Method of Evaluating the Life Cycle Cost of Small Earth Dams Considering the Risk of Heavy Rainfall and Selection Method of the Optimum Countermeasure

• HORI Toshikazu

  Department of Geotechnical and Hydraulic Engineering, National Institute for Rural Engineering, National Agriculture and Food Research Organization

• MOHRI Yoshiyuki

  Department of Geotechnical and Hydraulic Engineering, National Institute for Rural Engineering, National Agriculture and Food Research Organization

• MATSUSHIMA Kenichi

  Department of Geotechnical and Hydraulic Engineering, National Institute for Rural Engineering, National Agriculture and Food Research Organization

• ARIYOSHI Mitsuru

  Department of Geotechnical and Hydraulic Engineering, National Institute for Rural Engineering, National Agriculture and Food Research Organization

Bibliographic Information

Other Title

• 豪雨リスクを考慮したため池のライフサイクルコスト算定手法と最適な豪雨対策の選定手法
• ゴウウ リスク オ コウリョ シタ タメイケ ノ ライフサイクルコスト サンテイ シュホウ ト サイテキ ナ ゴウウ タイサク ノ センテイ シュホウ

Abstract

In recent years the increase in the number of heavy rainfall occurrences such as through unpredictable cloudbursts have resulted in the safety of the embankments of small earth dams needing to be improved. However, the severe financial condition of the government and local autonomous bodies necessitate the cost of improving them to be reduced. This study concerns the development of a method of evaluating the life cycle cost of small earth dams considered to pose a risk and in order to improve the safety of the downstream areas of small earth dams at minimal cost. Use of a safety evaluation method that is based on a combination of runoff analysis, saturated and unsaturated seepage analysis, and slope stability analysis enables the probability of a dam breach and its life cycle cost with the risk of heavy rainfall taken into account to be calculated. Moreover, use of the life cycle cost evaluation method will lead to the development of a technique for selecting the method of the optimal improvement or countermeasures against heavy rainfall.

Journal

• Transactions of The Japanese Society of Irrigation, Drainage and Rural Engineering

  Transactions of The Japanese Society of Irrigation, Drainage and Rural Engineering 78 (6), 493-503, 2010

  The Japanese Society of Irrigation, Drainage and Rural Engineering

Keywords

• Life cycle cost
• Small earth dam
• Heavy rainfall
• Disaster measures
• Probability of failure

Details

• CRID: 1390282680262448000
• NII Article ID: 10027756199
• NII Article ID: 130004555114
• NII Book ID: AA12240517
• DOI: 10.11408/jsidre.78.493
• ISSN: 18847242
• ISSN: 18822789
• NDL BIB ID: 10957629
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I10957629
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed