三维激光扫描技术在石质文物数值模拟中的应用  

Application of three-dimensional laser scanning technology in historic stone's numerical simulation

作　　者：史俊莉[1] 

机构地区：[1]河南工业职业技术学院城市建设学院,河南南阳473000

出　　处：《郑州轻工业学院学报（自然科学版）》2015年第5期70-75,共6页Journal of Zhengzhou University of Light Industry:Natural Science

基　　金：河南省科技厅青年科学基金项目(61403351)

摘　　要：为了精确模拟石质文物的稳定性,以云冈11号窟为研究对象,利用三维激光扫描仪快速精确获取石窟的表层点云数据,再利用ANASYS进行内部网络结构剖分,最后导入Flac3d对石窟整体进行数值模拟计算.结果表明:云冈11号窟岩体现阶段总体位移方向向下并向后倾斜,稳定性较好,随时间推移其应力集中逐渐向下部发展;对于底部风化凹槽部位若不采取防护措施,预测100 a以后,洞窟底部会由于应力集中而导致其失稳、破坏.基于此提出了相应的加固措施.In order to accurately simulate the structural stability of the stone relics,with Yungang 11 thGrotto as object,it used three-dimensional laser scanner quickly to accurately obtain caves surface array data,and ANASYS to make internal network structure split and finally imported Flac3 d on Grotto whole seismic response simulation. The result showed that： the overall direction of displacement of rock caves of Yungang the 11 thGrotto was a downward tilt with good stability over time and gradually downward portion with stress concentration. It was predicted that without taking protective measures for the bottom of the recessed portion weathering,the bottom of the cave would lead to instability in 100 years due to stress concentration destruction. Based on this corresponding reinforcement measures were proposed.

关 键 词：三维激光扫描仪 三维数值模拟 石质文物 稳定性 

分 类 号：K878[历史地理—考古学及博物馆学] K879.22[历史地理—历史学]