<?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>1993-8012</journal-id>
<journal-title><![CDATA[Minería y Geología]]></journal-title>
<abbrev-journal-title><![CDATA[Min. Geol.]]></abbrev-journal-title>
<issn>1993-8012</issn>
<publisher>
<publisher-name><![CDATA[EDUM. Universidad de Moa]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1993-80122019000100001</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Optimización económica de la transportación con camiones en una mina a cielo abierto profunda]]></article-title>
<article-title xml:lang="en"><![CDATA[Economic optimization of truck transportation in a deep open pit mine]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sonhi-Manassa]]></surname>
<given-names><![CDATA[Manuel Fidel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Polanco-Almanza]]></surname>
<given-names><![CDATA[Ramón Gilberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Legrá-Lobaina]]></surname>
<given-names><![CDATA[Arístides Alejandro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Escuela Superior Politécnica de Luanda Sur  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Angola</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Superior Minero Metalúrgico de Moa  ]]></institution>
<addr-line><![CDATA[ Holguín]]></addr-line>
<country>Cuba</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>35</volume>
<numero>1</numero>
<fpage>1</fpage>
<lpage>24</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1993-80122019000100001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1993-80122019000100001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1993-80122019000100001&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN El acarreo en minas a cielo abierto profundas encarece la explotación minera en la medida en que se incrementa la profundidad de la mina. El objetivo de presente estudio fue diseñar un plan de transportación económicamente óptimo para todo el tiempo de ejecución del proyecto. Con base en un modelo de cono truncado y su variante de paraboloide circular truncado se propuso un procedimiento para calcular la traza del camino minero para la transportación del mineral mediante camiones. A partir de los indicadores económicos anuales Valor Actual Neto y la relación Egreso/Ingreso se determinan los mejores planes técnico-económicos anuales para las combinaciones posibles de varios modelos de camiones disponibles y se establece el modelo óptimo.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Carrying in deep open-pit mines makes mining more expensive as the depth of the mine increases. The objective of this study is to design an economically optimal transportation plan for the entire project execution time. From a model of truncated cone and its variant of truncated round paraboloid a procedure is proposed for calculating the trace of the mining road to transport the ore by trucks. From the annual economic indicators Net Present Value and the income and expenditure Ratio, the best annual technical-economic plans for the possible combinations of several available truck models are determined and the optimum model is established.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[transporte minero óptimo]]></kwd>
<kwd lng="es"><![CDATA[camiones]]></kwd>
<kwd lng="es"><![CDATA[caminos mineros]]></kwd>
<kwd lng="es"><![CDATA[minería a cielo abierto]]></kwd>
<kwd lng="es"><![CDATA[minas profundas]]></kwd>
<kwd lng="es"><![CDATA[modelación geométrica]]></kwd>
<kwd lng="en"><![CDATA[optimal mining transportation]]></kwd>
<kwd lng="en"><![CDATA[trucks]]></kwd>
<kwd lng="en"><![CDATA[mining roads]]></kwd>
<kwd lng="en"><![CDATA[opencast mining]]></kwd>
<kwd lng="en"><![CDATA[deep mines]]></kwd>
<kwd lng="en"><![CDATA[geometric modeling]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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