TY - GEN
T1 - Three-dimensional behavior modelling of a pile-stabilized slope and analysis under vertical seismic loading
AU - Chen, J. W.
AU - Chen, C. Y.
AU - Lin, Y. S.
N1 - Publisher Copyright:
© 2019 Associazione Geotecnica Italiana, Rome, Italy.
PY - 2019
Y1 - 2019
N2 - The study used the finite difference analysis for a piled slope stability analysis under vertical seismic loading. The parameters used for the pile–soil–slope system were studied and the positions of the piles on the slope were analyzed for slope stability. The strength reduction method was used for the slope stability analysis in the static state. The formation of the continuous plastic zone in the slope was used to gauge the failure state of the slope under different seismic conditions. Three schemes were designed for the analysis of the piles located in the upslope, middle, and toe of the slope. The results of the analysis indicated that the net pile space is a key parameter for the safety factor (FS) of a slope. The functional behavior of the piles was identified to a single pile from a net space of over 3 m. The FS of the slope was higher for the pile located in the middle of the slope than for the pile located in the upslope and lowest for the pile located at the toe. These FS changes were attributed to the failure modes of the piled slope. A block failure mode was observed for the pile in the middle of the slope. The seismic analysis indicated that the vertical seismic loading resulted in smaller FS for the piled slope than in the horizontal seismic loading. Therefore, the seismic design of a slope subjected to the vertical direction of seismic shaking should account for this smaller FS value.
AB - The study used the finite difference analysis for a piled slope stability analysis under vertical seismic loading. The parameters used for the pile–soil–slope system were studied and the positions of the piles on the slope were analyzed for slope stability. The strength reduction method was used for the slope stability analysis in the static state. The formation of the continuous plastic zone in the slope was used to gauge the failure state of the slope under different seismic conditions. Three schemes were designed for the analysis of the piles located in the upslope, middle, and toe of the slope. The results of the analysis indicated that the net pile space is a key parameter for the safety factor (FS) of a slope. The functional behavior of the piles was identified to a single pile from a net space of over 3 m. The FS of the slope was higher for the pile located in the middle of the slope than for the pile located in the upslope and lowest for the pile located at the toe. These FS changes were attributed to the failure modes of the piled slope. A block failure mode was observed for the pile in the middle of the slope. The seismic analysis indicated that the vertical seismic loading resulted in smaller FS for the piled slope than in the horizontal seismic loading. Therefore, the seismic design of a slope subjected to the vertical direction of seismic shaking should account for this smaller FS value.
UR - https://www.scopus.com/pages/publications/85081182068
UR - https://www.scopus.com/pages/publications/85081182068#tab=citedBy
M3 - Conference contribution
AN - SCOPUS:85081182068
SN - 9780367143282
T3 - Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions- Proceedings of the 7th International Conference on Earthquake Geotechnical Engineering, 2019
SP - 1723
EP - 1730
BT - Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions- Proceedings of the 7th International Conference on Earthquake Geotechnical Engineering, 2019
A2 - Silvestri, Francesco
A2 - Moraci, Nicola
PB - CRC Press/Balkema
T2 - 7th International Conference on Earthquake Geotechnical Engineering, ICEGE 2019
Y2 - 17 January 2019 through 20 January 2019
ER -