Monolithic roadbed dynamic deformation monitoring device

The utility model discloses a monolithic roadbed dynamic deformation monitoring device, relating to the technical field of existed tunnel monolithic roadbed deformation monitoring and measurement. The monolithic roadbed dynamic deformation monitoring device comprises a tripod, a round pen container and a data acquisition paper fixing means. A fixed end of the tripod is provided with expansion bolts. The round pen container is fixed at the front end of the tripod by bolts. The data acquisition paper fixing means is fixed on a monolithic roadbed by expansion bolts at a height corresponding to that of the round pen container. The monolithic roadbed dynamic deformation monitoring device provided by the utility model has the advantages of simplicity in production technology, low requirements on environment, high adaptability to the field, and convenience in assembly and disassembly, and can be used repeatedly, thereby effectively controlling the cost, and effectively solving the problems in the monitoring and measurement of roadbed slab deformation in an existed railway tunnel monolithic roadbed damage treating process.