Experimental Research on the Transverse Effective Bending Rigidity of Shield Tunnels

Table 2

Values of η based on the concentrated loading pattern and realistic loading pattern.

Types	Concentrated loading pattern		Realistic loading pattern
	Calculated by the vertical diameter variations	Calculated by the horizontal diameter variations	Calculated by the vertical diameter variations	Calculated by the horizontal diameter variations
Straight-jointed	0.368–0.403	0.342–0.366	0.386–0.646	0.423–0.672
Stagger-jointed	0.546–0.649	0.521–0.658	0.618–0.729	0.587–0.761