The Environmental Effects Induced by a Metro Shield Tunnel Side-Crossing on Adjacent Pile Foundations and Its Impact Partition

Table 1

Mechanical parameters of various materials.

Material	Unit weight (kN/m^3)	Height/thickness (m)	Passion’s ratio	Cohesion (kPa)	Friction angle (°)	Elastic modules (MPa)
Topsoil	20	2.1	0.3	45	14	5.94
Intermediary weathered mudstone	23.4	37.9	0.17	300	18	180
Segment	25	0.3	0.3	—	—	3.0 × 10^4
Grout	25	0.14	0.2	—	—	1.20 × 10^3
Pile	25	0.3	0.2	—	—	3.0 × 10^4