Field assessment of railway ballast degradation and mitigation using geotextile

Singh, Randhir; Nimbalkar, Sanjay; Singh, Saurabh; Choudhury, Deepankar

doi:10.1016/j.geotexmem.2019.11.013

Cited by 33 publications

(21 citation statements)

References 30 publications

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“…Figure 6. Change in the strain modulus of ballast samples with the increasing percentage of sand contamination in the second cycle of loading [10] Raghvendra Pratap Singh et al [11] explored the effect of woven geotextile on the stability of the track by placing them at the ballast-subgrade interface and analyzing the degradation and fouling of the ballast. For this purpose, 173 ballast samples were collected from different locations of the single-track section (DN), and double-track section (UP) between Bhusawal and Akola in the state of Maharashtra, India, where about 20 trains pass per day of 20.5 tons for UP track (coal loaded trains), and 5.8 tons for the DN track (empty trains).…”

Section: Figure 4 the Effect Of Frequency And Reinforcement On The Resilient Modulus (Mr)mentioning

confidence: 99%

Review of materials used for ballast reinforcement

Ahmad

2021

Acta Tech. Jaurinensis

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This mini review summarizes the most recent research in ballast reinforcement. Several materials are being used for the purpose of improving the ballast layer in railways, including geosynthetics, rubber sheets and binding agents. Such methods of reinforcement have proven to be beneficial for increasing the strength, stiffness, and resilience of the ballast layer in addition to reducing settlement, breakage, degradation, and maintenance cost and frequency. Latest studies try to find the best types, placement, and combination of geosynthetics to achieve the highest strength and resistance, in addition to obtaining the optimum percentage of binding agents and methods of applying them in order to discover the most effective binder that achieves the most improvement to the mechanical properties of the layer for a reasonable price. An overview of the recent tests conducted to study the reinforced ballast layer and their results is presented in this paper, as well as an overall evaluation of the implementation of these reinforcement methods in railways.

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Section: Figure 4 the Effect Of Frequency And Reinforcement On The Resilient Modulus (Mr)mentioning

confidence: 99%

Review of materials used for ballast reinforcement

Ahmad

2021

Acta Tech. Jaurinensis

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“…In addition, the applications of the GRS foundation become more and more widely. Many scholars have investigated the role of geogrid or geotextile in railway track, mechanical foundation, highway pavement and the protection of shallow buried pipeline [20,[94][95][96][97][98][99][100]. Venkateswarlu et al [20] performed field resonance tests to study the dynamic response of GRS foundation under machine foundation.…”

Section: Current Research Trend and Future Prospectmentioning

confidence: 99%

Planar geosynthetic-reinforced soil foundations: a review

2020

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Geosynthetics-reinforced soil (GRS) foundation can improve the bearing capacity of the foundation and reduce the settlement of the footing, which has been widely applied to the treatment and improvement of soft soil foundation. In recent years, scholars have carried out a large number of studies to reveal the influence of different factors on the load and settlement behaviors of GRS foundations. In this study, the reinforcing mechanisms of reinforced materials are first summarized, and then the literature review of planar geosynthetic-reinforced foundations from the aspects of experimental studies, numerical simulations and theoretical analyses are presented. Finally, the current research trend of reinforced foundation and the prospects in the future study are discussed. Although the researches on the performance of GRS foundations are conducted extensively, there is no unified understanding on the failure mode and reinforcing mechanism of reinforced foundation. It is necessary to propose the accurate and simple calculation method to evaluate the ultimate bearing capacity of reinforced foundations based on the reinforcing mechanism and failure mode. In addition, the dynamic response of GRS foundations under cyclic loading and earthquake needs to be studied intensively. The paper summarizes the past and present developments of the GRS foundations and provide the views for the further researches.

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“…They concluded that these layers influence vibration modes and transmission properties of the ballastless tracks and as a result, the vibrations become stable. Another interesting group of papers [ 20 , 21 , 22 ] is dedicated to various reinforcing systems used in track structures, such as geotextiles and geomembranes applied as separators between the ballast and the subgrade. They are used as filter layers which improve track stability and reduce the maintenance costs.…”

Section: Introductionmentioning

confidence: 99%

Laboratory Tests and Analyses of the Level of Vibration Suppression of Prototype under Ballast Mats (UBM) in the Ballasted Track Systems

et al. 2021

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The present paper is aimed at the analysis of under ballast mats (UBM) which are used in ballasted track structures as vibration isolators and to protect the ballast layer against fast degradation. The mats were tested in the laboratory and afterwards a novel 4-DoF mechanical model of the track structure with UBM was developed. The novelty of this study consists in the comparison of two testing procedures: a procedure based on the popular German standard DIN 45673-5 and a new European standard EN 17282, released in October 2020. Major discrepancies were demonstrated in the determined values of the static and dynamic characteristics using both approaches—especially in reference to the mats with higher stiffness.

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Field assessment of railway ballast degradation and mitigation using geotextile

Cited by 33 publications

References 30 publications

Review of materials used for ballast reinforcement

Review of materials used for ballast reinforcement

Planar geosynthetic-reinforced soil foundations: a review

Laboratory Tests and Analyses of the Level of Vibration Suppression of Prototype under Ballast Mats (UBM) in the Ballasted Track Systems

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