Multiple resource constraints-considered high-speed railway trafficability calculation method

Abstract

The invention discloses a multiple resource constraints-considered high-speed railway trafficability calculation method. The method comprises the following steps of: S1, obtaining known data of a high-speed railway, dividing an operation time of the high-speed railway into a plurality of time windows, and classifying the known data for the plurality of time windows; S2, establishing a station track distribution and CRH train application-considered high-speed railway running chart calculation optimization model and a constraint condition, and carrying out train painting in each time window through a pressure test algorithm; and S3, obtaining a train running chart full chart of the high-speed railway after painting the trains in the plurality of time windows in sequence, and carrying out statistical analysis on a train quantity in each time window so as to obtain a high-speed railway trafficability value under the current train running mode. According to the method, influences, on trafficability, of stopping schemes and running chart structures of trains are considered, and high-speed railway trafficability can be calculated by considering trafficability under a certain scale of redundancy and buffering time layout conditions, so that the correctness is high.

Description

technical field [0001] The invention relates to the field of high-speed railways. More specifically, it relates to a method for calculating the passing capacity of high-speed railways considering multiple resource constraints. Background technique [0002] At present, the calculation methods of railway passing capacity mainly include deduction coefficient method, minimum average interval method, direct calculation by establishing mathematical calculation model, computer simulation method of encrypting or compressing operation diagram through computer, etc.; the analysis of factors affecting passing capacity mainly includes The way of running, the way of stopping, the type of train, the combination of running lines, the setting of skylights, the buffer redundancy time, etc. [0003] For the optimization of the EMU operation, foreign scholars usually use mathematical programming to solve the EMU operation problem, considering conditions such as whether to allow disassembly, r...

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Problems solved by technology

[0004] However, there are the following problems: (1) Since all the high-speed railways are passenger trains, the existing deduction coefficient method is difficult to solve the high-speed railway passing capacity. method

[0005] (2) Existing studies do not include the station-to-departure line capacity into the scope of high-speed railway section capacity calculation, but in actual operation, the station-to-departure line capacity has a great impact on the section capacity. Processing results in inaccurate calculations

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