Pneumatic effect releasing facilities for underground bus stop of high-speed railway

Abstract

The invention discloses an aerodynamic effect release facility for an underground station of a high speed railway, which can effectively reduce the wave crest value of micropressure in the station, so as to make the wave crest value of the microrpessure meet the requirements of the design specification. The aerodynamic effect release facility comprises an underground space both ends in the vertical direction of which are communicated with a tunnel, and the station which is arranged inside the underground space, wherein an intermediate section (20) on the side wall of the underground space and an inner port of the tunnel form trumpet gradual change through a transition section (21). The aerodynamic effect release facility has the advantages that the aerodynamic effect release facility can effectively reduce the wave crest value of the micropressure in the station, so as to make the wave crest value of the microrpessure meet the requirements of environmental design, can reduce the pressure peak and the pressure gradient near the station by 20 percent approximately, effectively releases the aerodynamic effect of a high speed train entering the underground station from the tunnel suddenly, and reduces the pressure peak and the pressure fluctuation index in the station to meet the comfort level standard of people waiting for the train in the station.

Description

technical field [0001] The invention relates to high-speed railways, in particular to an aerodynamic effect mitigation facility for underground stations of high-speed railways. Background technique [0002] With the development of transportation and people's demand for high-speed, fast and environmentally friendly transportation, high-speed railway has become the preferred transportation method for connecting large cities. However, urban land is becoming more and more scarce, and it will become more and more difficult to introduce railways into urban centers. Vigorously developing the underground space makes the sustainable development of the city possible, so the construction of railway underground stations will gradually become a new trend in the development of railway transportation. [0003] When the train passes through the tunnel at a high speed, there will be obvious pressure fluctuations in the tunnel and micro-pressure waves at the exit, which will affect the comfo...

AI Technical Summary

Problems solved by technology

If buffer facilities are not used to reduce the peak value of the micro-pressure wave, when the high-speed train passes through tunnels and underground stations at speeds above 200km / h, the environmental design requirements for the micro-pressure wave peak will not be met

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