Research on measurement and control method of swivel bridge across railway

In order to improve the construction quality of swivel bridge, the measurement control method of swivel bridge across railway is studied. According to the actual situation of the project, the construction control network of the swivel bridge of plane and elevation railway is constructed. According to the change of the position of control points, the first level position value of different measuring control areas can be adjusted in time. GPS technology is introduced to control the precision of construction survey by adjusting the control network. The experimental results show that the method can effectively improve the measurement accuracy and guarantee the construction quality of railway swivel bridge