Infiltration and Failure Behavior of an Unsaturated Soil Slope under Artificial Rainfall Model Experiments

Slope disasters often include soil erosion and shallow landslides. These types of slope failure can occur in unsaturated soil. In this study, artificial rainfall is applied to a compacted laboratory investigate the effects intensity, initial moisture content relative compaction on infiltration behavior an subjected infiltration. Soil probes installed were used monitor during experiment. Test results show that saturation at toe was observed be higher than other areas following onset rainfall. Gradually, advanced towards crest, resulting formation wetting band along surface. With increasing duration, progressed further downwards slope. The began crest junction slope, primary cause from high-intensity most significant variable affecting compaction, followed by During experiment, low hydraulic conductivity saturated caused become surface runoff, which minimized impact intensity behavior. Specifically, optimal 90 R.C. only 7.041 × 10-5 cm/sec or 2.53 mm/h, much lower intensities 80 mm/h 160 mm/h. addition, contours facilitated visualization quantification slopes, enabling more detailed analysis experimental results. help understand slopes under conditions aid designing effective stabilization measures prevent minimize risk