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  <IfcVersion version="IFC4X4" />
  <Name>Pset_GeoScienceFeatureTypeIntactRock</Name>
  <Definition>Properties for intact rock.</Definition>
  <Applicability />
  <ApplicableClasses>
    <ClassName>IfcGeoScienceFeature/GEOTECHNICALUNIT</ClassName>
  </ApplicableClasses>
  <ApplicableTypeValue>IfcGeoScienceFeature/GEOTECHNICALUNIT</ApplicableTypeValue>
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    <PropertyDef ifdguid="d2949ea28ef448d79594a2e6d0762b24">
      <Name>Lithology</Name>
      <Definition>Defines all natural materials resulting from the combination of minerals, particles or biogenic elements.</Definition>
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          <DataType type="IfcIdentifier" />
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    <PropertyDef ifdguid="a5cedd1f1e5a453dbaffafc9529a6379">
      <Name>GeologicalFormation</Name>
      <Definition>A geological formation, or simply formation, is a body of rock with a consistent set of physical characteristics (lithology) that distinguishes it from adjacent bodies of rock, and which occupies a particular position in the layers of rock exposed in a geographical region (the stratigraphic column).</Definition>
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    <PropertyDef ifdguid="fc0025264c724c548031a0b6ec448573">
      <Name>UnconfinedCompressiveStrength</Name>
      <Definition>The unconfined compressive strength (UCS) is the maximum axial compressive stress that a right-cylindrical sample of material can withstand under unconfined conditions.</Definition>
      <PropertyType>
        <TypePropertySingleValue>
          <DataType type="IfcPressureMeasure" />
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    <PropertyDef ifdguid="51595aaa4ef9451f922cb3f3919f8ed6">
      <Name>YoungModulus</Name>
      <Definition>Elastic modulus, mean value, α=0°.</Definition>
      <PropertyType>
        <TypePropertySingleValue>
          <DataType type="IfcModulusOfElasticityMeasure" />
        </TypePropertySingleValue>
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    <PropertyDef ifdguid="85331f80d1ed11e1800000215ad4efdf">
      <Name>PoissonRatio</Name>
      <Definition>A measure of the lateral deformations in the elastic range.</Definition>
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        <TypePropertySingleValue>
          <DataType type="IfcPositiveRatioMeasure" />
        </TypePropertySingleValue>
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      <NameAliases>
        <NameAlias lang="en">Poisson Ratio</NameAlias>
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        <DefinitionAlias lang="en" />
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    <PropertyDef ifdguid="7561e794915842b6a10e7015c0cbcd6c">
      <Name>TensileStrength</Name>
      <Definition>Indicates the ability to withstand breakage apart under applied force.</Definition>
      <PropertyType>
        <TypePropertyTableValue>
          <Expression />
          <DefiningValue>
            <DataType type="IfcPressureMeasure" />
          </DefiningValue>
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    <PropertyDef ifdguid="3e5e7d8ea2e8428cbae57a991b457aa2">
      <Name>MineralComposition</Name>
      <Definition>Description of the mineral composition according to ISO standard 14689:2017.</Definition>
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    <PropertyDef ifdguid="ecf21fa88ccd495aa84b8474b367f457">
      <Name>VoidRatio</Name>
      <Definition>Ratio of the volume of void to the volume of solid.</Definition>
      <PropertyType>
        <TypePropertySingleValue>
          <DataType type="IfcPositiveRatioMeasure" />
        </TypePropertySingleValue>
      </PropertyType>
      <NameAliases />
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    <PropertyDef ifdguid="2816777a96b04971b8640812af040e11">
      <Name>Weathering</Name>
      <Definition>Description of the physical and chemical changes produced by atmospheric agents in rocks or other deposits at or near the earth's surface. These changes result in disintegration and de composition of the material.</Definition>
      <PropertyType>
        <TypePropertySingleValue>
          <DataType type="IfcText" />
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      <NameAliases />
      <DefinitionAliases />
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