Reliability and applicability of the Krumbein-Sloss chart for estimating geomechanical properties in sands

Yejin Kim; Hyoung Suk Suh; Tae Sup Yun

doi:10.1016/j.enggeo.2018.11.001

Reliability and applicability of the Krumbein-Sloss chart for estimating geomechanical properties in sands

Yejin Kim, Hyoung Suk Suh, Tae Sup Yun

Department of Civil and Environmental Engineering

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

This paper describes the reliability of the Krumbein-Sloss chart in estimating the particle shape parameter. Despite its simplicity and subjectivity in choosing roundness and sphericity, its applicability has not yet been completely validated. We compare the computed shape parameters of four different sands from 2D microscopic images with estimated values from the chart by a questionnaire study. The survey results show that the roundness and sphericity tend to be overestimated and underestimated, respectively, regardless of the participants’ expertise on shape analysis. We validate the reliability of a previous regression in literature for extreme void ratios and newly propose the correlation of critical state void ratio based on roundness and particle gradation. It underscores that the Krumbein-Sloss chart based estimation can be statistically and partially reliable and still applicable in not only estimating shape parameters and but also correlating them with geotechnical properties.

Original language	English
Pages (from-to)	117-123
Number of pages	7
Journal	Engineering Geology
Volume	248
DOIs	https://doi.org/10.1016/j.enggeo.2018.11.001
Publication status	Published - 2019 Jan 8

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (No. 2016R1A2B4011292 ) and the Human Resources Program in Energy Technology of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), granted financial resource from the Ministry of Trade, Industry & Energy, Republic of Korea (No. 20174010201640 ).

Publisher Copyright:
© 2018 Elsevier B.V.

All Science Journal Classification (ASJC) codes

Geotechnical Engineering and Engineering Geology
Geology

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10.1016/j.enggeo.2018.11.001

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title = "Reliability and applicability of the Krumbein-Sloss chart for estimating geomechanical properties in sands",

abstract = "This paper describes the reliability of the Krumbein-Sloss chart in estimating the particle shape parameter. Despite its simplicity and subjectivity in choosing roundness and sphericity, its applicability has not yet been completely validated. We compare the computed shape parameters of four different sands from 2D microscopic images with estimated values from the chart by a questionnaire study. The survey results show that the roundness and sphericity tend to be overestimated and underestimated, respectively, regardless of the participants{\textquoteright} expertise on shape analysis. We validate the reliability of a previous regression in literature for extreme void ratios and newly propose the correlation of critical state void ratio based on roundness and particle gradation. It underscores that the Krumbein-Sloss chart based estimation can be statistically and partially reliable and still applicable in not only estimating shape parameters and but also correlating them with geotechnical properties.",

author = "Yejin Kim and Suh, {Hyoung Suk} and Yun, {Tae Sup}",

note = "Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (No. 2016R1A2B4011292 ) and the Human Resources Program in Energy Technology of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), granted financial resource from the Ministry of Trade, Industry & Energy, Republic of Korea (No. 20174010201640 ). Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

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doi = "10.1016/j.enggeo.2018.11.001",

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AU - Kim, Yejin

AU - Suh, Hyoung Suk

AU - Yun, Tae Sup

N1 - Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (No. 2016R1A2B4011292 ) and the Human Resources Program in Energy Technology of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), granted financial resource from the Ministry of Trade, Industry & Energy, Republic of Korea (No. 20174010201640 ). Publisher Copyright: © 2018 Elsevier B.V.

PY - 2019/1/8

Y1 - 2019/1/8

N2 - This paper describes the reliability of the Krumbein-Sloss chart in estimating the particle shape parameter. Despite its simplicity and subjectivity in choosing roundness and sphericity, its applicability has not yet been completely validated. We compare the computed shape parameters of four different sands from 2D microscopic images with estimated values from the chart by a questionnaire study. The survey results show that the roundness and sphericity tend to be overestimated and underestimated, respectively, regardless of the participants’ expertise on shape analysis. We validate the reliability of a previous regression in literature for extreme void ratios and newly propose the correlation of critical state void ratio based on roundness and particle gradation. It underscores that the Krumbein-Sloss chart based estimation can be statistically and partially reliable and still applicable in not only estimating shape parameters and but also correlating them with geotechnical properties.

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Reliability and applicability of the Krumbein-Sloss chart for estimating geomechanical properties in sands

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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