The Variation Measurement of a Slope By Photogrammetry


The Variation Measurement of a Slope By Photogrammetry
07/01/2007 | Shun-Kung Chang, Fu-Jong Liang, Der-Her Lee
Proceedings of the Sixteenth (2007) International Offshore and Polar Engineering Conference, Lisbon, Portugal, July 1-6, 2007
Applications: All, Engineering & Science, Geology & Mining, and Surveying

Slope failures and landslides associated with earthquakes and typhoons are major natural hazards in Taiwans mountain highways. This paper attempts to apply photogrammetry technique to carry out speedy in-situ survey. We firstly create the three-dimensional (3D) model of a brick wall and validate that the average error is 0.28 mm in the measured distance. Afterward, the same measurement procedures are applied in an in-situ mudstone slope. The average error in the estimated distance is 0.41cm. Therefore, the investigating result guarantees the accuracy of applying Photogrammetry to investigate the geometry of in-situ failed slope.

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