A Structural Calculation Model of Shield Tunnel Segment: Heterogeneous Equivalent Beam Model

Table 3

Results comparison of inner force on crown section.

Calculation models	M (kN·m)	N (kN)	Mean value		Relative difference value (%)
			M (kN·m)	N (kN)	M	N
UR model	76.94	1344.35	66.08	1347.79	16.43	0.26
MUR model	77.10	1344.22			16.68	0.26
Multihinge ring mode	38.40	1357.10			41.89	0.69
HEB model	71.89	1345.48			8.79	0.17

Note: the reduction coefficient in modified uniform rigidity model was selected as .