The influence of helix diameter configuration on helical pile bearing capacity

Abstract

Helical pile is an invention of pile foundation that has many advantages. Helical pile produced bearing capacity greater than other pile foundations. It because The Bearing capacity of helical pile is contributed by end bearing capacity (Qb), shaft friction bearing capacity (Qs) and bearing capacity of helix or cylindrical (Qcyc) along pile. On of the Several factors that influence bearing capacity of helical pile was the configuration of helix diameter arrangement. This research was a laboratory experiment using a box, sand as the medium and a miniature of steel pile. The diameter pile test was 1,5 cm and length was 63 cm. Each pile has three helix along the pile with a configuration of diameter from top to bottom was 10 cm – 8 cm – 6 cm and from top to bottom 6 cm – 8 cm – 10 cm. The kind of Loading test was used in this research was Quick Maintain Load (QML). From the research, It was found that the variation wich gave the most significant influence in remained the greatest bearing capacity was the pile with diameter configuration of helix from top to bottom 6 cm – 8 cm – 10 cm or pile D6810.