Geotechnical Earthquake Engineering and Soil Dynamics V
Gravelly Soil Liquefaction after the 2016 Ecuador Earthquake
Publication: Geotechnical Earthquake Engineering and Soil Dynamics V: Liquefaction Triggering, Consequences, and Mitigation (GSP 290)
ABSTRACT
The Mw 7.8 Muisne-Pedernales, Ecuador, earthquake on April 16, 2016, produced significant damage through the northwest coast of Ecuador. Important state infrastructure was seriously affected, including one of the major seaports in the country, the Port of Manta, located in the city that bears its name. This paper focuses on the geotechnical exploration, site characterization, and analyses performed for the marginal wharf's embankment of the port, where clear evidence of liquefaction was observed. Laboratory results showed that the embankment was composed of gravelly sand and sandy gravels, which limited the applicability of common exploration techniques, such as SPT and CPTu tests. Subsequently, liquefaction triggering evaluations were performed based on Vs and the Chinese dynamic penetration test (DPT), which can account for the large gravel content in the soils. The results of this evaluation are presented and compared with field observations showing that these methods correctly identified the potential for liquefaction in the embankment.
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REFERENCES
Andrus, R.D., and K.H. Stokoe, II (2000). Liquefaction resistance of soils from shear-wave velocity. Journal of Geotechnical and Geoenv. Engineering 126:(11)1015–1025.
ASTM Standard D2487 (2000). Standard Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System). ASTM International, West Conshohocken, PA, 2000., www.astm.org.
Boulanger, R.W., and Idriss, I.M. (2014). CPT and SPT based liquefaction triggering procedures. Center for Geotechnical Modeling, UC Davis.
Cao, Z., Youd, T. L., and Yuan, X. (2011). “Gravelly soils that liquefied during 2008 Wenchuan, China earthquake, Ms 5 8.0.” Soil Dyn. Earthquake Eng., 31(8), 1132–1143.
Cao, Z., Youd, T., and Yuan, X. (2013). Chinese dynamic penetration test for liquefaction evaluation in gravelly soils. J. Geotechnical and Geoenv. Engineering 139:(8)1320–1333.
Cetin, K. O., Seed, R. B., Der Kiureghian, A., Tokimatsu, K., Harder, L. F., Kayen, R. E., and Moss, R. E. S. (2004). Standard penetration test-based probabilistic and deterministic assessment of seismic soil liquefaction potential. Geotechnical and Geoenv Eng., ASCE 130(12), 1314–340.
Chang, W. J. (2016). Evaluation of Liquefaction Resistance for Gravelly Sands Using Gravel Content–Corrected Shear-Wave Velocity. J. Geotechnical and Geoenv. Eng., ASCE 142(5)
Chang, W. J., Chang, C. W., and Zeng, J. K. (2014). “Liquefaction characteristics of gap-graded gravelly soils in K0 condition.” Soil Dyn. Earthquake Eng., 56, 74–85.
Cubrinovski, M., Bray, J., de la Torre, C., Olsen, M., Bradley, B., Chiaro, G., Stocks, E., Wotherspoon, L. (2017). Liquefaction effects and associated damages observed at the Wellington CentrePort from the 2016 Kaikoura earthquake. Bulletin of the New Zealand Society for Earthquake Engineering, 50(2), 152–173.,
Evans, MD, Zhou, S. (1995) Liquefaction behavior of sand–gravel composites. J. Geotech Eng, ASCE 1995; 121(3), 287–98.
Ghayoomi, M., Suprunenko, G., Mirshekari, M. (2017) Cyclic triaxial test to measure strain-dependent shear modulus of unsaturated sand Intern. Journal of Geomech., Volume 17
Instituto Geofísico at the Escuela Politécnica Nacional, IG-EPN. (2016). Acelerógrafos, Publicado en Instrumentación, igepn.edu.ec/acelerografos, last accessed 7/1/16.
Instituto Oceanográfico de la Armada, INOCAR. (2016). Informe técnico de tsunami 16-abril-2016, online report, inocar.mil.ec/web/index.php/institucion/resena-historica/36informestecnicos/589-informe-tecnico-de-tsunami-16-abril-2016, last accessed 7/1/16.
