Quantifying Earthquake Hazards to Lifeline Systems at a Regional Scale with a Study of the Los Angeles Water System Pipeline Network
Publication: Lifelines 2022
ABSTRACT
In order to efficiently operate and maintain seismically resilient water lifeline systems, it is crucial to characterize the damage potential of the pipeline system in future earthquakes. Mitigation strategies to address known vulnerabilities can then be identified and prioritized in risk reduction programs to meet system performance criteria. Assessing water pipeline damage potential involves considering both the probabilistic geographic distribution of earthquake-induced shaking and ground deformations, and the locations of the pipe network. This study of hazards on a regional scale, rather than a site-specific scale, is a necessity of lifeline engineering. A recent major study was undertaken to evaluate system-level consequences for the entire City of Los Angeles water pipeline network, measured by the estimated total number of pipeline repairs and subsequent repair costs and times due to earthquakes. In order to compute such consequences from earthquakes, new methods were required for quantifying ground shaking, surface fault rupture, liquefaction, and landslide hazards at a regional scale. This study involved mapping zones of surface fault rupture hazard and assigning probability of fault rupture displacement, mapping zones of liquefaction hazard and assigning probability of liquefaction and median estimated liquefaction-induced settlement and lateral spread displacement as a function of peak ground acceleration (PGA) and moment magnitude (M), and mapping zones of landslide hazard with associated probability of earthquake-induced landslide and median estimated landslide displacement as a function of PGA and M. The methods and results of this study enable a detailed analysis of the City of Los Angeles water pipeline network’s resilience to seismic hazard and deaggregation of the risk by hazard type (ground shaking, surface fault rupture, liquefaction, and earthquake-induced landslide), by source faults, and by pipeline service zones.
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REFERENCES
Abrahamson, N. A., Silva, W. J., and Kamai, R. (2014). “Summary of the ASK14 Ground Motion Relation for Active Crustal Regions.” Earthquake Spectra, August 2014, Vol. 30, No. 3, 1025-1055.
Boore, D. M., Stewart, J. P., Seyhan, E., and Atkinson, G. M. (2014). “NGA-West2 Equations for Predicting PGA, PGV, and 5% Damped PSA for Shallow Crustal Earthquakes.” Earthquake Spectra, August 2014, Vol. 30, No. 3, 1057-1085.
Boulanger, R. W., and Idriss, I. M. (2016). “CPT-based liquefaction triggering procedure.” Journal of Geotechnical and Geoenvironmental Engineering, Vol. 142, No. 2, 04015065, doi: https://doi.org/10.1061/(ASCE)GT.1943-5606.0001388.
CGS (California Geological Survey). (2002). GIS Files of Official Alquist-Priolo Earthquake Fault Zones, Southern Region, CGS CD 2001-05, May 31, 2002.
Campbell, K. W., and Bozorgnia, Y. (2014). “NGA-West2 Ground Motion Model for the Average Horizontal Components of PGA, PGV, and 5% Damped Linear Acceleration Response Spectra.” Earthquake Spectra, August 2014, Vol. 30, No. 3, 1087-1115.
Chiou, B. S.-J., and Youngs, R. R. (2014). “Update of the Chiou and Youngs NGA Model for the Average Horizontal Component of Peak Ground Motion and Response Spectra.” Earthquake Spectra, August 2014, Vol. 30, No. 3, 1117-1153.
Field, E. H., Biasi, G. P., Bird, P., Dawson, T. E., Felzer, K. R., Jackson, D. D., Johsno, K. M., Jordan, T. H., Madden, C., Michael, A. J., Milner, K. R., Page, M. T., Parsons, T., Powers, P. M., Shaw, B. E., Thatcher, W. R., Weldon, R. J., II, and Zeng, Y. (2014). Uniform California Earthquake Rupture Forecast, Version 3 (UCERF3)-The Time-Independent Model; Bulletin of the Seismological Society of America. Vol. 104, No. 3, 1122-1180, doi: https://doi.org/10.3133/ofr20131165.
Idriss, I. M. (2014). “An NGA-West2 Empirical Model for Estimating the Horizontal Spectral Values Generated by Shallow Crustal Earthquakes.” Earthquake Spectra, August 2014, Vol. 30, No. 3, 1155-1177.
ImageCat, Inc. and Wood Environment and Infrastructure Solutions, Inc. (2019). “Report of Earthquake Scenario Development for Seismic Performance and Risk Evaluation of the Los Angeles Department of Water and Power’s Water System.”, Los Angeles, California, October 4, 2019.
Ishihara, K., and Yoshimine, M. (1992). “Evaluation of settlements in sand deposits following liquefaction during earthquakes.” Soils Found., Jpn. Geotech. Soc., Vol. 32, No. 1, 173-188.
