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 language | English |
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Pages | 2440-2444 |
Number of pages | 5 |
DOIs | |
Publication status | Published - 2015 |
Event | 15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2015 - Fukuoka, Kyushu, Japan Duration: Nov 9 2015 → Nov 13 2015 |
Other
Other | 15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2015 |
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Country/Territory | Japan |
City | Fukuoka, Kyushu |
Period | 11/9/15 → 11/13/15 |
Keywords
- Earth-fill dam
- Flood simulation
- Overflow
- Reliability-based design
- Statistical rainfall model
ASJC Scopus subject areas
- Geotechnical Engineering and Engineering Geology
- Soil Science