Reliability-based design of earth-fill dams based on the spatial distribution of strength parameters

被引:10
|
作者
Nishimura, Shin-ichi [1 ]
Murakami, Akira [2 ]
Matsuura, Ken [3 ]
机构
[1] Okayama Univ, Grad Sch Environm Sci, Okayama, Japan
[2] Kyoto Univ, Grad Sch Agr, Kyoto, Japan
[3] Kawasaki Plant Syst Co Ltd, Kobe, Hyogo, Japan
关键词
reliability-based design; geostatistics; Monte Carlo method; spatial variability; dam safety;
D O I
10.1080/17499511003676655
中图分类号
P5 [地质学];
学科分类号
0709 ; 081803 ;
摘要
In this study, a reliability-based design for the improvement of earth-fill dams is presented and the effect of improvement of the embankment for safety against earthquakes is evaluated. An inclined core is considered as the means of improvement for the earth-fill embankment. First, the spatial distribution of the strength of the earth-fill materials is discussed, following which the damage level of earth-fill dams is evaluated, using the elastoviscoplastic finite element method (EVP-FEM). By averaging the resulting damage level with the Monte Carlo method, the expected failure costs are calculated. Finally, the effect of this improvement is evaluated by comparing the expected total costs for the original and the restored states of the embankment.
引用
收藏
页码:140 / 147
页数:8
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