Lee, Y., Graf, W. P., and Hu, Z. (2018). “Characterizing the Logic Tree Distribution in the USGS 2014 National Seismic Hazard Mapping Project (NSHMP).” Bull. of Seismo. Soc.of Am., Vol. 108, No. 3A, 1465–1480.
Lee, Y., Hu, J., Harounian, A., Hudson, M. B., Hudson, K. S., Hu, Z., and Eguchi, R. T. (2019). “Earthquake Scenario Development for Seismic Performance and Risk Evaluation of the City of Los Angeles Water System Pipeline Network.” Proc. of 11th International Exchange Forum: Seismic and Mutli-Hazard Preparedness and Response Practices for Drinking Water Utilities, October 9-11, 2019, Los Angeles, California.
LADPW (Los Angeles County Department of Public Works). (2018). Interactive Groundwater Well webpage. https://dpw.lacounty.gov/general/wells/.
Loth, C., and Baker, J. W. (2013). “A spatial cross-correlation model of spectral accelerations at multiple periods.” Earthquake Engineering and Structural Dynamics, 2013, Vol. 42, 397-417.
Moss, R. E. S., and Ross, Z. E. (2011). “Probabilistic Fault Displacement Hazard Analysis for Reverse Faults.” Bulletin of the Seismological Society of America, Vol. 101, No. 4, 1542-1553, August 2011.
Petersen, M., Dawson, T., Chen, R., Cao, T., Wills, C. J., Schwartz, C. P., and Frankel, A. D. (2011). “Fault Displacement Hazard for Strike-Slip Faults, Bulletin of the Seismological Society of America, Vol. 101, No. 2, 805-825, April 2011. https://doi.org/10.1875/0120100035.
Rathje, E. M., and Saygili, G. (2009). “Probabilistic assessment of earthquake-induced sliding displacements of natural slopes.” Bulletin of the New Zealand Society of Earthquake Engineering, Vol. 42, 18–27.
Rathje, E. M., and Saygili, G. (2011). “Pseudo-Probabilistic versus Fully Probabilistic Estimates of Sliding Displacements of Slopes,” Journal of Geotechnical and Geoenvironmental Engineering, ASCE, Vol. 137, No.3, 208-217, doi:https://doi.org/10.1061/(ASCE)GT.1943-5606.0000431.
Tokimatsu, K., and Seed, H. B. (1987). “Evaluation of settlements in sands due to earthquake shaking.” Journal of Geotechnical Engineering. Vol. 113, No. 8, 861-878.
USGS-CGS (USGS-California Geological Survey). (2006). Quaternary Fault and Fold Database for the United States, accessed 88/2019, from USGS web site: http//earthquakes.usgs.gov/regional/qfaults/.
Wells, D. L., and Coppersmith, K. J. (1994). “New empirical relationships among magnitude, rupture length, rupture width, rupture area, and surface displacement.” Bulletin of the Seismological Society of America, Vol. 84, 974–1002.
Wills, C. J., Gutierrez, C. I., Perez, F. G., and Branum, D. M. (2015). “A Next Generation VS30 Map for California Based on Geology and Topography.” Bulletin of the Seismological Society of America, Vol. 105, No. 6, 3083-3091, December 2015.
Youd, T. L., Idriss, I. M., Andrus, R. D., Arango, I., Castro, G., Christian, J. T., Doby, R., Finn, W. D. L., Harder, L. F., Hynes, M. E., Ishihara, K., Koester, J. P., Liao, S. S. C., Marcuson, W. F., Martin, G. R., Mitchell, J. K., Moriwaki, Y., Power, M. S., Robertson, P. K., Seed, R. B., and Stokoe, K. H. (2001). “Liquefaction Resistance of Soils: Summary Report from the 1996 NCEER and 1998 NCEER/NSF workshops on evaluation of liquefaction resistance of soils. Journal of Geotechnical and Geoenvironmental Engineering, Vol. 127, No. 10, 817-833.
Youngs, R. R., Arabasz, W. J., Anderson, R. E., Ramelli, A. R., Ake, J. P., Slemmons, D. B., McCalpin, J. P., Dose, D. I., Fridrich, C. J., Swann, F. H., III, Rogers, A. M., Yount, J. C., Anderson, L. W., Smith, K. D., Bruhn, K. D., Knuepfer, L. K., Smith, R. B., dePolo, C. M., O’Leary, K. W., Coppersmith, K. J., Pezzopane, S. K., Schwartz, D. P., Whitney, J. W., Olig, S. S., and Toro, G. R. (2003). “A Methodology for Probabilistic Fault Displacement Hazard Analysis (PFDHA).” Earthquake Spectra, Vol. 19, 191-219.
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Lifelines 2022
Pages: 428 - 439
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Published online: Nov 16, 2022
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