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<p>The research focused on a poorly graded sand with clay and gravel (SP-SC) soil treated with biosolid compost blankets vegetated with a 3B Slope mix to reduce slope deformation under dynamic loading conditions. Small-scale shake table tests were conducted on slopes under dry, saturated, and partially saturated conditions. Results showed that, without applying compost blankets, the slope exhibited no deformation under partially saturated conditions up to a frequency of 4.5&#xa0;Hz, with a moisture content of 20.06 ± 1.42%. In contrast, saturated slopes without compost blankets, with a moisture content of 28.43 ± 1.67%, experienced complete failure within 18&#xa0;s at a frequency of 3.5&#xa0;Hz. The study found that compost blankets effectively reduced deformation under dynamic loading, especially under partially saturated conditions. The findings suggest that compost blankets can help retain moisture content and enhance slope stability under dynamic loading, making them an effective solution for erosion control and slope stabilization in environments subjected to seismic and traffic-induced vibrations. However, further large-scale prototype models with rigorous instrumentations are necessary to explore the long-term, full-scale impact of root development on slope stability and deformation.</p>

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Impact of vegetated compost blankets on reducing slope deformation in small-scale shake table tests

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年7月11日

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  • Seyed Armin Motahari Tabari,
  • Naomi Wertz,
  • Teresa J. Cutright,
  • Nariman Mahabadi

摘要

The research focused on a poorly graded sand with clay and gravel (SP-SC) soil treated with biosolid compost blankets vegetated with a 3B Slope mix to reduce slope deformation under dynamic loading conditions. Small-scale shake table tests were conducted on slopes under dry, saturated, and partially saturated conditions. Results showed that, without applying compost blankets, the slope exhibited no deformation under partially saturated conditions up to a frequency of 4.5 Hz, with a moisture content of 20.06 ± 1.42%. In contrast, saturated slopes without compost blankets, with a moisture content of 28.43 ± 1.67%, experienced complete failure within 18 s at a frequency of 3.5 Hz. The study found that compost blankets effectively reduced deformation under dynamic loading, especially under partially saturated conditions. The findings suggest that compost blankets can help retain moisture content and enhance slope stability under dynamic loading, making them an effective solution for erosion control and slope stabilization in environments subjected to seismic and traffic-induced vibrations. However, further large-scale prototype models with rigorous instrumentations are necessary to explore the long-term, full-scale impact of root development on slope stability and deformation.