Research on Design Parameters and Fatigue Life of Tunnel Bottom Structure of Single-Track Ballasted Heavy-Haul Railway Tunnel with 40-Ton Axle Load

<table class="table-group" id="tab8"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left">Thickness of bedding (cm)</td><td class="align_center">10</td><td class="align_center">15</td><td class="align_center">20</td><td class="align_center">30</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">Service life (years)</td><td class="align_center">32</td><td class="align_center">47</td><td class="align_center">58</td><td class="align_center">89</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Service life of tunnel bottom structure with different bottom thickness.</div>

Mathematical Problems in Engineering

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Table 8

Table 8: Research on Design Parameters and Fatigue Life of Tunnel Bottom Structure of Single-Track Ballasted Heavy-Haul Railway Tunnel with 40-Ton Axle Load 

Table 8 | Research on Design Parameters and Fatigue Life of Tunnel Bottom Structure of Single-Track Ballasted Heavy-Haul Railway Tunnel with 40-Ton Axle Load 