Research and application of high-speed railway passenger query system base on flex

Ha Tai railway passenger dedicated line is a national key project of the eleventh five-year plan. Its different from other construction of high-speed railway because there is many frozen soil over the place. The requirement of the subgrade material is higher.We proposed a idea that gradred broken stone mixed with cement and fine powder applied in the project.The compressive strength,splitting tensile strength and flexural strength were studied and analyzed through laboratory test.And regression analysis between compressive strength and flexural strength was made .According to the regression analysis,a power exponent function between flexural strength and compressive strength was got.Based on this,the corresponding relationship table was deduced,which can be used in practical projects.

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Nighttime Monitoring and Assessment Technology of Subgrade Settlement for Chengdu-Guanxian Line during Operation Period

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.742.13 ◽

2013 ◽

Vol 742 ◽

pp. 13-18

Author(s):

Qian Su ◽

Wei Jiang ◽

Kai Jiang ◽

Yu Jie Li ◽

Ling Ling Yang

Keyword(s):

High Speed ◽

Influence Factors ◽

Residual Deformation ◽

High Speed Train ◽

High Speed Railway ◽

Ballastless Track ◽

Operation Period ◽

Assessment Technology ◽

Railway Passenger ◽

Maintenance Plan

The criterion for residual deformation of Substructure of ballasteless track on railway passenger dedicated line is extremely strict in order to satisfy the safety and comfort requirements of the high-speed train during operation period, urgent need to strengthen the ballastless track lines settlement deformation observation, prediction and assessment technology. Based on Chengdu-Guanxian line, this paper puts forward observation programs of subgrade settlement combined with the characteristics of Subgrade Settlement through the analysis of the influence factors of subgrade settlement deformation and key consideration about the factors of nighttime observation precision. It shows that the monitoring and assessment technology could meet the requirements through the analysis of field data, it can be guidance of railway management departments to make maintenance plan. Some advices provide reference for the monitoring and assessment of high-speed railway subgrade settlement during operation period.

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Short-Time Fluctuation Characteristic and Combined Forecasting of High-Speed Railway Passenger Flow Based on EEMD

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.409-410.1071 ◽

2013 ◽

Vol 409-410 ◽

pp. 1071-1074

Author(s):

Xiu Shan Jiang ◽

Rui Feng Zhang ◽

Liang Pan

Keyword(s):

Support Vector Machine ◽

Empirical Mode Decomposition ◽

High Speed ◽

Ensemble Empirical Mode Decomposition ◽

Support Vector ◽

High Speed Railway ◽

Passenger Flow ◽

Mode Decomposition ◽

Railway Passenger ◽

Short Term Forecasting

Take Wuhan-Guangzhou high-speed railway for example. By adopting the empirical mode decomposition (EMD) attempt to analyze mode from the perspective of volatility of high speed railway passenger flow fluctuation signal. Constructed the ensemble empirical mode decomposition-gray support vector machine (EEMD-GSVM) short-term forecasting model which fuse the gray generation and support vector machine with the ensemble empirical mode decomposition (EEMD). Finally, by the accuracy of predicted results, explains the EEMD-GSVM model has the better adaptability.

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Survey on High-Speed Railway Train Plan Design Issues

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.505-506.489 ◽

2014 ◽

Vol 505-506 ◽

pp. 489-492 ◽

Cited By ~ 1

Author(s):

Peng Fei Zhou ◽

Bao Ming Han ◽

Qi Zhang

Keyword(s):

High Speed ◽

High Speed Railway ◽

Transportation Services ◽

Passenger Train ◽

Train Operation ◽

Railway Passenger ◽

Railway Operation ◽

Important Basis ◽

Train Plan

High-speed railway passenger train operation plan is an important basis to ensure the quality of transportation services. With construction and development of the country's high-speed railway, design and evaluation of railway passenger train plan theory need to be improved and perfected. On the basis of reading and studying a large amount of the references, this paper summarizes the domestic and overseas high-speed running railway operation modes, the high speed railway train operation programs design and other aspects. Besides, according to the related problems and shortcomings, this paper illustrates the meanings and necessities of analyzing the high-speed railway passenger train program.

