Settlement and Deformation Monitoring of Road-Bridge Transition Section Based On 3D Laser Scanning Technology

With the all-round development of basic engineering across the country, in order to ensure its safety during construction and operation, as well as scientific and reliable deformation monitoring for building design and management, three-dimensional laser scanning technology is very good in terrain survey and deformation monitoring. Not only can the impact of environmental factors be controlled to a minimum, but also data can be collected at a faster collection speed. Three-dimensional laser scanning technology is continuously being introduced into architectural engineering design. Using three-dimensional laser scanning technology to monitor the settlement and deformation of the road-bridge transition section can effectively reduce the incidence of near-accidents and minimize the losses caused by road-bridge accidents. The main research content of this paper is the research and analysis of three-dimensional laser scanning technology combined with the detection of settlement and deformation in the transition section between roads and bridges. Three-dimensional laser scanning technology is a reflection method of transmitting laser to receive the reflected laser signal of the target, and scanning the three-dimensional space in a non-contact manner, fully automatic and high-precision fast The goal in, to achieve three-dimensional large-scale, high-precision, high-resolution point coordinate data. The final result of the research shows that the linear interpolation error of the first period is 2.4mm, the nearest neighbor interpolation and polynomial interpolation are 2.4mm and 2.8mm, respectively. According to regulations, the allowable error of measurement in the settlement monitoring of the transition section of road and bridge should be within 3mm, indicating that the three-dimensional laser scanning technology has a good use effect.