INEQUALITIES RESEARCH OF THE TRACK AT THE RAILROAD CROSSINGS
DOI:
https://doi.org/10.15802/stp2015/55341Keywords:
railroad crossings, permanent way, inequalities of a track, the strength calculation of a track, deformation of a track, the permissible speed of movementAbstract
Purpose. The intersection of highways and railways in one level – railway crossing, is a zone of increased danger for rail and road transport. Nearly half of all crossings are available on the main directions of passenger transportation. From this comes the problem of maintenance and service locations of intersection roads and railways. The purpose of this work is to evaluate the processes of emergence and development of inequalities in the area of railroad crossings and identify the factors that cause them. Methodology. The presence of derogation from the plan and profile within the railway crossing and approaches to it reduces evenness of riding and passenger comfort. Today, there are various possibilities for shooting natural geometry of a railway track. For research on a large number of areas during long service life, the tape of a track measuring car remains the most convenient. However, this tool is directed to assess the state of the railway line and does not determine the exact geometrical position. When trying to determine valid outlines of the track inequalities on track measuring tape, some difficulties arise. Findings. Performed statistical analysis showed a steady trend of growth of inequalities in the area of the railway crossings. Generally, the level of inequalities in the vertical plane increases in1.3−3.2 times and in 1.2−2.0 times in the horizontal plane (compared with areas that are outside crossing). During the deflection lines of action in the area of railroad crossing concrete slabs work as ribs that limit deflections of rail-tie grating. When placing the wheels of the bogie before (or after) and within crossing the calculated modulus of elasticity under the rail base, brought to the point of wheels contact can vary up to 3 times. Originality. Issues of the assessment and investigation of inequalities on track started to be developed. The resulting statistics on inequalities accumulation gauge in the zone of crossing were obtained. Analytical research changes in the characteristics of stress and deformation of the track at the site of the conclusion of the railway crossing were presented. Practical value. Obtained results will be useful for measures to improve the evenness riding of trains and increase the comfort level of passengers.
References
Danilenko E.I., Rybkin V.V. Pravyla rozrakhunkiv zaliznychnoi kolii na mitsnist i stiikist. TsP-0117 [Calculation rules of a railway track for strength and stability. TsP-0117]. Kyiv, Transport Ukrainy Publ., 2004. 64 p.
Danilenko E.I., Velinets V.P. Teoreticheskoye resheniye zadachi po opredeleniyu realnogo bokovogo modulya uprugosti puti, pri sovmestnnom deystvii na relsovuyu nit gorizontalnykh i vertikalnykh sil [The theoretical solution to the problem of the real side of the elastic modulus of the track determination , in a joint action on a rail thread horizontal and vertical forces]. Zbirnyk naukovykh prats Derzhavnoho ekonomiko-tekhnolohichnoho universytetu transportu «Transportni systemy i tekhnolohii» [Proc. of the State Economic and Technological University «Transport Systems and Technologies»], 2014, no. 24, pp. 106-122.
Kurhan D.M. Do vyrishennia zadach rozrakhunku kolii na mitsnist iz urakhuvanniam nerivnopruzhnosti pidreikovoi osnovy [To the solution of problems about the railways calculation for strength taking into account unequal elasticity of the subrail base]. Nauka ta prohres transportu. Visnyk Dnipropetrovskoho natsionalnoho universytetu zaliznychnoho transportu – Science and Transport Progress. Bulletin of Dnipropetrovsk National University of Railway Transport, 2015, no. 1 (55), pp. 90-99. doi: 10.15802/stp2015/38250.
Kurgan N.B. Predposylki sozdaniya vysokoskorostnykh magistraley v Ukraine [Background of the high-speed railways establishment in Ukraine]. Ukrainski zaliznytsi – Ukrainian Railways, 2015, no. 5-6, pp. 16-21.
Lapina L.G. Analiz statisticheskikh kharakteristik prosadok relsovykh nitey i postroeniye bazovykh nerovnostey puti [The analysis of the statistical characteristics of the rail lines sag and the construction of the track irregularities base]. Tekhnicheskaya mekhanika – Technical Mechanics, 2013, no. 1, pp. 17-24.
Kurhan M.B., Kurhan D.M., Khmelevska N.P., Baidak S.Yu. Metodyka vyznachennia dopustymykh shvydkostei rukhu poizdiv na skladnykh diliankakh planu zaliznytsi [Methodology of determination of admissible speeds of train movement on difficult sections of railroad plan]. Nauka ta prohres transportu. Visnyk Dnipropetrovskoho natsionalnoho universytetu zaliznychnoho transportu – Science and Transport Progress. Bulletin of Dnipropetrovsk National University of Railway Transport, 2014, no. 2 (50), pp. 83-94. doi: 10.15802/stp2014/23760.
Zheleznov M.M., Pevzner V.O., Solovev V.P., Nadezhin S.S. Nauchnyye osnovy modelirovaniya vzaimodeystviya puti i podvizhnogo sostava v sovremennykh usloviyakh ekspluatatsii [The scientific basis of modeling the interaction of the way and rolling stock in modern conditions]. Byulleten Obedinennogo Uchenogo Soveta OAO «RZhD» [Bulletin of the United Scientific Council of JSC «RR»], 2014, no. 4, pp. 21-29.