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High-Speed Railway PFV Prediction Model Research Under Regional Economic Conditions

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.569.246 ◽

2012 ◽

Vol 569 ◽

pp. 246-250 ◽

Cited By ~ 1

Author(s):

Xue Dong Du ◽

Na Ren

Keyword(s):

Prediction Model ◽

High Speed ◽

Economic Conditions ◽

High Speed Railway ◽

Regional Economic ◽

Railway Stations ◽

Passenger Flow ◽

Model Research ◽

Railway Passenger ◽

Railway Operation

Under the regional economic conditions, a passenger flow prediction model is proposed in the paper. It can predict high-speed railway passenger flow volume under the conditions of multi-mode, and guide the reasonable operation of high-speed railway effectively. According to the data analysis of Beijing and Tianjin railway stations, we can know that the reasonable ticket price plays an important role in high-speed railway operation benefit under regional economic conditions.

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Dynamic Scheduling Model and Algorithm for Dispatching Trains in High-Speed Railway Passenger Station

2010 Joint Rail Conference, Volume 2 ◽

10.1115/jrc2010-36167 ◽

2010 ◽

Author(s):

Yixiang Yue ◽

Leishan Zhou

Keyword(s):

High Speed ◽

Large Scale ◽

Job Shop ◽

Dynamic Scheduling ◽

Time Window ◽

Real Life ◽

Greedy Heuristic ◽

Railway Station ◽

High Speed Railway ◽

Railway Passenger

Regarding the railway station tracks and train running routes as machines, all trains in this railway station as jobs, dispatching trains in high-speed railway passenger stations can be considered as a special type of Job-Shop Problem (JSP). In this paper, we proposed a multi-machines, multi-jobs JSP model with special constraints for Operation Plan Scheduling Problem (OPSP) in high-speed railway passenger stations, and presented a fast heuristic algorithm based on greedy heuristic. This algorithm first divided all operations into several layers according to the yards attributes and the operation’s urgency level. Then every operation was allotted a feasible time window, each operation was assigned to a specified “machine” sequenced or backward sequenced within the time slot, layer by layer according to its priority. As we recorded and modified the time slots dynamically, the searching space was decreased dramatically. And we take the South Beijing High-speed Railway Station as example and give extensive numerical experiment. Computational results based on real-life instance show that the algorithm has significant merits for large scale problems; can both reduce tardiness and shorten cycle times. The empirical evidence also proved that this algorithm is industrial practicable.

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Research on Two Ends Energy-Absorbing Structure of High-Speed Railway Passenger Car Body

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.544.61 ◽

2012 ◽

Vol 544 ◽

pp. 61-66 ◽

Cited By ~ 1

Author(s):

Zhi Xin Zhang ◽

Shou Ne Xiao ◽

Guang Wu Yang ◽

Xiu Min Shang

Keyword(s):

High Speed ◽

The Other ◽

Protective Structure ◽

Similar Function ◽

Function Structure ◽

High Speed Railway ◽

High Speed Trains ◽

Low Stiffness ◽

Railway Passenger ◽

Energy Absorbing

Based on characteristics of high-speed trains, a special passive protective structure was designed and simulated by the non-linear FEA code LS-DYNA. The two-step energy-absorbing structure fixed on the cab side and the similar function structure on the other end were studied. It was proved that the two-step structure deformed orderly and had an energy absorbing capacity of 3.4MJ which could protect the cab effectively and that the rear end low stiffness zone had an energy absorbing capacity of 6.5MJ which also could protect the integrity of the passenger areas. Three typical train-to-train collision scenarios were studied by full-scale FEA method.

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