Development of evaluation technique of seismic resistance for earth fill dam using elastic wave velocity monitoring

2015 Fiscal Year Final Research Report

• Project/Area Number: 25871097
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Rural environmental engineering/Planning; Geotechnical engineering
• Research Institution: National Agriculture and Food Research Organization
• Principal Investigator: UENO Kazuhiro 国立研究開発法人農業・食品産業技術総合研究機構, 農村工学研究部門施設工学研究領域, 研究員 (60560167)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 非排水繰返し載荷 / 弾性波速度 / 乾燥密度 / 細粒分 / 不規則荷重 / 累積損傷度理論

Outline of Final Research Achievements

Considering the behavior of earth fill dams observed during small and medium scale earth quakes is effective to evaluate the seismic resistance of earth fill dams during large scale earth quakes with a high degree of accuracy. This study aimed to clarify the detail characteristics of change in the elastic wave velocity during undrained cyclic loading. As a result, it was clarified that the reduction ratio of elastic wave velocity become larger with a decrease in density of specimen. Furthermore, prediction of change in the elastic wave velocity during undrained cyclic loading when specimens subjected to irregular loading was attempted by using the cumulative damage concept.

Free Research Field

地盤工学