Investigation of Influence Zones Induced by Shallow Tunnelling in Soft Soils

M.N. Vu, Wout Broere, Johan Bosch

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

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Abstract

The extent of the influence zone affected by shallow tunnelling depends on the value of volume loss which normally represents the amount of over-excavation and stress changes induced in the soil. This paper combines upper and lower estimates of volume loss for different soft soils and cover-to-diameter ratios in order to identify the extent of zones around the tunnel influenced by tunnelling. These zones are combined with risk categories of damage of existing buildings in order to determine whether applying mitigating methods or taking additional control measures during tunnelling would be needed for a safe and damagefree
tunnel construction. The effects of soil parameters on the influence zones are also investigated to identify their impact and quantity of the requirements for mitigating measures.
Original languageEnglish
Title of host publicationProceedings of the 9th International Symposium on Geotechnical Aspects of Underground Construction in Soft Grounds
Number of pages6
Publication statusPublished - 2017
Event9th International Symposium on Geothecnical Aspects of Underground Construction in Soft Ground - Centro de Convenções Rebouças, Sao Paulo, Brazil
Duration: 4 Apr 20175 Apr 2017
Conference number: 9
http://www.is-saopaulo.com/

Conference

Conference9th International Symposium on Geothecnical Aspects of Underground Construction in Soft Ground
Abbreviated titleIS – Sao Paulo 2017
CountryBrazil
CitySao Paulo
Period4/04/175/04/17
Internet address

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    Vu, M. N., Broere, W., & Bosch, J. (2017). Investigation of Influence Zones Induced by Shallow Tunnelling in Soft Soils. In Proceedings of the 9th International Symposium on Geotechnical Aspects of Underground Construction in Soft Grounds