Because of its high compressibility, low bearing capacity and low shear strength, many industrial factory floors in coastal areas have serious settlement, cracking and inclination after completion, which leads to the failure of normal production. PHC construction technology is a common construction technology in soft soil foundation treatment, which has many advantages such as stability, reliability and high bearing capacity, but it needs quality control from many aspects. The design of super-long piles in the current code is not based on the bearing deformation mechanism of super-long piles. The contradiction between theory and practice makes it not only the need of the development of pile foundation theory itself, but also the urgent requirement of engineering. In this paper, the advantages of PHC pipe pile are comprehensively expounded, and the construction stage of PHC pipe pile in soft soil foundation is introduced from the construction stage of PHC pipe pile applied to civil engineering foundation in soft soil foundation, and the super-long prestress of super-long PHC pipe pile in soft soil foundation is analyzed and discussed.

Xiaoyan Qin. Analysis and Research on the Superlong Prestress of PHC Pipe Piles in Soft Soil Foundation. International Journal of Frontiers in Engineering Technology (2023), Vol. 5, Issue 7: 66-70. https://doi.org/10.25236/IJFET.2023.050710.

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