Vertical adjustment method for soldier piles in top-down projects

In top-down projects, due to the need to bear large vertical loads, the design and construction of soldier piles should strictly control their vertical degrees. The most commonly used column verticality control methods are reviewed, and their applicabilities, advantages and disadvantages are analyzed. At the same time, combined with a top-down project in Nanjing, the quality control system of steel pipe soldier piles is proposed. It will have guiding significance for the future construction of top-down projects.