TAILORING EMERGENCY PREPAREDNESS TO REAL RISK PARAMETERS IN A LANDSLIDE PRONE AREA: THE CASE

OF VAL GENASCA (COMUNE DI SAN GIACOMO FILIPPO - SONDRIO)

Prof. Scira MenoniIng. Donatella SterpiDott. Gregorio Mannucci

Michele Spandrio 799944

Landslide risk 2

Procedure 3

1- Physical model and collapse mechanisms

2 - Event and damage scenarios

3 - Alert system: thresholds and monitoring system

4 - Challenges and actions definitions

Val Genasca landslide case study: location 4

Val Genasca landslide 5

Actual monitoring system 6

Scenarios – Partial collapse 7

Volume: 100 m³ up to 200.000 m³

Scenarios – Collapse 8

Volume: 600.000 m³ up to 700.000 m³

Scenarios – Total collapse 9

Volume: 1 million m³ up to 1,8 million m³

Relation between cumulated rain and displacement 10

Best correlation 11

Relationship along the time 12

2011

2013

2014

2012

Creep model – Voight curve 13

= AFukuzono (1985), Voight (1989)

Ω=1

𝐴 (𝛼−2)[ 𝐴 (𝛼−1 ) 𝑡 𝑓 +Ω 𝑓

(1−𝛼) ](2−𝛼)(1−𝛼)− [ 𝐴 (𝛼−1) ( 𝑡 𝑓 − 𝑡 )+ Ω 𝑓

(1−𝛼)](2−𝛼)(1−𝛼)

Thresholds definition 14

Instrument subdivision 15

GROUP 1

GROUP 2

GROUP 3GROUP 4

Challenges 16

Actions 17

Carta 2.1

Acknowledgments 18

Thank you so much for your attention