Taoyong Zhou
Faculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology, Kunming 650500, China
Bin Hu
China Railway Large Maintenance Machinery Co., Ltd. Kunming, Kunming 650215, China
Junfeng Sun
Faculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology, Kunming 650500, China
ABSTRACT
Railway ballast tamping operation is an important work in the railway line maintenance and renewal operation, which is employed to restore the initial geometry of railway track distorted by train traffics. The main goal of tamping operation is to compact the stone ballasts under the sleepers supporting the railway squeezing and vibrations. The ballast compactness is the most direct index for evaluating the quality of tamping operation. This paper presents an experimental method used to measure the ballast compactness under the sleeper before and after tamping operation based on water-filling method and creates a discrete element analysis model of railway ballast which analyzes the change of ballast compactness under tamping operation based on discrete element method. The simulation results are very similar with experimental results, which verify that the discrete element method is an effective method to evaluate the change of railway ballast compactness under tamping operation.
PDF References Citation
How to cite this article
Taoyong Zhou, Bin Hu and Junfeng Sun, 2013. Study of Railway Ballast Compactness under Tamping Operation. Journal of Applied Sciences, 13: 2072-2076.
DOI: 10.3923/jas.2013.2072.2076
URL: https://scialert.net/abstract/?doi=jas.2013.2072.2076
DOI: 10.3923/jas.2013.2072.2076
URL: https://scialert.net/abstract/?doi=jas.2013.2072.2076
REFERENCES
- Zhai, W.M., K.Y. Wang and J.H. Lin, 2004. Modelling and experiment of railway ballast vibrations. J. Sound Vibr., 270: 673-683.
CrossRef - Indraratna, B., P.K. Thakur and J.S. Vinod, 2010. Experimental and numerical study of railway ballast behavior under cyclic loading. Inter. J. Geomechanics, 10: 136-144.
CrossRef - McDowell, G.R., W.L. Lim, A.C. Collop, R. Armitage and N.H. Thom, 2005. Laboratory simulation of train loading and tamping on ballast. Proc. Institution Civil Eng.: Trans., 158: 89-95.
CrossRef - Vale, C., I. Ribeiro and R. Calcada, 2011. Integer programming to optimize tamping in railway tracks as preventive maintenance. J. Trans. Eng., 138: 123-131.
CrossRef - Saussine, G., E. Azema, R. Perales and F. Radjai, 2009. Compaction of railway ballast during tamping process: A parametric stud. Powders Grains, 1145: 469-472.
CrossRef - Liu, X., K. Zhang and M. Li, 2013. Discrete element method simulation of mesomechanics of railway ballast during tamping process. Adv. Mater. Res., 90-693: 2726-2729.
CrossRef - Lu, M. and G.R. McDowell, 2007. The importance of modelling ballast particle shape in the discrete element method. Granular Matter, 9: 69-80.
CrossRef - Potyondy, D.O. and P.A. Cundall, 2004. A bonded-particle model for rock. Inter. J. Rock Mech. Mining Sci., 41: 1329-1364.
CrossRef - Lobo-Guerrero, S. and L.E. Vallejo, 2006. Discrete element method analysis of railtrack ballast degradation during cyclic loading. Granular Matter, 8: 195-204.
CrossRef - Kim, Y.M., 2008. A granular motion simulation by discrete element method. J. Mech. Sci. Technol., 22: 812-818.
CrossRef - Brown, S.F., B.V. Brodrick, N.H. Thom and G.R. McDowell, 2007. The Nottingham railway test facility, UK. Transport, 160: 59-65.
CrossRef - Liu, X., K. Zhang and M. Li, 2013. Study on motion parameters of tamping operation. Adv. Mater. Res., 694-697: 154-157.
CrossRef - Lu, M. and G.R. McDowell, 2010. Discrete element modelling of railway ballast under monotonic and cyclic triaxial loading. Geotechnique, 60: 459-467.
CrossRef