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Entry: Q-Barton index

URI: https://data.geoscience.fr/ncl/ObsProp/530

Index introduced by Barton, that provides an quantitative estimate of the quality of rock mass. It is calculated from 6 parameters : Le RQD, Jn : Joint set number, Jr Joint roughness number, Ja : Joint alteration number, Jw : Joint water reduction factor, SRF : Stress reduction factor

Core metadata

is a quantity kind | observed property | Concept
category 14
changed on 19 May 2025 08:23:16.934
submitted byHélène Bressan
accepted on 27 Apr 2022 11:53:07.294

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date accepted 27 Apr 2022 11:53:07.294
date submitted 27 Apr 2022 11:24:35.903
definition
entity Q-Barton index
source graph graph

description
en Index introduced by Barton, that provides an quantitative estimate of the quality of rock mass. It is calculated from 6 parameters : Le RQD, Jn : Joint set number, Jr Joint roughness number, Ja : Joint alteration number, Jw : Joint water reduction factor, SRF : Stress reduction factor
fr Indice introduit par Barton qui fournit une estimation quantitative de la qualité du massif rocheux à partir de 6 paramètres : Le RQD, Jn : Joint set number, Jr Joint roughness number, Ja : Joint alteration number, Jw : Joint water reduction factor, SRF : Stress reduction factor
item class quantity kind | observed property | Concept
label
en Q-Barton index
fr indice Q-Barton
modified 19 May 2025 08:23:16.934
notation 530
register obs prop
status status stable
submitter
account name h.bressan@brgm.fr
name Hélène Bressan

type register item
version info 14
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Definition

category geotechnics
description
en Index introduced by Barton, that provides an quantitative estimate of the quality of rock mass. It is calculated from 6 parameters : Le RQD, Jn : Joint set number, Jr Joint roughness number, Ja : Joint alteration number, Jw : Joint water reduction factor, SRF : Stress reduction factor
fr Indice introduit par Barton qui fournit une estimation quantitative de la qualité du massif rocheux à partir de 6 paramètres : Le RQD, Jn : Joint set number, Jr Joint roughness number, Ja : Joint alteration number, Jw : Joint water reduction factor, SRF : Stress reduction factor
in scheme Observed properties
label
en Q-Barton index
fr indice Q-Barton
notation 530
pref label
en Q-Barton index
fr indice Q-Barton
source Recommandation AFTES GT1R1F1/A1
status Valid
top concept of Observed properties
type quantity kind | observed property | Concept

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