Kayen, R., Moss, R., Thompson, E., Seed, R., Cetin, K., Der Kiureghian, A., Tanaka, Y., Tokimatsu, K. (2013). Shear wave velocity–based probabilistic and deterministic assessment of seismic soil liquefaction potential, J. Geotech. Geoenviron. Eng., 139(3): 407–419.
Nikolaou, S., Vera-Grunauer, X., & Gilsanz, R., eds., (2016). GEER-ATC Earthquake Reconnaissance: April 16 2016, Muisne, Ecuador, Rep. GEER-049,
co-authors: Alvarado, A., Alzamora, D., Antonaki, N., Arteta, C., Athanasopoulos, A., Bassal, P., Caicedo, A., Casares, B., Diaz, V., Diaz-Fanas, G., Gilsanz, R., González, O., Hernandez, L., Kishida, T., Kokkali, P., López, P., Luque, R., Lyvers, G.M., Maalouf, S., Mezher, J., Miranda, E., O’Rourke, T., O’Connor, F., Rodríguez, L.F., Rollins, K., Stavridis, A., Toulkeridis, T., Vaxevanis, N., Wood, C., Yepes, H., Yepez, Y. Available at geerassociation.org.
Nikolaou, S., Zekkos, D. Asimaki, D., and Gilsanz, R., eds. (2014) GEER/EERI/ATC Reconnaissance: January 26th and February 2nd, 2014 Cephalonia, Greece Earthquakes, Report GEER/EERI/ATC-034, Version 1.
Robertson, P.K. (2009). Performance based earthquake design using the CPT. Performance Based Design. Pp. 3–20 in Earthquake Geotechnical Engineering: From Case History to Practice, edited by T. Kokusho, Y. Tsukamoto, and M. Yoshimine. London: Taylor & Francis.
Seed, H. B., and Idriss, I. M. (1971). “Simplified procedure for evaluating soil liquefaction potential.” J. Soil Mech. and Found. Div., ASCE, 97(9), 1249–1273.
Stokoe, K.H., II, G.J. Rix, I. Sanchez-Salinero, R.D. Andrus, and Y.J. Nok. (1988). Liquefaction of gravelly soils during the 1983 Borah Peak, ID earthquake. Pp. 183–188 in Proceedings of the 9thWorld Conference in Earthquake Engineering, Tokyo, Japan.
Vera, X., Lopez, S., Gonzalez, O., Davila, D., Nikolaou, S., Ordonez, J., Aviles, A., Anton, A. (2017). Case History: Observed Liquefaction and its Evaluation after the April 16, 2016, Mw7.8 Muisne, Pedernales Earthquake. PBD II Earthquake Geotechnical Engineering.
Ye, L., Kanamori, H., Avouac, J., Li, L., Cheung, K., Lay, T. (2017) The 16 April 2016, MW 7.8 (MS 7.5) Ecuador earthquake: A quasi-repeat of the 1942 MS 7.5 earthquake and partial re-rupture of the 1906 MS 8.6 Colombia–Ecuador earthquake. Earth and Planetary Science Letters, Volume 458, 15 January 2017, Pages 442–443
Youd, T. L., Idriss, I. M., Andrus, R. D., Arango, I., Castro, G., Christian, J. T., Dobry, 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, J. Geotechnical and Geoenv. Eng., ASCE 127(10), 817–33.
Information & Authors
Information
Published In
Geotechnical Earthquake Engineering and Soil Dynamics V: Liquefaction Triggering, Consequences, and Mitigation (GSP 290)
Pages: 273 - 285
Editors: Scott J. Brandenberg, Ph.D., University of California, Los Angeles, and Majid T. Manzari, Ph.D., George Washington University
ISBN (Online): 978-0-7844-8145-5
Copyright
© 2018 American Society of Civil Engineers.
History
Published online: Jun 7, 2018
ASCE Technical Topics:
- Business management
- Developing countries
- Dynamic tests
- Earthquakes
- Engineering fundamentals
- Geohazards
- Geomechanics
- Geotechnical engineering
- Geotechnical investigation
- Gravels
- Hydraulic engineering
- Hydraulic structures
- Infrastructure
- Laboratory tests
- Pavements
- Penetration tests
- Ports and harbors
- Practice and Profession
- Sandy soils
- Soil liquefaction
- Soil mechanics
- Soil properties
- Soils (by type)
- Tests (by type)
- Transportation engineering
- Water and water resources
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