| 摘要 |
PURPOSE: A composite pile construction method using a hardening excavation process is provided to reduce the connection length of an existing pile and improve the end ground by constructing a gravel pile on a lower part and constructing a steel pipe pile or a concrete pile on an upper part. CONSTITUTION: A composite pile construction method using a hardening excavation process comprises following steps. The ground is drilled and excavated by rotating a casing auger to the fixed point of a weak soil foundation. Compaction material(10) is charged into the lower part of the drilled hole. The charged compaction material is compacted by a hammer(11). The bulb of the gravel pile is formed by repeating the compaction process. |
