Results 61 to 70 of about 1,911 (175)
The precise identification of railway subgrade defects remains a significant challenge for the railway industry globally. Due to the limitations of individual monitoring techniques, comprehensive information on subgrade defects cannot be obtained.
Yuanxingzi He, Yongwei Li, Linrong Xu
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Assessing pavement sustainability requires jointly evaluating structural performance and environmental impacts, yet these dimensions are often analyzed separately. This study proposes an integrated framework combining mechanistic–empirical pavement design and life cycle assessment (LCA) to quantify the structural–environmental trade‐off associated with
Alexandre Simas de Medeiros +3 more
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Dynamic Response of Railway Subgrade Under Train Load and Freeze–Thaw Action
In railway engineering research, there is a notable gap as existing studies often focus separately on train-induced vibrations or freeze–thaw cycle impacts on subgrades, lacking a comprehensive analysis of their combined effects on subgrade dynamic ...
Lei Gao +4 more
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Application of FWD and GPR for Performance Evaluation of In‐Service Roads
Road performance detection typically encompasses structural strength testing and damage assessment, with the resilient modulus serving as a key indicator of structural integrity. To enhance the assessment of road performance, this study explores the combined application of falling weight deflectometer (FWD) and ground penetrating radar (GPR) in ...
Zhi Hu +9 more
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Dynamic compaction (DC) represents a cost-effective method for reinforcing subgrade and is particularly suited to treating large-scale building subgrade.
Jingyuan Sun +5 more
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Technology and Application of Concrete‐Reinforced Saline Soil Subgrades: A Comprehensive Review
The high salt content and pronounced water‐salt migration characteristics of saline soils significantly affect subgrade performance. In recent years, concrete reinforcement has become a prevalent technique for enhancing the stability and durability of saline soil subgrades. This article systematically reviews the state of the art in concrete‐reinforced
Lei Zhang +8 more
wiley +1 more source
Motivated by the practical application of cement-stabilized macadam to high-speed railway subgrade in cold regions, a series of tests are conducted using an integrated method learnt from an evaluation system used for semi-rigid highway foundations ...
WANG Tian-liang 1,2, SONG Hong-fang 3,1, GUO Zhuo-hao 1,2, YUE Zu-run 1,2, LIN Yong-qing 1,2
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Thermal Stability Analysis and Novel Cooling Technology Field Tests for Permafrost Railway Subgrades
Global warming has intensified the climatic warming and moistening trend on the Qinghai–Tibet Plateau, threatening the thermal stability of railway subgrades in the plateau permafrost regions. However, previous studies have lacked systematic analyses that comprehensively consider the climate along the railway, permafrost conditions, and subgrade ...
Xiaohe Liu, Jianyong Han
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Introducing oxygen vacancies (OVs) in BiOCl catalyst has been regarded as an effective strategy in broadening the narrow range of light response and enhance separation efficiency of photo-induced carriers.
Fei Pei +5 more
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In the context of global warming, existing highways in the permafrost regions of the Qinghai-Tibet Plateau are facing multiple challenges, including surface settlement, roadside water accumulation, groundwater saturation, thickening of melting ...
Bo Tian
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