<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0012-7353</journal-id>
<journal-title><![CDATA[DYNA]]></journal-title>
<abbrev-journal-title><![CDATA[Dyna rev.fac.nac.minas]]></abbrev-journal-title>
<issn>0012-7353</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional de Colombia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0012-73532022000100064</article-id>
<article-id pub-id-type="doi">10.15446/dyna.v89n220.95008</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Performance control of root piles using a digital odometer]]></article-title>
<article-title xml:lang="es"><![CDATA[Control del rendimiento de pilotes tipo raíz mediante un odómetro digital]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Filho]]></surname>
<given-names><![CDATA[José Melchior]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Moura]]></surname>
<given-names><![CDATA[Alfran Sampaio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Monteiro]]></surname>
<given-names><![CDATA[Fernando Feitosa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,University of Brasília Department of Civil and Environmental Engineering ]]></institution>
<addr-line><![CDATA[Brasília ]]></addr-line>
<country>Brazil</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Federal University of Ceará Department of Hydraulic and Environmental Engineering ]]></institution>
<addr-line><![CDATA[Ceará ]]></addr-line>
<country>Brazil</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2022</year>
</pub-date>
<volume>89</volume>
<numero>220</numero>
<fpage>64</fpage>
<lpage>71</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0012-73532022000100064&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0012-73532022000100064&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0012-73532022000100064&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract 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.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El control ejecutivo generalmente se realiza mediante pruebas de carga estática, un método costoso y que requiere mucho tiempo. Se realizaron ensayos de carga estática en ocho pilotes controlados con el objetivo de evaluar la carga última. Este estudio sugiere un enfoque innovador y no destructivo para validar el rendimiento del campo de pilotes de raíces, utilizando un velocímetro digital conectado al cabezal giratorio del equipo de perforación. El método propuesto monitorea las variables relacionadas con la capacidad portante durante la instalación del pilote y propone una ecuación empírica para estimar la capacidad portante última de los pilotes raíz. Para los pilotes evaluados, las predicciones obtenidas con las ecuaciones propuestas coincidieron, así como con los resultados de las pruebas de carga estática, lo que la demuestra como una opción factible y útil para el control ejecutivo de pilotes de raíz, especialmente cuando no se dispone de pruebas de carga.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[foundations]]></kwd>
<kwd lng="en"><![CDATA[piles]]></kwd>
<kwd lng="en"><![CDATA[static load test]]></kwd>
<kwd lng="en"><![CDATA[micropiles]]></kwd>
<kwd lng="en"><![CDATA[root piles]]></kwd>
<kwd lng="en"><![CDATA[pile bearing capacity]]></kwd>
<kwd lng="en"><![CDATA[quality control]]></kwd>
<kwd lng="es"><![CDATA[cimentaciones]]></kwd>
<kwd lng="es"><![CDATA[pilotes]]></kwd>
<kwd lng="es"><![CDATA[ensayo de carga estática]]></kwd>
<kwd lng="es"><![CDATA[micropilotes]]></kwd>
<kwd lng="es"><![CDATA[pilotes de raíces]]></kwd>
<kwd lng="es"><![CDATA[capacidad de carga del pilote]]></kwd>
<kwd lng="es"><![CDATA[control de calidad]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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