Hovorukha V.V., Makarov Yu.A., Kizilov V.K., Sobko T.P., Semidetnaia L.P. Study of side wear of the rail head in curved sections of the track with especially small radii of curvature

Details
Parent Category: Geo-Technical Mechanics, 2019
Category: Geo-Technical Mechanics, 2019, № 149

Geoteh. meh., 2019, 149, 111-121

https://doi.org/10.15407/geotm2019.149.111

 STUDY OF SIDE WEAR OF THE RAIL HEAD IN CURVED SECTIONS OF THE TRACK WITH ESPECIALLY SMALL RADII OF CURVATURE

1Hovorukha V.V., 2Makarov Yu.A., 1Kizilov V.K., 1Sobko T.P., 1Semidetnaia L.P.

1Institute of Geotechnical Mechanics named by N. Polyakov of National Academy of Sciences of Ukraine, 2Branch "Center for Diagnostics of Railway Infrastructure of JSC "Ukrzaliznytsia"

UDC 625.14:625.143.482:622.6:539.3:539.4:62-192

Language: Russian

Annotation.

 In the article, the authors consider actual problem of the rail head side wear caused by various factors occurred in curved sections of the rail track with especially small radii of curvature (less than 650 m). The methodology of the study is aimed at the determination of wear intensity of the side part of rail heads. It is established that the intensity of rail heads side wear in curves with a radius of 200 – 400 m is 0.6 – 2.0 mm per 1.0 million tons (gross weight), and the service life of rails is reduced to 1.0 – 1.5 years. Decrease in train weight from 4600 tons to 4200 tons led to the decrease in side wear of the rail head for track sections with a radius of up to 300 m, 300 – 450 m and more than 450 m, respectively, by 17 %, 8.4 %, 2.2 % – on the "upward travel", and by 14 %, 20.7 %, 8 % – on the "downward travel". It was established that with the increase in the radius of curvature of the track from 268 m to 325 m, intensity of side wear is reduced by 1.15 times on average, and intensity of side wear of the rail head in sections of the rail track on the "downward travel" is on average by 1.6 times less than during the "upward travel". It is established that in the butt joints of curved sections with small radii of curvature, there is an accumulation of residual deformations due to movement in the vertical plane with the intensity of 1.158 mm/million tons (gross weight) of transported cargo, and in the horizontal plane with the intensity of 0.1 mm/million tons (gross weight) of transported cargo. It is further established that the use of rail lubrication units provides decrease in side wear of rail heads by 1.89 times on average. Before the installation of rail lubricators, intensity of side wear of the rail head was 0.189 – 0.207 mm/million tons (gross weight) of transported cargo, and after the installation of rail lubricators, the wear intensity has become 0.090 – 0.122 mm/million tons (gross weight) of transported cargo. Recommendations on reducing the intensity of side wear of rail heads in curves of small radii are given. Obtained results of the study are intended to be applied on the railway and mountain rail transport.

Keywords: i

ntermediate rail fastenings, loading, wear, destruction, resource of work.

References

1. Lysyuk, V.S., Lukyanov, A.V., Tsyurenko, V.N.  [et al.] (1991), “Diminishment of lateral wear of rails and combs of wheels”, in  Upravlenie nadezhnostyu zheleznodorozhnogo puti[Control by reliability of railroad way], Transport, Moscow, SU, pp. 58-69.

2. Lysyuk, V.S. (1997). Prichiny i mekhanizm skhoda kolesa s relsa. Problema iznosa koles i relsov[Reasons and mechanism of tails of wheel from a rail. Problem of wear of wheels and rails], Transport, Moscow, RU.

3. Rybkin, V.V., Nastechyk, M.P., Arbuzov, M.A. [et al.] (2013), “Research of influencing of parameters of arrangement of track on intensity of lateral wear of head of rail in the crooked areas”, . Zbirnyknaukovykhprats, Donetsk, no. 34, 155-162.

4. Bulat, A.F., Govorukha, V.V. and Voloshin, A.I. (2016)., “Diminishment of intensity of lateral wear of interactive elements of rail way and working part of mobile units at the considerable decline of coefficient of friction on contact surfaces”, XIV Mezhdunarodnaya konferentsiya “Problemy mekhaniki zheleznodorozhnogo transporta: bezopasnost dvizheniya, dinamika, prochnost podvizhnogo transporta I energosberezheniye”. Tezisy dokladov [XIV International Conference "Problems of Railway Transport: Traffic Safety, Dynamics, Rolling Stock Strength and Energy Saving". Theses of lectures], Dnipro, UA,  pp. 30-31.

5. Karpushchenko, N.I. and Ostashko, I.A. (1996), «Parameters of track and wear of rails”,  Putiputevoekhazyaystvo, no. 8, pp. 6-7.

