The Ground Settlement and the Existing Pipeline Response Induced by the Nonsynchronous Construction of a Twin-Tunnel

Table 2

Mechanical parameters of the HS model of the soil layer.

Soil layer	(kN/m^2)	(kN/m^2)	(kN/m^2)			(kN/m^2)		(°)
Fill	8054	8054	24162	0.65	0.9	100	0.8	8
Clay	12167	12167	36501	0.39	0.9	100	0.7	10
Silty clay	13286	13286	39858	0.38	0.9	100	0.6	17