Browse > Article

Assessment of Seismic Site Response at Hongseong in Korea Based on Two-dimensional Basin Modeling using Spatial Geotechnical Information  

Sun, Chang-Guk (Earthquake Research Center, Korea Institute of Geoscience and Mineral Resources)
Publication Information
The Journal of Engineering Geology / v.19, no.1, 2009 , pp. 15-23 More about this Journal
Abstract
The site effects relating to the amplification of ground motion under earthquake loading are strongly influenced by both the subsurface soil condition and geologic structure. In this study, the site effects at the Hongseong area in Korea were examined by both the site investigation including borehole drilling and in-situ seismic tests and the site visit for acquiring geologic information of ground surface. Subsurface of Hongseong area with a major instrumental earthquake event in 1978 is composed of weathered layers of a maximum of 45 m thickness overlying bedrock. A geotechnical information system based on GIS framework was implemented to effectively find out spatial geologic structure of study area and it indicated Hongseong is a shallow and wide shaped basin. Two-dimensional finite element (FE) analyses for a representative cross-section of the Hongseong area were performed to evaluate seismic site responses. From the results of seismic responses, it was observed that the ground motions were amplified during the propagation of shear waves through the soil layer overlying the bedrock and the duration of shaking near the basin edges was prolonged due to the surface waves generated by interactions of shear waves with basin geometry. Furthermore, one-dimensional FE seismic response analyses were additionally conducted for soil sites selected in the basin, and it gives similar results to the two-dimensional seismic responses at most locations in the basin with the exception of the locations near the basin edges, because the basin in this study is very shallow and wide.
Keywords
seismic response; site effects; basin effect; geographic information system; geotechnical information;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Sun, C.G. and Chung, C.K., 2008, Assessment of site effects of a shallow and wide basin using geotechnical information-based spatial characterization, Soil Dynamics and Earthquake Engineering, 28(12), 1028-1044   DOI   ScienceOn
2 Sun, C.G. and Chung, C.K., 2006, Development and application of a methodology to build geotechnical information system based on geo-knowledge using GIS technology, Journal of the Korean Geotechnical Society, 22(2), 55-68 (in Korean)   과학기술학회마을   ScienceOn
3 Kramer, S.L., 1996, Geotechnical Earthquake Engineering, Prentice-Hall, New Jersey
4 Marrara, F. and Suhadolc, P., 2001, 2-D modeling of site effects along the EURO-SEISTEST array (Volvi Graben, Greece), Pure and Applied Geophysics, 158(12),2369-2388   DOI   ScienceOn
5 Makra, K., Chavez-Garcia, F.J., Raptakis, D., and Pitilakis, K., 2005, Parametric analysis of the seismic response of a 2D sedimentary valley: implications for code implementations of complex site effects, Soil Dynamics and Earthquake Engineering, 25(4), 303-315   DOI   ScienceOn
6 Sun, C.G., Chung, C.K., and Kim, J.K., 2008b, Quantitative analysis on intensity of 1936 Jirisan earthquake by estimating seismic response characteristics at the site of five-story stone pagoda in Ssang-gye-sa, Journal of the Korean Society of Civil Engineers, 28(3C), 187-196 (in Korean)
7 Oliver, M.A. and Webster, R., 1990, Kriging: a method of interpolation for geographical information systems, International Journal of Geographical Information Systems, 4(3), 313-332   DOI   ScienceOn
8 Kim, D.S., Chung, C.K., Sun, C.G., and Bang, E.S., 2002, Site assessment and evaluation of spatial earthquake ground motion of Kyeongju, Soil Dynamics andEarthquake Engineering, 22(5), 371-387   DOI   ScienceOn
9 Kumar, J.K., Konno, M., and Yasuda, N., 2000, Subsurface soil-geology interpolation using fuzzy neural network, Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 126(7), 632-639   DOI   ScienceOn
10 Bakir, B.S., Ozkan, M.Y., and Ciliz, S., 2002, Effects of basin edge on the distribution of damage in 1995 Dinar, Turkey earthquake, Soil Dynamics and Earthquake Engineering, 22(4), 335-345   DOI   ScienceOn
11 HKS, 1998, ABAQUS User’s Manual, Version 5.8, Hibbitt, Kalsson and Sorenssen, Inc
12 Caruso, C. and Quarta, F., 1998, Interpolation methods comparison, Computers and Mathematics with Applications, 35(12), 109-126   DOI   ScienceOn
13 Sun, C.G., Chun, S.H., Ha, T.G., Chung, C.K., and Kim, D.S., 2008a, Development and application of GISbased tool for earthquake-induced hazard prediction, Computers and Geotechnics, 35(3), 436-449   DOI   ScienceOn
14 Sun, C.G., Kim, D.S., and Chung, C.K., 2005, Geologic site conditions and site coefficients for estimating earthquake ground motions in the inland areas of Korea, Engineering Geology, 81(4), 446-469   DOI   ScienceOn
15 Desai, C.S. and Siriwardance, H.J., 1984, Constitutive Laws for Engineering Materials with Emphasis on Geologic Materials, Prentice-Hall, New Jersey
16 Raptakis, D.G., Manakou, M.V., Chavez-Garcia, F.J., Makra, K.A., and Pitilakis, K.D., 2005, 3D configuration of Mygdonian basin and preliminary estimate of its site response, Soil Dynamics and Earthquake Engineering, 25(11), 871-887   DOI   ScienceOn
17 Sun, C.G., 2004, Geotechnical Information System and Site Amplification Characteristics for Earthquake Ground Motions at Inland of the Korean Peninsula,Ph.D. Dissertation, Seoul National University