Geotechnics for Sustainable Infrastructure Development pp 1093-1097 | Cite as
Geotechnical Information Construction Methods for Liquefaction Assessment
- 2.8k Downloads
The liquefaction is a phenomenon that the ground lost shear strength by the effective stress becoming 0 due to the rapidly built up excess pore water pressure when an earthquake acts on the ground. Liquefaction can be assessed by the factor of safety defined by the ratio of the cyclic resistance ratio (CRR) to the cyclic shear ratio (CSR), and the scale of liquefaction damage is assessed by Liquefaction Potential Index (LPI). The LPI can be determined by geotechnical information. However, the geotechnical information that can be obtained by in-situ tests or boring information have an issue of the representative of the target area. The issue of the representative is can be handled with geostatistical method. The kriging was used for the spatial interpolation. Therefore, this study proposes a construction method of geotechnical information database (DB) for determining the LPI with spatial interpolation technique.
Keywordsliquefaction liquefaction hazard map spatial interpolation Kriging
Unable to display preview. Download preview PDF.
- Idriss, I. M., and Boulanger, R. W. (2003). Relating Kα and Kσ to SPT blow count and to CPT tip resistance for use in evaluating liquefaction potential. In Proc. of the 2003 Dam Safety Conference (pp. 7–10).Google Scholar
- Idriss I. M. and Boulanger R. W. (2008). Soil liquefaction during earthquakes, EERI, Califonia, USA.Google Scholar
- Iwasaki, T., Tatsuoka, F., Tokida, K. I., and Yasuda, S. 1978,’A practical method for assessing soil liquefaction potential based on case studies at various sites in Japan.’ Proc., 2 nd Int. Conf. on Microzonation, San Francisco, 885–896.Google Scholar
- Lee, S. H., Park, D. H., Ha, J. G., and Kim, D. S. (2012). Verification of 2-Parameters Site Classification System and Site Coefficients (II)-Earthquake Records in Korea. Journal of the Korean Geotechnical Society, 28(3), 35–43.Google Scholar
- Matheron, G. (1967). Kriging or polynomial interpolation procedures. CIMM Transactions 70, 240–244.Google Scholar
- Ministry of Land, Infrastructure and Transport (MLIT) (2018), Foundation manual (in Korea).Google Scholar
- Song, Y. W., Chung, C. K., Park, K. H., and Kim, M. G. (2018). Assessment of liquefaction potential using correlation between shear wave velocity and normalized LPI on urban areas of Seoul and Gyeongju. Journal of The Korean Society of Civil Engineers, 38(2), 357–367.Google Scholar
- Skempton, A. W. (1986). Standard penetration test procedures and the effects in sands of overburden pressure, relative density, particle size, ageing and over consolidation. Geotechnique, 36(3), 425–447.Google Scholar
- Seed, H. B., Tokimatsu, K., Harder, L. F., and Chung, R. M. (1985). Influence of SPT procedures in soil liquefaction resistance evaluations. Journal of Geotechnical Engineering, 111(12), 1425–1445.Google Scholar
- The National Emergency Management Agency (NEMA) (2013), National earthquake risk map announcement, Seoul.Google Scholar