Hazard management in a debris flow affected area – Spreitgraben, Switzerland

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Daniel TOBLER, Isabelle KULL

GEOTEST AG, Switzerland

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Hazard management in a debris flow affected area – Spreitgraben, Switzerland

  1. 1. Hazard Management in a Debris Flow Affected Area – Spreitgraben SwitzerlandGlobal Risk Forum, DavosAugust 29th, 2012 Daniel Tobler Isabelle Kull
  2. 2. Content 1. Introduction 2. Events - CausalityGlobal Risk Forum, Davos 3. Risk Management 4. ConclusionsAugust 29th, 2012
  3. 3. 1. Introduction – Geographic LocationGlobal Risk Forum, Davos Guttannen, CentralAugust 29th, 2012 Switzerland - Bernese Oberland
  4. 4. Global Risk Forum, DavosAugust 29th, 2012 Channel 1. Introduction – Area Overview
  5. 5. Global Risk Forum, DavosAugust 29th, 2012 Aare 1. Introduction – Area Overview
  6. 6. 1. Introduction – Damage Potential Single HousesGlobal Risk Forum, Davos Main RoadAugust 29th, 2012 - Main Road Village - Main Gas Pipeline
  7. 7. Content 1. Introduction 2. Events - CausalityGlobal Risk Forum, Davos 3. Risk Management 4. ConclusionsAugust 29th, 2012
  8. 8. Global Risk Forum, DavosAugust 29th, 2012 2. Events - Causality
  9. 9. Global Risk Forum, DavosAugust 29th, 2012 2. Events - Causality
  10. 10. Global Risk Forum, DavosAugust 29th, 2012 2. Events - Causality
  11. 11. October 2011H.R. Keusen, Geotest AG
  12. 12. October 2011H.R. Keusen, Geotest AG
  13. 13. October 2011H.R. Keusen, Geotest AG
  14. 14. October 2011H.R. Keusen, Geotest AG velocity: ~ 15 m/s
  15. 15. October 2011H.R. Keusen, Geotest AG
  16. 16. October 2011H.R. Keusen, Geotest AG
  17. 17. H.R. Keusen, Geotest AGOctober 2011
  18. 18. H.R. Keusen, Geotest AGOctober 2011
  19. 19. H.R. Keusen, Geotest AGOctober 2011
  20. 20. H.R. Keusen, Geotest AGOctober 2011
  21. 21. October 2011H.R. Keusen, Geotest AG
  22. 22. October 2011H.R. Keusen, Geotest AG
  23. 23. October 2011H.R. Keusen, Geotest AG
  24. 24. October 2011H.R. Keusen, Geotest AG
  25. 25. 2. Events - Causality Rockfall Ritzlihorn Precipitation Temperature Melting PermafrostGlobal Risk Forum, Davos Snow - AvalanchesAugust 29th, 2012 Debris-Fan Aare River
  26. 26. 2. Events - Causality Ablagerungen Aare 2012 ? 2011 2010 2009Global Risk Forum, Davos 2007August 29th, 2012
  27. 27. Global Risk Forum, DavosAugust 29th, 2012 2. Events – Causality
  28. 28. Global Risk Forum, DavosAugust 29th, 2012 2. Events – Causality
  29. 29. Global Risk Forum, DavosAugust 29th, 2012 2. Events – Causality
  30. 30. Content 1. Introduction 2. Events - Causality 3. Risk Management 4. ConclusionsGlobal Risk Forum, DavosAugust 29th, 2012 Planat 2011
  31. 31. 3. Risk Management – Monitoring, Early Warning Trigger Line Gauge-Radar Geophone Webcam Data Station PluviometerGlobal Risk Forum, Davos Temperature Measurement Laser ScannerAugust 29th, 2012 FMCW-Doppler-Radar Interferometric-Radar Red Lights
  32. 32. 3. Risk Management – Monitoring, Early WarningGlobal Risk Forum, DavosAugust 29th, 2012
  33. 33. 3. Risk Management – Monitoring, Early WarningGlobal Risk Forum, DavosAugust 29th, 2012
  34. 34. 3. Risk Management – Monitoring, Early WarningGlobal Risk Forum, DavosAugust 29th, 2012
  35. 35. 3. Risk Management – Monitoring, Early WarningGlobal Risk Forum, DavosAugust 29th, 2012
  36. 36. 3. Risk Management – Monitoring, Early WarningGlobal Risk Forum, DavosAugust 29th, 2012 - Evacuation Plan - Controlling
  37. 37. 3. Risk Management – Resettlement Hazard MapGlobal Risk Forum, DavosAugust 29th, 2012
  38. 38. 4. Conclusions Major Tasks - How to handle the huge amount of bedload deposition - Hazard and risk management Key to Success - Profound knowledge of ongoing processesGlobal Risk Forum, Davos - vast, sophisticated early warning system - Role, tasks and responsabilities for all affected elementsAugust 29th, 2012 (infrastructure owners, authorities) clearly defined - Land use planning for a entire village (resettlement) at early stage
  39. 39. Hazard Management in a Debris Flow Affected Area – Spreitgraben Switzerland ThanksGlobal Risk Forum, DavosAugust 29th, 2012 Daniel Tobler Isabelle Kull

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