高密度震度調査にもとづく地域内震度予測式の構成 : 札幌市を例として

概要

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This paper proposes a simple but precise method to estimate the local differences of seismic intensity in an area of moderate-to-large city by an introduction of the questionnaire technique, a case study of which was performed in Sapporo city, Immediately after large earthquake which occurred off Urakawa, Hokkaido, on March 21, 1982, a seismic intensity survey by delivering 10,000 questionnaire sheets throughout Sapporo city was conducted and a high-precise isoseismal map was derived. By comparing with the geological data in the area it was found that the obtained intensities are well correlated with surface soil types and are in a good functional relation with soil layer thickness. Based upon this result an empirical equation for estimating seismic intensity at any point in Sapporo city was also derived. It is [numerical formula] where [numerical formula]
社団法人日本建築学会の論文
1985-02-28