Dynamic Response Characteristics of the Electric Domain Structure of Ferroelectric Materials to the Surrounding Rock Structure of a Heavy-Duty Railway with a Small-Clearance Crossing Tunnel

Table 1

Comparison of calculation results and formulas.

Surrounding rock level	Train axle weight (ton)	Tunnel form	Cumulative dynamic load threshold	Formula calculated value
III	26	Single-line ballastless	81.6	425.44
		Double-line ballast	143.2	425.44
			125.6	425.44
IV	26	Two-wire ballastless	129.5	425.44
	29		163.3	532.74
V	26		120.1	425.44
	29		164.1	532.74