Despite the occurrence of various problems, such as the remaining of existing piles due to existing pile extraction work, subsidence of the surrounding ground, and deterioration of the ground environment when using the former site, it is injected into the extraction holes formed after extraction of the existing piles. There is no provision in the filler and the drawing method itself. Therefore, in this study, the pile tip chucking type pulling method (power chucking method; PG method), which is one of the existing pile pulling methods, is characterized visually and quantitatively using MPS-CAE. Evaluation was performed. As a result, simulation of existing pile drawing work by the PG method can be performed in advance, and the amount of filler that meets the target strength can be selected.
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