5 LEM model with piles spacing dimensions. The model in Slide3 with the pile spacing dimensions is shown in Fig. 4 User-defined support reactions obtained from RSPile analysis. 3, where the pile is displaced 1.0 in along its entire length. The pile shear resistance against sliding is equal to the shear force from the capacity envelope at the intersection of the slip surface with the pile. The nonlinear pile capacity envelopes calculated by RSPile were used as inputs in Slide3 to determine user-defined supports. LEM analysis with Nonlinear Capacity Pile analysis 3 Lateral resistance envelope corresponding to 1.0 in of lateral soil displacement In this case, RSPile is used to generate the lateral resistance envelope corresponding to 1.0 inch of lateral soil displacement at various sliding depths along the pile, shown in Fig.
EQUILIBRIUM 3D SOFTWARE
The analysis of piles was carried out using RSPile software which conducts Finite Element analysis to examine the nonlinear capacity of piles. 2 Critical 3D failure region with Spencer FS=1.17, and sections A & B lower FS. Note that the FS in 2D is generally lower than the 3D FS (Stark and Ruffing 2017). Sections A & B were created within the 3D model to analyze the 2D results shown in the right of Fig. The experiment has identified a critical slip surface with Spencer FS = 1.17. The analysis results of the unsupported slope using LEM have been shown in Fig. Soil parameters for the pile analysis are outlined in Table 2.Īnalysis results and discussion Unreinforced slope model API Sand (Yellow), Sand (Red), and Sand Reese (Green) Nonlinear Capacity Piles shows multiple boreholes that were used to construct the material boundaries. To simulate the LEM analysis assumptions, the Janbu and Spencer methods were adopted. LEM model: existing soil layers and material properties are detailed in Table 1. It considers the capacity of the pile as being constant or non-linear the latter of which is determined using a separate Finite Element (FE) software for pile analysis. This study provides insights into a 3D Limit Equilibrium analysis of a landslide model supported with piles. The limit equilibrium method (LEM) and finite element method (FEM) are the two most reliable approaches used by researchers and engineers.
Taking preventative measures against slope failure is crucial to minimize casualties and damage to infrastructure. Shedding light on the preventative measures against slope failure due to stressesĭetermining the accuracy of slope stability analysis has been a primary subject of interest in the geotechnical field for several decades now.
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