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Effect of soil saturation changes on pressure on tunnel linings

Author
de Santos, C.; Ledesma, A.; Lloret, A.
Type of activity
Presentation of work at congresses
Name of edition
17th International Conference on Soil Mechanics and Geotechnical Engineering
Date of publication
2009
Presentation's date
2009-10
Book of congress proceedings
Proceedings of the 17th International conference on soil mechanics and geotechnical engineering : the academia and practice of geotechnical engineering
First page
1766
Last page
1769
Publisher
IOS Press
Repository
http://hdl.handle.net/2117/15956 Open in new window
Abstract
It is well known that changes in soil degree of saturation have an important influence on mechanical soil properties. Decreasing suction in soil leads to an increase of specific weight and to a decrease of stiffness and strength. These mechanical changes may have an important influence on underground works, particularly on subsurface tunnels. In fact, decreasing soil cohesion due to saturation reduces arching effects above tunnels. Recent developments in unsaturated soil behaviour include numeri...
Citation
de Santos, C.; Ledesma, A.; Lloret, A. Effect of soil saturation changes on pressure on tunnel linings. A: International Conference on Soil Mechanics and Geotechnical Engineering. "Proceedings of the 17th International conference on soil mechanics and geotechnical engineering : the academia and practice of geotechnical engineering". Alexandria: IOS Press, 2009, p. 1766-1769.
Keywords
Unsaturated soil, arching, lining, suction, tunnel
Group of research
MSR - Soil and Rock Mechanics

Participants