Relevant bibliographies by topics / GEOGRID REINFORCED BALLAST

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'GEOGRID REINFORCED BALLAST'

Author: Grafiati
Published: 11 September 2023
Last updated: 31 July 2025

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Journal articles on the topic "GEOGRID REINFORCED BALLAST"

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Desbrousses, Romaric, Mohamed Meguid, and Sam Bhat. "On the effect of subgrade strength on the performance of geogrid-reinforced railway ballast." E3S Web of Conferences 569 (2024): 05004. http://dx.doi.org/10.1051/e3sconf/202456905004.

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This paper presents the results of a series of ballast box tests aimed at investigating the effectiveness of geogrid reinforcement in reducing track settlement in a 300mm-thick layer of railroad ballast supported by three different artificial subgrades. In each experiment, the ballast layer supports a model tie subjected to cyclic compressive loading applied at a frequency of 0.8Hz with stress extrema at the tie-ballast interface of 57kPa and 400kPa for a total of 40,000 cycles. The three artificial subgrades considered in this study have CBR readings of 25, 13, and 5. For each subgrade, four
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Jing, Guo Qing, Xi Haier Luo, and Zi Jie Wang. "Micro-Analysis Ballast-Geogrid Pull out Tests Interaction." Applied Mechanics and Materials 548-549 (April 2014): 1716–20. http://dx.doi.org/10.4028/www.scientific.net/amm.548-549.1716.

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The discrete element method was used to simulate geogrid-reinforced ballast by pull out tests. Ballast particle was made of irregular clumps where its size and shape were considered by bonded spheres. The response of the ballast reinforced with geogrid under loading agrees with pull out experimental results. The micro-interaction between ballast particle and geogrid analyzed by microscopic parameters, contact force chain, force-displacement of the pull out tests was presented. It was also proved that the shape of granular particles, geogrid size and friction played an important role in ballast
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Fu, Jianjun, Junfeng Li, Cheng Chen, and Rui Rui. "DEM-FDM Coupled Numerical Study on the Reinforcement of Biaxial and Triaxial Geogrid Using Pullout Test." Applied Sciences 11, no. 19 (2021): 9001. http://dx.doi.org/10.3390/app11199001.

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The key to modeling the interlocking of geogrid-reinforced ballast is considering both the continuous deformation characteristics of the geogrid and the discontinuity of the ballast particles. For this purpose, pullout tests using biaxial and triaxial geogrids were simulated using the coupled discrete element method (DEM) and finite difference method (FDM). In this coupled model, two real-shaped geogrid models with square and triangular apertures were established using the solid element in FLAC3D. Meanwhile, simplified shaped clumps were used to represent the ballast using PFC3D. The calibrati
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SZ., FISCHER. "INVESTIGATION OF INNER SHEAR RESISTANCE OF GEOGRIDS BUILT UNDER GRANULAR PROTECTION LAYERS AND RAILWAY BALLAST." Science and Transport Progress, no. 5(59) (November 10, 2015): 97–106. https://doi.org/10.15802/stp2015/53169.

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<strong>Purpose.</strong>&nbsp;Using adequate granular materials and layer structures in the railway super- and substructure is able to stabilise railway track geometry. For this purpose special behaviour of above materials has to be determined, e.g. inner shear resistance. Inner shear resistance of granular media with and without geogrid reinforcement in different depths is not known yet.&nbsp;<strong>Methodology.</strong>&nbsp;The author developed a special laboratory method to measure and define inner shear resistance of granular materials, it is called &laquo;multi-level shear box test&raq
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Ji, Danyang, Zheng Ma, Junjie Zhou, Yajun Li, and Shuai Shao. "A Coupled Discrete-Finite Element Method for Shear Strength Analysis of Geogrid-Reinforced Railway Ballast." Advances in Materials Science and Engineering 2021 (December 31, 2021): 1–11. http://dx.doi.org/10.1155/2021/3685709.

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This paper presents a coupled discrete-finite element method for the investigation of shear strength of geogrid-reinforced ballast by direct shear tests and pull-out tests. The discrete element method (DEM) and finite element method (FEM) are employed to simulate ballast and geogrid, respectively. Irregularly shaped ballast particles are modeled with clumps, and the nonlinear contact force model is used to calculate contact force between particles. Continuum geogrid is modeled by a two-node beam element with six degrees of freedom. A contact algorithm based on the static equilibrium is propose
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Li, Jing, Ya-Fei Jia, Chen-Xi Miao, and Ming-Xing Xie. "Discrete Element Analysis of the Load Transfer Mechanism of Geogrid-Ballast Interface under Pull-Out Load." Advances in Civil Engineering 2020 (October 10, 2020): 1–12. http://dx.doi.org/10.1155/2020/8892922.

