Analysis of Underwater Topographic Survey of Stilling Basin Based on Unmanned Survey System

<table class="table-group" id="tab5"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left"><i>j</i></td><td class="align_center">Safety grade</td><td class="align_center">Minimum (m)</td><td class="align_center">Maximum (m)</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">1</td><td class="align_center">Normal</td><td class="align_center">0</td><td class="align_center">0.209</td></tr><tr><td class="align_left">2</td><td class="align_center">Basically normal</td><td class="align_center">0.209</td><td class="align_center">0.418</td></tr><tr><td class="align_left">3</td><td class="align_center">Mildly abnormal</td><td class="align_center">0.418</td><td class="align_center">0.832</td></tr><tr><td class="align_left">4</td><td class="align_center">Abnormal</td><td class="align_center">0.832</td><td class="align_center">1.246</td></tr><tr><td class="align_left">5</td><td class="align_center">Dangerous</td><td class="align_center">1.246</td><td class="align_center">+</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>The safety grade classification of sedimentation height of bottom outlet stilling basin.</div>

Advances in Materials Science and Engineering

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Table 5

Table 5: Analysis of Underwater Topographic Survey of Stilling Basin Based on Unmanned Survey System 