Influence of Shield Tunnel Oblique Penetration Construction on Existing Large-Span Masonry Structures

Table 2

Physical and mechanical parameters of masonry buildings and shield construction.

Structure type		Unit weight (kN/m^3)	Poisson’s ratio	Elastic modulus E (Gp)	Constitutive model
Building	Foundation	23	0.25	20.4	Elastic model
	Floor	23	0.25	20.4
	Wall	20	0.2	1.9
Shield tunnel	Shield machine	25	0.2	230
	Segment	25	0.2	30