Experimental Study on Seismic Dynamic Characteristics of Shallow-Bias Tunnel with a Small Space

<table class="fixed-width table-group" id="tab2"><tr><td><table class="table"><colgroup><col style="width:19.16em"/><col style="width:9.46em"/></colgroup><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left">Parameters</td><td class="align_center">Specification</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">Platform size</td><td class="align_center">4m×4m</td></tr><tr><td class="align_left">Degree of freedom of motion</td><td class="align_center">6Dofs in 3directions</td></tr><tr><td class="align_left">Center distance of table-board</td><td class="align_center">6-50m</td></tr><tr><td class="align_left">Load capacity</td><td class="align_center">30ton</td></tr><tr><td class="align_left" colspan="2"><hr/></td></tr><tr><td class="align_left" rowspan="3">Maximum displacement and acceleration</td><td class="align_center">X:250mm, ±1.0g</td></tr><tr><td class="align_center">Y:250mm, ±1.0g</td></tr><tr><td class="align_center">Z:250mm, ±1.6g</td></tr><tr><td class="align_left" colspan="2"><hr/></td></tr><tr><td class="align_left">Working frequency</td><td class="align_center">0.1-50Hz</td></tr><tr><td class="align_left">Maximum eccentricity moment</td><td class="align_center">20 ton·m</td></tr><tr><td class="align_left">Maximum overturning moment</td><td class="align_center">30ton·m</td></tr><tr><td class="align_left">Maximum seismic velocity</td><td class="align_center">1000mm/s</td></tr><tr><td class="align_left">Maximum vibration velocity of simple string</td><td class="align_center">750mm/s</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Main parameters of shaking table.</div>

Shock and Vibration

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Table 2

Table 2: Experimental Study on Seismic Dynamic Characteristics of Shallow-Bias Tunnel with a Small Space 