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Classifying Unsaturated Soils via Cone Penetration Testing
The cone penetration test (CPT) can be used to estimate soil type using empirically developed classification charts. For the most part, these classification schemes involving tip resistance and skin friction measurements have proven quite reliable; however, their applicability to unsaturated soils is questionable. This paper presents results of cone penetration testing in unsaturated soils obtained from two different test sites containing fine-grained soils of low to high plasticity. Analysis of these data indicate matric suction can have a significant impact on CPT-based soil classification. Additional data obtained from previous studies and collected from the literature are used to demonstrate the impact of matric suction on CPT test parameters for a broader range of soil types including low to high plasticity fine-grained soils and sands. A preliminary framework for developing a CPT classification system for unsaturated soils that considers suction is presented.
Classifying Unsaturated Soils via Cone Penetration Testing
The cone penetration test (CPT) can be used to estimate soil type using empirically developed classification charts. For the most part, these classification schemes involving tip resistance and skin friction measurements have proven quite reliable; however, their applicability to unsaturated soils is questionable. This paper presents results of cone penetration testing in unsaturated soils obtained from two different test sites containing fine-grained soils of low to high plasticity. Analysis of these data indicate matric suction can have a significant impact on CPT-based soil classification. Additional data obtained from previous studies and collected from the literature are used to demonstrate the impact of matric suction on CPT test parameters for a broader range of soil types including low to high plasticity fine-grained soils and sands. A preliminary framework for developing a CPT classification system for unsaturated soils that considers suction is presented.
Classifying Unsaturated Soils via Cone Penetration Testing
Collins, Rodney W. (author) / Miller, Gerald A. (author)
Second Pan-American Conference on Unsaturated Soils ; 2017 ; Dallas, Texas
PanAm Unsaturated Soils 2017 ; 11-17
2018-06-20
Conference paper
Electronic Resource
English
Classifying Unsaturated Soils via Cone Penetration Testing
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