文章基本信息

标题：Application of Digital Photogrammetry In Geotechnics
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作者：R. Roncella ; M. Scaioni ; G. Forlani 等
期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2004
卷号：XXXV Part B5
页码：93-98
出版社：Copernicus Publications
摘要：Acquiring geometric data, such as coordinates, displacements or deformations, has always been a way to verify mathematical modelling in civil engineering. The introduction of finite elements methods further reinforced this trend. This paper reports on two applications of photogrammetry to soil and rock mechanics in order to provide an accurate and dense description of the deformation fields of sand specimens in different loading conditions. In the first case, the displacements induced by a foundation under load in sand layers are traced until the collapse of the terrain with accuracies in the order of about 20 micrometers in object space. In the latter, the trajectories of particles, tied to a sloping sand specimen that slides along a plane, are determined with an accuracy of about 3 mm at a rate of 22 fps. In both examples, the measurement runs automatically, the only interaction required being the test setup
关键词：Geology; Engineering; Close Range; Digital; Photogrammetry