MICROZONATION FOR SEISMIC GEOTECHNICAL HAZARDS AND ACTUAL DAMAGE DURING THE 2005 FUKUOKA-KEN SEIHO-OKI EARTHQUAKE

SOILS AND FOUNDATIONS

SUSUMU YASUDA¹  HIDEO NAGASE³  YUTAKA TANOUE² 

[1] Department of Civil and Environmental Engineering, Tokyo Denki University;Kiso-jiban Consultants Co., Ltd.;Department of Civil and Architectural Engineering, Kyushu Institute of Technology

关键词: earthquake damage;    geotechnical hazard;    liquefaction;    microzonation;    slope failure;    strong shaking;    (IGC: E8/D7);   

DOI  :  10.3208/sandf.51.215

学科分类：建筑学

来源: Japanese Geotechnical Society / Jiban Kogakkai

【 摘 要 】

References(14)Cited-By(1)The 2005 Fukuoka-ken Seiho-oki earthquake caused damage to structures due to liquefaction, slope failure and strong shaking in Fukuoka City. One of the authors had conducted microzonation for liquefaction, slope failure and strong shaking about 17 years before the earthquake. After the earthquake, the authors compared the zoning map with the actual damage. The results showed that liquefied sites coincided fairly well with predicted zones in the reclaimed lands. However, they were slightly different in a big sand spit named Uminonakamichi. Failure occurred at several slopes inside the predicted areas, while damage to buildings occurred due to strong shaking along the Kego Fault. The damaged area was slightly different from the predicted area. Furthermore, a liquefaction analysis was conducted and the results of this analysis were compared with the results of microzonation in 1988. In this paper, the authors discuss the validity of microzonation based on this comparison.

【 授权许可】

Unknown