Tensile Force Distribution of Geogrid Reinforced BBMSE Wall: Numerical Analysis and Model Study—Prediction by ANFIS

Back-to-back mechanically stabilized earth walls are a common type of reinforced wall. These are used as approach embankments for flyovers and bridges. In the current study, in a laminar box, reduced-scale models of BBMSE walls reinforced with geogrid layers were built. A pneumatic-controlled actuator was used to apply the load. LVDTs, strain gauges and earth pressure sensors were used to instrument the model. Modular block deformations and tensile force distribution of geogrid were represented to assess the performance of the BBMSE walls. Overlapping lengths of the reinforcements were varied, and analyses were carried out. Finite element analysis was carried out to validate the model tests. The results of the numerical analyses were in good agreement with the model tests carried out. A prediction study was also carried out using an adaptive neuro-fuzzy inference system (ANFIS), which is an AI predictive model. The coefficient of determination (R2) and root-mean-square error were determined to evaluate the model.