Tunnelling and swelling in triassic sulphate-bearing rocks: part II: case studies from Jura Mountains
Part II of this series of paper deals with the phenomenology of swelling in tunnels from Jura Mountains (Switzerland) excavated through the Gipskeuper and the Anhydritgruppe. The main features of expansions observed in the presented case studies are summarized and the performance of resisting and yi...
| Autores: | , , , |
|---|---|
| Tipo de documento: | artigo |
| Data de publicação: | 2009 |
| País: | España |
| Recursos: | Universitat Politècnica de Catalunya (UPC) |
| Repositório: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglês |
| OAI Identifier: | oai:upcommons.upc.edu:2117/9595 |
| Acesso em linha: | https://hdl.handle.net/2117/9595 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Tunnels--Switzerland ura Mountains (France and Switzerland) degradation drainage ventilation sulphate-bearing rocks Gipskeuper Anhydritgruppe swelling tunnel Jura Mountain Túnels -- Geotècnia Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Túnels i excavacions |
| Resumo: | Part II of this series of paper deals with the phenomenology of swelling in tunnels from Jura Mountains (Switzerland) excavated through the Gipskeuper and the Anhydritgruppe. The main features of expansions observed in the presented case studies are summarized and the performance of resisting and yielding support systems is compared. Evidences presented in this series of papers indicate that the transformation of anhydrite into gypsum is not a reasonable explanation for long-term expansive phenomena occurring in sulphate-bearing rocks. It is suggested that these phenomena are strongly related to rock degradation due to both tunneling induced drainage towards the bottom of excavations and tunneling induced ventilation. |
|---|