A New Statistical Parameter for Determining Joint Roughness Coefficient (JRC) considering the Shear Direction and Contribution of Different Protrusions

<table class="table-group" id="tab5"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left">Sampling interval (mm)</td><td class="align_center">Functional relationship</td><td class="align_center"><i>R</i><sup>2</sup></td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">0.5</td><td class="align_center">JRC = 14.602ln(WPA) - 12.536</td><td class="align_center">0.9643</td></tr><tr><td class="align_left">1</td><td class="align_center">JRC = 11.871ln(WPA) - 6.747</td><td class="align_center">0.9547</td></tr><tr><td class="align_left">2</td><td class="align_center">JRC = 9.496ln(WPA) − 1.585</td><td class="align_center">0.9450</td></tr><tr><td class="align_left">4</td><td class="align_center">JRC = 8.335ln(WPA) + 1.337</td><td class="align_center">0.9379</td></tr><tr><td class="align_left">10</td><td class="align_center">JRC = 7.370ln(WPA) + 4.406</td><td class="align_center">0.9311</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>The fitting formulas between WPA and JRC under different sampling intervals.</div>

Advances in Civil Engineering

tab5

Table 5

Table 5: A New Statistical Parameter for Determining Joint Roughness Coefficient (JRC) considering the Shear Direction and Contribution of Different Protrusions 

Table 5 | A New Statistical Parameter for Determining Joint Roughness Coefficient (JRC) considering the Shear Direction and Contribution of Different Protrusions 