Citation

Manaviparast HR, Araújo N, Cristelo N, Miranda T. Soils Rocks 2022; 45(2): e2022077921.

Copyright

(Copyright © 2022, Brazilian Association for Soil Mechanics and Geotechnical Engineering and Portuguese Geotechnical Society)

DOI

10.28927/SR.2022.077921

PMID

unavailable

Abstract

For the purpose of road safety, it is vital to reduce the severity of road accidents and increase safety around the roadway area by deploying guardrails. In case of a car crash, a guardrail post must be deformable so that such restraint is not too abrupt due to the occupant's sensitivity. Soil type influences on the guardrail post behavior have been a somewhat unfounded variable due to the high soil heterogeneity and challenging interpretation of its real implications on the safety of guardrail systems. Since little attention is concentrated on evaluating the guardrail post behavior through simplified procedures, this article aims to provide a simplified experimental and numerical approach to study the behavior of guardrail posts located on organic soil.

RESULTS of laboratory and in-situ tests indicated that guardrail posts behavior located on organic soil depends on section orientation, driving depth, and loading speed. To confirm and compare the in-situ tests, simplified numerical simulations through Plaxis 3D software were carried out, and data from numerical modeling approved the accuracy of in-situ results.

Language: en

Keywords

Dynamic loading; Guardrail post; Organic soil; Road safety; Static loading