波の到来方向に基づく宅地における局所的軟弱地盤位置の同定

概要

論文の詳細を見る
A method is presented for identification of local soft ground position based on measurement of the angle between arrival wave and a vibration source. Vertical ground motion is measured using a circular array of six sensors. The angle between the arrival wave and the source can be determined, based on F-k spectrum analysis of the data. To examine the validity of the proposed method, field investigations were performed. It is shown that (1) The arrival wave angles tend to fluctuate wildly in case that local soft ground locates between the sensor array and the source and the wavelength is about 1.5 times the soft ground depth; (2) The arrival wave angles tend to point in the direction of the source in case that ground between the sensor array and the source is uniform.
社団法人日本建築学会の論文
2006-02-28