Influence of Underpinning Pile Drilling Construction on the Bearing Behavior of Existing Loaded Foundation Piles: Case Study

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr class="thead"><td class="align_left">Depth (m)</td><td class="align_center">10.85</td><td class="align_center">16.6</td><td class="align_center">19.6</td><td class="align_center">22.6</td><td class="align_center">25.1</td><td class="align_center">27.6</td></tr><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr><td class="align_left"><i>R</i><sub>h</sub></td><td class="align_center">0.9758</td><td class="align_center">0.9724</td><td class="align_center">0.9694</td><td class="align_center">0.9652</td><td class="align_center">0.9599</td><td class="align_center">0.9519</td></tr><tr><td class="align_left">Decreasing percentage</td><td class="align_center">—</td><td class="align_center">−0.3</td><td class="align_center">−0.7</td><td class="align_center">−1.1</td><td class="align_center">−1.6</td><td class="align_center">−2.4</td></tr><tr class="table-tr"><td colspan="7"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Effect of depth of drilling borehole on the end resistance of the existing foundation pile.</div>

Advances in Civil Engineering

tab3

Table 3

Table 3: Influence of Underpinning Pile Drilling Construction on the Bearing Behavior of Existing Loaded Foundation Piles: Case Study 