岐阜県安八郡海津郡における常時微動特性と地盤特性について

概要

論文の詳細を見る
The purpose of this paper is to investigate the relation between microtremor and geological conditions. Some survey points on the right bank of the Nagara River have predominant frequency of 5cps. To inquire into the distribution, in Moribe the survey points were set at the crossing of the lattice with 5m intends in the square of 25m. 9points with 5cps predominant frequncy were found in the south-west part of the square. The predominat frequency of 5cps is one of the characteristics of the natural levee zone. The three basic ideas on the oscilation properties in Wanouchi, Hirata and Kaizu are as follows: 1) Notable diffrence is recognized on the boundary of natural levee areas and delta areas. 2) This time the measured areas are devided into five areas according to the figure of fourier spectrum. 3) The southern part of the measured areas is a delta which the overflow of the three Kiso Rivers formed. The result of the microtremer makes it clear that there is one block along the Ibi River and another along the Nagara River, and that the deposits of each river are different from each other.
岐阜工業高等専門学校の論文
1992-03-02