The invention discloses an inclined shaft construction ventilation existing tunnel train operation safety early warning method and system. The problem that in the prior art, early warning is not conducted on existing tunnel train operation safety under inclined shaft construction is solved. The early warning method comprises the following steps: drawing up the position of a wind speed measuring point in the existing tunnel; carrying out numerical simulation calculation according to the working condition of the construction site to obtain simulation measuring point wind speeds at the wind speed measuring point positions under different wind taking speeds and different train speeds; obtaining transverse force borne by the train according to the wind speed of the simulation measuring point; a fitting equation of the transverse force borne by the train is constructed; the field test wind taking speed and the field test train speed are obtained, and the fitting equation is corrected through the field test wind taking speed and the field test train speed; according to the real-time train speed and the real-time air taking speed, the real-time transverse force borne by the train is obtained; and when the instant transverse force borne by the train meets a set threshold value, an early warning signal is output. Early warning can be provided for the running safety of the existing tunnel train, guidance is provided for inclined shaft construction, and the running safety of the train is guaranteed.

    本发明公开了一种斜井施工通风既有隧道列车运行安全预警方法及系统,以解决现有技术中还没有在斜井施工下对既有隧道列车运行安全进行预警的问题。其中,预警方法包括步骤:拟定既有隧道内部风速测点位置;根据施工现场工况进行数值模拟计算,得到不同取风速度、不同列车车速下风速测点位置处的模拟测点风速;根据模拟测点风速得到列车所受横力;构建列车所受横力拟合方程;获取现场测试取风速度和现场测试列车车速并通过前两者对拟合方程进行修正;根据即时列车车速和即时取风风速得到列车即时所受横力;当所述列车即时所受横力满足设定阈值时,输出预警信号。本发明能够对既有隧道列车运行安全提供预警,为斜井施工作出指导,保证列车运行安全。


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    Titel :

    Train operation safety early warning method and system for inclined shaft construction ventilation existing tunnel


    Weitere Titelangaben:

    一种斜井施工通风既有隧道列车运行安全预警方法及系统


    Beteiligte:
    MA YINJUN (Autor:in) / ZHANG ZHENQIONG (Autor:in) / ZHANG LIANG (Autor:in) / KOU FABIN (Autor:in) / WU JIAN (Autor:in) / SHI XIANMING (Autor:in) / TIAN JINGWEI (Autor:in)

    Erscheinungsdatum :

    2023-03-21


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC



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