Experimental Investigation on the Influence of Regional Concrete Spalling on Shield Tunnel Segments

Table 4

Physical and mechanical parameters of segment concrete.

Parameters of physical mechanics	Prototype value	Model value	Corresponding prototype value
Elasticity modulus (GPa)	34.5	2.875	34.4
Standard value for uniaxial compressive strength (MPa)	32.4	2.7	32.0
Equivalent compressional stiffness for the circumferential main reinforcement (N)	2.434e9	1.803e5	2.817e9