6. Hovorukha, V.V. and Makarov, Yu.A. (2017), “Increase of resource of work of rail transport for the set of diminishment of intensity of lateral wear of rails in the crooked small radiuses and pointer translations”, Zbirnyk naukovykh prats za rezultatamy roboty IV Mizhnarodnoi naukovo-tekhnichnoi konferentsii [Collection  of scientific proceedings of  a result of work of the IV international scientific and technical conference], Suchasni tekhnologii rozrobky rudnykh rodovyshch. Ekologo-ekonomichni naslidky diyalnosti pidpryemstv GMK [Modern technologies of exploitation of ore deposits. Ecological and economical consequences of activity of the MM  enterprises], Kryvyi Rih, UA, pp. 63-64

7. Degtyareva, L.N., Osenin, Yu.I. and Myamlin, S.V. (2009), “Mathematical description of power co-operation of wheels and rails”,  Bulletin of Dnipropetrovsk National University of Railway Transport, no. 29, pp. 89-95.

8. Govorukha, V.V. (2005). Mekhanika deformirovaniya i razrusheniya uprugikh elementov promezhutochnykh relsovykh skrepleniy [Mechanics of deformation and destruction of resilient elements of the intermediate rail clamping: monograph], Lira LTD, Dnepropetrovsk, UA.

9. Lysyuk, V.S., Semenov, V.T., Ermakov, V.M., Zverev, N.B. and Bashkatova, L.V. (1999), Upravlenie nadezhnostyu bezstykovogo puti [Control by reliability of nonjoint way], Transport, Moscow, RU.

10. Blokhin, E.P., Pasinko, A.N. and Lyashko, A.D. (2001), “To the problem of wear of wheels and rails”, Zaliznychnyi transport Ukrainy,  no. 1, pp. 2-6.

11. Zharov, I.A. and Zakharov, S.M. (1999), “Influence of different factors on the lateral wear of rails through the corners of appearing suddenly and lateral stitches at motion of light cart in a curve”, Bulletin of Dnipropetrovsk National University of Railway Transport, no. 5, pp. 3-8/

12. State administration of railway transport of Ukraine is «Ukrzaliznytsya». A state enterprise is the «scientifically-designer technological bureau of travel economy of “Ukrzaliznytsya» (2012), Tekhnichni vkazivky z pravyl vkhidnoho kontroliu pryimannia materialiv verkhnoi budovy kolii VNDUZ 32.205.001-2012 TsP [TsP-0272.Technical pointing from the rules of entrance control of acceptance of materials of top structure of the VNDUZ  32.205.001-2012 TsP track], TOV "NVP Polihrafservis", Kyiv, UA.

13. DBN V.2.3-19  Derzhavni budivelni normy Ukrainy. Sporudy transportu. Zaliznytsi kolii1520 mm. Normy proektuvannia [SCN C.2.3-19:2018. State build norms of Ukraine. Buildings of transport. Railways of track 1520 мм. Norms of planning], DP "Ukrarkhbudinform", Kyiv, UA.

About the authors

Hovorukha Volodymyr Vasylovych,  Candidate of Technical Sciences (Ph.D), Senior Researcher, Head of Laboratory of Mine Railway Transport in Department of Geomechanics of Mineral Opencast Mining Technology, Institute of Geotechnical Mechanics named by N. Polyakov of National Academy of Sciences of Ukraine (IGTM, NAS of Ukraine), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Makarov Yurii Oleksandrovych, Master of Science, Doctoral Student, on-the-job, laboratory of Mine Railway Transport in Department of Geomechanics of Mineral Opencast Mining Technology, Institute of Geotechnical Mechanics named by N. Polyakov of National Academy of Sciences of Ukraine (IGTM, NAS of Ukraine), head of the Pioneering Station No. 1 of the branch "Center for Diagnostics of Railway Infrastructure of JSC "Ukrzaliznytsia" (PS-1 CDRI), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Kyzylov Valentyn Kostyantynovych, master of Science, Chief Technologist of the Laboratory of Mine Railway Transport in the Department of Mining Transport Physics and Mechanics, Institute of Geotechnical Mechanics named by N. Poliakov of National Academy of Sciences of Ukraine (IGTM NAS of Ukraine), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Sobko Tamara Petrivna, master of Science, Chief Designer of the Laboratory of Mine Railway Transport in the Department of Mining Transport Physics and Mechanics, Institute of Geotechnical Mechanics named by N. Poliakov of National Academy of Sciences of Ukraine (IGTM NAS of Ukraine), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Semidetna Liudmyla Pavlivna, master of Science, Leading Engineer of the Laboratory of Mine Railway Transport in the Department of Mining Transport Physics and Mechanics, Institute of Geotechnical Mechanics named by N. Poliakov of National Academy of Sciences of Ukraine (IGTM NAS of Ukraine), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .