Sunken degree measuring device based on bridge design

The utility model discloses a bridge design-based sinkage measuring device, and relates to the technical field of bridges. The device comprises a fixed frame capable of being fixed on a bridge pier and a fixed seat capable of being fixed on the ground, the fixed frame and the fixed seat are connected through a detection piece, a liquid level display tube is arranged on the detection piece, and when the fixed frame and the fixed seat generate relative displacement in the vertical direction, the liquid level display tube can display the liquid level of the bridge pier. And the liquid level in the liquid level display tube changes accordingly. According to the utility model, in the process that the pier drives the fixed frame to move downwards, the vertical displacement between the fixed frame and the fixed seat can be displayed on the liquid level display tube through the detection piece, and the downward moving degree is in direct proportion to the liquid level change, so that compared with the prior art, the