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Crystal growth and soil expansion: the role of interfacial pressure and pore structure

Autor
Ramon, A.; Alonso, E.
Tipus d'activitat
Presentació treball a congrés
Nom de l'edició
6th International Conference on Unsaturated Soils
Any de l'edició
2014
Data de presentació
2014-07
Llibre d'actes
Unsaturated soils: research & applications: 6th International Conference on Unsaturated Soils (UNSAT2014): Sydney, Australia: july 2-4, 2014: proceedings
Pàgina inicial
875
Pàgina final
881
Editor
CRC Press
DOI
https://doi.org/10.1201/b17034-126 Obrir en finestra nova
Repositori
http://hdl.handle.net/2117/79438 Obrir en finestra nova
URL
http://www.crcnetbase.com/doi/abs/10.1201/b17034-126 Obrir en finestra nova
Resum
The paper summarizes first a set of field observations in connection with the severe heave experienced by Lilla tunnel excavated in a Tertiary anhydritic claystone. Heave and swelling pressures against the tunnel rigid lining were a consequence of gypsum crystal growth on discontinuities. This process requires water because gypsum crystals precipitate from supersaturated solutions of calcium sulfate. The paper concentrates on the precipitation of crystal in pores of varying geometry with the pur...
Citació
Ramon, A., Alonso, E. Crystal growth and soil expansion: the role of interfacial pressure and pore structure. A: International Conference on Unsaturated Soils. "Unsaturated Soils: Research & Applications". Sydney: CRC Press, 2014, p. 875-881.
Paraules clau
Engineering controlled terms: Crystal growth, Geometry, Gypsum, Soil mechanics
Grup de recerca
MSR - Mecànica del Sòls i de les Roques

Participants