Stability evaluation of bio-treated slope under rainfall conditions based on numerical simulation
Stability evaluation of bio-treated slope under rainfall conditions based on numerical simulation
Rainfall infiltration is the main trigger of slope failure. Currently, the approach known as biomineralization technology has been widely studied for the purpose of rainfall erosion resistance. However, the research on the effectiveness of reinforcement by biomineralization technology on slope stability is extremely limited. In this study, the finite element method (FEM) was used to simulate the rainfall infiltration in the slope and study the effect of biotreatment on the rainwater infiltration process. The numerical simulation results show that rainwater infiltration will lead to the reduction of slope stability. The increase of pore water pressure caused by rainwater infiltration will reduce the shear strength of soil. Due to the decrease of permeability after biotreatment, the surface biotreatment measures can effectively reduce the rainwater infiltration. Compared with original slope, the stability of slope reinforced by surface treatment and bio-pile is significantly enhanced. This research lays a solid foundation for the application of slope reinforcement by biomineralization technology.
Y. Chen; Hemanta Hazarika; Yuke Wang
9th International Congress on Environmental Geotechnics (ICEG2023)
Biogeotechnics and Bioremediation
Slope Stabilization, Biogeotechnical Engineering, Numerical & Constitutive Modeling
https://doi.org/10.53243/ICEG2023-353
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