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

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 tak