Productivity Analysis for the 3D Digitization of Earthwork Sites Based on Scanning Conditions Jae-woo Park and Seok Kim
International Journal of Railway, vol. 11, no. 1, pp.1-9, 2018
Abstract : 3D scanners are frequently used in the construction industry to measure terrestrial displacement, inspect tunnel
shapes, and determine dam displacement. In recent years, 3D scanners are frequently employed for digitization of
earthwork sites where the data generated is used to guide earthwork equipment. However, there is an absence of an
established guideline for effective 3D scanning, and the operation is often left to the discretion of on-site supervisors
or surveyors. This study aimed to determine the most effective 3D scanning method for the digitization of
earthwork sites. By performing on-site tests, we conducted a comparative analysis for the number of scans, scan
resolution, and registration method. The effectiveness of these parameters was determined based on scanning precision
and operation duration. According to our results, the highest productivity was achieved when on-site measurements
were conducted in mid to low resolution or low resolution and when post-processing was performed
through the ¡®Cloud to Cloud¡¯ method. Our results also showed that the number of scans was not as significant as
effective placement of the scans.
Keyword :
Terrestrial Laser Scanner, Earthwork Site, Productivity Analysis, Optimized Scanning Platform
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