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Civil and Environmental Engineering Commons

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Ministry of Higher and Secondary Specialized Education of the Republic of Uzbekistan

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Articles 1 - 9 of 9

Full-Text Articles in Civil and Environmental Engineering

Analysis Of The Modes Of Movement Of Buses During Their Journey, A.M. Ochilov May 2021

Analysis Of The Modes Of Movement Of Buses During Their Journey, A.M. Ochilov

The Scientific Journal of Vehicles and Roads

The article analyzes the order of movement of buses, increases the efficiency of passenger transportation in the public sphere in the city of Tashkent, reduces the number of private cars, pollution of the city ecology, the costs of Organization of Traffic Safety, profitability of automobile enterprises engaged in passenger transportation, etc.k. the highways solve the loading problems. Issues arising at" tashshahartransxizmat " JSC were considered in the coverage of their solutions. In increasing the efficiency of Transport, the main focus is on the wide introduction of information and communication technologies, as well as the selection of bus routes and the …


Development Of Algorithms And Methods Of Automatic Mode Of Electric Centralization System For Installing Routes For High-Speed Trains, B.B. Raxmonov, S.T. Boltaev, J.F. Kurbanov Aug 2020

Development Of Algorithms And Methods Of Automatic Mode Of Electric Centralization System For Installing Routes For High-Speed Trains, B.B. Raxmonov, S.T. Boltaev, J.F. Kurbanov

Journal of Tashkent Institute of Railway Engineers

At present, the CIS (Commonwealth of Independent States) has introduced an additional “high-speed traffic” regime in the electrical interlocking system to prepare routes for high-speed trains at stations. The use of a scheduled time notification restricts the movement of trains at stations and paralyzes all movements at stations and tracks before and after the passage of a high-speed train. To reduce this time, algorithms and methods were proposed for the automatic mode of the electrical interlocking system when establishing routes to stations, taking into account various categories of trains.


Application Of Fiber Optical Sensors For The Account Of Axes Of The Mobile Composition Of Automatic And Telemechanical Systems On Railway Transport, Aziz Azimovich Saitov Jun 2020

Application Of Fiber Optical Sensors For The Account Of Axes Of The Mobile Composition Of Automatic And Telemechanical Systems On Railway Transport, Aziz Azimovich Saitov

Journal of Tashkent Institute of Railway Engineers

In this scientific work, modern optical sensors based on the use of modern electronic electromagnetic relay counters used on railways, stages and stations in the Republic of Uzbekistan are investigated and presented. The electromagnetic relay device ESSO increases the transmission of false messages under the influence of magnetic induc-tion. This leads to a decrease in the level of reliability. The study showed that the recommended axle counting sensors have high sensitivity when passing wheels on sensors on hauls and stations, which can increase reliability and reduce operating costs for train movements, trunk and station roads.


An Example Of Calculating The Speed Of The Railway Carriage On The Accelerating Slope Of The Hump, Shukhrat Batirovich Djabbarov Mar 2020

An Example Of Calculating The Speed Of The Railway Carriage On The Accelerating Slope Of The Hump, Shukhrat Batirovich Djabbarov

Journal of Tashkent Institute of Railway Engineers

The paper content is based on classic provisions of mechanics (D’Alembert principle) for non-ideal communication. The authors provide with the analytical proof of that the linear acceleration of the car when it is uniformly accelerated along the descending part of the hump depends on the force that affects the car to roll down the slope of the hump, on the force of resistance of all kinds, on the adjusted weight of the car with load taking into account the moment of flywheel action. At the same time, the results of calculations prove that the rotating parts weight practically does not …


Analysis Of Sensors Of The Electronic System For Counting Axles (Eacs) And Firm Altpro Frausсher In The Organization Of Train Traffic, Sunnatillo Tuymurodovich Boltaev, Jonibek Fayzullaevich Kurbonov, Aziz Azimovich Saitov Dec 2019

