Experimental Study on Seepage Characteristics of Fractured Rock Mass under Different Stress Conditions

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left" rowspan="2">Confining pressure/MPa</td><td class="align_center" colspan="2">Stress/MPa</td><td class="align_center" colspan="2">Permeability coefficient/10<sup>-7</sup> cm·s<sup>-1</sup></td></tr><tr class="thead"><td class="align_center">Peak value</td><td class="align_center">Residual value</td><td class="align_center">Initial value</td><td class="align_center">Maximum</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">2</td><td class="align_center">14.0</td><td class="align_center">9.5</td><td class="align_center">323</td><td class="align_center">567</td></tr><tr><td class="align_left">4</td><td class="align_center">18.6</td><td class="align_center">15.2</td><td class="align_center">191</td><td class="align_center">214</td></tr><tr><td class="align_left">6</td><td class="align_center">31.2</td><td class="align_center">22.1</td><td class="align_center">98</td><td class="align_center">152</td></tr><tr><td class="align_left">8</td><td class="align_center">39.8</td><td class="align_center">27.1</td><td class="align_center">47</td><td class="align_center">97</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Triaxial permeability test results under different confining pressures.</div>

Geofluids

tab3

Table 3

Table 3: Experimental Study on Seepage Characteristics of Fractured Rock Mass under Different Stress Conditions 