Performance control of root piles using a digital odometer

Root piles are injected and installed during mortar shaft construction, using pressures of up to 500 kPa. The executive control is typically done through static load testing, an expensive and time-consuming method. Static load tests on eight controlled piles (diameters between 310 mm and 410 mm) we...

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Main Authors: Jose Melchior Filho Melchior, Alfran Sampaio Moura, Fernando Feitosa Monteiro
Format: Article
Language:English
Published: Universidad Nacional de Colombia 2022-03-01
Series:Dyna
Subjects:
Online Access:https://revistas.unal.edu.co/index.php/dyna/article/view/95008
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author Jose Melchior Filho Melchior
Alfran Sampaio Moura
Fernando Feitosa Monteiro
author_facet Jose Melchior Filho Melchior
Alfran Sampaio Moura
Fernando Feitosa Monteiro
author_sort Jose Melchior Filho Melchior
collection DOAJ
description Root piles are injected and installed during mortar shaft construction, using pressures of up to 500 kPa. The executive control is typically done through static load testing, an expensive and time-consuming method. Static load tests on eight controlled piles (diameters between 310 mm and 410 mm) were performed, aiming at evaluating pile ultimate load. This study suggests an innovative, non-destructive approach to validate root pile field performance, using a digital speedometer connected to the drilling rig’s rotating head. The proposed method monitors variables related to bearing capacity during pile installation and proposes an empirical equation to estimate the ultimate bearing capacity of root piles. For the assessed piles, the predictions obtained with the proposed equations agreed fairly well with results from static load tests, proving it as a feasible and helpful option for the executive control of root piles, especially when load tests are not available.
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spelling doaj.art-744ee052d8ac43f1870aab36041696fb2023-04-26T18:33:13ZengUniversidad Nacional de ColombiaDyna0012-73532346-21832022-03-018922010.15446/dyna.v89n220.95008Performance control of root piles using a digital odometerJose Melchior Filho Melchior0Alfran Sampaio Moura1Fernando Feitosa Monteiro2Department of Civil and Environmental Engineering University of Brasília, Brasília, BrazilDepartment of Hydraulic and Environmental Engineering, Federal University of Ceará, Ceará, BrazilDepartment of Civil and Environmental Engineering University of Brasília, Brasília, Brazil Root piles are injected and installed during mortar shaft construction, using pressures of up to 500 kPa. The executive control is typically done through static load testing, an expensive and time-consuming method. Static load tests on eight controlled piles (diameters between 310 mm and 410 mm) were performed, aiming at evaluating pile ultimate load. This study suggests an innovative, non-destructive approach to validate root pile field performance, using a digital speedometer connected to the drilling rig’s rotating head. The proposed method monitors variables related to bearing capacity during pile installation and proposes an empirical equation to estimate the ultimate bearing capacity of root piles. For the assessed piles, the predictions obtained with the proposed equations agreed fairly well with results from static load tests, proving it as a feasible and helpful option for the executive control of root piles, especially when load tests are not available. https://revistas.unal.edu.co/index.php/dyna/article/view/95008foundationspilesstatic load test;micropilesroot pilespile bearing capacity
spellingShingle Jose Melchior Filho Melchior
Alfran Sampaio Moura
Fernando Feitosa Monteiro
Performance control of root piles using a digital odometer
Dyna
foundations
piles
static load test;
micropiles
root piles
pile bearing capacity
title Performance control of root piles using a digital odometer
title_full Performance control of root piles using a digital odometer
title_fullStr Performance control of root piles using a digital odometer
title_full_unstemmed Performance control of root piles using a digital odometer
title_short Performance control of root piles using a digital odometer
title_sort performance control of root piles using a digital odometer
topic foundations
piles
static load test;
micropiles
root piles
pile bearing capacity
url https://revistas.unal.edu.co/index.php/dyna/article/view/95008
work_keys_str_mv AT josemelchiorfilhomelchior performancecontrolofrootpilesusingadigitalodometer
AT alfransampaiomoura performancecontrolofrootpilesusingadigitalodometer
AT fernandofeitosamonteiro performancecontrolofrootpilesusingadigitalodometer