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Terrestrial laser scanning in the construction of a numerical model geometry related to underground post-mining facility Cover

Terrestrial laser scanning in the construction of a numerical model geometry related to underground post-mining facility

Open Access
|Jun 2024

Figures & Tables

Figure 1:

Visualization of the entrance to the underground track “St. Johannes” Mine in Krobica (Kobylańska, 2012).
Visualization of the entrance to the underground track “St. Johannes” Mine in Krobica (Kobylańska, 2012).

Figure 2:

Location of the scanned 7.5-m fragment of the adit on the underground track “St. Johannes” Mine in Krobica. In the vicinity of the measurement site, there is a shaft connecting both adits (St. Leopold below and St John above).
Location of the scanned 7.5-m fragment of the adit on the underground track “St. Johannes” Mine in Krobica. In the vicinity of the measurement site, there is a shaft connecting both adits (St. Leopold below and St John above).

Figure 3:

Trimble TX8 laser scanner during measurements in the St. John adit.
Trimble TX8 laser scanner during measurements in the St. John adit.

Figure 4:

The intensity of the laser beam reflection in the adit (the black spot is a fragment of the sidewall closer than 60 cm from the scanner).
The intensity of the laser beam reflection in the adit (the black spot is a fragment of the sidewall closer than 60 cm from the scanner).

Figure 5:

“Point cloud” visualization of a fragment of the St. John adit, displayed by the value of the reflection intensity parameter.
“Point cloud” visualization of a fragment of the St. John adit, displayed by the value of the reflection intensity parameter.

Figure 6:

(a–c) Generating 2D cross sections from (a) “point cloud” in CloudCompare software and (d, e) dimensioning of a selected characteristic cross section.
(a–c) Generating 2D cross sections from (a) “point cloud” in CloudCompare software and (d, e) dimensioning of a selected characteristic cross section.

Figure 7:

(a, b) Creating the cross sectional geometry of the scanned fragment of the adit and (c, d) its discretization in FLAC 3D Itasca v.9.0 software, sketch option.
(a, b) Creating the cross sectional geometry of the scanned fragment of the adit and (c, d) its discretization in FLAC 3D Itasca v.9.0 software, sketch option.

Figure 8:

Geometry obtained for the quasi-3D numerical model of the underground excavation in the FLAC 3D Itasca v.9.0 program.
Geometry obtained for the quasi-3D numerical model of the underground excavation in the FLAC 3D Itasca v.9.0 program.
DOI: https://doi.org/10.2478/sgem-2024-0007 | Journal eISSN: 2083-831X | Journal ISSN: 0137-6365
Language: English
Page range: 125 - 134
Submitted on: Apr 3, 2024
Accepted on: May 10, 2024
Published on: Jun 7, 2024
Published by: Wroclaw University of Science and Technology
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2024 Maciej Bodlak, Jakub Izydorski, published by Wroclaw University of Science and Technology
This work is licensed under the Creative Commons Attribution 4.0 License.