Hydrochemical approach of mechanical degradation of the Séchilienne unstable slope - Archive ouverte HAL
Chapitre D'ouvrage Année : 2015

Hydrochemical approach of mechanical degradation of the Séchilienne unstable slope

Résumé

Water chemistry is a very fine signal which allows fine location in time and space of the arrival of infiltration water inducing mechanical instability pulses of the landslide. This tool is designed to understand the complex relationship between chemical weathering, hydromechanical changes and weakening/motion of the unstable rock slope. For this purpose, a hydrogeochemical groundwater monitoring has been established since 2010 on the site of Séchilienne (France). Electrical conductivity is representative of the chemical signal generated by the degradation of the massif. The continuous measurement of this parameter is relevant to the site of Séchilienne and can replace chemical monitoring. The benefit of acquiring this data is threefold: real-time measurements, with a short time step, and inexpensive implementation work, enabling to use it as a tool for risk management.
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Dates et versions

hal-01114438 , version 1 (09-02-2015)

Identifiants

Citer

Catherine Bertrand, Aurélien Vallet, Jacques Mudry. Hydrochemical approach of mechanical degradation of the Séchilienne unstable slope. Giorgio Lollino; Daniele Giordan; Giovanni Battista Crosta; Jordi Corominas; Rafig Azzam; Janusz Wasowski; Nicola Sciarra. Engineering Geology for Society and Territory, 2, Springer International Publishing Switzerland, pp.2137-2141, 2015, Landslide Processes, 978-3-319-09056-6. ⟨10.1007/978-3-319-09057-3_383⟩. ⟨hal-01114438⟩
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