| 摘要 |
PURPOSE:To raise the operability of treatment for the head of in-situ piles by enabling a rotatable stirring head to jet a breaking agent toward horizontal and upward directions to be operated in the vertical and horizontal directions through a vertical rod. CONSTITUTION:A driver 2 having an AE agent-housing chamber 11 and a compressor 12, etc., is vertically set on the ground's surface through an uneven surface regulator 13. A guide rail 6 is vertically attached to the side of the driver 2 through upper and lower vertical jacks 5, and an expandible support beam 7 having a vertical rod 4 on its tip is attached to the rail 6 in a vertically movable manner. A stirring head 3 having a horizontal jet port 32 on its lower end and a vertical jet port 33 on its upside is attached to the lower end of the rod 4. The head 3 is turned by a drive motor 41 provided on the upper end of the rod 4, and AE agent is supplied from the camber 11 to the head 3. |
