Wind-break wall of high speed railway

A technology for high-speed railways and windshields, applied to roads, protective equipment, tracks, etc., can solve problems that cannot be directly applied, and achieve the effects of simple and reasonable structure, good windshield effect, and simple installation and maintenance

Inactive Publication Date: 2011-02-09
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The steel plate windshield that uses on the known bridge, although it is more economical to use, it must take the bridge as the skeleton
Its disadvantage is that it cannot be directly applied to open areas without bridges

Method used

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  • Wind-break wall of high speed railway
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  • Wind-break wall of high speed railway

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: Straight plate structure.

[0021] The windshield wall 1 is installed on one side or both sides of the high-speed railway, and the windshield wall 1 is evenly distributed with circular ventilation holes 2 on the windward side wallboard. The edge of the side wall of the high-speed train body 3 is substantially flush; the lower edge of the wall panel of the windshield wall 1 is substantially flush with the lower edge of the high-speed train body underframe. The windshield 1 is a light metal plate beam structure.

[0022] The windshield wall 1 of the straight plate structure mainly uses the ventilation rate to reduce the influence of strong crosswinds on the running high-speed train, which can effectively ensure the safety of the train operation.

Embodiment 2

[0023] Embodiment 2: Angle-type structure.

[0024] It is basically the same as Embodiment 1, except that the windshield wall 1 is inclined about 15 degrees to the direction of the high-speed train body 3, and a reinforcing rod 5 is provided.

[0025] In addition to the effect of Embodiment 1, the windshield 1 of the inclined structure can also effectively change the wind direction of the strong crosswind, and can effectively reduce the component force of the strong crosswind vertically acting on the windshield, which can reduce the windshield of the windshield. self-respect.

Embodiment 3

[0026] Embodiment 3: streamlined structure

[0027] It is basically the same as Embodiment 1, except that: the windward surface of the windshield wall 1 is a streamlined structure, and reinforcing rods 5 are provided.

[0028] In addition to the effects of Embodiment 1, the streamlined windshield can also effectively change the wind direction of the strong crosswind, and can effectively reduce the component force of the strong crosswind vertically acting on the windshield, which can reduce the self-weight of the windshield .

[0029] For example: the height of the embankment is 10 meters, the cross wind speed is 30 meters per second, and the train speed is 350 kilometers per hour. The test results show that:

[0030] 1) The leading vehicle receives the largest lateral force and overturning moment;

[0031] 2) The lateral aerodynamic force on the EMU running under the round-hole windshield is smaller than that under the square-hole windshield; the overturning moments of the r...

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PUM

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Abstract

The invention discloses a wind-break wall of a high speed railway. The wind-break wall (1) is arranged on a side of a high speed railway roadbed (4), wherein the windward side of the wind-break wall is uniformly provided with circular, rectangular or polygonal vent holes or vent holes with combined shape; the ventilation rate is 20 to 40; the height of an upper edge of a wallboard of the windward side of the wind-break wall (1) is not less than that of the upper edge of the side wall of a high speed railway body (3); the lower edge of the wallboard of the windward side of the wind-break wall (1) is not lower than the lower edge of a chassis of the high speed railway body (3); the wind-break wall (1) has a light metal plate girder structure, is made of engineering plastic or other nonmetal materials or has a mixed structure of metal and nonmetal material; the wind-break wall (1) 10 to 15 degrees tilts towards the high speed railway body (3); or when the windward side of the wind-break wall (1) has a streamline structure, reinforcing rods (5) are arranged. The wind-break wall has the advantages that: the structure is simple and rational, the wall is economic and practical, and is easy to mount and maintain, the wind shield effect is good, energy can be saved and safe running of a train can be guaranteed and the like.

Description

technical field [0001] The invention relates to a high-speed railway windshield that can effectively ensure the safe running of high-speed trains in strong crosswind sections. Background technique [0002] With the continuous increase in the speed of high-speed EMUs on the high-speed railway, the impact of strong crosswinds on the safe operation of EMUs has become increasingly prominent. For example, the Beijing-Shanghai high-speed railway is close to the eastern coast of my country and is frequently affected by the monsoon climate. At present, domestic and foreign railways generally adopt the windproof measures of building windbreak walls in windy areas, and practice has proved that windbreak walls are an effective windproof measure. The current types of windshield mainly include earth embankment type, reinforced earth type, concrete inserting plate type, in-line concrete sleeper and steel plate type used on bridges. The steel plate windshield wall that uses on the known ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01F7/02E01B19/00
Inventor 田红旗梁习锋刘堂红杨明智周丹杨志刚刘辉李燕飞
Owner CENT SOUTH UNIV
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