Imperial College London
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Emeritus ProfessorJohnBurland

Faculty of Engineering, Department of Civil and Environmental Engineering

Senior Research Investigator
 
 
 
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Contact

 

j.burland

 
 
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Location

 

416Skempton BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@inproceedings{Standing:2015,
author = {Standing, JR and Potts, DM and Vollum, R and Burland, JB and Yu, JBY and Wan, MSP and Avgerinos, V},
pages = {515--520},
title = {Research into the effect of tunnelling on existing tunnels},
year = {2015}
}
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RIS format (EndNote, RefMan)

TY  - CPAPER
AB  - Increasing demands for providing transport systems in the urban environment has led to many tunnelling projects being undertaken worldwide. Many of the cities where new tunnels are to be constructed already have a comprehensive underground network of tunnels for both transport and services. New tunnels often have to be aligned beneath these and frequently there are concerns that their construction may cause unacceptable deformations of Ibe existing tunnels, potentially hindering their serviceability and in the extreme threatening their stability. The Crossrail project, currently underway in London, involves tunnelling beneath numerous existing tunnels. It therefore has provided a great opportunity to study this complex boundary value problem. This paper describes the philosophy behind a comprehensive research project, run in conjunction with the Crossrail construction, which has an emphasis on the response of older tunnels lined with grey cast iron segments. There is a focus on how the Central Line tunnels responded to new twin tunnel construction beneath them. The five main strands of the research arc: field monitoring within and around the existing tunnels; numerical analyses of the field conditions; structural testing of a half-scale grey cast iron segmental ring; numerical analyses of the ring and two-segment tests performed; advanced laboratory testing of London Clay samples taken during installation of field instrumentation. These activities link into each other. Some preliminary results are presented and the main finding to date arc summarised.
AU  - Standing,JR
AU  - Potts,DM
AU  - Vollum,R
AU  - Burland,JB
AU  - Yu,JBY
AU  - Wan,MSP
AU  - Avgerinos,V
EP  - 520
PY  - 2015///
SP  - 515
TI  - Research into the effect of tunnelling on existing tunnels
ER  -
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