Assessment of Pohang Earthquake-Induced Liquefaction at Youngil-Man Port Using the UBCSAND2 Model
Source abstract
Abstract
The practical constitutive model UBCSAND2, which combines two-mobilized planes—a maximum shear stress plane and a horizontal plane within a framework of classical plasticity approach—is used to incorporate shear-induced effects in both loading and unloading as well as principal stress rotation effects. UBCSAND2 was calibrated by capturing cyclic direct simple shear (CDSS) test results of Pohang sand, which was collected from liquefied paddy fields due to the 2017 Pohang earthquake (Mw = 5.4) in South Korea. The model procedure focuses on simple shear condition because it best simulates field conditions under earthquake loading. The calibrated UBCSAND2 model is then used to assess the liquefaction-induced damages that occurred at the quay wall and backfill layer in Youngil-man port near the epicenter of the Pohang earthquake. The numerical results show that liquefaction mostly occurred in silty sand layers, in which the excess pore pressure ratio reached almost one. The estimated displacements of the quay wall and the predicted settlement of reclaimed area obtained from the analysis were in good agreement with those obtained from field measurements.
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Research context
OpenAlex topics: Geotechnical Engineering and Soil Mechanics · Geotechnical Engineering and Underground Structures · Geotechnical Engineering and Soil Stabilization
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Civil Engineering, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, Korea
School of Architecture, Civil, Environment and Energy, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, Korea
Funding
National Research Foundation of Korea
References (41)
Show source-provided references
1. Aubry, D., and Modaresi, H. (1992). Seismic wave propagation in soils including non-linear and pore pressure effects. Recent Advances in Earthquake Engineering and Structural Dynamics, Ouest éditions.
2. Beaty, M.H., and Perlea, V.G. (2011, January 11–15). Several observations on advanced analyses with liquefiable materials. Proceedings of the 31st Annual USSD Conference and 21st Conference on Century Dam Design-Advances and Adaptations, San Diego, CA, USA.
3. Beaty, M.H., and Byrne, P.M. (2011). UBCSAND constitutive model version 904aR. Itasca UDM Web Site, 1–69.
4. Numerical modeling of liquefaction and comparison with centrifuge tests10.1139/t03-088 ↗
5. Application of UBCSAND to the LEAP centrifuge experiments10.1016/j.soildyn.2017.10.006 ↗
6. Numerical model verification calibration of George Massey Tunnel using centrifuge models10.1139/t04-039 ↗
7. Seismic liquefaction, lateral spreading, and flow slides: A numerical investigation into void redistribution10.1139/t07-027 ↗
8. Park, S.S. (2005). A Two Mobilized-Plane Model and Its Application for Soil Liquefaction Analysis. [Ph.D. Thesis, University of British Columbia]. Available online: https://open.library.ubc.ca/cIRcle/collections/ubctheses/831/items/1.0063362.
9. Earthquake-induced ground deformations in the low-seismicity region: A case of the 2017 M5.4 Pohang, South Korea, earthquake10.1193/062318EQS160M ↗
10. Surface Deformations and Rupture Processes Associated with the 2017 Mw 5.4 Pohang, Korea, Earthquake10.1785/0120180167 ↗
11. A case study on earthquake-induced deformation of quay wall and backfill in Pohang by 2D-effective stress analysis
12. Behavior Analysis on Earthquake-Induced Deformation of Quay Wall and Apron in Ground at Youngilman Port Considering Drainage Condition Using FEM Analysis10.9765/KSCOE.2019.31.6.386 ↗
13. Liquefaction Hazard Map Based on in Pohang Under Based on Earthquake Scenarios10.5000/EESK.2018.22.3.219 ↗
14. Jeong, M.S. (2018, January 7). Investigation and analysis of Pohang earthquake in relation to geotechnical earthquake engineering. Proceedings of the Symposium on characteristics of Pohang Earthquake and Countermeasures for Geotechnical Structure, Seoul, Korea. (In Korean).
