CUED Publications database

The influence of tunnelling and deep excavation on piled foundations

Mair, RJ and Williamson, MG (2014) The influence of tunnelling and deep excavation on piled foundations. Geotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 8th Int. Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, TC204 ISSMGE - IS-SEOUL 2014. pp. 21-30.

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Abstract

The paper addresses the effects of tunnelling and deep excavations on piled foundations. It focuses particularly on cases where tunnels are constructed beneath pile toes; it also discusses deep excavations adjacent to buildings for which the depth of excavation extends significantly below the piles. Case histories are reviewed and some new ones are presented. For friction piles the settlement was generally observed to be similar to the settlement of the ground surface at the position of the pile head. Some results of recent centrifuge modelling of tunnelling beneath bored piles in stiff clays are presented; these elucidate the detailed behaviour of piles subject to tunnel volume loss, particularly in relation to settlement, load distribution and shaft friction. Comments are made on numerical modelling, analytical methods and empirical methods used in practice. Field observations of the effects of deep excavations on piled buildings are also presented. © 2014 Korean Geotechnical Society.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div D > Geotechnical and Environmental
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:05
Last Modified: 01 Sep 2020 05:13
DOI: 10.1201/b17240-6