Underground mine main ore pass material level real-time monitoring system and method

The invention relates to an underground mine main ore pass material level real-time monitoring system and method. The system comprises a vibrating wire type stress meter, a four-channel vibrating wiredata collector and a data cable. The vibrating wire type stress meter is buried in the wall of a main ore pass at the bottom corner of the main ore pass, the vibrating wire data collector is arrangedat the top of a stage haulage roadway, and the vibrating wire type stress meter is electrically connected with the vibrating wire data collector through the data cable; and the vibrating wire data collector is connected with a ground dispatching room remote server through a network in a mine. According to the method, through a mode of burying the vibrating wire type stress meter in the supportingconcrete at the bottom of the main ore pass, a pressure value of a borehole wall is obtained; through a Janssen formula, a relation between the lateral pressure f of the bottom well wall of the ore pass and the material level