Publication detail

Alternative Method for Assessing the Roughness Coefficients of Rock Joints

FICKER, T. MARTIŠEK, D.

Original Title

Alternative Method for Assessing the Roughness Coefficients of Rock Joints

English Title

Alternative Method for Assessing the Roughness Coefficients of Rock Joints

Type

journal article in Web of Science

Language

en

Original Abstract

The roughness of rock joints is a relevant factor considerably influencing the shear strength of rock masses, which is critical for the mechanical stability of large civil engineering structures. One of the geotechnical methods for determining the roughness coefficients of rock joints is on the basis of the visual comparison of the joint surfaces with the standard two-dimensional profiles whose roughness coefficients are known. Visual comparison is rather a subjective method, but it may be improved by a fully computerized image recognition procedure, and the two-dimensional standard profiles may be replaced by three-dimensional database profiles. To attain a higher stage of objectivity, a new alternative method was proposed on the basis of the application of Fourier’s formalism to three-dimensional surface profiles. The image database recognition was facilitated by introducing two parameters that were defined as height and shape indicators of surface reliefs.

English abstract

The roughness of rock joints is a relevant factor considerably influencing the shear strength of rock masses, which is critical for the mechanical stability of large civil engineering structures. One of the geotechnical methods for determining the roughness coefficients of rock joints is on the basis of the visual comparison of the joint surfaces with the standard two-dimensional profiles whose roughness coefficients are known. Visual comparison is rather a subjective method, but it may be improved by a fully computerized image recognition procedure, and the two-dimensional standard profiles may be replaced by three-dimensional database profiles. To attain a higher stage of objectivity, a new alternative method was proposed on the basis of the application of Fourier’s formalism to three-dimensional surface profiles. The image database recognition was facilitated by introducing two parameters that were defined as height and shape indicators of surface reliefs.

Keywords

Shear strength; rock mechanics; numerical modeling; geotechnical engineering

Released

12.07.2016

Publisher

American Society for Civil Engineers

Location

USA

ISBN

0887-3801

Periodical

JOURNAL OF COMPUTING IN CIVIL ENGINEERING

Year of study

30

Number

4

State

US

Pages from

224

Pages to

238

Pages count

15

URL

http://dx.doi.org/10.1061/(ASCE)CP.1943-5487.0000540

Documents

BibTex 


@article{BUT126640,
  author="Tomáš {Ficker} and Dalibor {Martišek}",
  title="Alternative Method for Assessing the Roughness Coefficients of Rock Joints",
  annote="The roughness of rock joints is a relevant factor considerably influencing the shear strength of rock masses, which is critical for the mechanical stability of large civil engineering structures. One of the geotechnical methods for determining the roughness coefficients of rock joints is on the basis of the visual comparison of the joint surfaces with the standard two-dimensional profiles whose roughness coefficients are known. Visual comparison is rather a subjective method, but it may be improved by a fully computerized image recognition procedure, and the two-dimensional standard profiles may be replaced by three-dimensional database profiles. To attain a higher stage of objectivity, a new alternative method was proposed on the basis of the application of Fourier’s formalism to three-dimensional surface profiles. The image database recognition was facilitated by introducing two parameters that were defined as height and shape indicators of surface reliefs.
",
  address="American Society for Civil Engineers",
  chapter="126640",
  doi="10.1061/(ASCE)CP.1943-5487.0000540",
  howpublished="print",
  institution="American Society for Civil Engineers",
  number="4",
  volume="30",
  year="2016",
  month="july",
  pages="224--238",
  publisher="American Society for Civil Engineers",
  type="journal article in Web of Science"
}