[Retracted] Engineering Application of Nanomaterial and Ferroelectric Domain Polarization to the Dynamic Structure of the Surrounding Rock of Heavy-Duty Railway with Small Clear Intersection Tunnel

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left">Train type</td><td class="align_center">Number of cars</td><td class="align_center">Length</td><td class="align_center">Frequency of use</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">Subway</td><td class="align_center">8</td><td class="align_center">244</td><td class="align_center">42</td></tr><tr><td class="align_left" colspan="4"><hr/></td></tr><tr><td class="align_left">High-speed rail</td><td class="align_center">15</td><td class="align_center">400</td><td class="align_center">60</td></tr><tr><td class="align_left" colspan="4"><hr/></td></tr><tr><td class="align_left" rowspan="2">Heavy-duty train</td><td class="align_center">11 times the subway</td><td class="align_center">6 times the subway</td><td class="align_center">12 times the subway</td></tr><tr><td class="align_center">7 times the subway</td><td class="align_center">4 times the subway</td><td class="align_center">7 times the subway</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Comparison of various train lengths and their frequency of use.</div>

Advances in Materials Science and Engineering

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Table 2

Table 2: [Retracted] Engineering Application of Nanomaterial and Ferroelectric Domain Polarization to the Dynamic Structure of the Surrounding Rock of Heavy-Duty Railway with Small Clear Intersection Tunnel 

Table 2 | [Retracted] Engineering Application of Nanomaterial and Ferroelectric Domain Polarization to the Dynamic Structure of the Surrounding Rock of Heavy-Duty Railway with Small Clear Intersection Tunnel 