Reinforcement mechanisms and settlement behaviour of aeolian sand subgrades in desert railways

Yipeng Guo, Dahao Zou, Rusong Nie, Yanlu Qi and Peng Wu

International Journal of Rail Transportation, 2025, vol. 13, issue 6, 1157-1177

Abstract: The subgrade is a critical component of railway infrastructure, providing vital support and stability for track structures. Aeolian sand, abundant in China, utilizing it as a filling material presents significant challenges due to its loose structure and low shear strength. This study addresses these challenges by investigating the performance of three distinct reinforcement structures implemented in the world’s first desert railway, the Hotan-Ruoqiang Railway in China. These structures were monitored and evaluated, with a focus on earth pressure, foundation deformation, settlement behaviour, and geogrid performance. The study further explores the reinforcement mechanisms of aeolian sand subgrades and provides practical recommendations for improving subgrade stability. The findings demonstrate the effectiveness of reinforcement techniques and offer insights into their potential applications in similar engineering contexts.

Date: 2025
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DOI: 10.1080/23248378.2025.2469301

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International Journal of Rail Transportation is currently edited by Wanming Zhai and Kelvin C. P. Wang

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