<?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>0120-0283</journal-id>
<journal-title><![CDATA[Boletín de Geología]]></journal-title>
<abbrev-journal-title><![CDATA[Bol. geol.]]></abbrev-journal-title>
<issn>0120-0283</issn>
<publisher>
<publisher-name><![CDATA[Universidad Industrial de Santander]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-02832020000100069</article-id>
<article-id pub-id-type="doi">10.18273/revbol.v42n1-2020004</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Incertidumbre en la determinación del Porcentaje Volumétrico de Bloques de BIMrocks/BIMsoil a partir de información unidimensional]]></article-title>
<article-title xml:lang="en"><![CDATA[Uncertainty in the determination of the volumetric block proportion of BIMrocks/ BIMsoils from one-dimensional information]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramos-Cañón]]></surname>
<given-names><![CDATA[Alfonso Mariano]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castro-Malaver]]></surname>
<given-names><![CDATA[Lady Carolina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Padilla-Bello]]></surname>
<given-names><![CDATA[Nelly Vanessa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vega-Posada]]></surname>
<given-names><![CDATA[Carlos Alberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional de Colombia  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Militar Nueva Granada  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Antioquia  ]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2020</year>
</pub-date>
<volume>42</volume>
<numero>1</numero>
<fpage>69</fpage>
<lpage>80</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-02832020000100069&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-02832020000100069&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-02832020000100069&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN La caracterización mecánica de depósitos de materiales heterogéneos (BIMrocks/BIMsoil - Block in Matrix) requiere del conocimiento de la cantidad de bloques inmersos en una matriz débil (Proporción Volumétrica de Bloques, PVB). La aleatoriedad en el proceso de formación de dichos depósitos impide obtener información unívoca mediante estudios geotécnicos convencionales. Es posible reconocer que a medida que aumenta el número y la profundidad de las perforaciones, se disminuye la incertidumbre en la determinación de la PVB, sin embargo, la cuantificación de la disminución de la incertidumbre no ha sido abarcada de manera comprensiva. La determinación de la PVB en materiales BIMrock/BIMsoil tiene asociada una incertidumbre que se ha estudiado con modelos físicos y analíticos. Dichos modelos no consideran la influencia de factores como el tamaño, forma y orientación de los bloques, que simultáneamente inciden en la cuantificación de la incertidumbre en la PVB. En este trabajo se desarrolló un algoritmo y se implementó computacionalmente para analizar la influencia de la longitud y el número de las perforaciones, junto con la forma y orientación de los bloques, sobre el nivel de incertidumbre en la determinación de la PVB. Los resultados sugieren que a mayor investigación del subsuelo (número y longitud de perforaciones), independiente de la forma, tamaño y orientación de los bloques, se disminuye la incertidumbre epistémica en la PVB. Sin embargo, dicha incertidumbre tiene un límite inferior que obedece a la naturaleza aleatoria propia de la formación del material BIMrock/BIMsoil.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The mechanical characterization of the deposits of heterogeneous materials (BIMrocks/BIMsoil - Block in Matrix) requires the knowledge of the number of embedded blocks within a weaker matrix (Proportion of Volumetric Blocks, PVB). The randomness in the process of formation of such deposits does not allow to obtain univocal information through the conventional geotechnical survey. It is possible to recognize that as the number and depth of the borehole increase, the uncertainty of the determination of the PVB decrease. However, the quantification of the decrease of uncertainty has not been fully covered. The determination of the PVB in materials BIMrock/BIMsoil has associated an uncertainty that have been studied with physical and analytical models. Such models do not consider the influence of factors like the size, shape and the blocks orientation, that simultaneously affect in the quantification of the uncertainties in the PVB. In this work a computational algorithm has been developed and implemented to analyze the influence of the length and number of borehole, the shape and orientation of the blocks, on the uncertainty level of the determination of the PVB. The results suggest that further investigations of the subsoil (number and length of the perforations), independently of the shape, size and orientation of the blocks, the less is the epistemic uncertainty in the PVB. Nevertheless, it has been found that such uncertainty has an inferior limit that obeys the randomly natural formation of the material BIMrock/BIMsoil.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Incertidumbre]]></kwd>
<kwd lng="es"><![CDATA[BIMrock/BIMsoil]]></kwd>
<kwd lng="es"><![CDATA[proporción volumétrica de bloques]]></kwd>
<kwd lng="es"><![CDATA[caracterización unidimensional]]></kwd>
<kwd lng="en"><![CDATA[Uncertainty]]></kwd>
<kwd lng="en"><![CDATA[BIMrock/BIMsoil]]></kwd>
<kwd lng="en"><![CDATA[volumetric block proportion]]></kwd>
<kwd lng="en"><![CDATA[one-dimensional characterization]]></kwd>
</kwd-group>
</article-meta>
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</back>
</article>
