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Full-scale embankment failure test under simulated train loading

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Full-scale embankment failure test under simulated train loading. / Lehtonen, Ville ; Länsivaara, Tim ; Mansikkamäki, Juho ; Meehan, Chris.

julkaisussa: Geotechnique, Vuosikerta 65, Nro 12, 2015, s. 961-974.

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Lehtonen, Ville ; Länsivaara, Tim ; Mansikkamäki, Juho ; Meehan, Chris. / Full-scale embankment failure test under simulated train loading. Julkaisussa: Geotechnique. 2015 ; Vuosikerta 65, Nro 12. Sivut 961-974.

Bibtex - Lataa

@article{32c39ec3c6c24358a44efb3cda494e45,
title = "Full-scale embankment failure test under simulated train loading",
abstract = "A full-scale embankment failure experiment was conducted in 2009 in Perni{\"o}, Finland. A small, extensively instrumented railway embankment on a soft clay foundation was brought to failure by loading over a period of 30 h. Instrumentation consisted of over 300 different measurement points, including 37 piezometers and nine automatically monitored inclinometer tubes. The relatively rapid loading simulated a heavy train coming to a standstill on the embankment. The primary purpose of the experiment was to gather field data of a failure caused by a rapidly applied load, with an emphasis on the pore pressure response in the clay foundation layer. The test was also used to assess the suitability of various instruments for real-time stability monitoring. The embankment failure was an asymmetric bearing capacity mechanism that is hypothesised to have been triggered by an undrained creep rupture.During the last 2 h of the experiment, pore pressure and displacements increased at an accelerating rate while the external load was kept constant. The time-dependency of the pore pressure and displacement responses was a key factor in the experiment. With regards to monitoring of similar in-service trainembankments, proper placement of instruments according to predicted failure mechanisms was found to be important.",
author = "Ville Lehtonen and Tim L{\"a}nsivaara and Juho Mansikkam{\"a}ki and Chris Meehan",
year = "2015",
doi = "10.1680/jgeot.14.P.100",
language = "English",
volume = "65",
pages = "961--974",
journal = "Geotechnique",
issn = "0016-8505",
publisher = "Thomas Telford",
number = "12",

}

RIS (suitable for import to EndNote) - Lataa

TY - JOUR

T1 - Full-scale embankment failure test under simulated train loading

AU - Lehtonen, Ville

AU - Länsivaara, Tim

AU - Mansikkamäki, Juho

AU - Meehan, Chris

PY - 2015

Y1 - 2015

N2 - A full-scale embankment failure experiment was conducted in 2009 in Perniö, Finland. A small, extensively instrumented railway embankment on a soft clay foundation was brought to failure by loading over a period of 30 h. Instrumentation consisted of over 300 different measurement points, including 37 piezometers and nine automatically monitored inclinometer tubes. The relatively rapid loading simulated a heavy train coming to a standstill on the embankment. The primary purpose of the experiment was to gather field data of a failure caused by a rapidly applied load, with an emphasis on the pore pressure response in the clay foundation layer. The test was also used to assess the suitability of various instruments for real-time stability monitoring. The embankment failure was an asymmetric bearing capacity mechanism that is hypothesised to have been triggered by an undrained creep rupture.During the last 2 h of the experiment, pore pressure and displacements increased at an accelerating rate while the external load was kept constant. The time-dependency of the pore pressure and displacement responses was a key factor in the experiment. With regards to monitoring of similar in-service trainembankments, proper placement of instruments according to predicted failure mechanisms was found to be important.

AB - A full-scale embankment failure experiment was conducted in 2009 in Perniö, Finland. A small, extensively instrumented railway embankment on a soft clay foundation was brought to failure by loading over a period of 30 h. Instrumentation consisted of over 300 different measurement points, including 37 piezometers and nine automatically monitored inclinometer tubes. The relatively rapid loading simulated a heavy train coming to a standstill on the embankment. The primary purpose of the experiment was to gather field data of a failure caused by a rapidly applied load, with an emphasis on the pore pressure response in the clay foundation layer. The test was also used to assess the suitability of various instruments for real-time stability monitoring. The embankment failure was an asymmetric bearing capacity mechanism that is hypothesised to have been triggered by an undrained creep rupture.During the last 2 h of the experiment, pore pressure and displacements increased at an accelerating rate while the external load was kept constant. The time-dependency of the pore pressure and displacement responses was a key factor in the experiment. With regards to monitoring of similar in-service trainembankments, proper placement of instruments according to predicted failure mechanisms was found to be important.

U2 - 10.1680/jgeot.14.P.100

DO - 10.1680/jgeot.14.P.100

M3 - Article

VL - 65

SP - 961

EP - 974

JO - Geotechnique

JF - Geotechnique

SN - 0016-8505

IS - 12

ER -