Reliability-based design for earth-fill dams against heavy rains

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

To mitigate the disasters of decrepit earth-fill dams, improvement work is conducted. Since there is a recent demand for low-cost improvements, the development of a design method for optimum improvement work at a low cost is the final objective of this research. The reliability-based design approach is discussed as such a design method. Heavy rains are the most serious events for aged fill-dams, and sometimes overflows leading to breaching occur. From the estimated probability of overflow, the probability of submergence in the downstream is estimated for the reliability-based design. The remarkable point in this paper is that the probability of occurrences of heavy rains and the uncertainty of the soil properties are simultaneously considered for the design. Considering the disaster loss, the risk of submergence could be assessed.

Original languageEnglish
Title of host publication15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2015: New Innovations and Sustainability
PublisherAsian Regional Conference on Soil Mechanics and Geotechnical Engineering
Pages2440-2444
Number of pages5
DOIs
Publication statusPublished - 2015
Event15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2015 - Fukuoka, Kyushu, Japan
Duration: Nov 9 2015Nov 13 2015

Other

Other15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2015
CountryJapan
CityFukuoka, Kyushu
Period11/9/1511/13/15

Keywords

  • Earth-fill dam
  • Flood simulation
  • Overflow
  • Reliability-based design
  • Statistical rainfall model

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Soil Science

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  • Cite this

    Nishimura, S., Shuku, T., Shibata, T., & Fujisawa, K. (2015). Reliability-based design for earth-fill dams against heavy rains. In 15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2015: New Innovations and Sustainability (pp. 2440-2444). Asian Regional Conference on Soil Mechanics and Geotechnical Engineering. https://doi.org/10.3208/jgssp.JPN-044