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Problems related to field vane testing in soft soil conditions and improved reliability of measurements using an innovative field vane device

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Problems related to field vane testing in soft soil conditions and improved reliability of measurements using an innovative field vane device. / Selänpää, Juha; Buò, Bruno Di; Länsivaara, Tim; D’Ignazio, Marco.

Landslides in Sensitive Clays: From Research to Implementation. Springer, 2017. p. 121-131 (Advances in Natural and Technological Hazards Research; Vol. 46).

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

Harvard

Selänpää, J, Buò, BD, Länsivaara, T & D’Ignazio, M 2017, Problems related to field vane testing in soft soil conditions and improved reliability of measurements using an innovative field vane device. in Landslides in Sensitive Clays: From Research to Implementation. Advances in Natural and Technological Hazards Research, vol. 46, Springer, pp. 121-131. https://doi.org/10.1007/978-3-319-56487-6_10

APA

Selänpää, J., Buò, B. D., Länsivaara, T., & D’Ignazio, M. (2017). Problems related to field vane testing in soft soil conditions and improved reliability of measurements using an innovative field vane device. In Landslides in Sensitive Clays: From Research to Implementation (pp. 121-131). (Advances in Natural and Technological Hazards Research; Vol. 46). Springer. https://doi.org/10.1007/978-3-319-56487-6_10

Vancouver

Selänpää J, Buò BD, Länsivaara T, D’Ignazio M. Problems related to field vane testing in soft soil conditions and improved reliability of measurements using an innovative field vane device. In Landslides in Sensitive Clays: From Research to Implementation. Springer. 2017. p. 121-131. (Advances in Natural and Technological Hazards Research). https://doi.org/10.1007/978-3-319-56487-6_10

Author

Selänpää, Juha ; Buò, Bruno Di ; Länsivaara, Tim ; D’Ignazio, Marco. / Problems related to field vane testing in soft soil conditions and improved reliability of measurements using an innovative field vane device. Landslides in Sensitive Clays: From Research to Implementation. Springer, 2017. pp. 121-131 (Advances in Natural and Technological Hazards Research).

Bibtex - Download

@inbook{43ce57a1d1ec43a2bb24ed03785c8801,
title = "Problems related to field vane testing in soft soil conditions and improved reliability of measurements using an innovative field vane device",
abstract = "In Finland, undrained shear strength is commonly measured using the field vane shear test (FV). Currently, the most commonly used field vane testers are the Nilcon vane and the electrical vane with shear rotation and measuring systems located above the ground level. Vane testing is normally carried out using vanes equipped with slip coupling, while the use of casing for protecting the vane is not very common. Recent studies from Finland have shown that the undrained shear strength of clays can be significantly underestimated when casing is not used. Experimental observations suggest that the slip coupling might not always be sufficient to remove all of the rod friction effects that occur during testing. Tampere University of Technology has recently purchased an innovative field vane apparatus with a vane tester unit, where torque and rotations are measured right above the vane. In this way, the effect of rod friction is minimized and the measured stressrotation behavior is less biased. In this study, issues related to practical applications, testing devices and interpretationmethods are discussed. Then, a critical comparison between test results in soft clays from both the traditional and new field vane testers is performed.",
author = "Juha Sel{\"a}np{\"a}{\"a} and Bu{\`o}, {Bruno Di} and Tim L{\"a}nsivaara and Marco D’Ignazio",
year = "2017",
doi = "10.1007/978-3-319-56487-6_10",
language = "English",
isbn = "978-3-319-56486-9",
series = "Advances in Natural and Technological Hazards Research",
publisher = "Springer",
pages = "121--131",
booktitle = "Landslides in Sensitive Clays",

}

RIS (suitable for import to EndNote) - Download

TY - CHAP

T1 - Problems related to field vane testing in soft soil conditions and improved reliability of measurements using an innovative field vane device

AU - Selänpää, Juha

AU - Buò, Bruno Di

AU - Länsivaara, Tim

AU - D’Ignazio, Marco

PY - 2017

Y1 - 2017

N2 - In Finland, undrained shear strength is commonly measured using the field vane shear test (FV). Currently, the most commonly used field vane testers are the Nilcon vane and the electrical vane with shear rotation and measuring systems located above the ground level. Vane testing is normally carried out using vanes equipped with slip coupling, while the use of casing for protecting the vane is not very common. Recent studies from Finland have shown that the undrained shear strength of clays can be significantly underestimated when casing is not used. Experimental observations suggest that the slip coupling might not always be sufficient to remove all of the rod friction effects that occur during testing. Tampere University of Technology has recently purchased an innovative field vane apparatus with a vane tester unit, where torque and rotations are measured right above the vane. In this way, the effect of rod friction is minimized and the measured stressrotation behavior is less biased. In this study, issues related to practical applications, testing devices and interpretationmethods are discussed. Then, a critical comparison between test results in soft clays from both the traditional and new field vane testers is performed.

AB - In Finland, undrained shear strength is commonly measured using the field vane shear test (FV). Currently, the most commonly used field vane testers are the Nilcon vane and the electrical vane with shear rotation and measuring systems located above the ground level. Vane testing is normally carried out using vanes equipped with slip coupling, while the use of casing for protecting the vane is not very common. Recent studies from Finland have shown that the undrained shear strength of clays can be significantly underestimated when casing is not used. Experimental observations suggest that the slip coupling might not always be sufficient to remove all of the rod friction effects that occur during testing. Tampere University of Technology has recently purchased an innovative field vane apparatus with a vane tester unit, where torque and rotations are measured right above the vane. In this way, the effect of rod friction is minimized and the measured stressrotation behavior is less biased. In this study, issues related to practical applications, testing devices and interpretationmethods are discussed. Then, a critical comparison between test results in soft clays from both the traditional and new field vane testers is performed.

U2 - 10.1007/978-3-319-56487-6_10

DO - 10.1007/978-3-319-56487-6_10

M3 - Chapter

SN - 978-3-319-56486-9

T3 - Advances in Natural and Technological Hazards Research

SP - 121

EP - 131

BT - Landslides in Sensitive Clays

PB - Springer

ER -