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Erschienen in:
2018 | OriginalPaper | Buchkapitel
Tunnelling in Urban Environments: Protecting Sensitive Buildings
verfasst von : Eduardo E. Alonso
Erschienen in: Proceedings of China-Europe Conference on Geotechnical Engineering
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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.