The current work investigated the Seismic behavior of a bamboo grid reinforced slope, which utilized 2D numerical analyses using the finite element program MIDAS GTS NX (340) 2023 v1.1. For this investigation, two individual ground motion and one combined ground motions are considered in the nonlinear time history analysis of the slope. The comparison was made to analyze the lateral displacement and settlement for different slope parts. The top five bamboo grids are more affected due to the development of horizontal and vertical membrane forces and effective pressure. The reinforced slope under combined ground motion is more stable as compared to GM1 and GM2. The failure pattern observed at the face portion suggests that the slope is more prone to sliding and instability in this area. The introduction of combined GM results in a substantial reduction in horizontal displacement. Specifically, the percentage reduction of horizontal displacement for combined GM is 57.75% compared to GM1, and an even more impressive 71.13% reduction compared to GM2. The presence of GM1 significantly affects the horizontal displacement of both the face and body portions of the slope.

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Seismic Stability Analysis of a Bamboo Grid Reinforced Slope Based on Non-linear Time History Analysis

  • Rasmiranjan Samal,
  • Smrutirekha Sahoo

摘要

The current work investigated the Seismic behavior of a bamboo grid reinforced slope, which utilized 2D numerical analyses using the finite element program MIDAS GTS NX (340) 2023 v1.1. For this investigation, two individual ground motion and one combined ground motions are considered in the nonlinear time history analysis of the slope. The comparison was made to analyze the lateral displacement and settlement for different slope parts. The top five bamboo grids are more affected due to the development of horizontal and vertical membrane forces and effective pressure. The reinforced slope under combined ground motion is more stable as compared to GM1 and GM2. The failure pattern observed at the face portion suggests that the slope is more prone to sliding and instability in this area. The introduction of combined GM results in a substantial reduction in horizontal displacement. Specifically, the percentage reduction of horizontal displacement for combined GM is 57.75% compared to GM1, and an even more impressive 71.13% reduction compared to GM2. The presence of GM1 significantly affects the horizontal displacement of both the face and body portions of the slope.