Performance Analysis of Prefabricated Steel-Spring Floating-Slab Track and Its Application to Urban Express Rail Transit

Table 12

Wheel-rail safety indicators of the floating-slab-track bed.

Calculation working condition	Derailment coefficient						Wheel-load shedding rate
	L = 3.6 m			L = 4.8 m			L = 3.6 m			L = 4.8 m
	350	450	550	350	450	550	350	450	550	350	450	550
Straight line-140	0.181	0.184	0.184	0.190	0.189	0.189	0.154	0.157	0.158	0.152	0.153	0.155
Straight line-160	0.181	0.182	0.180	0.190	0.188	0.186	0.178	0.180	0.183	0.175	0.179	0.180
Straight line-200	0.186	0.189	0.195	0.182	0.189	0.194	0.267	0.284	0.280	0.283	0.284	0.278
Curve-140	0.301	0.306	0.305	0.293	0.307	0.312	0.283	0.287	0.287	0.289	0.294	0.294
Curve-160	0.271	0.272	0.278	0.268	0.272	0.273	0.283	0.286	0.295	0.302	0.305	0.306
Specified code limit [32, 33]	2.5			4.8			6.2			2.1

L: length.