Full-Scale Laboratory Test of Cutting Large-Diameter Piles Directly by Shield Cutterhead

Table 4

Vibration of the cutters.

Position of cut	Center cutter holder		9# cutter holder
	Axial vibration acceleration of cutter (g)	Radial vibration acceleration of cutter (g)	Circumferential vibration acceleration of cutter (g)
Concrete layer	−0.563–0.495	−0.929–1.077	—
Reinforced concrete layer	−0.952–1.272	−3.714–3.084	−2.188–1.556