## Abstract

A wide range of correlations have been proposed between cone penetration test end resistance, q_{c}, and the ultimate end bearing pressure developed by bored piles. The q_{c} value is typically related to the pile end bearing resistance at a normalised pile displacement equal to 10% of the pile diameter, q_{b0·1}, through a correlation factor, α. While it is generally accepted that constant α factors can be applied for the design of displacement piles, a combination of field tests and finite-element analyses of bored piles in sand has resulted in a myriad of design approaches, some of which suggest that α varies with pile geometry, stress level and sand density. In this paper the results of finite-element analyses are presented which suggest that a constant α factor can be adopted for the design of deep foundations in sand.

Original language | English |
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Pages (from-to) | 549-560 |

Number of pages | 12 |

Journal | Proceedings of the Institution of Civil Engineers - Geotechnical Engineering |

Volume | 166 |

Issue number | 6 |

DOIs | |

Publication status | Published - Dec 2013 |

Externally published | Yes |

## Keywords

- Foundations
- Geotechnical engineering
- Piles & piping