TY - GEN
T1 - Effect of Permeability Random Field on Piping Risk of a River Dike
AU - Nishimura, Shin Ichi
AU - Kubota, Go
AU - Ohashi, Ryota
AU - Shibata, Toshifumi
AU - Shuku, Takayuki
N1 - Publisher Copyright:
© ASCE.
PY - 2023
Y1 - 2023
N2 - The piping risks of river dikes are discussed in the present study. It is shown how the cone penetration test (CPTU) is used to obtain detailed information on the inside of dikes or underneath them. Since the CPTU makes spatially short-interval tests possible, the spatial variability of the soil properties can be identified. In this study, CPTU results are transformed into permeability based on the CPTU model tests, which have been conducted in the laboratory by using the CPTU mold. The permeability is spatially interpolated by the geostatistical simulation method and then applied to a 3-D finite element seepage analysis. Finally, the locations at high risk for piping inside a river dike in Japan are clarified through the seepage analysis.
AB - The piping risks of river dikes are discussed in the present study. It is shown how the cone penetration test (CPTU) is used to obtain detailed information on the inside of dikes or underneath them. Since the CPTU makes spatially short-interval tests possible, the spatial variability of the soil properties can be identified. In this study, CPTU results are transformed into permeability based on the CPTU model tests, which have been conducted in the laboratory by using the CPTU mold. The permeability is spatially interpolated by the geostatistical simulation method and then applied to a 3-D finite element seepage analysis. Finally, the locations at high risk for piping inside a river dike in Japan are clarified through the seepage analysis.
UR - http://www.scopus.com/inward/record.url?scp=85182327838&partnerID=8YFLogxK
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U2 - 10.1061/9780784484999.006
DO - 10.1061/9780784484999.006
M3 - Conference contribution
AN - SCOPUS:85182327838
T3 - Geotechnical Special Publication
SP - 54
EP - 63
BT - Geotechnical Special Publication
A2 - Ching, Jianye
A2 - Najjar, Shadi
A2 - Wang, Lei
PB - ASCE
T2 - Geo-Risk Conference 2023: Advances in Modeling Uncertainty and Variability
Y2 - 23 July 2023 through 26 July 2023
ER -