Natural Hazards

, Volume 59, Issue 3, pp 1377–1396 | Cite as

Displacement patterns of a landslide affected by human activities: insights from ground-based InSAR monitoring

  • Francesca Bozzano
  • Ivan Cipriani
  • Paolo Mazzanti
  • Alberto Prestininzi
Original Paper

Abstract

Landslides interacting with large infrastructures represent a major problem for the economy, society as a whole, and the safety of workers. Continuous monitoring for 23 months using an integrated platform with a ground-based SAR interferometer (GB-InSAR), a weather station, and an automatic camera gave us the opportunity to analyze the response of an unstable slope to the different phases of work. The deformational behavior of both the natural slope and the man-made structures was recorded and interpreted in relation to the working stages and the rainfall conditions during the whole monitoring period. A typical pattern of displacement was identified for shallow landslides, debris produced by the excavation and gabions, metallic walls, and anchored bulkheads. Furthermore, insights into the dynamics and behavior of the slope and the man-made structures that interact with the landslide were obtained. Extreme rainfall is the main trigger of shallow landslides and gabion deformations, while anchored bulkheads are less influenced by rainfalls. Movement of debris that is produced by excavations and temporary metallic barrier deformation are closely related to each other. The herein proposed monitoring platform is very efficient in monitoring unstable slopes that are affected by human activities. Moreover, the recorded patterns of displacement in the slope and the man-made structures can be used as reference data for similar studies and engineering designs.

Keywords

GB-InSAR Interferometry Landslide Monitoring Displacement Infrastructure 

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Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  • Francesca Bozzano
    • 1
    • 2
    • 3
  • Ivan Cipriani
    • 2
  • Paolo Mazzanti
    • 1
    • 2
    • 3
  • Alberto Prestininzi
    • 1
    • 2
  1. 1.CERIResearch Centre on Prevention, Prediction and Control of Geological RisksValmontoneItaly
  2. 2.Dipartimento di Scienze della Terra“Sapienza” Università di RomaRomeItaly
  3. 3.NHAZCA S.r.l.Spin-Off “Sapienza” Università di RomaRomeItaly

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