Investigation to the skid resistance of asphalt pavement based on the movement of aeolian sand

Xue, Yu; Li, Peilong; Zhao, Chenxi; Wang, Yong; Sun, Chao; Khan, Muhammad Dawood

doi:10.1016/j.conbuildmat.2021.125986

Cited by 8 publications

(1 citation statement)

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“…Most of these studies focus on ordinary roads and railways, whereas highways in desert regions face a more complex and variable environment. Compared to ordinary roads, highways occupy larger areas, exhibit more significant horizontal and vertical variations, and are more severely affected by wind and sand erosion; when windblown sand accumulates on the road surface, it can drastically alter the skid resistance of the asphalt [15,16], Vehicle braking distances are increased and drivers are more prone to nervousness and other phenomena [17].…”

Section: Introductionmentioning

confidence: 99%

Analysis of significant risk factors for sand accumulation on desert expressways

Wang,

Liu,

Sun

et al. 2024

Meas. Sci. Technol.

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Expressways in desert areas are prone to sand lifting and accumulation. This study aims to explore the impact of various risk factors on sand accumulation on road surfaces. Initially, the study identifies the causes of these risks through on-site investigation. Subsequently, using Fluent numerical simulation, it examines how different wind speeds, wind directions, route angles, embankment heights, embankment widths, embankment slope ratios, and central median layouts affect sand accumulation. Finally, based on simulation results and sand accumulation data from the Uma Expressway's desert section, the study evaluates the importance of these factors using ordered logistic regression analysis and proposes strategic recommendations. The findings indicate that the degree of sand accumulation increases with higher wind speeds, more significant embankment heights, and variations in wind direction, route angle, and embankment width, as well as the configuration of the central median. Wind speed and embankment height are identified as the main factors influencing sand accumulation. Based on the risk assessment, the study suggests a four-point preventive strategy: (i) implementing wind speed management measures; (ii) optimizing embankment design; (iii) developing sand prevention strategies for the central median; and (iv) adjusting the alignment of the road relative to the wind direction.

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Section: Introductionmentioning

confidence: 99%