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 |
|---|---|
| Title of host publication | 15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2015: New Innovations and Sustainability |
| Publisher | Asian Regional Conference on Soil Mechanics and Geotechnical Engineering |
| 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 |
|---|---|
| Country | Japan |
| City | Fukuoka, Kyushu |
| Period | 11/9/15 → 11/13/15 |
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Keywords
- Earth-fill dam
- Flood simulation
- Overflow
- Reliability-based design
- Statistical rainfall model
ASJC Scopus subject areas
- Geotechnical Engineering and Engineering Geology
- Soil Science
Cite this
Reliability-based design for earth-fill dams against heavy rains. / Nishimura, Shin-ichi; Shuku, Takayuki; Shibata, Toshifumi; Fujisawa, Kazunori.
15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2015: New Innovations and Sustainability. Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, 2015. p. 2440-2444.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Reliability-based design for earth-fill dams against heavy rains
AU - Nishimura, Shin-ichi
AU - Shuku, Takayuki
AU - Shibata, Toshifumi
AU - Fujisawa, Kazunori
PY - 2015
Y1 - 2015
N2 - 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.
AB - 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.
KW - Earth-fill dam
KW - Flood simulation
KW - Overflow
KW - Reliability-based design
KW - Statistical rainfall model
UR - http://www.scopus.com/inward/record.url?scp=84971450009&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84971450009&partnerID=8YFLogxK
U2 - 10.3208/jgssp.JPN-044
DO - 10.3208/jgssp.JPN-044
M3 - Conference contribution
AN - SCOPUS:84971450009
SP - 2440
EP - 2444
BT - 15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2015: New Innovations and Sustainability
PB - Asian Regional Conference on Soil Mechanics and Geotechnical Engineering
ER -