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Load-Settlement Behaviour of Ballasted Rail Track Stabilized with Geosynthetics
Ballasted rail track system is one of the most important land transportation systems. Ballast aggregate is free draining granular material that helps to transmit and distribute an induced cyclic load to the underlying sub-ballast and sub-grade at a reduced and acceptable level of stress. Upon repeated train loading, ballast deteriorates and becomes fouled because of breakage and infiltration of external fine particles. It adversely affects the permanent settlement and strength of track. Geosynthetics are the most suitable method used to stabilize ballast track system. Performance of track is also depending on the strength of sub-grade soil. Main objective of the study is to investigate the load-settlement behaviour of ballasted rail track by using non-synthetic geocell with different pocket sizes placed above sub-ballast and sub-grade materials. The sand is used as sub-grade material. When placing 2D pocket size geocell above sub-ballast and sub-grade material, the settlement of ballast is decreased by 16.67% and 12.5%, respectively, and corresponding percentage reduction in ballast breakage is 50.46% and 44.7%, respectively.
Load-Settlement Behaviour of Ballasted Rail Track Stabilized with Geosynthetics
Ballasted rail track system is one of the most important land transportation systems. Ballast aggregate is free draining granular material that helps to transmit and distribute an induced cyclic load to the underlying sub-ballast and sub-grade at a reduced and acceptable level of stress. Upon repeated train loading, ballast deteriorates and becomes fouled because of breakage and infiltration of external fine particles. It adversely affects the permanent settlement and strength of track. Geosynthetics are the most suitable method used to stabilize ballast track system. Performance of track is also depending on the strength of sub-grade soil. Main objective of the study is to investigate the load-settlement behaviour of ballasted rail track by using non-synthetic geocell with different pocket sizes placed above sub-ballast and sub-grade materials. The sand is used as sub-grade material. When placing 2D pocket size geocell above sub-ballast and sub-grade material, the settlement of ballast is decreased by 16.67% and 12.5%, respectively, and corresponding percentage reduction in ballast breakage is 50.46% and 44.7%, respectively.
Load-Settlement Behaviour of Ballasted Rail Track Stabilized with Geosynthetics
Lecture Notes in Civil Engineering
Latha Gali, Madhavi (Herausgeber:in) / P., Raghuveer Rao (Herausgeber:in) / Ambily, K. (Autor:in) / Sandeep, M. N. (Autor:in) / Beena, K. S. (Autor:in)
19.09.2020
10 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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