Earth drill type enlarged bottom piling method (HND construction ,method) is a basic construction method with high safety and economy. It has features such as realizing support force of 2 to 3 times compared with straight pile of the same axial part diameter in about 1/2 excavated soil and concrete amount (in case of the same support force), etc. We have obtained a rating froim the Japan Building Center on the date.
Features of the construction method
In piling of HND pile, excavation at the bottom is carried out by the enlarged bucket exclusive for HND pile to form a bottom pile. In addition to earth drilling piling method, we will drill in either the all casing method or the reverse circulation method.
Construction procedures
Status of construction site
