应用研究 2025年 第卷 第15期

DOI: 10. 7672 / sgjs2025150142

基于三维激光扫描的馆藏文物减振加固技术研究

王清朋¹,张安东¹,桑文刚²,侯宏涛³,徐 阳⁴,韩志国³,范润祥¹

作者简介:

王清朋,高级工程师,E⁃mail:wangqp2007@ 163. com

作者单位:

1. 山东建大工程鉴定加固设计有限公司,山东 济南 250014; 2. 山东建筑大学测绘地理信息学院,山东 济南 250101; 3. 山东建筑大学工程鉴定加固研究院有限公司,山东 济南 250014; 4. 山东建固特种专业工程有限公司,山东 济南 250014

基金项目:

∗国家自然科学基金面上项目(42374049);山东省自然科学基金面上项目(ZR2022MD103);山东省重点研发计划(2019GSF111052)

摘要:

某博物馆馆藏佛像受邻近工程建设产生的施工振动影响,可能造成不可逆的损伤,需实现文物信息数字化采集,以采取有效的减振加固措施. 设计合理的减振设计方案与施工流程,采用三维激光扫描技术对佛像进行测绘,通过构建 Delaunay 三角网格模型及纹理映射,实现真实丰富的佛像三维可视化. 采用 Canny 算法边缘检测与人工判读相结合的方法绘制佛像立面图,为防倾覆骨架网设计与施工提供基础信息. 基于点云数据,运用点云切片法计算佛像质量,并与 PLC 系统称重值进行对比;运用数值积分法计算佛像重心坐标,并与 Geomagic 软件计算结果进行对比. 研究结果表明,基于三维激光扫描技术得到的佛像质量和重心坐标计算误差在允许范围内,为馆藏文物减振设计与施工提供了较准确可靠的基础数据.

English:

The Buddha statues in a museum may cause irreversible damage due to the constructionvibration caused by the adjacent project. It is necessary to realize the digital collection of cultural relicsinformation to take effective vibration reduction and reinforcement measures. A reasonable vibrationreduction design scheme and construction process are designed. The 3D laser scanning technology is usedto map the Buddha statues. By constructing Delaunay triangular mesh models and texture mapping, thereal and rich 3D visualization of the Buddha statues is realized. The combination of Canny algorithm edgedetection and manual interpretation is used to draw the facade of the Buddha statues, which providesbasic information for the design and construction of the anti⁃overturning framework. Based on the pointcloud data, the weight of the Buddha statues is calculated by the point cloud slicing method andcompared with the weighing value of the PLC system. The numerical integration method is used tocalculate the barycenter coordinates of the Buddha statues and compared with the calculation results ofGeomagic software. The research results show that the calculation errors of the weight and barycentercoordinates of the Buddha statues obtained based on the 3D laser scanning technology are within theallowable range, which provides more accurate and reliable basic data for the vibration reduction designand construction of the cultural relics.