Development of total risk evaluation system for the agricultural infrastructures by use of evolutional system reliability theory

2015 Fiscal Year Final Research Report

• Project/Area Number: 25292143
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Rural environmental engineering/Planning
• Research Institution: Okayama University
• Principal Investigator: Nishimura Shinichi 岡山大学, 環境管理センター, 教授 (30198501)
• Co-Investigator(Kenkyū-buntansha): FUJISAWA Kazunori 京都大学, 大学院農学研究科, 准教授 (30510218) ; SHUKU Takayuki 岡山大学, 大学院・環境生命科学研究科, 助教 (70625053) ; MIZUMA Keiji 独立行政法人農業・食品産業技術総合研究機構, 施設工学研究領域, 研究員 (10645360) ; SHIBATA Toshifumi 岡山大学, 大学院・環境生命科学研究科, 講師 (30342546)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: リスク評価 / 地震 / 豪雨 / 農業生産基盤施設 / ため池 / サウンディング試験 / 表面波探査 / 信頼性理論

Outline of Final Research Achievements

In this research, the risk evaluation system has been developed for the maintenance of the agricultural infrastructures such as dams, other irrigation facilities and polder dikes against the severe earthquakes and the heavy rains. The concrete outcomes are as follows. 1) The model test system has been developed to study the liquefaction behavior of the embankment structures, and the mechanism of the liquefaction inside the structures has been clarified. 2) The analytical tools to evaluate the stability against the earthquakes, and the heavy rains, and evaluate the dam breaches and floods, have been developed. 3) The sounding tests and the physical exploration tests have been proposed and their effectiveness has been verified by applying the tests to the in-situ problems. 4) The total risk evaluation system for the optimum maintenance of the agricultural infrastructures has been proposed.

Free Research Field

地域環境工学・計画学