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Monitoring Rock Wall Temperatures and Microseismic Activity for Slope Stability Investigation at J.A. Carrel Hut, Matterhorn

  • Velio CovielloEmail author
  • Marta Chiarle
  • Massimo Arattano
  • Paolo Pogliotti
  • Umberto Morra di Cella
Conference paper

Abstract

Recent climate changes are increasing the frequency of rock-slope instabilities in the Alpine region. The formation of cracks leading to rockfalls causes a release of energy propagating in form of elastic waves. These latter can be detected by a suitable transducer array together with the vibrations generated by the impact of rockfalls. Geophones are among the most effective monitoring devices to investigate both these phenomena. A monitoring system composed by geophones and thermometers was installed at the J.A. Carrel hut (3829 m a.s.l., Matterhorn, NW Alps) in the framework of the Interreg Alcotra projects PERMAdataROC and MASSA by CNR IRPI and ARPA with the financial and logistic support of the Valle d’Aosta Region. The correlation between temperature trends and microseismic events is presented: cold periods characterized by a rapid temperature decrease present higher concentration of microseismic activity. However, not every drop in temperature is associated to microseismic activity, and the identification of the processes generating microseismic events in occasion of rapid temperature decrease is still uncertain. The objective of the ongoing research activity is to analyze in deep the statistical correlation between the number of microseismic records and the temperatures of air and rock in order to investigate the existence of recurrent patterns in the detected signals.

Keywords

Alpine permafrost Microseismic monitoring Rock-slope deformation Temperature monitoring 

Notes

Acknowledgments

The authors wish to thank the Regione Autonoma Valle d’Aosta (Dipartimento Difesa del Suolo e Risorse Idriche—Servizio Geologico), for the logistic and financial support; Massimo Signori and Delfino Bani (Solgeo S.r.l.) who assembled and installed the monitoring network; Lucio Trucco (Società delle Guide del Cervino) for the assistance during all the field work phases; Gianni Mortara, senior researcher at CNR IRPI, for his comments and suggestions.

