Rock Mechanics and Rock Engineering

, Volume 52, Issue 11, pp 4421–4437 | Cite as

Strength Parameters of Debris Using a Large Shear Box Apparatus: Application to a Case History

  • S. Vannucci
  • G. D’Amato Avanzi
  • Y. Galanti
  • R. Giannecchini
  • D. Lo Presti
  • P. P. CapilleriEmail author
Original Paper


The paper shows the back-analysis results of a shallow landslide occurred on 10 November 2014. A very intense rainfall (that occurred after a prolonged rainy period) caused a number of landslides in the area of Leivi (Liguria, Northern Italy). The considered slope consists of shallow debris overlying the bedrock (Argille a Palombini). The analyses were carried out using the limit equilibrium method. Debris characterization was carried out by means of direct shear tests. For such a purpose, direct shear tests on large specimens were carried out using a large shear box (300 × 300 × 100 mm). The specimens were reconstituted in the laboratory using the soil collected just above the sliding surface. The direct shear tests were performed to determine the effective strength parameters according to different density and water content. Direct shear test results showed that the friction angle values decrease and the cohesion increases, as water content increases. Furthermore, previous geological and geomorphological studies of the area affected by landslides were used to define the study model.


Friction angle Shallow landslide Large shear box Effective strength parameters Partial saturation 



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Copyright information

© Springer-Verlag GmbH Austria, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Civil and Industrial EngineeringUniversity of Pisa, Largo Lucio LazzarinoPisaItaly
  2. 2.Earth Sciences DepartmentUniversity of PisaPisaItaly

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