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

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Daniel TOBLER, Isabelle KULL …

Daniel TOBLER, Isabelle KULL

GEOTEST AG, Switzerland

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  • 1. Hazard Management in a Debris Flow Affected Area – Spreitgraben SwitzerlandGlobal Risk Forum, DavosAugust 29th, 2012 Daniel Tobler Isabelle Kull
  • 2. Content 1. Introduction 2. Events - CausalityGlobal Risk Forum, Davos 3. Risk Management 4. ConclusionsAugust 29th, 2012
  • 3. 1. Introduction – Geographic LocationGlobal Risk Forum, Davos Guttannen, CentralAugust 29th, 2012 Switzerland - Bernese Oberland
  • 4. Global Risk Forum, DavosAugust 29th, 2012 Channel 1. Introduction – Area Overview
  • 5. Global Risk Forum, DavosAugust 29th, 2012 Aare 1. Introduction – Area Overview
  • 6. 1. Introduction – Damage Potential Single HousesGlobal Risk Forum, Davos Main RoadAugust 29th, 2012 - Main Road Village - Main Gas Pipeline
  • 7. Content 1. Introduction 2. Events - CausalityGlobal Risk Forum, Davos 3. Risk Management 4. ConclusionsAugust 29th, 2012
  • 8. Global Risk Forum, DavosAugust 29th, 2012 2. Events - Causality
  • 9. Global Risk Forum, DavosAugust 29th, 2012 2. Events - Causality
  • 10. Global Risk Forum, DavosAugust 29th, 2012 2. Events - Causality
  • 11. October 2011H.R. Keusen, Geotest AG
  • 12. October 2011H.R. Keusen, Geotest AG
  • 13. October 2011H.R. Keusen, Geotest AG
  • 14. October 2011H.R. Keusen, Geotest AG velocity: ~ 15 m/s
  • 15. October 2011H.R. Keusen, Geotest AG
  • 16. October 2011H.R. Keusen, Geotest AG
  • 17. H.R. Keusen, Geotest AGOctober 2011
  • 18. H.R. Keusen, Geotest AGOctober 2011
  • 19. H.R. Keusen, Geotest AGOctober 2011
  • 20. H.R. Keusen, Geotest AGOctober 2011
  • 21. October 2011H.R. Keusen, Geotest AG
  • 22. October 2011H.R. Keusen, Geotest AG
  • 23. October 2011H.R. Keusen, Geotest AG
  • 24. October 2011H.R. Keusen, Geotest AG
  • 25. 2. Events - Causality Rockfall Ritzlihorn Precipitation Temperature Melting PermafrostGlobal Risk Forum, Davos Snow - AvalanchesAugust 29th, 2012 Debris-Fan Aare River
  • 26. 2. Events - Causality Ablagerungen Aare 2012 ? 2011 2010 2009Global Risk Forum, Davos 2007August 29th, 2012
  • 27. Global Risk Forum, DavosAugust 29th, 2012 2. Events – Causality
  • 28. Global Risk Forum, DavosAugust 29th, 2012 2. Events – Causality
  • 29. Global Risk Forum, DavosAugust 29th, 2012 2. Events – Causality
  • 30. Content 1. Introduction 2. Events - Causality 3. Risk Management 4. ConclusionsGlobal Risk Forum, DavosAugust 29th, 2012 Planat 2011
  • 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. 3. Risk Management – Monitoring, Early WarningGlobal Risk Forum, DavosAugust 29th, 2012
  • 33. 3. Risk Management – Monitoring, Early WarningGlobal Risk Forum, DavosAugust 29th, 2012
  • 34. 3. Risk Management – Monitoring, Early WarningGlobal Risk Forum, DavosAugust 29th, 2012
  • 35. 3. Risk Management – Monitoring, Early WarningGlobal Risk Forum, DavosAugust 29th, 2012
  • 36. 3. Risk Management – Monitoring, Early WarningGlobal Risk Forum, DavosAugust 29th, 2012 - Evacuation Plan - Controlling
  • 37. 3. Risk Management – Resettlement Hazard MapGlobal Risk Forum, DavosAugust 29th, 2012
  • 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. Hazard Management in a Debris Flow Affected Area – Spreitgraben Switzerland ThanksGlobal Risk Forum, DavosAugust 29th, 2012 Daniel Tobler Isabelle Kull