Numerical Modeling of Pullout Capacity of Screw Piles Under Seismic Loading in Layered Soil

2021 ◽  
Author(s):  
Mahdi O. Karkush ◽  
Ahmed D. Alkaby
Keyword(s):  
Numerical Modeling ◽  
Seismic Loading ◽  
Layered Soil ◽  
Pullout Capacity

scholarly journals Adsorption of Dye on a Tunisian Unsaturated Layered Soil: Physical and Numerical Modeling

2020 ◽  
Vol 53 (8) ◽  
pp. 1132-1141
Author(s):  
A. Jedidi ◽  
A. Kraiem ◽  
S. Dardouri ◽  
M. Marcoux ◽  
J. Sghaier
Keyword(s):  
Numerical Modeling ◽  
Layered Soil

scholarly journals Numerical modeling of solute transport in deformable unsaturated layered soil

2017 ◽  
Vol 10 (3) ◽  
pp. 184-196 ◽  
Author(s):  
Sheng Wu ◽  
Dong-sheng Jeng
Keyword(s):  
Numerical Modeling ◽  
Solute Transport ◽  
Layered Soil

scholarly journals Numerical modeling of a tunnel in jointed rocks subjected to seismic loading

2019 ◽  
Vol 4 (2) ◽  
pp. 133-146 ◽  
Author(s):  
Malavika Varma ◽  
V.B. Maji ◽  
A. Boominathan
Keyword(s):  
Numerical Modeling ◽  
Seismic Loading ◽  
Jointed Rocks

scholarly journals NUMERICAL MODELING OF UNSATURATED LAYERED SOIL FOR RAINFALL-INDUCED SHALLOW LANDSLIDES

2017 ◽  
Vol 25 (4) ◽  
pp. 329-341 ◽  
Author(s):  
Chih-Yu LIU ◽  
Cheng-Yu KU ◽  
Jing-En XIAO ◽  
Chi-Chao HUANG ◽  
Shih-Meng HSU
Keyword(s):  
Numerical Modeling ◽  
Slope Stability ◽  
Pore Water ◽  
Numerical Solutions ◽  
Pore Water Pressure ◽  
Water Pressure ◽  
Characteristic Curve ◽  
Shallow Landslides ◽  
Layered Soil ◽  
Richards Equation

In this paper, a pioneer study on numerical modeling of rainfall-induced shallow landslides in unsaturated layered soil using the variably saturated flow equation is presented. To model the shallow landslides, the infinite slope stability analysis coupled with the hydrological model with the consideration of the fluctuation of time-dependent pore water pressure and Gardner equation for soil water characteristic curve was developed. A linearization process for the nonlinear Richards equation to deal with groundwater flow in unsaturated layered soil is derived using the Gardner model. To solve one-dimensional flow in the unsaturated zone of layered soil profiles, flux conservation and the continuity of pressure potential at the interface between two consecutive layers are considered in the numerical discretization of the finite difference method. The validity of the proposed model is established in three numerical problems by comparing the results with the analytical and other numerical solutions. Application examples have also been conducted. Obtained results demonstrate that the fluctuation of pore water pressure in unsaturated layered soil dominates slope stability of landslides and the lowest factor of safety may occur at the interface between two consecutive layers. The findings observed in this study are a fundamental contribution to environmental protection engineering for landslides in areas with higher occurrence and vulnerability to extreme precipitation.

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