Study on the Adaptability of Shield Tunnel Segments Orthogonal Crossing Grade III Loess Ground Fissure Section

Table 2

Material calculation parameters.

Material	Model	Density kN (m^3)	Poisson’s ratio	Cohesion kPa	Internal friction angle	Elastic modulus (MPa)
Soil	Modified Mohr–Coulomb	19	0.35	33	19°	27
Grouting layer	Elastic	21	0.25	—	—	1000
Segment lining	Elastic	25	0.2	—	—	34500