@inproceedings{472146673c6a4eb39fe2820297730fed,
title = "On the interpretation of piezocone dissipation testing data in clay",
abstract = "Piezocone dissipation tests are routinely used to estimate the in situ coefficient of consolidation (ch). This is achieved either by extracting a single point of the dissipation curve (usually, the time for 50% dissipation, t50) or by adjusting a theoretical solution to the experimental data. Results from a piezocone investigation carried out in the Holocene clay deposit of Tubar{\~a}o are reported and interpreted to evaluate the accuracy of existing procedures to estimate ch. Explicit recommendations on how to curve fit dissipation curves and use the first and second derivates to estimate t50 are presented. Validation of the proposed method is provided from field tests reaching up to 75% dissipation. The proposed method does not require accurate measurements of equilibrium pressure and relies less on engineering judgment when compared to reference procedures. Furthermore, the method performed reasonably well with a shorter dissipation time (40% dissipation).",
author = "M{\'a}ntaras, {F. M.} and Pereira, {F. S.} and E. Odebrecht and F. Schnaid",
note = "Publisher Copyright: {\textcopyright} 2022 the Author(s).; 5th International Symposium on Cone Penetration Testing, CPT 2022 ; Conference date: 08-06-2022 Through 10-06-2022",
year = "2022",
doi = "10.1201/9781003308829-76",
language = "English",
isbn = "9781032312590",
series = "Cone Penetration Testing 2022 - Proceedings of the 5th International Symposium on Cone Penetration Testing, CPT 2022",
publisher = "CRC Press",
pages = "534--539",
editor = "Guido Gottardi and Laura Tonni",
booktitle = "Cone Penetration Testing 2022 - Proceedings of the 5th International Symposium on Cone Penetration Testing, CPT 2022",
}