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道路盛土の耐震性評価のためには盛土のある各地点における地震動を適切に設定する必要がある今日までに様々な地震動設定手法が提案されていることを踏まえると盛土の耐震性評価に適した地震動の設定手法を議論しておくことは有用であるそこで本稿では委員会活動の一環として地震工学の研究者・技術者を対象にアンケート調査を実施した結果について報告するアンケートの内容は種々の地震動設定手法の長所・短所についての技術者の認識の実態と著者らが提案している常時微動計測結果により線状構造物である道路盛土をゾーニングする方法を実務に適用する際の課題である The method to determine the input strong ground motion is a key factor in the seismic performance assessment of road embankments. However, the procedure to choose the method is dependent on the experience and capability of the engineers. In this study, a questionnaire survey to 83 researchers and engineers of the earthquake engineering field in Japan is conducted to reveal their recognition on the features for various earthquake motion determination method. The procedure to conduct microtremor measurement for input strong motion determination and zoning judgement based on H/V spectrum obtained by microtremor measurements are also investigated. The results of the questionnaire are useful for a reference in practical earthquake motion determination for road embankments

A QUESTIONARY SURVEY ON THE CHOICE OF EARTHQUAKE MOTION DETERMINATION METHOD FOR ROAD EMBANKMENTS