Monitoring equipment for ground surface settlement based on subway shield tunnel

The utility model relates to monitoring equipment for ground surface settlement based on a subway shield tunnel, which comprises a mounting base, four corners of the mounting base are respectively provided with a group of foundation bolts, an elastic piece is mounted on the mounting base, two ends of the mounting base are respectively provided with a group of fixing blocks in a sliding manner, and the inner end of each fixing block is of a wedge block structure. A monitoring box is slidably mounted on the mounting base, the front end and the rear end of the monitoring box are each provided with a side mounting groove, a settling rod is slidably mounted at the bottom end of the monitoring box, a mounting plate is fixedly mounted at the top end of the settling rod, and a displacement sensor is fixedly mounted at the rear end in the monitoring box. The left end and the right end of the monitoring box body are each provided with a set of side fixing grooves, the fixing blocks at the two ends of the mounting base