Remember Me
Or use your Academic/Social account:


Or use your Academic/Social account:


You have just completed your registration at OpenAire.

Before you can login to the site, you will need to activate your account. An e-mail will be sent to you with the proper instructions.


Please note that this site is currently undergoing Beta testing.
Any new content you create is not guaranteed to be present to the final version of the site upon release.

Thank you for your patience,
OpenAire Dev Team.

Close This Message


Verify Password:
Verify E-mail:
*All Fields Are Required.
Please Verify You Are Human:
fbtwitterlinkedinvimeoflicker grey 14rssslideshare1
Jones, Benoît; Thomas, A. H. (Alun H.); Hsu, Y. S. (Yu Sheng); Hilar, M. (2008)
Publisher: ICE Publishing Ltd.
Languages: English
Types: Article
Subjects: TA
The front-shunt tunnel was the first tunnel of the Terminal 5 project at Heathrow to be constructed, and was the first section of sprayed-concrete-lined (SCL) tunnel to be constructed using the method known as LaserShell. This innovation represented a significant deviation from the methods previously used in SCL construction. Therefore it was subjected to a careful examination before and during construction using sophisticated 3D numerical modelling and monitoring during construction. The paper presents typical results from surface settlement levelling, inclinometers and extensometers, pressure cells and tunnel lining displacement measurements, and comments on the performance of the methods and instruments used. The paper then presents the methodology and typical results of the numerical modelling, and shows that the predictions of displacements and stresses compared well with the field measurements. In terms of the control of ground deformations and structural safety the tunnel performed well.
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

    • 1. WILLIAMS I., NEUMANN C., JA¨ GER J. and FALKNER L. Innovativer Spritzbeton-Tunnelbau fu¨ r den neuen Flughafenterminal T5 in London (Innovative shotcrete tunnelling for London Heathrow's new Terminal 5). Proceedings O¨ sterreichischer Tunneltag 2004, Salzburg, 2004, 41-61.
    • 2. HILAR M., THOMAS A. H. and FALKNER L. The latest innovation in sprayed concrete lining: the LaserShell method. Tunel (Magazine of the Czech Tunnelling Committee and the Slovak Tunnelling Committee ITA/ AITES), 2005, 4, 11-19.
    • 3. PECK R. B. Deep excavations and tunnelling in soft ground. Proceedings of the 7th International Conference on Soil Mechanics and Foundation Engineering, Mexico, 1969, State-of-the-art report, 225-290.
    • 4. VAN DER BERG J. P., CLAYTON C. R. I. and POWELL D. B. Displacements ahead of an advancing NATM tunnel in the London Clay. Ge´otechnique, 2003, 53, No. 9, 767-784.
    • 5. NYREN R. J., STANDING J. R. and BURLAND J. B. Surface displacements at St James's Park greenfield reference site above twin tunnels through the London Clay. In Building Response to Tunnelling: Case Studies from Construction of the Jubilee Line Extension, London. CIRIA, London, 2001, Vol. 1, pp. 387-400.
    • 6. DEANE A. P. and BASSETT R. H. The Heathrow Express trial tunnel. Proceedings of the Institution of Civil Engineers, Geotechnical Engineering, 1995, 113, No. 3, 144-156.
    • 7. BOCK H. Geotechnical instrumentation of tunnels. In Summerschool on Rational Tunnelling (KOLYMBAS D. (ed.)). Logos Verlag, Berlin, 2003, pp. 187-224.
    • 8. CLAYTON C. R. I., HOPE V. S., HEYMANN G., VAN DER BERG J. P. and BICA A. V. D. Instrumentation for monitoring sprayed concrete lined soft ground tunnels. Proceedings of the Institution of Civil Engineers, Geotechnical Engineering, 2000, 143, No. 3, 119-130.
    • 9. JONES B. D. Measurements of ground pressure on sprayed concrete tunnel linings using radial pressure cells. Proceedings of Underground Construction 2005, London, 2005 (CD-ROM).
    • 10. CHANG J., SCOTT J. M. and POUND C. Numerical study of Heathrow cofferdam. Proceedings of the 2nd International Symposium FLAC and Numerical Modeling in Geomechanics, Lyon, 2001, 163-169.
    • 11. SCOTT J. M., POUND C. and SHANGHAVI H. B. Heathrow Airside Road Tunnel: wall design and observed performance. Proceedings of the International Conference on Underground Construction, London, 2003, pp. 281-292.
    • 12. JARDINE R. J., POTTS D. M., FOURIE A. B. and BURLAND J. B. Studies of the influence of non-linear stress-strain characteristics in soil-structure interaction. Ge´otechnique, 1986, 36, No. 3, 377-396.
    • 13. HIGHT D. W., GASPARRE A., NISHIMURA S., MINH N. A., JARDINE R. J. and COOP M. R. Characteristics of the London Clay from the Terminal 5 site at Heathrow Airport. Ge´otechnique, 2007, 57, No. 1, 3-18.
    • 14. BRITISH STANDARDS INSTITUTION. Structural Use of Concrete. Code of Practice for Special Circumstances. BSI, London, 1985, BS 8110 Part 2.
    • 15. NEGRO A. and DE QUEIROZ P. I. B. Prediction and performance: a review of numerical analyses for tunnels. Proceedings of the International Symposium Geotechnical Aspects of Underground Construction in Soft Ground, Tokyo, 2000, pp. 409-418.
    • 16. SHIRLAW J. N. and WEN D. Checking and reviewing the output from numerical analysis. Proceedings Underground Singapore 2005, Singapore, 2005, 241-249.
    • 17. MAIR R. J. and TAYLOR R. N. Theme lecture: Bored tunnelling in the urban environment. Proceedings of the 14th International Conference on Soil Mechanics and Geotechnical Engineering, Hamburg, 1997, 4, 2353-2385.
    • 18. POWELL D. B., SIGL O. and BEVERIDGE J. P. Heathrow Express: design and performance of platform tunnels at Terminal 4. Proceedings of Tunnelling '97, London, 1997, 565-593.
    • 19. KIMMANCE J. P. and ALLEN R.. The NATM and compensation grouting trial at Redcross Way. Proceedings of the International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, London, 1996, pp. 385-390.
  • No related research data.
  • No similar publications.

Share - Bookmark

Cite this article