In order to ensure the safety of construction personnel and equipment, it is necessary to comprehensively analyze the mechanical properties of the protective structure in the process of high-speed train passing, so as to provide a scientific basis for safe construction. This paper established the high-speed railroad construction protection structure finite element analysis model, and then set the boundary conditions and calculating load conditions, the static strength analysis and the simulation results show that the local wind load points to the protective wall, under various load cases, protective wall and prevent panels maximum lateral strain on the control panel, and the wind load increases; The vertical strain of the protective wall and the electric plate is basically the same.
When the high-speed train runs in the track near the electric shield and the protective wall, the edge of the electric shield is less than 3.5m away from the high-speed train, so when the high-speed train passes the electric shield and the protective wall, it will produce a huge air pressure difference between the front and back of the electric shield. The flow field finite element analysis software Fluent was used to analyze the air pressure on the electric shield when CRH3 EMUS passed the electric shield at different speeds, and the distribution law was found, which provided a reference for analyzing the structural mechanical characteristics of the electric shield and the protective wall.
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