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Tunnel ventilation system for pressure relief of underground overpass station of rail transit

A technology for rail transit and tunnel ventilation, applied in mine/tunnel ventilation, sustainable transportation, climate sustainability, etc., can solve problems such as increased civil construction costs, waste of resources, inability to achieve high-standard space-time goals, and save civil construction. The effect of space, reducing civil construction investment, and meeting the needs of diversified and differentiated services

Pending Publication Date: 2022-08-09
GUANGZHOU METRO DESIGN & RES INST
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above method has the following disadvantages: the train needs to be decelerated, which cannot achieve high-standard space-time goals and help the city to develop high-quality; the use of separate pressure relief measures will increase civil engineering costs and cause waste of resources

Method used

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  • Tunnel ventilation system for pressure relief of underground overpass station of rail transit
  • Tunnel ventilation system for pressure relief of underground overpass station of rail transit

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Embodiment 1

[0022] This embodiment provides a tunnel ventilation system for pressure relief at an underground overpass station of rail transit. The applied underground overpass station can adopt the following settings: the upper and lower tunnels of the underground overpass station are respectively provided with overpass lines 4 and stop line 5; cross line 4 is the line where the train crosses the station at high speed, and is located on the side away from the station platform; stop line 5 is the train arrival stop line 5, which is located on the side of the station platform; dividing wall 3 is set on the cross line 4 and stop line 5; such as figure 1 and figure 2 As shown in the figure, the tunnel ventilation system of this embodiment is arranged at both ends of the station, which includes: a pressure relief hole 1, a piston air hole 1, a pressure relief well 2 and a piston air well 2; the pressure relief hole 1 is combined with the piston air hole 1 It is set above the stop line 5 and...

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Abstract

The invention provides a tunnel ventilation system for pressure relief of a rail transit underground overpass station. The rail transit underground overpass station comprises a tunnel, a platform, an overpass line, a parking line and a partition wall, and the overpass line is a line for a train to cross the station at a high speed and is located on the side away from the station platform; the parking line is a train arrival parking line and is located on the side close to a station platform. The partition wall is arranged between the parking line and the overpass line; the tunnel ventilation system comprises a pressure relief hole, a piston air hole, a pressure relief well and a piston air well. The pressure relief hole and the piston air hole are arranged in a combined mode, and the pressure relief hole is formed above the parking line and within the range of the partition wall. The area of the pressure relief hole and the piston hole is greater than or equal to the section area of the parking line tunnel; and the pressure relief well is combined with the piston air shaft and is communicated with the pressure relief hole and the piston air hole through a piston air duct. The influence of high-speed station crossing of the train is effectively reduced, meanwhile, civil engineering space is saved, and civil engineering investment is reduced.

Description

technical field [0001] The invention belongs to the technical field of rail transit aerodynamics, and in particular relates to a tunnel ventilation system used for pressure relief at underground overpass stations of rail transit. Background technique [0002] With the gradual expansion of the urban area, the construction of urban rail transit lines has also changed from central urban lines to urban lines and intercity lines. In order to improve the overall network transportation capacity and improve the efficiency of passenger transportation, the speed of trains has gradually increased in recent years. . The aerodynamic effect of the tunnel caused by the high-speed train running in the tunnel has a serious impact on the safety, economy and comfort of the train and passengers. In order to overcome the impact of high-speed operation of trains in underground stations, the currently completed and operational rail transit usually adopts the following methods: [0003] First, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F1/00E21F1/14
CPCE21F1/003E21F1/145Y02T30/00
Inventor 胡丽君罗燕萍罗辉涂旭炜王静伟
Owner GUANGZHOU METRO DESIGN & RES INST
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