摘要
2008年汶川大地震对很多重要文物都造成了一定程度上的损毁,如陕西省三原县城隍庙两个铁旗杆中的一个倒塌并摔断,如何利用现存完整的文物来指导损坏文物的修复已成为文物保护界的研究热点之一。铁旗杆的稳定性很大程度上取决于形状、材质和环境。首次将三维激光扫描技术用于对损毁文物的评估和保护,基于三维激光点云分别建立了铁旗杆的数字正射影像图,并通过对现存完整铁旗杆和损坏铁旗杆的剖面图和立面图进行比较和分析,来指导破损文物的修复。最后,以陕西省三原县城隍庙破损铁旗杆的修复为例,验证了相关方法的实用性。
Safety and stability of historical structures are of key importance when dealing with a restoration project after Wenchuan Earthquick. The stability of ironware mast very much depends on its overall geometry and the analysis results strongly depend on the accuracy in which this geometry can be measured in practice. To obtain an accurate estimate of the geometry of the vaults, 3D-laser scanning was performed. Based on the 3D-point cloud, a 3D-model and DOM of the ironware mast was created. This contribution gives a critical appraisal of the process used in the preliminary research phase: gathering the point clouds, 3D-modelling, structural analysis calculating thrust lines and the consolidation requirements that are obtained. In the end, the relative method will be validated.
出处
《系统仿真学报》
CAS
CSCD
北大核心
2009年第S1期265-268,共4页
Journal of System Simulation
基金
国家自然科学基金(407011524047110840301042)
关键词
三维激光扫描
修复
铁旗杆
数字正射影像图
3D-laser scanning
restoration
Ironware Mast
Digital Orthophoto Map(DOM)
