Geology & Mining Articles

This report presents the potential of close range photogrammetry for mining and reclamation. The mining reclamation community depends on accurate mapping for almost all activities. Traditional ground surveys are adequate for small, uncomplicated jobs but at some point, the size and or complexity of a project makes it more economical to have a site flown (mapped using aerial photogrammetry). Because of cost, most projects are only flown at the start and less often when completed. Close Range Photogrammetry (CRP) offers much potential for measuring features that cant or aren’t being measured otherwise.

Slope failures and landslides associated with earthquakes and typhoons are major natural hazards on Taiwan’s mountain highways. This paper attempts to apply photogrammetry techniques to carry out a speedy in-situ survey. We first 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 to 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. (the local copy is the first page).

Using physical clay models scientists can study tectonic processes that take millions of years to occur naturally. The use of these physical models is not widespread because their construction and analysis is commonly labor-intensive work that yields largely qualitative information. Through the use of PhotoModeler the authors demonstrate the measurement of these models in an automated and highly quantitative manner. External link is to abstract – full article available to member or for purchase.