A review of expansive phenomena in Wagenburg North Tunnel

All of RECERCAT

To access the full text documents, please follow this link: http://hdl.handle.net/2117/9951

Title:	A review of expansive phenomena in Wagenburg North Tunnel
Author:	Berdugo de Moya, Iván Rafael; Alonso Pérez de Agreda, Eduardo; Romero Morales, Enrique Edgar; Gens Solé, Antonio; Albis, María
Other authors:	Universitat Politècnica de Catalunya. Departament d'Enginyeria del Terreny, Cartogràfica i Geofísica; Universitat Politècnica de Catalunya. MSR - Mecànica del Sòls i de les Roques
Abstract:	The paper deals on tunnelling and swelling in anhydritic-gypsiferous claystones. The geology of the Gipskeuper in Baden-Württemberg (Germany) and the phenomenology of expansions in Wagenburg North tunnel are described. Consistent swelling triggering events, mechanisms and exhaustion causes were identified using a thermo-hydro-chemo-mechanical theoretical analysis. It is suggested that long-term swelling in tunnels excavated through anhydritic-gypsiferous claystones is a result of solvent-way gypsum crystal growth due to ventilation induced groundwater evaporation and rock drying; an opposite concept to the usual consequences of drying in argillaceous materials, which causes shrinkage strains.
Abstract:	Peer Reviewed
Subject(s):	-Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de sòls -Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Túnels i excavacions -Engineering geology -Enginyeria geològica -Túnels
Rights:
Document type:	Article - Published version Article
Share: