Abstract
Abstract. In the case study of Guanghua Pavilion [光化楼] located in Jiayuguan [嘉峪关] City, Gansu province in China, the 3D laser scanning technology and leveling technology are used to analyze overall tilt, columns tilt and uneven settlement of the pavilion. It is found that Guanghua Pavilion [光化楼] tilted to the southeast; most of the columns from the first floor to the third floor tilted to the northeast and east directions, and all the tilted distance of the columns is within 100 mm.; a certain amount of uneven settlement happened on Guanghua Pavilion [光化楼], in which the east side sinks more obviously. In the process of analyzing the influencing factors of deformation, numerical wind tunnel simulation and Midas Gen modeling methods are used. It is concluded that the external wind load is the main cause of Jiayuguan [嘉峪关] pavilions’ deformation.
Highlights
Jiayuguan [ 嘉 峪 关 ] is located in the northwest of Gansu Province in China, at an altitude of 1725 meters
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Volume XLII-2/W11, 2019 GEORES 2019 – 2nd International Conference of Geomatics and Restoration, 8–10 May 2019, Milan, Italy points more precise, the target ball and target paper should be set as markers
We used the FARO Focus3D X330 3D laser scanner to obtain the point cloud of the pavilions, which was spliced according to the control points, so we could get the complete point cloud images (Bai et al 2013a; Yastikli, 2007a)
Summary
Jiayuguan [ 嘉 峪 关 ] is located in the northwest of Gansu Province in China, at an altitude of 1725 meters This ancient important military fortress is the western starting point of the Great Wall of the Ming Dynasty, and it was listed by UNESCO in the World Cultural Heritage List in 1987. In the famous ancient Chinese painting, Menggu Landscape Map [蒙古山水地图], Guanghua Pavilion [光化楼] is drawn on the first volume, which indicates the significant historical position of Jiayuguan [ 嘉 峪 关 ] in ancient China. Jiayuguan [ 嘉 峪 关 ] pavilions reflect the glory of Chinese history and represent China's great achievements in culture, art and science. It has been 500 years since the pavilions were established. We can prepare for future repairs and protection work and provide technical support
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