Research on ballast breakage under tam** operation based on DEM–MBD coupling approach

S Shi, L Gao, H ** can effectively improve the service quality of ballast bed, but could cause ballast
breakage. To mitigate the ballast damage caused by tam**, an application programming …

Experimental evaluation of cyclic performance of steel slag and grids of truck scrap tire as a novel reinforced ballast material

M Tajabadipour, M Esmaeili, A Askari - Construction and Building Materials, 2024 - Elsevier
Introducing a novel ballast material based on reinforcing steel slag aggregates with strips of
scrap tire can be beneficial due to decreasing the crushing and increasing the dam** of …

Intelligent optimization of tam** parameters using discrete element and radial basis function-multi-objective genetic algorithm (RBF-MOGA)

S Shi, J Wang, L Gao, Y Zhang, Y ** can effectively recover the geometry of a ballasted track. Nevertheless, it can
decrease the mechanical properties of ballast bed. To mitigate the damage caused by …

Macro-and-micromechanical responses of ballast under triaxial shearing using coupled DEM–FDM with flexible and rigid membranes: a comparative study

C Chen, D Wu, Y Sun, X Zhang - Granular Matter, 2024 - Springer
Railway ballast undergoes rearrangement, abrasion, and even breakage, when subjected to
high-speed train loads. To reproduce the deformation and degradation behavior of ballast …

[HTML][HTML] A UAV-based air quality evaluation method for determining fugitive emissions from a quarry during the railroad life cycle

MK Kim, Y Jang, J Heo, D Park - Sensors, 2021 - mdpi.com
Gravel is used in railway infrastructure to reduce environmental impacts and noise, but
gravel on tracks must be replaced continuously because it deforms due to wear and …

Drainage potential of reservoir course of porous pavement for various particle size distributions of aggregate

M Koohmishi, G Shafabakhsh - Transportation Geotechnics, 2018 - Elsevier
Porous pavements are constructed to allow surface water to pass freely through the
pavement structure and finally to percolate into the underlying soil. The main advantages of …

Hydraulic conductivity and water level in the reservoir layer of porous pavement considering gradation of aggregate and compaction level

M Koohmishi - Construction and Building Materials, 2019 - Elsevier
The reservoir layer of porous pavement comprised of coarse aggregate provides a structure
for temporarily retention of water inside the porous media and gradually discharging water …

Evaluation of the effect of water saturation on the strength of individual railway ballast aggregate

M Koohmishi - Transportation Geotechnics, 2019 - Elsevier
Decreasing the hydraulic conductivity of railway ballast course can lead to the saturation of
aggregate which can adversely affect the proper performance of this structural layer. The …

Emission of fugitive dust from railway maintenance vehicles operating on gravel track

S Park, M Kim, M Versoza, J Heo, M Kim… - … Research Part D …, 2022 - Elsevier
The railway is using gravel to mitigate impact and noise. Since these gravel tracks are
deformed due to wear and weathering, they must be replaced at regular intervals. A large …

Utilization of 60/70 penetration grade asphalt on ballast structures with the variation of percentage and the number of pouring layers

DM Setiawan - Journal of the Mechanical Behavior of Materials, 2019 - degruyter.com
Railroad ballast structure layer may experience a decline in mechanical and geometrical
performance due to heavy train and environmental loads. In order to improve the quality of …