Analysis Of Sensors Of The Electronic System For Counting Axles (Eacs) And Firm Altpro Frausсher In The Organization Of Train Traffic, Sunnatillo Tuymurodovich Boltaev, Jonibek Fayzullaevich Kurbonov, Aziz Azimovich Saitov

Journal of Tashkent Institute of Railway Engineers

In this scientific work, the sensors of the electronic system for counting axles of various firms used in level crossings, trunk and station railways of the Republic of Uzbekistan are investigated. Based on the analysis, the parameters of the EACS accounting system are determined. The parameters that led to system crashes were defined in the electronic system for calculating the axes of the EACS. The parameters of the components of the EACS accounting system are determined, which are the main element in determining free loaded roads, reference points, points and sections of arrows. The conditions for using the sensor parameter …


On The Dynamics Of The Movement Carriage In The Accelerating Grable The Marshalling Yard, Shukhrat Umarkhodjaevich Saidivaliev, Zakhro Valijanovna Ergasheva Dec 2019

On The Dynamics Of The Movement Carriage In The Accelerating Grable The Marshalling Yard, Shukhrat Umarkhodjaevich Saidivaliev, Zakhro Valijanovna Ergasheva

Journal of Tashkent Institute of Railway Engineers

The article presents the results of studies of the movement of the carriage on the slope hump (including brake position) when exposed to the forces of wind. Maintaining acceptable speed impacts and screening the Park can be achieved by changing the profiles of individual sections of the drain side hump or application of additional wagon retarders.


Development Of Railway Automation And Telemechanics Systems In Modern Conditions, N.M. Aripov, D.X. Rixsiyev Nov 2019

Development Of Railway Automation And Telemechanics Systems In Modern Conditions, N.M. Aripov, D.X. Rixsiyev

Journal of Tashkent Institute of Railway Engineers

The article deals with the development of railway automation and telemechanics systems in modern conditions by upgrading existing track receivers of rail circuits. We recommend a microcontroller-based track receiver for station rail circuits. The developed electrical device-an electronic pulse-phase track receiver based on a microcontroller - will serve to improve the existing relay track receivers, increase the reliability and service life of the elements of the rail chain, minimize preventive maintenance, and reduce the cost of equipment. The proposed solution significantly reduces the risk of dangerous failures of station rail circuits, and also increases the safety of train traffic


Geometric Formation Of Schemes Of Technical Objects In Automated Design Systems, M.A. Khadzhimuhametova Nov 2019

Geometric Formation Of Schemes Of Technical Objects In Automated Design Systems, M.A. Khadzhimuhametova

Journal of Tashkent Institute of Railway Engineers

This paper discusses the issues of mathematical support for the formation of various schemes of complex technical objects for a computer-aided design subsystem. Information is given on the description of the station diagram using finite element methods. On the one hand, it is required that the mathematical model be as universal as possible (cover all types of de-signed schemes), accurate, algorithmically reliable. On the other hand, it is required to ensure the minimum cost of the required memory of com-puter time. These contradictions are eliminated by creating a bank of models. Models are planned from separate modules of structural and …


Plots Of Pojected Sorting Selection Hill’S The Uncertainty In The Formulas Of The Peak Constructive And Technological, Shuxrat Umarxodjayevich Saidivaliev Nov 2019

Plots Of Pojected Sorting Selection Hill’S The Uncertainty In The Formulas Of The Peak Constructive And Technological, Shuxrat Umarxodjayevich Saidivaliev

Journal of Tashkent Institute of Railway Engineers

In the article, on the basis of theorems on the change of kinetic energy for a non-free material point in the final form of theoretical mechanics, formulas for determining the braking path of the car in the braking zone of the sorting hill are derived. With a known value of the acceleration during the braking of the car the path of the car braking section can also be determined by the formula of the path of elementary physics. In the article on the basis of the theorem on the change of kinetic energy for a non-free material point in the …