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Tunnelling in Urban Environments: Protecting Sensitive Buildings

Alonso, Eduardo E.

Abstract The paper stresses the difficulty of estimating the potential damage induced by tunneling on sensitive buildings. This situation justifies the adoption of protective measures. Among a wide range of solutions two comforting techniques are described: Compensation grouting and protection walls. In the first case attention is given to the response of pile foundations to the tunnel volume loss. A semi-analytic solution, which includes a few fundamental solutions, is outlined. It is an alternative to expensive numerical analysis which may prove to be accurate enough in practice. The tunnel-protection wall interaction was also analyzed by a similar simplified solution. Main dimensionless parameters controlling the wall performance are identified and their relevance is discussed.

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Tunnelling in Urban Environments: Protecting Sensitive Buildings

Alonso, Eduardo E.

Abstract The paper stresses the difficulty of estimating the potential damage induced by tunneling on sensitive buildings. This situation justifies the adoption of protective measures. Among a wide range of solutions two comforting techniques are described: Compensation grouting and protection walls. In the first case attention is given to the response of pile foundations to the tunnel volume loss. A semi-analytic solution, which includes a few fundamental solutions, is outlined. It is an alternative to expensive numerical analysis which may prove to be accurate enough in practice. The tunnel-protection wall interaction was also analyzed by a similar simplified solution. Main dimensionless parameters controlling the wall performance are identified and their relevance is discussed.

Tunnelling in Urban Environments: Protecting Sensitive Buildings

Alonso, Eduardo E.

Abstract The paper stresses the difficulty of estimating the potential damage induced by tunneling on sensitive buildings. This situation justifies the adoption of protective measures. Among a wide range of solutions two comforting techniques are described: Compensation grouting and protection walls. In the first case attention is given to the response of pile foundations to the tunnel volume loss. A semi-analytic solution, which includes a few fundamental solutions, is outlined. It is an alternative to expensive numerical analysis which may prove to be accurate enough in practice. The tunnel-protection wall interaction was also analyzed by a similar simplified solution. Main dimensionless parameters controlling the wall performance are identified and their relevance is discussed.

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Title:

Tunnelling in Urban Environments: Protecting Sensitive Buildings

Contributors:

Alonso, Eduardo E. (author)

Published in:

Proceedings of China-Europe Conference on Geotechnical Engineering ; 1117-1127

Springer Series in Geomechanics and Geoengineering

Publication date:

2018-01-01

Size:

11 pages

ISBN:

978-3-319-97114-8 , 978-3-319-97115-5

ISSN:

1866-8755 , 1866-8763

DOI:

https://doi.org/10.1007/978-3-319-97115-5_51

Type of media:

Article/Chapter (Book)

Type of material:

Electronic Resource

Language:

English

Keywords:

Analytical solutions , Compensation grouting , Damage , Protection walls , Tunneling , Volume loss Engineering , Geoengineering, Foundations, Hydraulics , Geotechnical Engineering & Applied Earth Sciences

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