A database to ensure reliability of bored pile design in Egypt

Abstract

A new electronic database has been developed to house reliable results for more than 318 load tests of large-diameter bored piles in Egypt, including comprehensive records of soil profile, in situ tests and pile characteristics. Using information from the database, the load and resistance factor design reliability-based calibration approach was applied to established pile design methods and another two local methods. Resistance factors were developed using the Monte Carlo simulation, covering several nominal capacity determination criteria from the pile load–displacement response. The analysis was then extended to assess the reliability of the load test results, which represent the key construction control measure for bored piles. This was achieved by connecting the number of load tests conducted per-site basis with an indicative level of soil variation.

The DINGO database of axial pile load tests for the UK: settlement prediction in fine-grained soils

“…The significance of such online tools has been recognised by various investigators from different countries who have compiled databases with pile data. These include databases from North America (Paikowsky et al 2004), Western Europe (Galbraith, Farrell, andByrne 2014), North Africa (AbdelSalam, Baligh, andEl-Naggar 2015) and South-East Asia (Ong et al 2021). Global databases have also been recently compiled for tests in sands by a Chinese-UK-Australian consortium (Yang et al 2015(Yang et al , 2016 and the Deep Foundation Institute and UC-Irvine (Find A Pile.com, Lemnitzer and Favaretti 2013) for lateral-load tests.…”

Editorial

“…Piling is also the subject of the paper by AbdelSalam et al (2015), but this time large diameter bored piling in Egypt. The authors have collated a database of pile test results, over 300 in total from 19 different localities, and have applied statistical methods to determine appropriate resistance factors, for use in load and resistance factor design in the same manner that Paikovsky (2004) did for the National Transportation Research Board in the USA.…”