References

  1. Amitrano D, Grasso JR, Senfaute G (2005) Seismic precursory patterns before a cliff collapse and critical point phenomena. Geophys Res Lett 32:L08314Google Scholar
  2. Amitrano D, Arattano M, Chiarle M, Mortara G, Occhiena C, Pirulli M, Scavia C (2010) Microseismic activity analysis for the study of the rupture mechanisms in unstable rock masses. Nat Hazards Earth Syst Sci 10:831–841CrossRefGoogle Scholar
  3. Arattano M, Franzi L (2003) On the evaluation of debris flows dynamics by means of mathematical models. Nat Hazards Earth Syst Sci 3(6):539–544CrossRefGoogle Scholar
  4. Arattano M, Franzi L (2004) Analysis of different water-sediment flow processes in a mountain torrent. Nat Hazards Earth Syst Sci 4:783–791CrossRefGoogle Scholar
  5. Arattano M, Franzi L, Marchi L (2006) Influence of rheology on debris flow simulation. Nat Hazards Earth Syst Sci 6:519–528CrossRefGoogle Scholar
  6. Arattano M, Marchi L, Cavalli M (2012) Analysis of debris flow recordings in an instrumented basin: confirmations and new findings. Nat Hazards Earth Syst Sci 12:679–686CrossRefGoogle Scholar
  7. Arattano M, Cavalli M, Comiti F, Coviello V, Macconi P, Marchi L (2014) Standardization of methods and procedures for debris flow seismic monitoring. In: Proceedings XII IAEG International Congress, 2014 (in press)Google Scholar
  8. Chiarle M, Coviello V, Arattano M, Silvestri P, Nigrelli G (2014) High elevation rock falls and their climatic control: a case study in the Conca di Cervinia (NW Italian Alps). In: Lollino G et al (eds), Engineering geology for society and territory, Proceedings IAEG XII International Congress, vol 1Google Scholar
  9. Comiti F, Marchi L, Macconi P, Arattano M, Bertoldi G, Borga M, Brardinoni F, Cavalli M, D’Agostino V, Penna D, Theule J (2014) A new monitoring station for debris flows in the European Alps: first observations in the Gadria basin. Nat Hazards 1–24 Google Scholar
  10. Evans SG, Clague JJ (1994) Recent climatic change and catastrophic geomorphic processes in mountain environments. Geomorphology 10:107–112CrossRefGoogle Scholar
  11. Girard L, Gruber S, Weber S, Beutel J (2013) Environmental controls of frost cracking revealed through in situ acoustic emission measurements in steep bedrock. Geophysical Research Letters 40(9):1748--1753CrossRefGoogle Scholar
  12. Gruber S, Haeberli W (2007) Permafrost in steep bedrock slopes and its temperature-related destabilization following climate change. J Geophys Res 112:F02S18Google Scholar
  13. Gruber S, Hoelzle M, Haeberli W (2004) Permafrost thaw and destabilization of Alpine rock walls in the hot summer of 2003. Geophys Res Lett 31:L13504CrossRefGoogle Scholar
  14. Gruner U (2008) Climatic and meteorological influences on rockfall and rockslides. In: Proceedings 11th Interpraevent Congress 2008, vol 2, pp 147–158Google Scholar
  15. Hardy HR (2003) Acoustic emission/microseismic activity—principles, techniques and geotechnical applications. A.A. Balkema, LisseCrossRefGoogle Scholar
  16. Hasler A, Gruber S, Beutel J (2012) Kinematics of steep bedrock permafrost. J Geophys Res 117:F01016Google Scholar
  17. Levy C, Jongmans D, Baillet L (2011) Analysis of seismic signals recorded on a prone-to-fall rock column (Vercor Massif, French Alps). Geophys J Int 186:296–310CrossRefGoogle Scholar
  18. Lin ML, Wang KL, Huang JJ (2005) Debris flow run off simulation and verification—case study of Chen-You-Lan watershed, Taiwan. Nat Hazards Earth Syst Sci 5(3):439–445CrossRefGoogle Scholar
  19. Lockner DA (1993) The role of acoustic emission in the study of rock fracture. Int J Rock Mech Min 30(7):883–899CrossRefGoogle Scholar
  20. Matsuoka N, Sakai H (1999) Rockfall activity from an alpine cliff during thawing periods. Geomorphology 28(3–4):309–328CrossRefGoogle Scholar
  21. Occhiena C, Coviello V, Arattano M, Chiarle M, Morra di Cella U, Pirulli M, Pogliotti P, Scavia C (2012) Analysis of microseismic signals and temperature recordings for rock slope stability investigations in high mountain areas. Nat Hazards Earth Syst Sci 12:2283–2298CrossRefGoogle Scholar
  22. Pogliotti P, Cremonese E, Morra di Cella U, Gruber S, Giardino M (2008) Thermal diffusivity variability in alpine permafrost rock walls. In: Proceedings of the 9th International Conference on Permafrost, vol 2, pp 1427–1432Google Scholar
  23. Ravanel L, Deline P (2011) Climate influence on rockfalls in high-Alpine steep rockwalls: the north side of the Aiguilles de Chamonix (Mont Blanc massif) since the end of the ‘Little Ice Age’. The Holocene 21(2):357–365CrossRefGoogle Scholar
  24. Senfaute G, Duperret A, Lawrence JA (2009) Micro-seismic precursory cracks prior to rock-fall on coastal chalk cliffs: a case study at Mesnil-Val, Normandie, NW France. Nat Hazards Earth Syst Sci 9:1625–1641CrossRefGoogle Scholar

Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  • Velio Coviello
    • 1
    Email author
  • Marta Chiarle
    • 1
  • Massimo Arattano
    • 1
  • Paolo Pogliotti
    • 2
  • Umberto Morra di Cella
    • 2
  1. 1.Italian National Research Council (CNR), IRPITurinItaly
  2. 2.Regional Agency for the Environmental Protection (ARPA)Aosta ValleyItaly

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