprises the following construction steps: 1, cleaning dimension stone in a backfill area; 2, feeding the PHC pipe pile in the driving process, and reversely pulling the driving slide pile; 3, processing the pipe piles with quality defects; and 4, solidifying the shallow sludge. In order to solve the construction problems of backfilling block stones, sludge and the like in a mud flat backfilling area, a block stone detection and cleaning technology is utilized; a sliding pile inverted pulling lifting technology; pile core cleaning and reinforcing technology; the mud jet grouting consolidation technology solves the construction difficulty of the PHC pipe pile in the mud flat backfill area, reduces the construction cost input, and ensures the progress and quality requirements of engineering construction.

Description

technical field [0001] The invention belongs to the technical field of building construction, relates to pile foundation construction, and in particular to a construction method of PHC pipe piles for backfilling large-scale boulder areas along tidal flats. Background technique [0002] With the development trend of relocation of smelting steel plants to coastal areas, the number of new steel plants or other projects on coastal beaches is gradually increasing, and such foundations are often backfilled with materials such as boulders, as one of the most commonly used pile foundations. -PHC pipe piles, the construction of PHC pipe piles in this kind of backfill area currently has the following difficult problems: (1) The backfill blocks are hidden because they are buried underground. Stone obstruction may directly cause the pile body to break, or the PHC pipe pile is blocked, and the pile head is broken after being hit for a long time, resulting in the PHC pipe pile being a was...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems that the pile body of the PHC pipe pile in the coastal beach backfilling large rock area is easy to break, the pile is difficult to feed, the pipe pile is not easy to connect, and the disturbance of the deep mud causes the weld seam of the pipe pile to crack or laterally tilt. A construction method of PHC pipe piles in coastal tidal flats backfilling large rock areas, realizing the construction of PHC pipe piles in tidal flats backfilling areas, reducing the risk of economic losses, and ensuring the progress of engineering construction

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