Research Article
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
Figure 6
Bending moment of invert structure of V-class surrounding rock heavy-duty railway tunnel.
(a) V-class surrounding rock 27 t axle load |
(b) V-class surrounding rock 30 t axle load |