Analysis of External Water Pressure for a Tunnel in Fractured Rocks

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left">Division of water permeability</td><td class="align_center">Strongly weathered zone</td><td class="align_center">Weak weathered zone</td><td class="align_center">Slightly weathered zone</td><td class="align_center">Lining</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">Permeability coefficient (cm/s)</td><td class="align_center">0.729</td><td class="align_center">0.041</td><td class="align_center">0.012</td><td class="align_center">0.00864</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Hydraulic conductivity in each plant zone.

Geofluids

tab1

Table 1

Table 1: Analysis of External Water Pressure for a Tunnel in Fractured Rocks 