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A Georeferenced Dataset for Map** and Assessing Subgrade Defects in China’s High-Speed Railways
China has the world’s longest high-speed rail (HSR) network, marked by dense transportation and complex operations. However, frequent train use...
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Experimental investigation of influence of amide polymer on loess for subgrade
The effects of moisture and drying shrinkage can lead to uneven settlement, cracking, and other diseases in loess subgrade. The objective of this...
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Identification of railway subgrade defects based on ground penetrating radar
A recognition method is proposed to solve the problems in subgrade detection with ground penetrating radar, such as massive data, time–frequency and...
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Study of hydrothermal processes in ice-layers subgrade under constant temperature and dynamic loading
The presence of ice-layers in the subgrade soils makes the hydrothermal state of road subgrade built in island permafrost regions more susceptible to...
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Dynamic characteristics of coal gangue subgrade filler under traffic load based on the hysteretic curves
Traffic cyclic loading is the key factor that leads to the deterioration of the long-term service behavior of subgrade. A series of cyclic triaxial...
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Multi-defect risk assessment in high-speed rail subgrade infrastructure in China
This study addresses the escalating risk of high-speed railway (HSR) infrastructure in China, amplified by climate warming, increased rainfall,...
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Discrete element simulation of vibration compaction of slag subgrade
In this study, to improve the compaction quality and parameters of slag, discrete element models of irregular rock particles (10–60 mm) and circular...
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Residual deformation of coal gangue subgrade filler under multi-vibration cyclic loading
In this paper, the development law of residual deformation of coal gangue subgrade filler is analyzed through large scale triaxial test, and the...
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Influence of calcium carbonate sludge on cement-stabilized subgrade quality as investigated by means of electrical resistivity measurements
Calcium carbonate [CaCO 3 ] is a key raw material used in the clarification of sugarcane juice for syrup production. The CaCO 3 sludge produced during...
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Deformation constitutive model of subgrade soil under intermittent cyclic loading
During the actual operation of subways, high-speed railway, and other infrastructure, subgrade soil will be subjected to periodic vibration and...
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Stabilizing Clayey Soil in Subgrade with Waste Ash
Construction of roads on clayey soils (CS) causes issues because of changes in soil volume and lesser bearing capacity compared to stabilized soils....
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Integrated geotechnical and mineralogical evaluation of the subgrade of some failed pavements along Enugu-Onitsha expressway Southeastern Nigeria
This research is focused on the constant pavement failure in parts of the Enugu-Onitsha expressway. The failed portions are constructed on the...
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Long-term monitoring and analysis of the longitudinal differential settlement of an expressway bridge–subgrade transition section in a loess area
To solve the problem of "bridgehead bum**" in the transition section between the road and bridge of an expressway in a collapsible loess area, a...
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Modeling resilient modulus of subgrade soils using LSSVM optimized with swarm intelligence algorithms
Resilient modulus (Mr) of subgrade soils is one of the crucial inputs in pavement structural design methods. However, the spatial variability of soil...
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Influence of temperature gradient of slab track on the dynamic responses of the train-CRTS III slab track on subgrade nonlinear coupled system
Temperature is an important load for ballastless track. However, there is little research on the system dynamic responses when a train travels on a...
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Experimental study on the punching failure model of soft red rock subgrade by BPT-BVM methods and it’s assessment of the load bearing capacity
The recommended bearing capacity of medium weathering mudstone foundation is less than the capacity of the rock structure to withstand loads in...
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Experimental and numerical investigation on failure mechanism of expansive soil subgrade slope
Shallow landslides of expensive soil slopes occur from time to time, and most engineering geological problems are directly or indirectly caused by...
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Wind-driven device for cooling permafrost
Preserving permafrost subgrade is a challenge due to global warming, but passive cooling techniques have limited success. Here, we present a novel...
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Quality evaluation of ground improvement by deep cement mixing piles via ground-penetrating radar
Deep cement mixing piles are a key technology for treating settlement distress of soft soil subgrade. However, it is very challenging to accurately...
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Characterization of permanent deformation properties of densely-compacted unbound granular materials subjected to cyclic loading
To investigate the long-term deformation properties of unbound granular materials (UGM) that are ordinarily adopted to construct subgrade for...