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Geogrids have been extensively used in subgrade construction for stabilization purposes of unconfined ballast. Based on well-calibrated microparameters, a series of geogrid-reinforced ballast models with different geogrid sizes and particular structures were developed to reproduce the mechanical behavior of the geogrid under pull-out load in this paper. And the rationality of the DEM model is verified by comparing the evolution law pull-out force measured by laboratory tests and numerical simulations under comparable conditions. Moreover, the macro pull-out force and the internal force distrib
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Abrashitov, A., A. Sidrakov, and A. Zaitsev. "Construction and Current Maintenance of the Reinforced Ballast Layer of the Railway Track." IOP Conference Series: Earth and Environmental Science 988, no. 2 (2022): 022045. http://dx.doi.org/10.1088/1755-1315/988/2/022045.

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Abstract The article presents the ideas for the construction and the current maintenance of the reinforced plastic geogrid top ballast composed of crushed solid rock. Meanwhile, the reinforced ballast material acquires new properties, which lead to the formation of a composite material with new properties. In the reinforced material, only micro-deformations occur under the dynamic load, which is intrinsic to solid rock. In this case, laboratory simulation of reinforced ballast with a cyclic load showed that multilayer stabilization with three geogrids reduces settelment by 67% and does not req
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Abrashitov, Alexander, and Andrei Sidrakov. "Laboratory study of ballast material reinforced by flat geogrid under the dynamic load." MATEC Web of Conferences 265 (2019): 01006. http://dx.doi.org/10.1051/matecconf/201926501006.

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Ballast material suffers from continuous degradation under cyclic load. This leads to rail track settlement and necessitates its constant maintenance. It is serious problem that costs Russia millions of dollars every year. Easily accessible plastic geogrid was proposed to reinforce ballast and to prevent its rapid degradation. However, the optimal parameters of geogrid (its mesh size, geometry and number of layers) remains an open question. In current work effects of number of geogrid layers and geogrid mesh size on ballast settlement are studied by laboratory dynamic load tests.
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Souza, Lucas Machado, Paulo César de Almeida Maia, and Maria Cecília Martins Gomes Rangel. "Long-term geomechanical behavior of geogrid-reinforced ballast in dynamic triaxial tests." Soils and Rocks 48, no. 2 (2025): e2025008924. https://doi.org/10.28927/sr.2025.008924.

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During operation, the ballast is subjected to a gradual breakage process that causes clogging of the substructure. Intervention periods on the ballast layer generate high costs that impact the long-term competitiveness of railways. In this context, this work aims to evaluate the geomechanical behavior of reinforced ballast, assessing the effect of reinforcement and stiffness provided by the addition of geogrids. Using 3D printing, the two reinforcement elements were manufactured with PETG and PLA polymers to represent the commercial geogrids Basetrac Grid PET40 and PET65, respectively. Long-te
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Li, Lihua, Yanan Fang, Bowen Cheng, Na Chen, Mi Tian, and Yiming Liu. "Characterisation of Geogrid and Waste Tyres as Reinforcement Materials in Railway Track Beds." Materials 14, no. 15 (2021): 4162. http://dx.doi.org/10.3390/ma14154162.

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The engineering behaviour of ballast is an important factor to determine the stability and safety of railway tracks. This paper examines the stress–strain, shear strength, peak deflection stress and reinforcement strength ratio of different reinforcement materials and reinforcement locations in ballast track bed layers based on large scale static triaxial shear tests. The results show that geogrid and waste tyre reinforcement have a significant effect on the peak deviator stress of railway track bed layers and the stress–strain relationship is strain-hardened. The peak deviator stress and shea
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Dissertations / Theses on the topic "GEOGRID REINFORCED BALLAST"

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Sinmez, Bugra. "Characterization of Geogrid Reinforced Ballast Behavior Through Finite Element Modeling." Scholar Commons, 2019. https://scholarcommons.usf.edu/etd/7946.

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Recently, the railway pavement structure system, as an integral part of the transport infrastructure, has been under fast development in some countries such as China, Turkey, and some European Union countries, particularly for the use of high-speed trains. In designing and constructing the railway pavement structure, it is necessary to take into account the infrastructure demand of the High-Speed Railway Lines (HSRL). Compared to traditional railway trains, HSRL can cause more significant problems to the ballast or base layer of commonly used ballasted railway pavements. The deteriorated balla
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Chen, Cheng. "Discrete element modelling of geogrid-reinforced railway ballast and track transition zones." Thesis, University of Nottingham, 2013. http://eprints.nottingham.ac.uk/13399/.

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Track deterioration has a serious influence on the safety and efficiency (speed restriction) of train operations. Many expensive, disruptive and frequent repair operations are often required to maintain the ballast characteristics due to the problem of settlement. Because of this, a geogrid solution that has proved to be a simple and economical method of reinforcing track ballast is widely used. This project presents an evaluation of the behaviour of geogrid-reinforced railway ballast. Experimental large box pull-out tests were conducted to examine the key parameters influencing the interactio
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Laryea, Sydney N. K. B. "An investigation into the performance of railway sleeper types and geogrid-reinforced ballast." Thesis, University of Nottingham, 2018. http://eprints.nottingham.ac.uk/49708/.

