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Correlation between the Joint Roughness Coefficient and Rock Joint Statistical Parameters at Different Sampling Intervals

Auteur(s):




Médium: article de revue
Langue(s): en 
Publié dans: Advances in Civil Engineering, , v. 2019
Page(s): 1-9
DOI: 10.1155/2019/1643842
Abstrait:

Joint roughness coefficient (JRC) is a major factor that affects the mechanical properties of rock joints. Statistical methods that are used to calculate the JRC increasingly depend on a sampling interval (Δx). The variation rules of fitting parametersa,b, andb/aat different Δxvalues were analyzed on the basis of the relationship between the JRC and statistical parameterZ2. The relationship between the fitting parametersaandbwas deduced in accordance with the ten standard profiles proposed by Barton. Empirical formulas for the JRC,Z2, and Δxwere also established. The estimation accuracy of the JRC was the highest in the analysis of Δxvalues within 0.1–5.0 mm. JRC tests were conducted through inverse value comparative analysis. Results showed that the outcome calculated using the general formula and the JRC inverse values demonstrate improved agreement and verify the rationality of the general formula. The proposed formula can perform rapid and simple JRC calculation within the Δxrange of 0.1–5.0 mm usingZ2, thereby indicating favorable application prospects.

Copyright: © Man Huang et al.
License:

Cette oeuvre a été publiée sous la license Creative Commons Attribution 4.0 (CC-BY 4.0). Il est autorisé de partager et adapter l'oeuvre tant que l'auteur est crédité et la license est indiquée (avec le lien ci-dessus). Vous devez aussi indiquer si des changements on été fait vis-à-vis de l'original.

  • Informations
    sur cette fiche
  • Reference-ID
    10334671
  • Publié(e) le:
    01.08.2019
  • Modifié(e) le:
    02.06.2021