ABSTRACT
Erosion in dams, particularly internal erosion, has consistently been a significant concern that threatens the integrity and safety of earthen dams. This study investigates the efficacy of jute geotextile and polypropylene geotextile (PP-geotextile) in mitigating soil erosion. Hole Erosion Tests (HETs) were conducted on clayey soil at varied moisture contents to examine erosion. A layer of geotextiles was placed at the downstream face of the sampler to assess its influence on mitigating erosion. It was observed that soil exhibited the lowest erosion rate value at OMC. The inclusion of jute geotextile and PP-geotextile at the downstream side of the sample reduced erosion rates by 96.85% and 97.10%, respectively. Additionally, the ImageJ software was employed to analyze variations in hole diameter. More than 40% reduction in the surface hole diameter was observed in the presence of both the geotextiles. Overall, jute geotextile and PP-geotextile performance was similar in arresting soil erosion.
