Application of three-dimensional laser scanning technique in deformation monitoring of excavations

The principles of three-dimensional laser scanning system, causes of error and data processing methods in monitoring of excavations are introduced. A preliminary study on the application of three-dimensional laser technology in deformation monitoring of excavations is conducted. The technical advantages and the problems of three-dimensional laser scanning system in the excavation monitoringare discussed and analyzed. It is of guiding significance for the practical application of?excavation monitoring.