2009 NZSEE Conference 2-5 April Christchurch ESTIMATING SEISMIC IMPACTS ON LIFELINES: AN INTERNATIONAL REVIEW FOR RISKSCAPE

Transcription

1 2009 NZSEE Conference 2-5 April Christchurch ESTIMATING SEISMIC IMPACTS ON LIFELINES: AN INTERNATIONAL REVIEW FOR RISKSCAPE Sonia GIOVINAZZI 1 and Andrew KING 2 1 University of Canterbury 2 GNS Science

2 Assessing the Multi-hazard performance of lifelines in RiskScape

3 Presentation outline LESSLOSS EU funded research project HAZUS MH - FEMA ALA American Lifelines Alliance MCREE Multidisciplinary Centre for Earthquake Engineering Research MIRISK World Bank funded project RiskScape

4 USA WORK HAZUS MH - FEMA ALA American Lifelines Alliance MCREE Multidisciplinary Centre for Earthquake Engineering Research

5 HAZUS MH Earthquake, Wind, Flood Possible damages to substation sub-components: disconnect switches - misalignment; etc. circuit breakers - circuit breaker phase sliding off its pad; circuit breaker tipping over; interrupter-head falling to the ground; etc. current transformers - oil leaking from transformers, porcelain cracked; etc. transformers - leakage of transformer radiators; etc.

6 HAZUS MH Earthquake, Wind, Flood P[Dk PGA] 1 Medium Voltage Substation - Anchored/Seismic Components PGA [g] D2 slight/minor D3 moderate D4 extensive D5 complete DR 5 c i 2 i i DR P D PGA

7 HAZUS MH Earthquake, Wind, Flood Dr % Functionality HAZUS Unanchored Component HAZUS Anchored Component 80 Pole-mounted cables and transformers Ground cables and transformers Poles Restoration Curves - Substations 0 5 DR c DR i 2 ip D i PGA MMI Days D2 D3 D4 D5

8 ALA American Lifelines Alliance

9 MCREE - REDARS Risks due to Earthquake DAmage to Roadway Systems Sponsored by FHWA and by Caltrans

10 MCREE DSS for LADWP Los Angeles Department of Water and Power Electric Transmission System Pump Stations and Electricity Outage Time Groundwater Wells and Electricity Outage Time

11 European Union Work LESSLOSS - Risk Mitigation for earthquake and landslides EU funded research project

12 LESSLOSS Pipeline Vulnerability Functions for PGD RR/km = Repair Rate average number of pipe repairs per km Brittle Pipe

13 LESSLOSS Pipeline Vulnerability Functions for PGV RR/km = Repair Rate average number of pipe repairs per km Ductile Pipe

14 LESSLOSS Fragility Functions Above ground RC tanks subjected to wave propagation: HAZUS 2004 versus ALA 2001 (dashed lines) Embedded tunnels subjected to wave propagation : empirical fragility curves from HAZUS 2004 and ALA 2001 versus Analytical Vulnerability Functions

15 LESSLOSS KOERIPIPE software tool Number of Repairs for gas line in Istanbul district (ALA 2001) Repair Rate for gas line in Istanbul district (ALA 2001)

16 LESSLOSS damage for water distribution system in Thessaloniki Damage Level for water pumps, tanks and pipes and Repair Rate for pipes evaluated for Thessaloniki, Greece (HAZUS 2004)

17 JAPAN VIEWPOINT MIRISK World Bank funded project

18 MIRISK Mitigation Information and Risk Identification System Funded by the World Bank in agreement with AGORA, Alliance for Global Open Risk Analysis created by the Research Centre for Disaster Risk Management, at Kyoto University

19 NEW ZEALAND VIEWPOINT Implementation Feasibility in RiskScape

20 Christchurch pilot Area: Potable Water System Components GIS Classification Hazard transmission, aqueducts, and distribution pipelines reservoirs, water treatment plants, wells, pumping stations and storage tanks line ductile or brittle PGV/PGD point/polygon capacity; anchorage* PGA/PGD HAZUS Classification scheme Christchurch Potable Water System GIS maps

21 Christchurch pilot Area: Electric Power System Components Classification Hazard substations distribution circuits generation plants parameters: a) low, medium, or high voltage; b) with anchored or standard components parameters: a) seismically designed or b) standard components parameters: a) small or medium/large, b) with anchored or unanchored components* PGA/PGD PGA PGA Christchurch Electric Power System-1:1000 map HAZUS Classification scheme

22 Christchurch pilot Area: Establishing Inferences Christchurch Electric Power System-1:250 map SUBSTATIONS Possible inferences HAZUS classification ORION database Possible Inferences V LOW = 115 KV V MEDIUM = 230 KV V HIGH =500KV anchored components no anchored components incoming supply feeder voltage (11kv or 66kv) Installation Year IY, Replacement year RY V LOW incoming supply feeder 11kv V MEDIUM incoming supply feeder 66kv anchored component IY or RY 2000 no anchored component IY or RY<2000

23 CONCLUSIONS Awareness of international literature and overseas on-going reserch projects Opportunity for New Zealand to leverage on and improve existing know-how Towards an integrated reserch platform A diagnosis of Transit NZ decision-making during emergency events (Dantas, Giovinazzi, Seville) Benchmarking the readiness of Road Controlling Authorities to meet their obligations under the CDEM Act 2002 (Dantas Giovinazzi) Transport network reliability and resilience (Nicholson, Giovinazzi) ACKNOWLEDGMENTS The financial support provided by the NZ Foundation of Science and Technology through the FRST- Research Program The Regional Riskscape model and the financial support provided by the Earthquake Commission EQC for this specific research is gratefully acknowledged. Our thanks go to Christchurch City Council & Environment Canterbury and to Orion New Zealand Limited for their kind collaboration. Many thanks to Jim Cousin, Peter Wood and Stefan Reese for the useful comments provided.