Application of Surveying and Mapping New Technology in Historical Building Protection

The rapid development of the city makes more urgent protection of Architectural Heritage. In the city overall planning, we need to know the cultural relic building location, height and shape. On the cultural relics repair and maintenance, we need to know the size of the cultural relic, internal structure and various disease information. It can quickly build three-dimensional model of cultural relics with the use of 3D laser scanning technology, and also we can get the accurate position of cultural relics and the relationship between each part. Ground Penetring Radar can find the relics of internal structure and comprehensive detection of disease. With the two new mapping technologies, we can make a comprehensive examination of cultural relics.