Relationship between the cone penetration resistance qc from method for static cone penetration test and soil properties

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A new correlation equation accounting for cone tip shape and mold lateral restraint can accurately estimate soil parameters for earth structure design from static cone penetration resistance (qc). Novelty: ClaimNovelty.METHODOLOGICAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

Toshihiro MIZUNO; Shima KAWAMURA; Nobuo Mishima; Takumi OBARA

doi:10.3208/jgs.21.239

May 31, 2026Japanese Geotechnical JournalOpen Access

Relationship between the cone penetration resistance qc from method for static cone penetration test and soil properties

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Key Points

This research aims to correlate cone penetration resistance with soil properties for improved design methods.
Conducting static cone penetration tests and various soil tests in a laboratory setting with samples from 33 locations.
Testing included cone index tests, unconfined compressive tests, and California Bearing Ratio (CBR) tests while controlling for grain size, moisture content, and density.
Evaluating the effects of cone tip shape and mold confinement quantitatively on soil parameter estimation.
Proposed a new correlation equation to estimate soil parameters accounting for different cone tip shapes and lateral confinement effects.
Demonstrated significant differences in cone penetration resistance related to soil density and moisture content.
Found strong correlations between cone resistance and other measured soil properties, improving predictive capabilities.

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Implication

Investigates soil properties from cone penetration resistance tests, suggesting new estimation methods for soil design.

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MIZUNO et al. (2026) studied this question.

synapsesocial.com/papers/6a1fc3d7dee9eb8c0dce5545 https://doi.org/10.3208/jgs.21.239

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Relationship between the cone penetration resistance qc from method for static cone penetration test and soil properties

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Relationship between the cone penetration resistance qc from method for static cone penetration test and soil properties

Key Points

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Implication

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