Issues related to piezocone sleeve friction measurement accuracy in soft sensitive clays

B. Di Buò; M. D’ignazio; T. Länsivaara; M. Haikola

doi:10.1201/9781003308829-12

Issues related to piezocone sleeve friction measurement accuracy in soft sensitive clays

B. Di Buò, M. D’ignazio, T. Länsivaara, M. Haikola

Civil Engineering

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

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Abstract

Over the past decades, the piezocone testing has been increasingly adopted for field investigation as it offers a quick and cost-effective methodology for subsoil profiling and geotechnical parameters estimation. Although the piezocone testing has revealed good applicability worldwide, difficulties are encountered in complex soil conditions, such as soft sensitive clays. One of the key issues in such soils is represented by the poor quality of the sleeve friction (f_s) measurement due to inaccuracy and poor resolution of the sleeve sensor. This paper investigates the influence of f_s data quality on soil parameters determination with particular emphasis on the soil behavior type (SBT) chart classification. The field investigation was conducted in a soft sensitive clay site located in Finland using two different penetrometers: a standard piezocone and an advanced piezocone characterized by enhance accuracy sleeve friction sensor. Results show that the use of high-resolution piezocone plays a key role in soft clays to avoid misleading soil type classification.

Original language	English
Title of host publication	Cone Penetration Testing 2022 - Proceedings of the 5th International Symposium on Cone Penetration Testing, CPT 2022
Editors	Guido Gottardi, Laura Tonni
Publisher	CRC Press/Balkema
Pages	133-138
Number of pages	6
ISBN (Electronic)	9781003308829
DOIs	https://doi.org/10.1201/9781003308829-12
Publication status	Published - 2022
Publication type	A4 Article in conference proceedings
Event	International Symposium on Cone Penetration Testing - Bologna, Italy Duration: 8 Jun 2022 → 10 Jun 2022 Conference number: 5 https://cpt22.org/

Publication series

Name	Cone Penetration Testing 2022 - Proceedings of the 5th International Symposium on Cone Penetration Testing, CPT 2022

Conference

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

Publication forum classification

Publication forum level 1

ASJC Scopus subject areas

Materials Science(all)

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https://urn.fi/URN:NBN:fi:tuni-202302072117Licence: CC BY-NC-ND

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Di Buò, B., D’ignazio, M., Länsivaara, T., & Haikola, M. (2022). Issues related to piezocone sleeve friction measurement accuracy in soft sensitive clays. In G. Gottardi, & L. Tonni (Eds.), Cone Penetration Testing 2022 - Proceedings of the 5th International Symposium on Cone Penetration Testing, CPT 2022 (pp. 133-138). (Cone Penetration Testing 2022 - Proceedings of the 5th International Symposium on Cone Penetration Testing, CPT 2022). CRC Press/Balkema. https://doi.org/10.1201/9781003308829-12

Di Buò, B. ; D’ignazio, M. ; Länsivaara, T. et al. / Issues related to piezocone sleeve friction measurement accuracy in soft sensitive clays. Cone Penetration Testing 2022 - Proceedings of the 5th International Symposium on Cone Penetration Testing, CPT 2022. editor / Guido Gottardi ; Laura Tonni. CRC Press/Balkema, 2022. pp. 133-138 (Cone Penetration Testing 2022 - Proceedings of the 5th International Symposium on Cone Penetration Testing, CPT 2022).

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title = "Issues related to piezocone sleeve friction measurement accuracy in soft sensitive clays",

abstract = "Over the past decades, the piezocone testing has been increasingly adopted for field investigation as it offers a quick and cost-effective methodology for subsoil profiling and geotechnical parameters estimation. Although the piezocone testing has revealed good applicability worldwide, difficulties are encountered in complex soil conditions, such as soft sensitive clays. One of the key issues in such soils is represented by the poor quality of the sleeve friction (fs) measurement due to inaccuracy and poor resolution of the sleeve sensor. This paper investigates the influence of fs data quality on soil parameters determination with particular emphasis on the soil behavior type (SBT) chart classification. The field investigation was conducted in a soft sensitive clay site located in Finland using two different penetrometers: a standard piezocone and an advanced piezocone characterized by enhance accuracy sleeve friction sensor. Results show that the use of high-resolution piezocone plays a key role in soft clays to avoid misleading soil type classification.",

