A numerical technique for assessing joint rock coefficients

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F17%3APU125611" target="_blank" >RIV/00216305:26110/17:PU125611 - isvavai.cz</a>

Výsledek na webu

<a href="https://sgemworld.at/sgemlib/spip.php?article9028" target="_blank" >https://sgemworld.at/sgemlib/spip.php?article9028</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5593/sgem2017/12/S02.004" target="_blank" >10.5593/sgem2017/12/S02.004</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A numerical technique for assessing joint rock coefficients

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

A numerical technique for assessing joint rock coefficients

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10504 - Mineralogy

Projekt

<a href="/cs/project/GA13-03403S" target="_blank" >GA13-03403S: Morfologická analýza lomových povrchů a její důsledky pro stabilitu velkých civilně-inženýrských staveb</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

17th International multidiciplinary scientific geoconference SGEM 2017

ISBN

978-619-7105-99-5

ISSN

1314-2704

e-ISSN

—

Počet stran výsledku

7

Strana od-do

25-31

Název nakladatele

STEF92 Technology Ltd.

Místo vydání

Bulharsko

Místo konání akce

Albena

Datum konání akce

27. 6. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—