Publication detail

A numerical technique for assessing joint rock coefficients

FICKER, T.

Original Title

A numerical technique for assessing joint rock coefficients

English Title

A numerical technique for assessing joint rock coefficients

Type

conference paper

Language

en

Original Abstract

Joints in rocky massifs usually form a space network that is hidden under the surface of terrains. Although normally invisible, same parts of such networks may emerge when excavation work is running in terrains. The irregularity of joint rock surfaces are characterized by joint rock coefficients that serve for computations of shear strength of these joints. This is important for evaluation of the mechanical stability not only the rock joints themselves but also for the mechanical stability of rock massifs that are usually composed of the network of rock joints. The sear strength of rock joints is therefore critical for stability of the whole massif. The joint rock coefficients can be determined, among others, by the computerized procedure based on numerical indicators assessing the morphology of jointed surfaces. For the reliable assessing of rock joints, the numerical indicators should fulfill some properties that are subject of discussion presented in this contribution. The comparative principle used in geotechnics is explained in detail. This principle requires that the surface profiles may be compared on the basis of their dynamical compatibility. Their geometrical shape are therefore only auxiliary property but not the only decisive property. This fact is often omitted and, as a consequence, an incorrect assessment can be performed. All these points are discussed and explained.

English abstract

Joints in rocky massifs usually form a space network that is hidden under the surface of terrains. Although normally invisible, same parts of such networks may emerge when excavation work is running in terrains. The irregularity of joint rock surfaces are characterized by joint rock coefficients that serve for computations of shear strength of these joints. This is important for evaluation of the mechanical stability not only the rock joints themselves but also for the mechanical stability of rock massifs that are usually composed of the network of rock joints. The sear strength of rock joints is therefore critical for stability of the whole massif. The joint rock coefficients can be determined, among others, by the computerized procedure based on numerical indicators assessing the morphology of jointed surfaces. For the reliable assessing of rock joints, the numerical indicators should fulfill some properties that are subject of discussion presented in this contribution. The comparative principle used in geotechnics is explained in detail. This principle requires that the surface profiles may be compared on the basis of their dynamical compatibility. Their geometrical shape are therefore only auxiliary property but not the only decisive property. This fact is often omitted and, as a consequence, an incorrect assessment can be performed. All these points are discussed and explained.

Keywords

Rock joints; joint roughness coefficients; computer assessment; numerical indicators of similarity; database profiles.

Released

28.11.2017

Publisher

STEF92 Technology Ltd.

Location

Bulharsko

ISBN

978-619-7105-99-5

Book

17th International multidiciplinary scientific geoconference SGEM 2017

Edition

Science and Technologies in Geology, Exploration and Mining

Issue number

12

Pages from

25

Pages to

31

Pages count

7

URL

https://sgemworld.at/sgemlib/spip.php?article9028

Documents

BibTex 


@inproceedings{BUT141977,
  author="Tomáš {Ficker}",
  title="A numerical technique for assessing joint rock coefficients",
  annote="Joints in rocky massifs usually form a space network that is hidden under the surface of terrains. Although normally invisible, same parts of such networks may emerge when excavation work is running in terrains. The irregularity of joint rock surfaces are characterized by joint rock coefficients that serve for computations of shear strength of these joints. This is important for evaluation of the mechanical stability not only the rock joints themselves but also for the mechanical stability of rock massifs that are usually composed of the network of rock joints. The sear strength of rock joints is therefore critical for stability of the whole massif. The joint rock coefficients can be determined, among others, by the computerized procedure based on numerical indicators assessing the morphology of jointed surfaces. For the reliable assessing of rock joints, the numerical indicators should fulfill some properties that are subject of discussion presented in this contribution. The comparative principle used in geotechnics is explained in detail. This principle requires that the surface profiles may be compared on the basis of their dynamical compatibility. Their geometrical shape are therefore only auxiliary property but not the only decisive property. This fact is often omitted and, as a consequence, an incorrect assessment can be performed. All these points are discussed and explained.",
  address="STEF92 Technology Ltd.",
  booktitle="17th International multidiciplinary scientific geoconference SGEM 2017",
  chapter="141977",
  doi="10.5593/sgem2017/12/S02.004",
  edition="Science and Technologies in Geology, Exploration and Mining",
  howpublished="print",
  institution="STEF92 Technology Ltd.",
  number="12",
  year="2017",
  month="november",
  pages="25--31",
  publisher="STEF92 Technology Ltd.",
  type="conference paper"
}