Structural Dynamic Response of a Shield Tunnel under Aircraft Taxiing Load

Table 1

Aircraft parameters.

Parameters	A380-800F
Maximum takeoff weight (kN)	5600
Empty weight (kN)	2800
The load distribution coefficient of main landing gears	0.97
Number of main landing gears	4
Main landing gear structure	Biaxial and double-wheeled	Triaxial and double-wheeled
Main landing gear wheelbase (m)	1.35/1.8	1.55/1.75
Main landing gear maximum tire pressure (MPa)	1.47
Main landing gear minimum tire pressure (MPa)	0.735
Main landing gear single-wheel load (kN)	271.6
Main landing gear wheel print area (m^2)	0.183
Main landing gear wheel print length (m)	0.594