土木地質学より見た活断層の諸問題

概要

論文の詳細を見る
Active faults, recognized on topographical and geological evidenccs, are frequently found in civil engineering project area. Evaluation of the amount of displacement along the fault and the time of fault movement during the life time of the structures, and the selection of the design details to ensure safety against such possible fault displacement, are difficult problems. For evaluation of fault activity, geological studies must be carried a considerable distance from the proposal project area, a departure from recent past practice. Seismic records from the year AD416 to the recent are available in Japan. Areal and satellite photographs are useful to estimate the elongation and total amounts of dis placement of these faults. Seismic observation of small scale earthquakes (M<3) is useful to evaluate the fault activities. It is desirable that geologist suggests his consideration concerning with active fault with quantitative expression to civil engineer.
日本地質学会の論文
1976-03-25