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Proceedings Paper

Application of 3D laser scanning technology in the investigation of the Ms8.0 Wenchuan Earthquake surface ruptures
Author(s): Feng Li; Xi-wei Xu; Gui-hua Chen; Shao-peng Dong; Yan-fen An
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Paper Abstract

As the scientific investigation on the Ms8.0 Wenchuan earthquake demonstrates, the landscapes of co-seismic surface ruptures or structure destructions were rapidly destroyed by storms or secondary disasters. Traditional survey methods often are limited by the environment and do not provide perfect information about the deformation value in a timely manner. The 3D laser scanner, on the other hand, can work under varying light conditions and does not require contact with the destroyed objects. Its prompt completion of a pan-shot makes it possible to efficiently record a wealth of information about the earthquake deformations, ensuring the quantitative analysis of related data. Its disadvantages include costliness, unwieldiness and high-temperature-environmental inadequacy, etc. In this paper, focusing on some examples, we explore the characteristics of 3D laser scanning technology used in the micro-geomorphology survey and discuss its advantages and limitations. We also describe the data processing methods and results. This includes the deformation values of the co-seismic surface ruptures or the merged impressions by 3D scanning data and full view photo. In conclusion, 3D laser scanning has a wide range of prospects in micro-geomorphology surveying and earthquake investigation. We then make some proposals such as using wireless transmission that can improve its environmental adaptability.

Paper Details

Date Published: 30 October 2009
PDF: 9 pages
Proc. SPIE 7498, MIPPR 2009: Remote Sensing and GIS Data Processing and Other Applications, 74984P (30 October 2009); doi: 10.1117/12.833039
Show Author Affiliations
Feng Li, China Earthquake Administration (China)
China Earthquake Disaster Prevention Ctr. (China)
Xi-wei Xu, China Earthquake Administration (China)
Gui-hua Chen, China Earthquake Administration (China)
Shao-peng Dong, China Earthquake Administration (China)
Yan-fen An, China Earthquake Administration (China)

Published in SPIE Proceedings Vol. 7498:
MIPPR 2009: Remote Sensing and GIS Data Processing and Other Applications
Faxiong Zhang; Faxiong Zhang, Editor(s)

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