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<p>Generally, the stability of slopes is evaluated using the limit equilibrium method, finite element method, and physical model testing (n<i>g</i>). However, the conventional 1<i>g</i> experimental setup used for the simulation of slope failure lacks the capability to replicate the natural failure process of slopes; additionally, it is not able to measure the large deformations that occur in slope failure, such as landslides. In the present study, an experimental approach of gradual tilting of the tank is presented, which allows the slope to fail due to gravity loading without applying any external load or rainfall simulation. The failure of the finite slope is studied using two-sized experimental setups to study the scale effect. The digital image correlation (DIC) technique is used to quantify the displacements of soil particles and to evaluate the evolution of the finite slope failure. The plane strain condition is achieved in the experimental simulations of the finite slope failure. Lastly, the simulation of progressive failure is also demonstrated using this experimental approach. The present study can be used to understand the natural process of slope failure, assess slope stability using the DIC technique, and improve slope monitoring devices.</p>

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An Experimental Approach to Simulate Large Scale 1g Finite Slope Failure

  • 期刊论文

  • 发表日期：

    2025年5月29日

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  • Kritesh Chouhan,
  • Jitesh Chavda

摘要

Generally, the stability of slopes is evaluated using the limit equilibrium method, finite element method, and physical model testing (ng). However, the conventional 1g experimental setup used for the simulation of slope failure lacks the capability to replicate the natural failure process of slopes; additionally, it is not able to measure the large deformations that occur in slope failure, such as landslides. In the present study, an experimental approach of gradual tilting of the tank is presented, which allows the slope to fail due to gravity loading without applying any external load or rainfall simulation. The failure of the finite slope is studied using two-sized experimental setups to study the scale effect. The digital image correlation (DIC) technique is used to quantify the displacements of soil particles and to evaluate the evolution of the finite slope failure. The plane strain condition is achieved in the experimental simulations of the finite slope failure. Lastly, the simulation of progressive failure is also demonstrated using this experimental approach. The present study can be used to understand the natural process of slope failure, assess slope stability using the DIC technique, and improve slope monitoring devices.