Assessment of Stress in the Soil Surrounding the Axially Loaded Model Pile by Thin, Flexible Sensors

Foundation piles transfer the applied vertical load to the surrounding soil by skin friction and base resistance. These two components induce stress in the soil. The load transfer is still not fully recognized, and some pile load tests analyses have raised many doubts. The present paper aimed to mea...

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Autores principales:	Krzysztof Żarkiewicz, Waleed Qatrameez
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	tactile pressure sensor color film pressure sensor pile load test stress in soil laboratory investigation Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/c954cda77f50497b92e8abe35204134e
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spelling	oai:doaj.org-article:c954cda77f50497b92e8abe35204134e2021-11-11T19:11:40ZAssessment of Stress in the Soil Surrounding the Axially Loaded Model Pile by Thin, Flexible Sensors10.3390/s212172141424-8220https://doaj.org/article/c954cda77f50497b92e8abe35204134e2021-10-01T00:00:00Zhttps://www.mdpi.com/1424-8220/21/21/7214https://doaj.org/toc/1424-8220Foundation piles transfer the applied vertical load to the surrounding soil by skin friction and base resistance. These two components induce stress in the soil. The load transfer is still not fully recognized, and some pile load tests analyses have raised many doubts. The present paper aimed to measure the stress levels during pile load tests in laboratory conditions. This research examined the possibilities of using thin, flexible sensors in measuring the stress in soil. Two sensors were used: tactile pressure sensor with mapping system and color film pressure sensors with digital analyzing. Calibration and preliminary tests of the sensors have been described. This calibration proved that this kind of sensor could measure the stress in the soil in laboratory conditions. The results of stress distribution in the soil, shown as pressure maps, have been presented. Significant stress changes were observed in pile load tests. Rough and smooth piles were compared in the analyses. Stress distribution was the result of simultaneous interaction of pile skin and base. The knowledge about stresses surrounding the pile allows us to carry out a deeper analysis of the pile–soil interaction.Krzysztof ŻarkiewiczWaleed QatrameezMDPI AGarticletactile pressure sensorcolor film pressure sensorpile load teststress in soillaboratory investigationChemical technologyTP1-1185ENSensors, Vol 21, Iss 7214, p 7214 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	tactile pressure sensor color film pressure sensor pile load test stress in soil laboratory investigation Chemical technology TP1-1185
spellingShingle	tactile pressure sensor color film pressure sensor pile load test stress in soil laboratory investigation Chemical technology TP1-1185 Krzysztof Żarkiewicz Waleed Qatrameez Assessment of Stress in the Soil Surrounding the Axially Loaded Model Pile by Thin, Flexible Sensors
description	Foundation piles transfer the applied vertical load to the surrounding soil by skin friction and base resistance. These two components induce stress in the soil. The load transfer is still not fully recognized, and some pile load tests analyses have raised many doubts. The present paper aimed to measure the stress levels during pile load tests in laboratory conditions. This research examined the possibilities of using thin, flexible sensors in measuring the stress in soil. Two sensors were used: tactile pressure sensor with mapping system and color film pressure sensors with digital analyzing. Calibration and preliminary tests of the sensors have been described. This calibration proved that this kind of sensor could measure the stress in the soil in laboratory conditions. The results of stress distribution in the soil, shown as pressure maps, have been presented. Significant stress changes were observed in pile load tests. Rough and smooth piles were compared in the analyses. Stress distribution was the result of simultaneous interaction of pile skin and base. The knowledge about stresses surrounding the pile allows us to carry out a deeper analysis of the pile–soil interaction.
format	article
author	Krzysztof Żarkiewicz Waleed Qatrameez
author_facet	Krzysztof Żarkiewicz Waleed Qatrameez
author_sort	Krzysztof Żarkiewicz
title	Assessment of Stress in the Soil Surrounding the Axially Loaded Model Pile by Thin, Flexible Sensors
title_short	Assessment of Stress in the Soil Surrounding the Axially Loaded Model Pile by Thin, Flexible Sensors
title_full	Assessment of Stress in the Soil Surrounding the Axially Loaded Model Pile by Thin, Flexible Sensors
title_fullStr	Assessment of Stress in the Soil Surrounding the Axially Loaded Model Pile by Thin, Flexible Sensors
title_full_unstemmed	Assessment of Stress in the Soil Surrounding the Axially Loaded Model Pile by Thin, Flexible Sensors
title_sort	assessment of stress in the soil surrounding the axially loaded model pile by thin, flexible sensors
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/c954cda77f50497b92e8abe35204134e
work_keys_str_mv	AT krzysztofzarkiewicz assessmentofstressinthesoilsurroundingtheaxiallyloadedmodelpilebythinflexiblesensors AT waleedqatrameez assessmentofstressinthesoilsurroundingtheaxiallyloadedmodelpilebythinflexiblesensors
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Assessment of Stress in the Soil Surrounding the Axially Loaded Model Pile by Thin, Flexible Sensors

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