The invention relates to the field of tunnel engineering, and particularly discloses a tunnel piston effect mitigation device. The tunnel piston effect mitigation device comprises a mounting assembly,a plurality of high-pressure wave absorption assemblies and a plurality of exhaust assemblies, wherein the mounting assembly comprises an arc-shaped isolation hood arranged on the inner wall of a tunnel and an arc-shaped functional hood arranged in the isolation hood, the arc shape of the isolation hood is consistent with the inner wall of a tunnel, the outer surface of the isolation hood is attached to the inner wall of the tunnel, the arc shape of the functional hood is consistent with the inner surface of the isolation hood, the outer surface of the functional hood is attached to the innersurface of the isolation hood, the high-pressure wave absorption assemblies comprise a plurality of piston pipes and a plurality of pistons, the piston pipes are all installed on the functional hoodin communicating mode, the ends, facing the interior of the functional hood, of the piston pipes are air inlets, at least one piston is arranged in each piston pipe in a sliding mode, the exhaust assemblies comprise exhaust pipes, the exhaust pipes are installed on the functional hood, a plurality of air inlets are evenly distributed in the faces, facing the interior of the functional hood, of theexhaust piped. The problem that high-voltage waves are likely to be generated when a high-speed rail enters a tunnel is solved.

    本发明涉及隧道工程领域,具体公开了隧道活塞效应减缓装置,包括安装组件、若干高压波吸收组件以及若干排气组件,所述安装组件包括设置在隧道内壁的弧形隔离罩以及安装在隔离罩内的弧形功能罩,隔离罩弧形与隧道内壁一致且隔离罩外表面与隧道内壁贴合,功能罩弧形与隔离罩内表面一致且功能罩外表面与隔离罩内表面贴合,所述高压波吸收组件包括若干活塞管以及若干活塞,活塞管均连通安装在功能罩上,活塞管朝向功能罩内的一端为进气口,每个活塞管内均滑动设置了至少一个活塞,所述排气组件包括排气管,排气管均安装在功能罩上,排气管朝向功能罩内的一面均布开有若干进气口,本发明以解决高铁进入隧道时容易产生高压波的问题。


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    Title :

    Tunnel piston effect mitigation device


    Additional title:

    隧道活塞效应减缓装置


    Contributors:

    Publication date :

    2020-12-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B61B RAILWAY SYSTEMS , Eisenbahnanlagen / E21F Sicherheitsvorrichtungen, Förderung, Auffüllen oder Bergversatz, Rettungswesen, Bewetterung oder Entwässerung in oder von Gruben oder Tunnels , SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINAGE IN OR OF MINES OR TUNNELS



    Tunnel piston pressure relief device

    QU QIFANG | European Patent Office | 2021

    Free access

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    Stalker, R.J. | Engineering Index Backfile | 1967


    The longshot free piston hypersonic tunnel

    Richards, B. E. / Enkenhus, K. R. | TIBKAT | 1968



    A study of the free-piston shock tunnel.

    STALKER, R. J. | AIAA | 1967