Determination of hydraulic conductivity using HPT & CPTu

Max Slowiok; Simon Oberhollenzer; Roman Marte; Thomas Freudenthaler

doi:10.1201/9781003308829

Determination of hydraulic conductivity using HPT & CPTu

Max Slowiok, Simon Oberhollenzer, Roman Marte, Thomas Freudenthaler

Institute of Soil Mechanics, Foundation Engineering and Computational Geotechnics (2170)

Research output: Chapter in Book/Report/Conference proceeding › Conference paper › peer-review

Abstract

In geotechnical engineering insitu tests are becoming increasingly popular to determine the hydraulic conductivity of soils. Direct push methods such as piezocone penetration test CPTu or the hydraulic profiling tool HPT allow characterizations along a linear profile. The determination of hydraulic conductivity with HPT is an alternative to CPTu for drained and partially drained conditions. Thereby, water is continuously injected from a small screened port at the probe into the soil. Based on the required pressure to inject
the water into the soil and the constant flow rate, the hydraulic permeability can be determined for a certain range of drainage conditions. The present article compares HPT and CPTu results with slug tests, executed at different test sites in a wide range of grain size distributions. Based on this comparison, a new correlation was elaborated for HPT which enables an improved characterization of hydraulic conductivity

Original language	English
Title of host publication	Cone Penetration Testing 2022
Subtitle of host publication	Proceedings of the 5th International Symposium on Cone Penetration Testing (CPT’22), 8-10 June 2022, Bologna, Italy
Editors	Guido Gottardi, Laura Tonni
Place of Publication	London
Publisher	CRC Press
Pages	697-702
ISBN (Print)	9781032312590
DOIs	https://doi.org/10.1201/9781003308829
Publication status	Published - 2022
Event	5th International Symposium on Cone Penetration Testing : CPT22 - Bologna, Italy Duration: 8 Jun 2022 → 10 Jun 2022 https://cpt22.org/

Conference

Conference	5th International Symposium on Cone Penetration Testing
Abbreviated title	CPT22
Country/Territory	Italy
City	Bologna
Period	8/06/22 → 10/06/22
Internet address	https://cpt22.org/

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10.1201/9781003308829Licence: CC BY-NC-ND 4.0

Cite this

Slowiok, M., Oberhollenzer, S., Marte, R., & Freudenthaler, T. (2022). Determination of hydraulic conductivity using HPT & CPTu. In G. Gottardi, & L. Tonni (Eds.), Cone Penetration Testing 2022: Proceedings of the 5th International Symposium on Cone Penetration Testing (CPT’22), 8-10 June 2022, Bologna, Italy (pp. 697-702). CRC Press. https://doi.org/10.1201/9781003308829

Determination of hydraulic conductivity using HPT & CPTu. / Slowiok, Max; Oberhollenzer, Simon; Marte, Roman et al.
Cone Penetration Testing 2022: Proceedings of the 5th International Symposium on Cone Penetration Testing (CPT’22), 8-10 June 2022, Bologna, Italy. ed. / Guido Gottardi; Laura Tonni. London: CRC Press, 2022. p. 697-702.

Research output: Chapter in Book/Report/Conference proceeding › Conference paper › peer-review

Slowiok, M, Oberhollenzer, S, Marte, R & Freudenthaler, T 2022, Determination of hydraulic conductivity using HPT & CPTu. in G Gottardi & L Tonni (eds), Cone Penetration Testing 2022: Proceedings of the 5th International Symposium on Cone Penetration Testing (CPT’22), 8-10 June 2022, Bologna, Italy. CRC Press, London, pp. 697-702, 5th International Symposium on Cone Penetration Testing , Bologna, Italy, 8/06/22. https://doi.org/10.1201/9781003308829

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abstract = "In geotechnical engineering insitu tests are becoming increasingly popular to determine the hydraulic conductivity of soils. Direct push methods such as piezocone penetration test CPTu or the hydraulic profiling tool HPT allow characterizations along a linear profile. The determination of hydraulic conductivity with HPT is an alternative to CPTu for drained and partially drained conditions. Thereby, water is continuously injected from a small screened port at the probe into the soil. Based on the required pressure to injectthe water into the soil and the constant flow rate, the hydraulic permeability can be determined for a certain range of drainage conditions. The present article compares HPT and CPTu results with slug tests, executed at different test sites in a wide range of grain size distributions. Based on this comparison, a new correlation was elaborated for HPT which enables an improved characterization of hydraulic conductivity",

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AB - In geotechnical engineering insitu tests are becoming increasingly popular to determine the hydraulic conductivity of soils. Direct push methods such as piezocone penetration test CPTu or the hydraulic profiling tool HPT allow characterizations along a linear profile. The determination of hydraulic conductivity with HPT is an alternative to CPTu for drained and partially drained conditions. Thereby, water is continuously injected from a small screened port at the probe into the soil. Based on the required pressure to injectthe water into the soil and the constant flow rate, the hydraulic permeability can be determined for a certain range of drainage conditions. The present article compares HPT and CPTu results with slug tests, executed at different test sites in a wide range of grain size distributions. Based on this comparison, a new correlation was elaborated for HPT which enables an improved characterization of hydraulic conductivity

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ER -

Determination of hydraulic conductivity using HPT & CPTu

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