Seismic Stability of Subsea Tunnels Subjected to Seepage

<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 align="left" rowspan="2">Maximum displacement</td><td align="center" colspan="3">Overburden thickness </td></tr><tr class="thead"><td align="center">25 m</td><td align="center">35 m</td><td align="center">45 m</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td align="left"><span style="width: 32.875px;"><svg height="13.6625" id="M110" style="vertical-align:-0.0pt" version="1.1" viewbox="0 0 32.875 13.6625" width="32.875" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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t81.5 29.5q49 0 82 -27q45 -39 45 -123v-185q0 -60 35 -60q18 0 36 11zM275 84v156q-12 -6 -49 -23t-41 -19q-31 -14 -46 -31t-15 -43q0 -35 22.5 -55.5t48.5 -20.5q19 0 42 10.5t38 25.5z" id="x61"></path></g><g transform="matrix(.012,-0,0,-.012,26.569,5.437)"><path d="M474 0h-214v26q32 4 39 12t-5 28l-74 117q-39 -58 -64 -106q-16 -25 -10 -35t44 -16v-26h-186v26q46 6 64 17t48 49t85 120l-87 136q-23 36 -40 47t-58 16v26h199v-26q-31 -4 -36.5 -12.5t9.5 -29.5l59 -93q37 56 58 94q13 23 7 30t-40 11v26h183v-26q-47 -5 -65 -13.5
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</svg></span></td><td align="center">−0.154</td><td align="center">−0.247</td><td align="center">−0.343</td></tr><tr><td align="left"><span style="width: 33.587502px;"><svg height="13.6625" id="M111" style="vertical-align:-0.0pt" version="1.1" viewbox="0 0 33.587502 13.6625" width="33.587502" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg></span></td><td align="center">−4.382</td><td align="center">−5.169</td><td align="center">−5.930</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Maximum displacements of tunnel structure under different overburden thicknesses.

The Scientific World Journal

Seismic Stability of Subsea Tunnels Subjected to Seepage

Table 5