Introduction of Plastic Block Method in the Upper Bound Limit Analysis of Soil Stability Problems

Stability analysis of vegetated slopes under steady transpiration state considering tensile strength cut-off

“…Many natural slopes are covered with vegetation, which can change soil suction and shear strength affect the slope stability (Greenwood et al 2004;Rees and Ali 2012;Ni et al 2018;Wu et al 2022) Slope stability analysis is a classical issues of geotechnical engineering (Botero et al 2020;Khorsandiardebili and Ghazavi 2021). There are three methods to analyze slope stability: limit equilibrium methods (LEMs) (Hammouri et al 2008;Zhou and Cheng 2013), limit analysis methods (LAMs) (Li et al 2021;Khoshzaban et al 2021), and numerical simulation methods (NSMs) (Dyson and Tolooiyan 2019; Meng et al 2019). LEMs are based on the static equilibrium condition of the slip body and can be divided into slice and global analysis methods (Sun et al 2016;Shinoda and Miyata 2019).…”

Calculation method for reinforcement spacing of bilaterally wrapped reinforced embankments under seismic force

“…In particular, the bilaterally wrapped reinforced Earth embankment is less involved in existing reports. In this regard, we propose a calculation method for vertical spacing among reinforcements in the bilaterally wrapped embankment based on the upper bound limit analysis method (Chen, 1975;Yang, 2007;Khoshzaban et al, 2021). The formula of external force power and internal energy consumption rate of the reinforced embankment under strip surcharge is derived, and the relationship between the overall stability of the embankment and the vertical spacing is determined further via the shear strength reduction method (Chen et al, 2014).…”