Dynamic Responses of Soils around a One-Hole Double-Track Tunnel with the Metro Train Meeting

Table 2

Train parameters.

Parameters		Unit	Value
Vehicle length (trailer/motor power car)		m	24.4/22.8
Body width (floor area)		m	3
Body height (when bowing down)		m	≤3.8
Axle load		t	16
Wheel set weight		kg·m^2	2080
Rotating inertia of wheel-to-wheel roll		kg·m^2	749
Rotating inertia of wheel set nodding head		kg·m^2	81
Rotating inertia of wheel set shaking head		kg·m^2	1026
Frame weight		kg	2310
Rolling inertia of frame		kg·m^2	2080
Rotating inertia of nodding head of frame		kg·m^2	1405
Rotating inertia of shaking head of frame		kg·m^2	2450
Rolling inertia of car body		t·m^2	159.3
Rotating inertia of body nodding		t·m^2	2351.2
Moment of inertia of car body shaking head		t·m^2	2033.9
Longitudinal stiffness of primary suspension (per axle box)		kN/mm	17
Transverse stiffness of primary suspension (per axle box)		kN/mm	1.6
Vertical stiffness of primary suspension (per axle box)		kN/mm	1.6
Longitudinal stiffness of secondary suspension		N/mm	165
Lateral stiffness of secondary suspension		N/mm	165
Vertical stiffness of secondary suspension		N/mm	373
Wheel rolling circle radius		m	0.42
Wheelbase		m	2.5
Bogie centre distance		m	15.7