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

<table class="table-group" id="tab5"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left">Number</td><td class="align_center">1</td><td class="align_center">2</td><td class="align_center">3</td><td class="align_center">4</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left"><i>R</i><sub>n</sub></td><td class="align_center">0.9650</td><td class="align_center">0.9650</td><td class="align_center">0.9650</td><td class="align_center">0.9650</td></tr><tr><td class="align_left">Decreasing percentage</td><td class="align_center">—</td><td class="align_center">0</td><td class="align_center">0</td><td class="align_center">0</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Effect of number of boreholes on the end resistance of the existing foundation pile.</div>

Advances in Civil Engineering

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Table 5

Table 5: Influence of Underpinning Pile Drilling Construction on the Bearing Behavior of Existing Loaded Foundation Piles: Case Study 