Simulation Analysis to the Operation of Station Track on High Speed Railway

2002 ◽  
Author(s):  
Lei Nie ◽  
Guiping Xiao ◽  
Hao Yang
Keyword(s):  
High Speed ◽  
Simulation Analysis ◽  
High Speed Railway

scholarly journals Research on multi-stage heating method of high-speed railway emergency traction battery system based on flat heat pipe

2020 ◽  
pp. 172-172
Author(s):  
Xudong Sun ◽  
Xiaoming Xu ◽  
Wei Tang ◽  
Huifen Jin ◽  
Hua Ding
Keyword(s):  
High Speed ◽  
Simulation Analysis ◽  
Heating System ◽  
Heating Time ◽  
Transfer Model ◽  
Generation Model ◽  
Battery System ◽  
High Speed Railway ◽  
Heating Method ◽  
Multi Stage

High-speed rail vehicles need to start the emergency traction battery system in an emergency. In order to ensure that the emergency traction battery system can be quickly started in cold conditions and ensure that the high-speed railway has sufficient mileage, this paper proposes a multi-stage heating method based on flat heat pipes. The thermodynamic parameters of the power battery are obtained by simulation analysis and experimental verification. According to the thermodynamic model, the heat generation model and coupled heat transfer model of the battery are established. Different heating powers are assigned to different heating points and the total heating power is kept constant. Through the analysis results, the multi-stage heating device of the emergency traction battery system can effectively reduce the heating time under cold conditions and the temperature difference between the battery system modules. This paper can provide reference to the design of the battery pack and the matching of the heating system.

Composite Foundation on Bearing Characteristics and Simulation Analysis CFG Pile for the High Speed Railway

2011 ◽  
Vol 71-78 ◽  
pp. 3827-3831
Author(s):  
A Lan Jiang ◽  
Mei Xia Wang
Keyword(s):  
High Speed ◽  
Simulation Analysis ◽  
Coupling Effect ◽  
Rapid Development ◽  
Composite Foundation ◽  
Treatment Technology ◽  
High Speed Railway ◽  
Cfg Pile Composite Foundation ◽  
Sand And Gravel ◽  
Cfg Pile

With the rapid development of high-speed railway in soft foundation, foundation treatment technology has become mature, the most outstanding is CFG pile composite foundation technique. CFG pile composite foundation is made of cement fly ash gravel pile(CFG pile), pile of soil and sandstone , between sand and gravel several problems such as the medium material composition together constitute layer. It has high bearing of capacity, convenient, low costing, strong adaptability and quality control easier.So it is widely applied and promoted. Under static and dynamic loads, the relations of the high-speed railway CFG pile composite foundation is very complex. In order to further understand the intensity of pile-net structure subgrade stability and deformation, pile , requirements of the high-speed railway roadbed ,it needs to do pile-net structure parameter sensitivity analysis. According to high-speed railway CFG pile composite foundation , the numerical analysis can well solve the coupling effect of piles and soil. So, this paper adopts FLAC3D finite difference software is simulated and analyzed.

Simulation and Experimental Study of Floating with Engineering Mechanics on Box Girder Steel Interior Formwork Used in the High Speed Railway

2014 ◽  
Vol 540 ◽  
pp. 185-188
Author(s):  
Jian Ping Li ◽  
Pin Tan ◽  
Jin Huang ◽  
Xiang Jun Wang
Keyword(s):  
Experimental Study ◽  
High Speed ◽  
Simulation Analysis ◽  
Construction Project ◽  
Structure Optimization ◽  
Actual Condition ◽  
Box Girder ◽  
High Speed Railway ◽  
Engineering Mechanics

During the construction of high speed railway box girder, the interior formwork’s floating problem is always been a big common quality fault plagued the construction in the process of concrete pouring, this leads to the roof thickness of box girder arising, the harm is great. This paper combined the construction project of Hebang single linear 32 meter interior formwork, according to the actual condition of the construction, proceeding the simulation analysis and experimental study of floating date on box girder interior formwork. Using the solidworks2010 establish the mode of box girder interior formwork, then, import the mode to the workbench14.5 proceeding simulation analysis. The simulation analysis of interior formwork maximal floating date is 10.67 millimeter, while the measured date is 10.63 millimeter, the deviation is 3.2%. The result manifests the feasibility of the simulation analysis of interior formwork floating date, this provide a reference to the structure optimization of the interior formwork used in the high speed railway.

Testing and Simulation Analysis on the Settlement of Geosynthetic-Reinforced Pile-Supported Embankments on Soft Ground for the High Speed Railway

2011 ◽  
Vol 243-249 ◽  
pp. 4063-4067
Author(s):  
A Lan Jiang ◽  
Mei Xia Wang
Keyword(s):  
High Speed ◽  
Load Transfer ◽  
Simulation Analysis ◽  
Soft Ground ◽  
High Speed Railway ◽  
Construction Methods ◽  
Important Field ◽  
Cement Stabilization ◽  
Soft Subsoil ◽  
Natural Life

The settlement of railway subgrade has an important connection with the quality, safety and natural life of the railway, the excessive settlement of subgrade will directly cause too many problems in the process of railway using. Especially in high speed railway, these problems will be more outstanding, thus affecting the development and progress of the railway. For the foundation of traffic infrastructure in areas with soft subsoil often embankments supported by piles are necessary due to the settlement requirements. For sufficient load transfer into the piles different construction methods are possible. For the construction of a high speed railway, a cement stabilization of the embankment material and geogrid reinforcement on top of the piles were used. Before the temporary load the settlement is monitored continuously for 10 months. In this paper, the method of construction is described and important field monitoring results are presented.

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