In the cement milk pile construction method, precast concrete pile or steel pipe pile is used, and the pile ends have a circular opening. In this paper, we described laboratory experiments for a static axial compressive load test of single pile. The objective of the tests is to make clear the characteristics of the vertical end bearing capacity of the pile with an opening in the pile tip. We discuss the relationship of the bearing capacity with the tip shape, and propose a more suitable shape of the pile end for the cement milk method. Subsequently, we try to confirm the validity of the improved pile tip by actual size load experiments.

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