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Geomechanical characterization of a tectonized shaley complex in the hilly area around Florence

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Abstract

In a typical unit of structurally complex, mainly shaley and highly tectonized terrain, two different levels of shaley clayey materials in the same site were identified and analyzed. These lithotypes were characterized in terms of their behaviour as a result of swelling phenomena connected with the mineralogy, stress history and variation in water content. The aim of the study was to assess, in particular, the problems caused by cutting and altering the slope composed of these heterogeneous terrains.

Résumé

Dans une formation d’argilites de structure complexe et fortement tectonisée, deux niveaux différents de ces matériaux argileux ont été identifiés et analysés sur un site particulier. L’aptitude au gonflement de ces lithotypes a été caractérisée et mise en relation avec leur composition minéralogique, leur histoire tectonique et les variations de teneurs en eau subies. L’un des buts de l’étude a été d’évaluer les problèmes géotechniques qui peuvent résulter de la réalisation d’excavations et des processus d’altération se développant sur des pentes réalisées dans ces matériaux hétérogènes.

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Authors and Affiliations

  1. DIRES-LAM Dipartimento di Restauro e Conservazione dei Beni Architettonici, Laboratorio Materiali e Geologia Applicata per la Conservazione dei Beni Architettonici ed Ambientali, Via Micheli 8, 50121 , Firenze, Italy

    C. A. Garzonio

  2. Geostud Laboratorio Meccanica dei Terreni, Via della Mattonaia 15, 50121 , Firenze, Italy

    A. Sfalanga

Authors
  1. C. A. Garzonio
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  2. A. Sfalanga
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Correspondence to C. A. Garzonio.

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Garzonio, C.A., Sfalanga, A. Geomechanical characterization of a tectonized shaley complex in the hilly area around Florence. Bull Eng Geol Environ 62, 289–297 (2003). https://doi.org/10.1007/s10064-003-0194-5

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  • DOI: https://doi.org/10.1007/s10064-003-0194-5

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