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Reliability and safety represent key features of any successful railway system and compromising either has undeniable ramifications. Railway industry practitioners are continually challenged to deliver reliability and performance improvements whilst facing ever increasing service demands. These improvements are typically achieved through track maintenance and renewal activities, which have to be balanced against a requirement to reduce whole life-cycle costs. Research focusing on the optimisation of railway track components, which can then be translated to field practice, presents a real oppor
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SINGH, VEER VIKRAM. "NUMERICAL ANALYSIS OF RAILWAY FORMATION WITH GEOGRID REINFORCED BALLAST AND BLANKET LAYER FOR HIGH-SPEED RAIL." Thesis, 2023. http://dspace.dtu.ac.in:8080/jspui/handle/repository/20067.

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India will launch a high-speed rail project to improve the travel time between cities in the upcoming years. Upgrading its current speed of 180 km/h to a high speed of 360 km/h will be a turning point in railway transportation. The Vande Bharat Express is the current high-speed train that travels at a speed of 180 km/hr. India intends to start its first bullet train by 2026. But as the travel speed increases, the stresses will increase on the existing soil formation. The strains on India's railway subgrade component would significantly rise with the addition of high-speed railways
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Book chapters on the topic "GEOGRID REINFORCED BALLAST"

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Gu, Qiusheng, Kaihui Shi, Xuecheng Bian, and Sindy He. "Behavior of Geogrid-Reinforced Railway Ballast Under Train Traffic Loads." In Lecture Notes in Civil Engineering. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-77234-5_57.

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Ngo, Ngoc Trung, and Buddhima Indraratna. "Interface Behavior of Geogrid-Reinforced Sub-ballast: Laboratory and Discrete Element Modeling." In Lecture Notes in Civil Engineering. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-6713-7_16.

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Singh, Veer Vikram, and Anil Kumar Sahu. "Numerical Analysis of Railway Formation with Geogrid-Reinforced Ballast and Blanket Layer." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-8505-0_24.

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Alam, Md Naquib, and Syed Khaja Karimullah Hussaini. "Behaviour of Clay-Fouled Geogrid-Reinforced Rubber-Coated Ballast Under Direct Shear Conditions." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-96-2710-3_1.

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Fattah, Mohammed Y., Mahmood R. Mahmood, and Mohammed F. Aswad. "Experimental and Numerical Behavior of Railway Track Over Geogrid Reinforced Ballast Underlain by Soft Clay." In Sustainable Civil Infrastructures. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-61627-8_1.

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Chen, Cheng, G. McDowell, and N. Thom. "Investigating geogrid-reinforced ballast using laboratory pull-out tests and discrete element modelling." In Advances in Transportation Geotechnics 2. CRC Press, 2012. http://dx.doi.org/10.1201/b12754-101.

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Ngo, N., B. Indraratna, and C. Rujikiatkamjorn. "A study of the behaviour of fresh and coal fouled ballast reinforced by geogrid using the discrete element method." In Geomechanics from Micro to Macro. CRC Press, 2014. http://dx.doi.org/10.1201/b17395-100.

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Conference papers on the topic "GEOGRID REINFORCED BALLAST"

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Liu, Shushu, Hai Huang, and Tong Qiu. "Behavior of Geogrid-Reinforced Railroad Ballast Particles Under Different Loading Configurations During Initial Compaction Phase." In 2017 Joint Rail Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/jrc2017-2218.

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A railroad ballast or subballast layer is composed of unbound granular particles. The ballast/subballast initial compaction phase occurs immediately the construction or maintenance of a track structure is finished. The particles are densified into a more compact state after certain load repetitions. Geogrids are commonly used in railroad construction for reinforcement and stabilization. Currently heavy haul trains are increasing the loads experienced by the substructural layers, which changes behavior of reinforced granular particles. This paper presents a series of ballast box tests to invest
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Mahmud, S. M. Naziur, Debakanta Mishra, and David O. Potyondy. "Effect of Geogrid Inclusion on Ballast Resilient Modulus: The Concept of ‘Geogrid Gain Factor’." In 2018 Joint Rail Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/jrc2018-6126.

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Geogrid reinforcement of railroad ballast improves its structural response under loading, limits lateral movement of ballast particles, and reduces vertical settlement through effective geogrid-ballast interlocking. This improved performance can be linked to improved shear strength and resilient modulus properties. An ongoing research study at Boise State University is focusing on investigating the effects of different specimen and test parameters on the mechanism of geogrid-ballast interaction. A commercially available Discrete Element Modeling (DEM) program (PFC3D®) is being used for this pu
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Qian, Yu, Erol Tutumluer, Debakanta Mishra, and Hasan Kazmee. "Behavior of Geogrid Reinforced Ballast at Different Levels of Degradation." In Geo-Shanghai 2014. American Society of Civil Engineers, 2014. http://dx.doi.org/10.1061/9780784413401.033.

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