TY - JOUR
T1 - Prediction of long-term settlement and evaluation of pore water pressure using particle filter
AU - Shibata, Toshifumi
AU - Shuku, Takayuki
AU - Murakami, Akira
AU - Nishimura, Shin ichi
AU - Fujisawa, Kazunori
AU - Hasegawa, Noritaka
AU - Nonami, Satoshi
N1 - Funding Information:
The valuable suggestions and comments by Mr. Yoshiki Takahashi of Kyoeidoboku Corporation are gratefully acknowledged. This work was supported by Grant-in-Aid for Scientific Research (A) Grant Number 23248040 (Representative: Akira Murakami) from the Japan Society for the Promotion of Science (JSPS) KAKENHI.
Funding Information:
The valuable suggestions and comments by Mr. Yoshiki Takahashi of Kyoeidoboku Corporation are gratefully acknowledged. This work was supported by Grant-in-Aid for Scientific Research (A) Grant Number 23248040 (Representative: Akira Murakami) from the Japan Society for the Promotion of Science (JSPS) KAKENHI .
Publisher Copyright:
© 2018
PY - 2019/2
Y1 - 2019/2
N2 - The present paper showcases a numerical simulation of the long-term behavior of a foundation and an evaluation of the pore water pressure on Kobe Airport Island. To calculate the behavior of the ground and the pore water pressure, a numerical analysis is implemented using an elasto-plastic FEM for soil–water coupled problems with the Cam-clay model. However, numerical difficulties still remain in estimating the elasto-plastic parameters because of the nonlinearity of the materials and the uncertainty of the initial/boundary conditions. To account for these difficulties, a data assimilation technique, the particle filter, is adopted to identify the soil parameters using field measurements. The numerical simulation is carried out with the identified parameters to predict the long-term settlement and to evaluate the pore water pressure of the improved ground for two cases of boundary conditions. The outcomes show a good agreement with the direct measurements of the long-term settlement and the observed pore water pressure.
AB - The present paper showcases a numerical simulation of the long-term behavior of a foundation and an evaluation of the pore water pressure on Kobe Airport Island. To calculate the behavior of the ground and the pore water pressure, a numerical analysis is implemented using an elasto-plastic FEM for soil–water coupled problems with the Cam-clay model. However, numerical difficulties still remain in estimating the elasto-plastic parameters because of the nonlinearity of the materials and the uncertainty of the initial/boundary conditions. To account for these difficulties, a data assimilation technique, the particle filter, is adopted to identify the soil parameters using field measurements. The numerical simulation is carried out with the identified parameters to predict the long-term settlement and to evaluate the pore water pressure of the improved ground for two cases of boundary conditions. The outcomes show a good agreement with the direct measurements of the long-term settlement and the observed pore water pressure.
KW - Data assimilation
KW - Inverse analysis
KW - Long-term prediction
KW - Particle filter
KW - Soil-water coupled FEM
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U2 - 10.1016/j.sandf.2018.09.006
DO - 10.1016/j.sandf.2018.09.006
M3 - Article
AN - SCOPUS:85056730872
VL - 59
SP - 67
EP - 83
JO - Soils and Foundations
JF - Soils and Foundations
SN - 0038-0806
IS - 1
ER -