<?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>1405-7743</journal-id>
<journal-title><![CDATA[Ingeniería, investigación y tecnología]]></journal-title>
<abbrev-journal-title><![CDATA[Ing. invest. y tecnol.]]></abbrev-journal-title>
<issn>1405-7743</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Facultad de Ingeniería]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1405-77432023000200002</article-id>
<article-id pub-id-type="doi">10.22201/fi.25940732e.2023.24.2.010</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Medición de asentamientos en pavimentos dañados por subsidencia usando ortomosaicos y MDE mediante GPS y VANT]]></article-title>
<article-title xml:lang="en"><![CDATA[Measurement of settlements in subsidence damaged pavements using orthomosaics and DEM using GPS and UAV]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Galeana-Pérez]]></surname>
<given-names><![CDATA[Victor Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chávez-Alegría]]></surname>
<given-names><![CDATA[Omar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Medellin-Aguilar]]></surname>
<given-names><![CDATA[Gerardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zamora-Castro]]></surname>
<given-names><![CDATA[Sergio Aurelio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Querétaro  Facultad de Ingeniería]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma de Querétaro  Facultad de Ingeniería]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Autónoma de Querétaro  Facultad de Ingeniería]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Veracruzana Departamento de Ingeniería Civil Facultad de Ingeniería]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2023</year>
</pub-date>
<volume>24</volume>
<numero>2</numero>
<fpage>0</fpage>
<lpage>0</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-77432023000200002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-77432023000200002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-77432023000200002&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El fenómeno subsidencia ocasionado por la sobreexplotación excesiva de algunos acuíferos para el abastecimiento de agua potable, ha provocado la aparición de agrietamientos y asentamientos diferenciales en los pavimentos, repercutiendo en un sin número de daños en las vías terrestres en diferentes estados de la República Mexicana y del mundo. En efecto, la tecnología ha progresado y de esta manera se han incorporado nuevas técnicas para acelerar la solución a este tipo de problemas como el Vehículo Aéreo No Tripulado (VANT) y el Sistema de Posicionamiento Global (GPS); estas tecnologías han influido en distintas tareas como: a) levantar grandes áreas en periodos pequeños, b) disminuir el alto requerimiento de personal y c) la poca demanda de los recursos necesarios para cubrir las necesidades de uso. Esta investigación presenta una metodología para la medición de los agrietamientos en pavimentos con la finalidad de acelerar el proceso de identificación y predicción de asentamientos en un área, misma que presenta continuos movimientos por subsidencia desde hace años, provocando cuantiosos daños en la infraestructura existente. Se consideró monitorear el área por doce meses, obteniendo un ortomosaico y cinco Modelos Digitales de Elevación (MDE) cada dos meses y procesando mediante softwares especializados en fotogrametría VANT usando Puntos de Control Terrestres (GCP o BN) para poder corregir los MDE mediante la ortorectificación de las fotografías. Los resultados obtenidos muestran cómo se reduce el tiempo de identificación de daños en los pavimentos, asimismo, se han obtenido asentamientos de magnitud con 5.7 cm en el área, además de un procesamiento de datos de dos horas cubriendo un área de 27,224 m2. De la misma manera, con este procesamiento es posible conocer un valor más aproximado, se han podido medir la longitud y ancho de las grietas por la relación GSD (cm/pix) que es programada en el vuelo del VANT.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The subsidence phenomenon caused by the excessive overexploitation of some aquifers for the supply of drinking water, has caused the appearance of cracks and differential settlements in the pavements, affecting countless damages to land roads in different states of the Mexican Republic and of the world. Indeed, technology has progressed and thus new techniques have been incorporated to speed up the solution to these types of problems, being: the Unmanned Aerial Vehicle (UAV) and the Global Positioning System (GPS); These technologies have influenced different tasks such as: a) raising large areas in small periods, b) reducing the high requirement of personnel and, c) the low demand for the resources necessary to cover the needs of use. This research presents a methodology for the measurement of cracks in pavements in order to speed up the process of identification and prediction of settlements in an area, which has had continuous movements due to subsidence for years, causing extensive damage to existing infrastructure. It was considered to monitor the area for twelve months, obtaining an orthomosaic and five Digital Elevation Models (DEMs) every two months and processing through specialized UAV photogrammetry software using Ground Control Points (GCP or BN) in order to correct the DEMs through orthorectification. of the photographs. The results obtained show how the time to identify pavement damage is reduced, likewise, settlements of a magnitude of 5.7 cm have been obtained in the area, in addition to a two-hour data processing covering an area of 27,224 m2. In the same way, with this processing it is possible to know a more approximate value, it has been possible to measure the length and width of the cracks by the GSD ratio (cm/pix) that is programmed in the UAV flight.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[VANT]]></kwd>
<kwd lng="es"><![CDATA[GPS]]></kwd>
<kwd lng="es"><![CDATA[ortomosaico]]></kwd>
<kwd lng="es"><![CDATA[modelo digital de elevación]]></kwd>
<kwd lng="es"><![CDATA[pavimento]]></kwd>
<kwd lng="es"><![CDATA[asentamientos]]></kwd>
<kwd lng="es"><![CDATA[Agisoft Metashape]]></kwd>
<kwd lng="en"><![CDATA[UAV]]></kwd>
<kwd lng="en"><![CDATA[GPS]]></kwd>
<kwd lng="en"><![CDATA[orthomosaic]]></kwd>
<kwd lng="en"><![CDATA[digital elevation model]]></kwd>
<kwd lng="en"><![CDATA[pavement]]></kwd>
<kwd lng="en"><![CDATA[settlements]]></kwd>
<kwd lng="en"><![CDATA[Agisoft Metashape]]></kwd>
</kwd-group>
</article-meta>
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