Footage measurement method for tunneling machine

The present invention discloses a footage measurement method for a tunneling machine, and relates to the field of footage measurement technologies. In the measurement method, a distance measurement apparatus and a light reflection target are disposed, a laser beam is emitted to the light reflection target by using a laser sensor, the laser beam reflected by the light reflection target is received, and a time from sending to receiving the laser beam is determined based on a timer, so as to calculate a distance L from the laser sensor to the light reflection target, and to automatically measure a footage of the tunneling machine. In addition, a quantity C of returned light is monitored, whether the laser beam hits a target is determined based on the quantity of returned light, and a targeting process is started duly. In the footage measurement method for the tunneling machine disclosed in the present invention, the distance measurement apparatus and the light reflection target are disposed, to automatically measure the footage of the tunneling machine. Manual measurement is replaced with automatic measurement, measurement precision is high, and labor intensity is reduced. In addition, whether the laser beam hits the target is determined based on the quantity of returned light measured by the laser sensor, so as to start, as required, a steering engine tripod head for targeting, thereby further improving accuracy and completeness of distance measurement.