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doi = "10.1201/9781003308829-12",

language = "English",

series = "Cone Penetration Testing 2022 - Proceedings of the 5th International Symposium on Cone Penetration Testing, CPT 2022",

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Di Buò, B , D’ignazio, M , Länsivaara, T & Haikola, M 2022, Issues related to piezocone sleeve friction measurement accuracy in soft sensitive clays. in G Gottardi & L Tonni (eds), Cone Penetration Testing 2022 - Proceedings of the 5th International Symposium on Cone Penetration Testing, CPT 2022. Cone Penetration Testing 2022 - Proceedings of the 5th International Symposium on Cone Penetration Testing, CPT 2022, CRC Press/Balkema, pp. 133-138, International Symposium on Cone Penetration Testing, Bologna, Italy, 8/06/22. https://doi.org/10.1201/9781003308829-12

Issues related to piezocone sleeve friction measurement accuracy in soft sensitive clays. / Di Buò, B.; D’ignazio, M.; Länsivaara, T. et al.
Cone Penetration Testing 2022 - Proceedings of the 5th International Symposium on Cone Penetration Testing, CPT 2022. ed. / Guido Gottardi; Laura Tonni. CRC Press/Balkema, 2022. p. 133-138 (Cone Penetration Testing 2022 - Proceedings of the 5th International Symposium on Cone Penetration Testing, CPT 2022).

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

TY - GEN

T1 - Issues related to piezocone sleeve friction measurement accuracy in soft sensitive clays

AU - Di Buò, B.

AU - D’ignazio, M.

AU - Länsivaara, T.

AU - Haikola, M.

N1 - Conference code: 5

PY - 2022

Y1 - 2022

N2 - Over the past decades, the piezocone testing has been increasingly adopted for field investigation as it offers a quick and cost-effective methodology for subsoil profiling and geotechnical parameters estimation. Although the piezocone testing has revealed good applicability worldwide, difficulties are encountered in complex soil conditions, such as soft sensitive clays. One of the key issues in such soils is represented by the poor quality of the sleeve friction (fs) measurement due to inaccuracy and poor resolution of the sleeve sensor. This paper investigates the influence of fs data quality on soil parameters determination with particular emphasis on the soil behavior type (SBT) chart classification. The field investigation was conducted in a soft sensitive clay site located in Finland using two different penetrometers: a standard piezocone and an advanced piezocone characterized by enhance accuracy sleeve friction sensor. Results show that the use of high-resolution piezocone plays a key role in soft clays to avoid misleading soil type classification.

AB - Over the past decades, the piezocone testing has been increasingly adopted for field investigation as it offers a quick and cost-effective methodology for subsoil profiling and geotechnical parameters estimation. Although the piezocone testing has revealed good applicability worldwide, difficulties are encountered in complex soil conditions, such as soft sensitive clays. One of the key issues in such soils is represented by the poor quality of the sleeve friction (fs) measurement due to inaccuracy and poor resolution of the sleeve sensor. This paper investigates the influence of fs data quality on soil parameters determination with particular emphasis on the soil behavior type (SBT) chart classification. The field investigation was conducted in a soft sensitive clay site located in Finland using two different penetrometers: a standard piezocone and an advanced piezocone characterized by enhance accuracy sleeve friction sensor. Results show that the use of high-resolution piezocone plays a key role in soft clays to avoid misleading soil type classification.

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DO - 10.1201/9781003308829-12

M3 - Conference contribution

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BT - Cone Penetration Testing 2022 - Proceedings of the 5th International Symposium on Cone Penetration Testing, CPT 2022

A2 - Gottardi, Guido

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PB - CRC Press/Balkema

T2 - International Symposium on Cone Penetration Testing

Y2 - 8 June 2022 through 10 June 2022

ER -

Di Buò B , D’ignazio M , Länsivaara T , Haikola M. Issues related to piezocone sleeve friction measurement accuracy in soft sensitive clays. In Gottardi G, Tonni L, editors, Cone Penetration Testing 2022 - Proceedings of the 5th International Symposium on Cone Penetration Testing, CPT 2022. CRC Press/Balkema. 2022. p. 133-138. (Cone Penetration Testing 2022 - Proceedings of the 5th International Symposium on Cone Penetration Testing, CPT 2022). doi: 10.1201/9781003308829-12

Issues related to piezocone sleeve friction measurement accuracy in soft sensitive clays

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