Publication detail

Computer Evaluation of Asperity Topology of Rock Joints

FICKER, T. MARTIŠEK, D.

Original Title

Computer Evaluation of Asperity Topology of Rock Joints

English Title

Computer Evaluation of Asperity Topology of Rock Joints

Type

conference paper

Language

en

Original Abstract

Grounds beneath large civil engineering structures (bridges, dams, tunnels) that are established in the terrain of rock discontinuities represent a risk of mechanical failure. The surface topology of joint surfaces strongly influences shear strength of these discontinuities. It is the asperities that mainly determine the surface topologies and the asperities are characterized by the so-called joint roughness coefficients. In geotechnical practice the joint roughness coefficients are often evaluated visually using ten standard two-dimensional profiles. The visual assessment is rather a subjective procedure but it may be replaced by a computer procedure. The present paper deals with a computerized assessment of joint roughness coefficients. For this purpose the Fourier formalism is employed and works as an expert system recognizing surface topologies.

English abstract

Grounds beneath large civil engineering structures (bridges, dams, tunnels) that are established in the terrain of rock discontinuities represent a risk of mechanical failure. The surface topology of joint surfaces strongly influences shear strength of these discontinuities. It is the asperities that mainly determine the surface topologies and the asperities are characterized by the so-called joint roughness coefficients. In geotechnical practice the joint roughness coefficients are often evaluated visually using ten standard two-dimensional profiles. The visual assessment is rather a subjective procedure but it may be replaced by a computer procedure. The present paper deals with a computerized assessment of joint roughness coefficients. For this purpose the Fourier formalism is employed and works as an expert system recognizing surface topologies.

Keywords

Rock joints; joint roughness coefficients; Fourier’s formalism; indicators of surface topology.

RIV year

2015

Released

07.09.2015

Publisher

Elsevier

Location

Holandsko

ISBN

978-80-970698-4-1

Book

WMESS 2015 Abstract Collection

Issue number

1

Pages from

125

Pages to

132

Pages count

8

URL

http://www.sciencedirect.com/science/article/pii/S1878522015002945

Full text in the Digital Library

http://hdl.handle.net/11012/201070

Documents

BibTex 


@inproceedings{BUT120880,
  author="Tomáš {Ficker} and Dalibor {Martišek}",
  title="Computer Evaluation of Asperity Topology of Rock Joints",
  annote="Grounds beneath large civil engineering structures (bridges, dams, tunnels) that are established in the terrain of rock discontinuities represent a risk of mechanical failure. The surface topology of joint surfaces strongly influences shear strength of these discontinuities. It is the asperities that mainly determine the surface topologies and the asperities are characterized by the so-called joint roughness coefficients. In geotechnical practice the joint roughness coefficients are often evaluated visually using ten standard two-dimensional profiles. The visual assessment is rather a subjective procedure but it may be replaced by a computer procedure. The present paper deals with a computerized assessment of joint roughness coefficients. For this purpose the Fourier formalism is employed and works as an expert system recognizing surface topologies.",
  address="Elsevier",
  booktitle="WMESS 2015 Abstract Collection",
  chapter="120880",
  doi="10.1016/j.proeps.2015.08.031",
  howpublished="online",
  institution="Elsevier",
  year="2015",
  month="september",
  pages="125--132",
  publisher="Elsevier",
  type="conference paper"
}