摘要
在分析目前采矿工程物理模型变形测量方法的基础上,使用普通数码相机,采用多重交向摄影方式拍摄工况物理模型的影像,按摄影测量严密的光束法平差模型计算工况模型上布置的为数众多的变形监测点坐标,进而统计各点的累积位移量,并绘制累计位移矢量图。测量结果表明,变形监测点的坐标测定精度高于±0.20mm,所测位移场与实际变形情况一致,满足采矿工程相似性材料物理模型变形观测的要求。
We introduce the theory and application of digital close range photogrammetry in deformation measurement of mine physical model.A ordinary digital SLR camera is employed and multi-intersection photography is used to take images of mine physical model in the project.The photogrammetric bundle adjustment is applied to compute object space coordinates of artificial deformation monitoring target points on the surface of mine model.Then the cumulative displacement of each deformation monitoring target point is calculated based on their object coordinates and the cumulative displacement vector maps are drawn.The accuracy of plane coordinates is better than ±0.20 mm according to measurement results.The displacement field measured is the same as the actual deformation.The measurement result is satisfactory to the requirement of deformation measurement of mine similar material model.
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2012年第11期1294-1298,共5页
Geomatics and Information Science of Wuhan University
基金
国家973计划资助项目(2012CB719902)
关键词
采矿工程
物理模型
近景摄影测量
变形测量
mine engineering
physical model
close range photogrammetry
deformation measurement
