Remission device and method for tunnel micro-pressure waves

Abstract

The invention discloses a relief device and method for tunnel micro-pressure waves. The relief device comprises a tunnel, a plurality of first-stage negative pressure cavities, an air inlet and a negative pressure pump. A plurality of first-stage negative pressure cavities are formed in the tunnel mountain body, the first-stage negative pressure cavities are formed in the two sides in the tunnel respectively, air inlets are formed in the first-stage negative pressure cavities, electric opening and closing doors are arranged at the air inlets, a negative pressure pump is further arranged on the outer side of the tunnel mountain body, and the negative pressure pump communicates with the first-stage negative pressure cavities through pipelines; a plurality of first-stage negative pressure cavities are formed in a tunnel mountain, and when a train enters a tunnel, electric opening and closing doors at air inlets are sequentially opened, so that air in the tunnel is extracted through negative pressure in the first-stage negative pressure cavities, a local negative pressure area is formed in the tunnel, and therefore the positive pressure of pressure waves generated when the train passes through the tunnel is counteracted; and the opening time of the electric switch door can be controlled according to the magnitude of the pressure wave or the running speed of the train, and the magnitude of the negative pressure in the tunnel is controlled, so that the negative pressure state in the tunnel is adjusted. 本发明公开了一种用于隧道微气压波的缓解装置及方法，包括隧道、多个一级负压腔体、进气口以及负压泵；隧道山体的内部设置有多个一级负压腔体，多个一级负压腔体分别设置于隧道内的两侧，一级负压腔体上设置有进气口，进气口处设置有电动开关门，隧道山体的外侧还设置有负压泵，负压泵通过管道与多个一级负压腔体连通；通过在隧道山体的内部设置多个一级负压腔体，可在列车进入隧道时，依次打开进气口处的电动开关门，以使一级负压腔体内的负压抽取隧道内的空气，使得隧道内形成局部负压区域，从而抵消列车穿越隧道产生的压力波的正压；并且可通过压力波的大小或列车运行速度的大小控制电动开关门的打开时间，控制隧道内负压的大小，以调整隧道内的负压状态。