| 摘要 |
PROBLEM TO BE SOLVED: To provide a pile driving machine that eliminates the need to move a device itself and can improve construction efficiency by providing one leader with both of an auger machine and a percussion drill.SOLUTION: An elevation frame 5 capable of moving up and down along one side face of a leader 1 is provided with a percussion drill machine 6 and a center hole type auger machine 7 located therebelow coaxially, and a pile cap 8 capable of interlocking the auger machine 7 is provided at a lower end part of the auger machine 7. When the auger machine 7 is in use, a steel pipe pile 9 is set to the pile cap 8 of the auger machine 7 and when the percussion drill machine is in use, the steel pipe pile 9 is detached from the pile cap 8 and an upper end part of the drill rod 10 is run through a hollow part of the auger machine 7 to be associatively connected to the percussion drill machine 6. |
