Geo-Congress 2020
Long Term Performance of Shallow Slopes Stabilized with Recycled Plastic Pins
Publication: Geo-Congress 2020: Engineering, Monitoring, and Management of Geotechnical Infrastructure (GSP 316)
ABSTRACT
Periods of prolonged rainfall events give rise to sloughing and surficial failures of slopes underlain by expansive clayey soils, resulting in significant maintenance costs for various transportation agencies. Recycled plastic pins (RPP) are a sustainable and cost-effective solution to stabilize such surficial slope failures due to their long-term endurance against degradation. The objective of the current study is to evaluate long term performance of shallow slopes stabilized with recycled plastic pins. Two highway embankments in North Texas, where cracks were observed along the shoulder due to surficial movement of the slopes, were stabilized using RPPs. Inclinometer casings were installed in the slopes to monitor the lateral movement, while topographical surveying was carried out regularly for monitoring the vertical settlement. The long-term performance of the stabilized sections was evaluated between 4 years and 7 years. Based on the study, it was concluded that RPP can be utilized as a sustainable solution for shallow slope failure.
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Information & Authors
Information
Published In
Geo-Congress 2020: Engineering, Monitoring, and Management of Geotechnical Infrastructure (GSP 316)
Pages: 163 - 172
Editors: James P. Hambleton, Ph.D., Northwestern University, Roman Makhnenko, Ph.D., University of Illinois at Urbana-Champaign, and Aaron S. Budge, Ph.D., Minnesota State University, Mankato
ISBN (Online): 978-0-7844-8279-7
Copyright
© 2020 American Society of Civil Engineers.
History
Published online: Feb 21, 2020
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