Imperial College London
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DrStavroulaKontoe

Faculty of Engineering, Department of Civil and Environmental Engineering

Visiting Reader
 
 
 
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Contact

 

+44 (0)20 7594 5996stavroula.kontoe Website

 
 
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Location

 

535Skempton BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@inproceedings{Buckley:2019:10.32075/17ECSMGE-2019-0161,
author = {Buckley, R and Jardine, R and Kontoe, S and Schroeder, F and Barbosa, P},
doi = {10.32075/17ECSMGE-2019-0161},
publisher = {Icelandic Geotechnical Society},
title = {The design of axially loaded driven piles in chalk},
url = {http://dx.doi.org/10.32075/17ECSMGE-2019-0161},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - CPAPER
AB  - The behaviour of driven piles in chalk is poorly understood; their installation resistance, set-up characteristics and response to cyclic and static loading all warrant further investigation. Current axial capacity design methods have poor reliability, particularly in low-medium density chalk. This paper gives an overviewof  research  which  combined  systematic  investigations  at  an  onshore  chalk  site  in  Kent,  UK,  with  careful analysis of large scale offshore tests. The onshore studies involved reduced-scale open-ended driven piles and heavily instrumented closed-ended Imperial College Piles. The offshore analyses addressed static and dynamic pile tests conducted on full scale open-ended steel tubular piles driven in glacial till and low-to-medium density chalk. The understanding drawn from both streams of research form the basis for a new Chalk ICP-18 effective stress-based design approach, which centres on the key physical phenomena identified: (i) the close correlation between pile resistances and local variations in CPT cone resistance (ii) the marked effect of the relativedepth, h/R,  of  the  pile  tip  below  any  given  chalk  horizon  (iii)  the  effective  stress  shaft  interface  shear  failure characteristics and (iv)  very significant capacity gains over time. The  new  method offersbetter predictions of field behaviourwith time than the current industry method.
AU  - Buckley,R
AU  - Jardine,R
AU  - Kontoe,S
AU  - Schroeder,F
AU  - Barbosa,P
DO  - 10.32075/17ECSMGE-2019-0161
PB  - Icelandic Geotechnical Society
PY  - 2019///
TI  - The design of axially loaded driven piles in chalk
UR  - http://dx.doi.org/10.32075/17ECSMGE-2019-0161
UR  - https://www.ecsmge-2019.com/uploads/2/1/7/9/21790806/0161-ecsmge-2019_buckley.pdf
UR  - http://hdl.handle.net/10044/1/74976
ER  -
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