Feasibility Study on Angle Integral Deformation Measurement Method of Inclination Sensor in Existing Railway Deformation Monitoring

In order to monitor the influence of the actual project construction on the existing subway structure, it is necessary to monitor the deflection of the existing subway structure in the construction process. At present, the total station is used to measure the deformation of the project. Practice has proved that the total station measurement method has a high cost of instruments and personnel, the layout of measuring points is difficult and easy to be damaged, and the monitoring conditions are relatively harsh. The angle integral deformation measurement method of inclination sensor is adopted for the deformation monitoring of existing railway. The method mainly uses the high-precision inclination sensor to measure the sectional angle of the existing subway structure, and then calculates the deformation of the subway structure by subsection integral deformation. This method has a mature application in the horizontal displacement measurement of deep foundation pits, but it is an innovative application in the deformation measurement of subway.