Multi - measuring point based tunnel deformation monitoring device

Abstract

The present utility model refers to the technical field of tunnel monitoring, in particular to a tunnel deformation monitoring device based on multiple measuring points. The aim of this utility model is to solve the technical problem of the inability to increase the randomness of the arrangement of monitoring points within a tunnel in the prior art. More specifically, a structure for connecting the rails of a mobile monitoring vehicle (1) is configured to be mounted on a gripping coupling element (20) located within a predefined monitoring area (1001); a horizontal monitoring frame (100) is configured to be mounted thereon with two sets of first distance measuring instruments (A1), with the monitoring emission ends of the two sets of first distance measuring instruments (A1) facing the measuring lines of the wall (2); two sets of second distance measuring instruments (A1) are mounted on a sector-shaped element (201), with the monitoring emission ends of the two sets of second distance measuring instruments (A2) facing random measuring points (3) on the arc surface of the tunnel; and a set of third distance measuring instrument (A3), with the monitoring emission end of third distance measuring instruments (A3) facing the upper measuring point (4) in the upper part of the tunnel. The technical solution of this utility model enables stable monitoring of the measuring points in the horizontal and vertical directions, and also enables monitoring of the measuring points on the arc surface of the tunnel wall. In particular, the arrangement of the measuring points on the surface of the tunnel wall is more flexible, which improves the random monitoring characteristics.