| 摘要 |
PROBLEM TO BE SOLVED: To provide a ground improvement device that improves work efficiency of excavation and soil improvement by devising constitution of an agitation mixing device fitted to an arm of a base machine and achieving lateral agitation by lateral movement of the agitation mixing device and revolution of a plurality of excavation agitation shafts of the agitation mixing device.SOLUTION: There is provided a ground improvement device such that an excavation agitation mixing device 4 consists of a rotary drive part 5 fitted to an arm of a base machine and an excavation agitation operation part 6 driven by the rotary drive part 5, and the excavation agitation operation part 6 is constituted by providing laterally juxtaposing a plurality of excavation agitation shafts H each constituted by juxtaposing pluralities of groups of agitation bodies 7A projecting radially along a longitudinal axial direction and spiral blades 9A alternately in the axial direction, each excavation agitation shaft H having a predetermined longitudinal length corresponding to a depth of a planned ground-improved place of the ground, and being allowed to rotate on its axis by being driven by a drive shaft 10 of the rotary driving part 5 and also to revolve around any of arbitrary regions.SELECTED DRAWING: Figure 2 |
