Evaluation of Vertical Bearing Capacity for H section Steel Pile with Soil cement Ground Improvement

In recent years, works to improve existing structures and strengthen their seismic resistance have increased. Pile
construction in narrow spaces is constrained by the site and process. Furthermore, noise and industrial waste need to
be considered with regard to their effects on the surrounding environment. Therefore, a construction method of H
section steel pile construction combined with soil cement ground improvement using a mechanical agitator was
developed. This method is characterized by having no need to drill up to a fixed depth as in the pre boring pile
construction method. Instead, soil is agitated along with the cement milk at the original position. In this study, static
compression load tests on the soil-cement composite pile that were constructed with the mechanical agitator ground
improvement method were carried out to evaluate the vertical bearing capacity. Furthermore, it was evaluated the
performance of vertical bearing capacity on the H-section steel piles with soil-cement ground improvement to compare
the evaluation method as shown in the design specifications in Japan.