Polozheniye po otsenke fakticheskikh parametrov ustroystva krivykh uchastkov puti vagonami puteizmeritelyami, raschetu ratsionalnykh parametrov ustroystva krivykh dlya ikh pasportizatsii. TsPT-46/2 [Statutes for the assessment of actual parameters of the device curves sections of track by the track recording cars, the rational parameters calculation of the device curves for their certification. TsPT-46/2].Moscow, OAO «RZhD» Publ., 2009. 43 p.
Babenko A., Lynnyk H., Moiseienko K. Polozhennia pro provedennia planovo-zapobizhnykh remontno-koliinykh robit na zaliznytsiakh Ukrainy. TsP-0287 [Statutes of scheduled preventive maintenance repair and track work on the railways of Ukraine. TsP-0287]. Kyiv, Devalta Publ., 2015. 45 p.
Kurhan M.B., Orlovskyi A.M., Patlasov O.M. Pravyla vyznachennia pidvyshchennia zovnishnoi reiky i vstanovlennia dopustymykh shvydkostei v kryvykh diliankakh kolii. TsP-0236 [The rules for determining the elevation of the outer rail and the establishment of permissible velocities in the curved track. TsP-0236]. Kyiv, 2011. 52 p.
Kossov V.S., Bidulya A.L., Krasnov O.G., Akashev M.G. Rezultaty ekspluatatsionnykh ispytaniy geometricheski-silovogo metoda otsenki sostoyaniya puti [The field test results of geometric-force method for track state estimation]. Nauka ta prohres transportu. Visnyk Dnipropetrovskoho natsionalnoho universytetu zaliznychnoho transportu – Science and Transport Progress. Bulletin of Dnipropetrovsk National University of Railway Transport, 2013, no. 5 (47), pp. 97-104. doi: 10.15802/stp2013/17971.
Tekhnicheskiye usloviya na raboty po rekonstruktsii (modernizatsii) i remontu zheleznodorozhnogo puti [Technical specifications for the reconstruction (modernization) and repair of railway tracks].Moscow, 2012. 310 p.
Patlasov O.M., Rybkin V.V., Paleichuk Yu.V. Tekhnichni vkazivky shchodo otsinky stanu reikovoi kolii za pokaznykamy koliievymiriuvalnykh vahoniv ta zabezpechennia bezpeky rukhu poizdiv pry vidstupakh vid norm utrymannia reikovoi kolii. TsP-0267 [Technical guidance on the assessment of the rail track condition on indicators track measuring cars and ensure the safe movement of trains with departures from the norms of the track. TsP-0267]. Kyiv, Transport Ukrainy Publ., 2012. 25 p.
Uhoda pro asotsiatsiiu mizh Ukrainoiu, z odniiei storony, ta Yevropeiskym Soiuzom, yevropeiskym spivtovarystvom z atomnoi enerhii i yikhnimy derzhavamy-chlenamy, z inshoi storony [The Association agreement between Ukraine, on the one hand, and the European Union, with the European Atomic Energy Community and their member States, on the other hand]. Available at: http://www.kmu.gov.ua/kmu/docs/EA/00_Ukraine-EU_Association_Agreement_%28body%29.pdf (Accessed 7 September 2015).
Umanov M.I., Patlasov A.M. Sovershenstvovaniye otsenki sostoyaniya puti s ispolzovaniyem srednekvadraticheskikh otkloneniy yego geometricheskikh parametrov [Improving the estimation of track condition using standard deviations of its geometrical parameters]. Visnyk Dnipropetrovskoho natsionalnoho universytetu zaliznychnoho transportu imeni akademika V. Lazariana [Bulletin of Dnipropetrovsk National University of Railway Transport named after Academician V. Lazaryan], 2012, issue 40, pp. 109-114.
Ushkalov V., Lapina L., Mashchenko I. Raschetnyye vozmushcheniya dlya otsenki dinamicheskikh kachestv gruzovykh vagonov [Calculated disturbances for the evaluation of dynamical properties of freight cars]. Nauka ta prohres transportu. Visnyk Dnipropetrovskoho natsionalnoho universytetu zaliznychnoho transportu – Science and Transport Progress. Bulletin of Dnipropetrovsk National University of Railway Transport, 2013, no. 4 (46), pp. 135-144. doi: 10.15802/stp2013/16600.
Fischer Sz, Horvát F. Investigation of the reinforcement and stabilisation effect of geogrid layers under railway ballast. Slovak Journal of Civil Engineering, 2011, vol. 19, issue 3, pp. 22-30. doi: 10.2478/v10189-011-0015-y.
Fischer S. A vasúti zúzottkő ágyazat és a szemcsés kiegészítő rétegek alá beépített georácsok belső nyírási ellenállásának vizsgálata. Sínek Világa, 2014, no. 4, pp. 22-27.
Wang T., Souleyrette R.R., Lau D. Quantifying Rail-Highway Grade Crossing Roughness: Accelerations and Dynamic Modeling. Transportation Research Board 94nd Annual Meeting. № TRB15-4825. Washington DC, USA, 2015. 11 p.
Rose J.G., Malloy B.R., Souleyrette R.R. Rehabilitation Assessment and Management Practices to Ensure Long-Life, High-Performance Highway-Railway At Grade Crossings. Proc. of the Joint Rail Conf. JRC 2014 (2.04–4.04.2014).USA, 2014. 14 p. doi: 10.1115/jrc2014-3761.
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