Method and equipment for superelevation optimization of railway curve
A super-high and railway technology, applied in the fields of instruments, calculations, electrical digital data processing, etc., can solve the problems of increasing the maintenance and repair workload of the public works department, the cost of replacing rails, the development of scale patterns on the top surface of the rails, and the hidden dangers of safety. The effect of super high value, reducing damage and disease, and improving safety
Active Publication Date: 2019-01-22
CHINA SHENHUA ENERGY CO LTD +1
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Problems solved by technology
When the superelevation (105mm) of existing heavy-haul railways is set, due to the high speed of passenger trains, a large number of low-speed heavy-duty trains passing through repeatedly crush the inner rails of the curve, causing the top surface of the rails in the curved section to wear , The fish scale pattern develops rapidly, which will lead to a one-time brittle fracture of the rail, which increases the maintenance workload of the public works department and the cost of replacing the rail, and there is a great potential safety hazard
That is, there is a lack of a method and equipment that can optimize the superelevation of railway curves in the prior art
Method used
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Embodiment
[0027] Taking a R400m small-radius curve of Shenshuo heavy-haul railway as an example, the reasonable design of superelevation is studied, and the actual superelevation of the line is 105mm. According to the measured results, the passing speed of trucks is about 43.2km / h; the passing speed of passenger cars is about 72km / h.
[0028] Figure 2-3 It is a schematic diagram of the corresponding relationship between the superelevation value of the railway curve of the line section and the dynamic performance of the train according to an embodiment of the present invention, wherein the first wheel pair left and the first wheel pair right respectively represent a section of vehicles (ie The left and right wheels of the first wheel pair of the train car) to the fourth wheel pair left and the fourth wheel pair right respectively represent the left and right wheels of the fourth wheel pair of a vehicle, and the vehicle one to the vehicle Three means the vehicles in the first to third q...
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The invention relates to the technical field of railway engineering and discloses an ultrahigh optimization method and equipment of a railway curve. The method comprises the following steps: acquiring railway vehicle system parameters and line parameters of a line section; according to the railway vehicle system parameters, the line parameters and a railway vehicle-rail system dynamic simulation model, calculating a corresponding relation between a railway curve ultrahigh value in the line section and a dynamic performance of a train; adjusting the ultrahigh value according to a corresponding relation between the railway curve ultrahigh value and the dynamic performance of the train, and railway line standards. With the adoption of the ultrahigh optimization method disclosed by the invention, the ultrahigh value is effectively and reasonably optimized according to conditions of the actual line train, and damages to the line section of the railway curve are effectively reduced, so that potential safety hazards, caused by the fact that the ultrahigh value is not reasonably set, are avoided, and the safety of the railway operation is greatly improved.
Description
technical field [0001] The invention relates to the technical field of railway engineering, in particular to a method and equipment for superelevation optimization of railway curves. Background technique [0002] Heavy-haul railway transportation has been widely valued by railways all over the world because of its large transportation capacity, high efficiency and low transportation cost, and it is also the development direction of my country's railway transportation. The Shenshuo heavy-duty railway is the second west-to-east coal transportation channel in my country after the Daqin Railway. It is mainly responsible for the task of coal transportation from the Shenfu Dongsheng Coalfield. The entire 266-kilometer railway is a mountainous railway, with complex terrain and many small-radius curves . When the superelevation (105mm) of existing heavy-haul railways is set, due to the high speed of passenger trains, a large number of low-speed heavy-duty trains passing through repe...
Claims
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IPC IPC(8): G06F17/50
CPCG06F30/367
Inventor 李瑞俊韩治平常晓东魏朝雄高亮肖宏辛涛侯博文王璞
Owner CHINA SHENHUA ENERGY CO LTD