Effect of Cement Asphalt Mortar Debonding on Dynamic Properties of CRTS II Slab Ballastless Track

Table 2

The maximum dynamic response of system components.

	Vertical vibration acceleration/g						Vertical displacement/mm
	Car body	Bogies	Wheel sets	Rail	Slab	Concrete supporting layer	Rail
No debonding	0.028	0.273	2.875	70.525	5.81	5.18	0.776
Debonding length is 0.65 m	0.029	0.274	2.876	70.553	6.03	4.02	0.793
Change ratio (%)	3.57	0.36	0.03	0.04	3.78	−22.39	2.19
	Vertical displacement/mm		Wheel/rail vertical force/kN		The fulcrum reaction force of rail/kN	Dynamic stress of CA mortar layer/kPa	Dynamic stress of subgrade/kPa
	Slab	Concrete supporting layer	Maximum	Minimum
No debonding	0.284	0.283	116.4	16.83	33.431	25.22	24.90
Debonding length is 0.65 m	0.288	0.271	116.4	16.73	32.932	111.45	24.06
Change ratio (%)	1.40	−4.24	0	−0.59	−1.49	341.91	−3.37