Large-Scale Shaking Table Test of Seismic Response Laws for a Shallow Double-Arch Tunnel under Unsymmetrical Pressure with a Damping Layer

Table 3

Rock and lining material parameters.

Materials	E (MPa)	μ	φ (°)	C (kPa)	γ (kN·m^−3)
V CSR	650	0.40	26	120	19
IV CSR	9450	0.33	35	560	19
Lining	17250	0.2	—	—	24

E: elastic modulus, μ: Poisson ratio, φ: internal friction angle, C: cohesion, γ: bulk density, V CSR: V class surrounding rock.