Přístupnostní navigace
E-application
Search Search Close
Publication detail
FICKER, T.
Original Title
A new method for reconstructions of rock reliefs
Type
conference paper
Language
English
Original Abstract
The irregularity of rock joints in rocky terrains contributes considerably to better mechanical stability of these terrains. The assessment of the stage of surface irregularities (asperities) of jointed surfaces in rock massifs plays an important role when shear strength of rock joints are evaluated. For this purpose it is necessary to analyze morphology of surface reliefs of rock joints. The digital replicas of surface reliefs are ideal tools for such a morphology analysis. This paper describes a new method for digital three-dimensional (3D) reconstructions of surfaces of rock joints whose sizes may amounts several centimeters up to several meters. This method is therefore applicable to small as well as large parts of rock joints and thus it may be used not only in laboratories but also in open fields. The device includes commercially available components on affordable financial level and thus it is especially convenient for small research groups whose financial possibilities are limited. The philosophy of the device is based on the sectional technique. This technique reconstructs the 3D reliefs by means of optical images that are captured subsequently in the vertical direction above the solid surface with a constant step. Stepping the camera vertically with a step that is smaller then the depth of optical field, a convenient set of optical sections may be obtained from which the sophisticated software creates the 3D relief.
Keywords
Rock joints; asperities; joint roughness coefficients; devices for 3D scanning; 3D reliefs of rock joints.
Authors
Released
28. 11. 2017
Publisher
STEF92 Technology Ltd
Location
Bulharsko
ISBN
978-619-7105-99-5
Book
17th International multidisciplinary scientific geoconference SGEM 2017
Edition
Science and Technologz, Exploration and Mining
Edition number
1
1314-2704
Periodical
International multidisciplinary geoconference SGEM
Year of study
17
Number
12
State
Republic of Bulgaria
Pages from
19
Pages to
24
Pages count
6
URL
https://sgemworld.at/sgemlib/spip.php?article9027
BibTex
@inproceedings{BUT141974, author="Tomáš {Ficker}", title="A new method for reconstructions of rock reliefs", booktitle="17th International multidisciplinary scientific geoconference SGEM 2017", year="2017", series="Science and Technologz, Exploration and Mining", journal="International multidisciplinary geoconference SGEM", volume="17", number="12", pages="19--24", publisher="STEF92 Technology Ltd", address="Bulharsko", doi="10.5593/sgem2017/12/S02.003", isbn="978-619-7105-99-5", issn="1314-2704", url="https://sgemworld.at/sgemlib/spip.php?article9027" }