Publication result detail

Innovative cumulative frequency-based approach to conversion design for volcanic rock strength estimation

BRABEC, M.; KRMÍČEK, L.

Original Title

Innovative cumulative frequency-based approach to conversion design for volcanic rock strength estimation

English Title

Innovative cumulative frequency-based approach to conversion design for volcanic rock strength estimation

Type

WoS Article

Original Abstract

Index tests are widely implemented for in-situ evaluation of rocks. In case of most rock types, the universal conversions are well suited for rock strength estimation. However, this approach can potentially lead to significant deviations for less typical types such as porous volcanic rocks. Derivation of specialized conversions is commonly conducted using the regression analysis of index and strength values obtained from tests executed on same specimens. In some cases (e.g., for destructive index tests), the data cannot be easily analysed, as they are obtained separately. The proposed procedure aims to address these cases by a suitable data preparation - after statistical evaluation, a set of representative values is calculated and paired at regular cumulative frequency intervals, allowing for subsequent regression analysis. The method was evaluated on volcanic rock datasets, allowing for direct comparison with the standard procedure. The conversions designed according to the proposed method yielded superior estimation.

English abstract

Index tests are widely implemented for in-situ evaluation of rocks. In case of most rock types, the universal conversions are well suited for rock strength estimation. However, this approach can potentially lead to significant deviations for less typical types such as porous volcanic rocks. Derivation of specialized conversions is commonly conducted using the regression analysis of index and strength values obtained from tests executed on same specimens. In some cases (e.g., for destructive index tests), the data cannot be easily analysed, as they are obtained separately. The proposed procedure aims to address these cases by a suitable data preparation - after statistical evaluation, a set of representative values is calculated and paired at regular cumulative frequency intervals, allowing for subsequent regression analysis. The method was evaluated on volcanic rock datasets, allowing for direct comparison with the standard procedure. The conversions designed according to the proposed method yielded superior estimation.

Keywords

Strength estimation, Empirical conversion, Index tests, Volcanic rocks, Rock mechanics

Key words in English

Strength estimation, Empirical conversion, Index tests, Volcanic rocks, Rock mechanics

Authors

BRABEC, M.; KRMÍČEK, L.

Released

13.10.2025

Periodical

Bulletin of Engineering Geology and the Environment

Volume

11

Number

84

State

Federal Republic of Germany

Pages count

7

URL

https://link.springer.com/article/10.1007/s10064-025-04537-z

BibTex

@article{BUT199189,
  author="{} and Marek {Brabec} and  {} and Lukáš {Krmíček}",
  title="Innovative cumulative frequency-based approach to conversion design for volcanic rock strength estimation",
  journal="Bulletin of Engineering Geology and the Environment",
  year="2025",
  volume="11",
  number="84",
  pages="7",
  doi="10.1007/s10064-025-04537-z",
  issn="1435-9529",
  url="https://link.springer.com/article/10.1007/s10064-025-04537-z"
}