15. Investigation of Pohang Earthquake Liquefaction Using 1D Effective-Stress Site Response Analysis
16. Strain Space Plasticity Model for Cyclic Mobility10.3208/sandf1972.32.2_1 ↗
17. Analysis of Undrained Cyclic behavior of Sand under Anisotropic Consolidation10.3208/sandf1972.32.2_16 ↗
18. Analysis of CANLEX liquefaction embankments: Prototype and centrifuge models10.1139/t97-034 ↗
19. Dakoulas, P., Yegian, M., and Holtz, R. (1998). An Effective Stress Model for Predicting Liquefaction Behaviour of Sand. Geotechnical Earthquake Engineering and Soil Dynamics III, ASCE, Geotechnical Special Publication.
20. Park, S.S., and Byrne, P.M. (2004, January 25–27). Practical constitutive model for soil liquefaction. Proceedings of the 9th International Symposium on Numerical Models in Geomechanics (NUMOG IX), Ottawa, ON, Canada.
21. The stress-dilatancy relation for static equilibrium of an assembly of particles in contact
22. Volume changes in sands during cyclic loading10.1061/JSFEAQ.0001658 ↗
23. Sriskandakumar, S. (2004). Cyclic Loading Response of Fraser River Sand for Validation of Numerical Models Simulating Centrifuge Tests. [Master’s Thesis, University of British Columbia]. Available online: https://open.library.ubc.ca/cIRcle/collections/ubctheses/831/items/1.0063399.
24. Nong, Z. (2020). Liquefaction Characteristics of Nakdong River Sand Using Cyclic Triaxial and Simple Shear Tests. [Ph.D. Thesis, Kyungpook National University]. Available online: https://dcollection.knu.ac.kr.
25. Liquefaction resistance of soils: Summary report from the 1996 NCEER and 1998 NCEER/NSF workshops on evaluation of liquefaction resistance of soils10.1061/(ASCE)1090-0241(2001)127:4(297) ↗
26. (2019, September 23). National Earthquake Comprehensive Information System (NECIS). (In Korean).
27. (2016). Korea Building Code, Architectural Institute of Korea. Available online: http://aikkbc.or.kr.
28. Validation of the SCEC Broadband Platform V14.2 Simulation Methods Using Pseudospectral Acceleration Data
29. Chowdhury, K.H. (2018). Evaluation of the State of Practice Regarding Nonlinear Seismic Deformation Analyses of Embankment Dams Subject to Soil Liquefaction Based on Case Histories. [Ph.D. Thesis, University of California]. Available online: https://escholarship.org/uc/item/4515d2j1.
30. Itasca Consulting Group Inc. (2020, March 30). Minneapolis, Minnesota. FLAC–Fast Lagrangian Analysis of Continua, Version 7.0, Software. Available online: https://www.itascacg.com/software/flac.
31. EduPro Civil Systems, Inc. (2020, June 08). Sammamish, Washington DC, 2018. ProShake, Version 2.0, Software. Available online: http://www.proshake.com/PS2.0Educational.html.
32. Mineral Compositions and Distribution in the Drilling Cores from the Miocene Pohang Basin, Korea10.9727/jmsk.2017.30.3.113 ↗
33. (2015, May 15). Integrated DB Center of National Geotechnical Information. 2015, SPT Database. Available online: http://www.geoinfo.or.kr.
34. Mun, G.Y. (2018). A Study on the Effect of Relative Density and Particle Size Distribution on the Liquefaction Resistance Strength of Sand in Pohang Liquefaction Region. [Master’s Thesis, Pusan National University].
35. Liquefaction Resistance of Pohang Sand
36. Morita, T., Iai, S., Liu, H., Ichii, K., and Sato, Y. (1997). Simplified Method to Determine Parameter of FLIP, Technical Note of the Port and Harbor Research Institutive.
37. Iai, S. (2000). Seismic Design Guidelines for Port Structures, A.A. Balkema Publishers.
38. Moduli and damping factors for dynamic analyses of cohesionless soils10.1061/(ASCE)0733-9410(1986)112:11(1016) ↗
39. Finite dynamic model for infinite media10.1061/JMCEA3.0001144 ↗
40. Transmitting boundaries: A comparison10.1002/nag.1610010204 ↗
41. The coefficient of earth pressure at rest