Abstract:Taking Shanghai Bailonggang Wastewater Treatment Plant as an example, the construction process quality control of reinforced composite pile implemented in the super-large deep foundation pit is analyzed. Starting from the quality control procedure and essentials in the construction process of cement mixing pile and special-shaped pile, the significance of each quality control essential is introduced. The influences of the surrounding environment and detection on the quality of pile foundation are analyzed to ensure the construction quality of reinforced composite pile and reasonably judge the quality of pile foundation, which can be referred for the similar projects.