Robust Analysis and Design of Bored Pile Considering Uncertain Parameters

Many high-rise buildings and bridges in the worlds are constructed using bored pile. To provide a safe design of this type of deep foundation, high-quality soil
data are needed which are normally obtained from laboratory testing. However, the contractor and the consultant often conduct only a limited field testing without performing laboratory tests. As a result, the capacity of bored
pile may deviate from the real value. This study aims to develop a framework for analysis and design of axial and lateral capacity of bored piles when only a few soil parameters are known. The proposed methodology uses analytical methods backed by numerical calculations according to relevant code of practice. The results indicate that as long as the analytical results are supported by the
numerical calculations, a robust design can be achieved with only a few soil parameters: a standard penetration test and a cone penetration test.