<?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>S1405-77432019000100004</article-id>
<article-id pub-id-type="doi">10.22201/fi.25940732e.2019.20n1.004</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Numerical evaluation of the combined capacity of suction caissons of subsea systems for deep water hydrocarbon exploitation]]></article-title>
<article-title xml:lang="es"><![CDATA[Evaluación numérica de la capacidad de carga combinada de pilotes de succión de sistemas submarinos para explotación de hidrocarburos en aguas profundas]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Valle-Molina]]></surname>
<given-names><![CDATA[Celestino]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez-Moreno]]></surname>
<given-names><![CDATA[Jorge]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Santiago-Sacristán]]></surname>
<given-names><![CDATA[Alfonso]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gómez-Noriega]]></surname>
<given-names><![CDATA[Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ochoa-Ruiz]]></surname>
<given-names><![CDATA[Gilberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Mexicano del Petróleo Centro de Tecnología para Aguas Profundas ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Mexicano del Petróleo Centro de Tecnología para Aguas Profundas ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto Politécnico Nacional ESIA-UZ ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Instituto Politécnico Nacional ESIA-UZ ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Universidad Autónoma de Guadalajara  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2019</year>
</pub-date>
<volume>20</volume>
<numero>1</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=S1405-77432019000100004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-77432019000100004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-77432019000100004&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Suction caissons are used to fix submarine systems of production into the seafloor for exploding hydrocarbons. The foundations of submarine systems are subjected to combined or multiaxial loading, which consists in applying combinations of horizontal and vertical loading (H,V) with driving moments (M). The main objective of this research work was to estimate numerically the combined capacity by means of failure envelopes of a suction pile installed in normally consolidated soil and subjected to combined loading applied at the head. The failure envelope represents the boundary of the combination of loading that the pile-soil can withstand. Finite element program ANSYS® 14.5 was used to model the caisson-soil system and evaluate the capacity of the caissons subjected to 17 combinations of HM failure loading and 22 linked values of VM maximum loading. Each numerical result permit to conform failure surfaces, which for the HM capacity exhibit rotated elliptical shapes with clear symmetry, while failure envelopes of the MV plane exhibit thong-shape failure and are clearly non-symmetrical. In this research, the pure compressional capacity was 72% higher than the pure extensional capacity. The mechanisms of failure of the caissons loaded at the head meet very well with the modes reported in the oil industry. Caissons subjected to horizontal loading in positive convention (applied from left to right direction) and clockwise moment exhibited &#8220;external-scoop&#8221; mechanisms, while caisson under positive lateral loading and counter-clockwise moments might experience translational or rotational failure mechanisms. Finally, this research work permits to quantify the impact of the variation of the mechanical properties of the soil on the caisson capacity as well as the type and size of the failure modes of the foundation.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Los pilotes de succión son utilizados para fijar a los sistemas submarinos de producción en el lecho marino para explotar hidrocarburos costa afuera. Las cimentaciones de los sistemas submarinos están sujetos a carga combinada que consiste en aplicar combinaciones de carga lateral y vertical (H,V) así como momentos (M). El principal objetivo de este trabajo de investigación fue estimar numéricamente la capacidad de carga combinada por medio de superficies de falla de un pilote de succión instalado en suelo fino normalmente consolidado, sujeto a carga combinada aplicada en la cabeza. La superficie de falla representa la frontera de la máxima carga que puede soportar un pilote de succión. Se utilizó el programa de elemento finito ANSYS® 14.5 para modelar el sistema pilote-suelo y evaluar la capacidad de carga de los pilotes sujetos a 17 combinaciones de carga máxima HM y 22 combinaciones de solicitaciones de falla MV. Cada resultado numérico contribuye a conformar las superficies de falla, en el plano HM se presentan superficies de falla simétricas con forma de elipses rotadas, mientras que las envolventes en el espacio MV exhiben formas tipo &#8220;lengua&#8221; no simétricas. En esta investigación, la capacidad a la compresión pura fue 72% mayor que la capacidad en extensión. Los mecanismos de falla de pilotes con carga aplicada en la cabeza coinciden con los reportados por la industria petrolera. Los pilotes bajo carga horizontal pura en convención positiva (dirección de izquierda a derecha) o únicamente bajo momentos en sentido de las manecillas del reloj pueden exhibir mecanismos de falla tipo &#8220;cuchara-externa&#8221;, mientras que pilotes sujetos a carga lateral positiva y simultáneamente momentos opuestos a las manecillas del reloj pueden exhibir modos de falla de traslación o rotación. Finalmente, esta investigación permite cuantificar el impacto de la variación de las propiedades mecánicas del suelo sobre la capacidad de carga combinada de pilotes de succión, así como el tipo y tamaño de los mecanismos de falla de este tipo de cimentación.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Suction caissons]]></kwd>
<kwd lng="en"><![CDATA[subsea production systems]]></kwd>
<kwd lng="en"><![CDATA[deep water]]></kwd>
<kwd lng="es"><![CDATA[Pilotes de succión]]></kwd>
<kwd lng="es"><![CDATA[sistemas submarinos de producción]]></kwd>
<kwd lng="es"><![CDATA[aguas profundas]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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