Results 61 to 70 of about 3,665 (187)

Influence of Asphalt Emulsion Stabilization on Pavement Structural Behavior and Life Cycle Assessment (LCA)

open access: yesAdvances in Civil Engineering, Volume 2026, Issue 1, 2026.
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
wiley   +1 more source

The effect of seismic action on stability of saline soil subgrade in cold region based on isothermal stratification method

open access: yesEarthquake Research Advances
With the change of seasons, the shear strength of saline soil subgrade filler will change with the change of external temperature, which will aggravate the adverse effects of seismic on the subgrade.
Jie Cheng   +4 more
doaj   +1 more source

Evaluation systems for service performance of subgrade engineering in permafrost regions

open access: yesJournal of Infrastructure Preservation and Resilience
The quantitative evaluation of subgrade service performance is one of the key challenges for road construction in cold regions, and is essential to selection and decision of subgrade structure. Based on relevant specifications and literatures, this paper
Jiankun Liu, Bowen Tai, Xu Li
doaj   +1 more source

Behavior and Control of the Ballastless Track-Subgrade Vibration Induced by High-Speed Trains Moving on the Subgrade Bed with Mud Pumping

open access: yesShock and Vibration, 2019
This paper investigates behavior and control of the ballastless track-subgrade vibration induced by high-speed trains under mud pumping occurring in the subgrade bed.
Junjie Huang   +3 more
doaj   +1 more source

Comparative evaluation of geotechnical properties of red tropical soils and anthills from parts of Edo State for road construction

open access: yesJournal of Applied Sciences and Environmental Management, 2018
Geotechnical tests were carried out on a total of six samples of red tropical soils developed over sedimentary and Basement terrains, made up of three soils and three termite hills samples.
O Andre-Obayanju   +2 more
doaj   +1 more source

Analysis of Flexible Pavement Structural Behavior Considering Decreased Subgrade Resilient Modulus [PDF]

open access: yesMATEC Web of Conferences
This research focuses on the subgrade resilient modulus and its significance in investigating flexible pavements. The study compares results obtained from two distinct flexible pavement structures, utilizing numerical analysis using FLAC3D softawere ...
Bouatia Mohammed
doaj   +1 more source

Research on Construction Countermeasures for Freeze–Thaw Deformation of Permafrost Subgrade in Forest Regions of Northeast China

open access: yesApplied Sciences
The permafrost in forest regions of Northeast China is very sensitive to the disturbance of subgrade construction, which will aggravate the degradation of the permafrost upper limit, leading to freeze–thaw deformation of the permafrost subgrade. Based on
Zhibo Xu, Guihe Wang, Zhu Yang
doaj   +1 more source

Subgrade uplift prediction along a high-speed railway using machine learning techniques in Sichuan, China

open access: yesFrontiers in Earth Science
In the red-bed areas of southwestern China, subgrade uplift deformation poses a serious safety concern for high-speed trains. However, the subgrade uplift mechanisms are still not well-defined, and there is a lack of effective prediction methods for ...
Hongyi Yan   +5 more
doaj   +1 more source

The Control of Soil Compaction Degree by Means of LFWD

open access: yesThe Baltic Journal of Road and Bridge Engineering, 2012
Compaction is a method of in situ soil modification to improve its engineering properties. The paper aim is to present the light falling weight deflectometer applied in a laboratory and in situ to the compaction control for noncohesive soils.
Maria Jolanta Sulewska
doaj   +1 more source

An Integrated Multisource and Multiscale Monitoring Technique for Assessing the Health Status of High-Speed Railway Subgrade

open access: yesRemote Sensing
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
doaj   +1 more source

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