TY - GEN
T1 - Finite Element Analyses of Geocell Reinforced Tracks Over Clayey Subgrade
AU - Banerjee, Lalima
AU - Chawla, Sowmiya
AU - Dash, Sujit Kumar
N1 - Funding Information:
The authors would like to acknowledge the funding received by the Department of Science and Technology, Govt. of India, via sponsored project YSS/2015/000222.
Funding Information:
Acknowledgements The authors would like to acknowledge the funding received by the Department of Science and Technology, Govt. of India, via sponsored project YSS/2015/000222.
Publisher Copyright:
© 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.
PY - 2022
Y1 - 2022
N2 - Railways are an integral part of transportation sector of many countries like USA, China, and India. New tracks are being laid at a fast pace as well as existing tracks are being upgraded to meet the demands of the ever-increasing population. Geosynthetics in the form of geocells can be used as a reinforcement material in railways to reduce settlements and track deteriorations which can also reduce the maintenance costs involved. Upgrading tracks require parametric studies to evaluate the effect of various properties of track components on the track system. In the present study, three-dimensional geocell reinforced tracks are modeled using Midas GTS-NX, which is a commercial finite element analysis software. The displacement and vertical stress variations for the railway tracks over clayey subgrade under applied train load were obtained using finite element analyses. The parametric studies involved variation in subgrade modulus and infill modulus to show their effects on reduction in settlements as well as vertical stresses. The comparison of the geocell reinforced model with the unreinforced model showed improvement of railway tracks using geocell. The results of parametric studies show that increase in modulus of subgrade and infill material can effectively improve the performance of railway tracks.
AB - Railways are an integral part of transportation sector of many countries like USA, China, and India. New tracks are being laid at a fast pace as well as existing tracks are being upgraded to meet the demands of the ever-increasing population. Geosynthetics in the form of geocells can be used as a reinforcement material in railways to reduce settlements and track deteriorations which can also reduce the maintenance costs involved. Upgrading tracks require parametric studies to evaluate the effect of various properties of track components on the track system. In the present study, three-dimensional geocell reinforced tracks are modeled using Midas GTS-NX, which is a commercial finite element analysis software. The displacement and vertical stress variations for the railway tracks over clayey subgrade under applied train load were obtained using finite element analyses. The parametric studies involved variation in subgrade modulus and infill modulus to show their effects on reduction in settlements as well as vertical stresses. The comparison of the geocell reinforced model with the unreinforced model showed improvement of railway tracks using geocell. The results of parametric studies show that increase in modulus of subgrade and infill material can effectively improve the performance of railway tracks.
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U2 - 10.1007/978-3-030-77234-5_47
DO - 10.1007/978-3-030-77234-5_47
M3 - Conference contribution
AN - SCOPUS:85113194305
SN - 9783030772338
T3 - Lecture Notes in Civil Engineering
SP - 575
EP - 583
BT - Advances in Transportation Geotechnics IV - Proceedings of the 4th International Conference on Transportation Geotechnics
A2 - Tutumluer, Erol
A2 - Nazarian, Soheil
A2 - Al-Qadi, Imad
A2 - Qamhia, Issam I. A.
PB - Springer Science and Business Media Deutschland GmbH
T2 - 4th International Conference on Transportation Geotechnics, ICTG 2021
Y2 - 23 May 2021 through 26 May 2021
ER -