Assessment of the stress-strain behavior of structural elements of the railway superstructures in the Republic of Uzbekistan during the operation of rolling stock with increased axle loads

Рахимов, Р. В.

doi:10.20295/2223-9987-2019-3-67-88

Cited by 2 publications

(2 citation statements)

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“…Based on the analysis of the characteristics of the structures of the main, station and access roads, which are included in the balance of JSC "O'zbekiston temir yo'llari", the following track designs were selected for research [6][7][8][9][10]:  rails R65 and R50 types, laid on reinforced concrete sleepers (RCS) with a profile of sleepers 1840 pcs/km on crushed stone ballast (Cs);  R65 rails, laid on wooden sleepers of the first (I) type with a sleep pattern of 1600 and 1840 pcs/km on crushed stone ballast;  rails R65 and R50 types, laid on wooden sleepers of the second type with a profile of sleepers 1600 and 1840 pcs/km on gravel ballast (Gr);  R50 rails, laid on wooden sleepers of the second (II) type with a sleep pattern of 1600 and 1840 pcs/km on crushed stone ballast.…”

Section: Methodsmentioning

confidence: 99%

Commissioning of the freight wagons with increased axle loads is a guarantee of the further development of railways of the Republic of Uzbekistan

et al. 2021

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The aim of the study is to select rational axle loads of the rolling stock and establish the conditions for their circulation on the railways of the Republic of Uzbekistan. In this work, research has been carried out to assess the indicators of the stress-strain state of rail track elements from the action of the rolling stock with various axial loads. The dynamic loads from the rolling stock wheel on the rail, tensile stresses at the edges of the rail foot, in wooden sleepers (rubber under-rail pads on reinforced concrete) under the linings, in the ballast under the sleeper, as well as stresses at the main area of the roadbed, were determined. The obtained results of studies on the determination and assessment of the loading of the elements of the permanent way and sub-grade bed under the condition of not exceeding their standard values made it possible to establish the permissible speeds of movement of freight wagons with increased axle loads of 25 and 27 tf on the railways of the Republic of Uzbekistan, depending on the design of the track and the thickness of the ballast layer, which will increase the running and carrying capacity of the most loaded sections of the railway network, reduce operating costs, increase the volume of freight traffic by rail, which will create conditions for the further development of national rail transport in the implementation of export and transit potential.

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Section: Methodsmentioning

confidence: 99%

Commissioning of the freight wagons with increased axle loads is a guarantee of the further development of railways of the Republic of Uzbekistan

et al. 2021

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“…The possibility of introducing new rolling stock into operation is determined by assessing the stress-strain state of the structural elements of the permanent way and the subgrade, which are indicators of the impact of rolling stock on the railway track [5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Assessment of the impact on the railway track of a special purpose passenger car model 61-934

2021

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In this work, theoretical studies have been carried out in order to assess the strength of structural elements of the track superstructure from the impact of a special-purpose passenger carriage. The assessment of the impact of the wagon on the railway track was carried out according to the stresses in the edges of the rail base, stresses in the main area of the subgrade and the stability of the track against lateral shear. The calculations showed that the strength and stability of the structural elements of the track superstructure as a result of the impact on it of a special-purpose passenger carriage model 61-934 meets the regulatory requirements.

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Assessment of the stress-strain behavior of structural elements of the railway superstructures in the Republic of Uzbekistan during the operation of rolling stock with increased axle loads

Cited by 2 publications

References 0 publications

Commissioning of the freight wagons with increased axle loads is a guarantee of the further development of railways of the Republic of Uzbekistan

Commissioning of the freight wagons with increased axle loads is a guarantee of the further development of railways of the Republic of Uzbekistan

Assessment of the impact on the railway track of a special purpose passenger car model 61-934

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