Combined measuring device for stratum deformation

The utility model discloses a combined measuring device for stratum deformation. The combined measuring device includes a measuring mark rod and a static force level automatic monitoring system. A sleeve is arranged outside the measuring mark rod. The measuring mark rod and the sleeve are both provided with level marks and are connected to the static force level automatic monitoring system. The measuring mark rod acts as a base rock marker and a layer marker at the same time. According to the utility model, synchronization of leveling and monitoring of the base rock and layer marker is realized. Stratum deformation absolute values are obtained through long-period leveling for correct deformation values of the base rock marker, so as to realize the correction of monitoring values of the layer marker. By using the static force level automatic monitoring method employing the base rock and layer marker, the high-frequency monitoring of absolute values of stratum deformation is realized and fusion of high-frequency monitoring and absolute value acquiring is realized, so that more reasonable stratum deformation monitoring data is obtained.