IFC 4.3.2.20251031 (IFC4X3_ADD2) under development

4.1.4.3.1 Earthworks Cuttings

土方开挖(Earthworks Cuttings)表示对现有或建造的土方构件(称为被挖空构件)的挖空,这些构件通常由 IfcGeotechnicalElement 的子类型或 IfcEarthworksFill 表示。IfcEarthworksCut 在语义上表示从被挖空构件中移除/挖掘材料的工作,并且相关的几何表示是创建的最终空腔。IfcEarthworksCut 可选择性地用另一个构件(如基础、土方回填或利用 IfcRelFillsElement 关系的基础)进行填充(全部或部分)。

下图展示了应用此概念时使用的通用类和关系。 此外,概念可能对常见或标准化的行业实践和场景具有特殊意义。对于这些特定的使用场景,下表展示了用户可采用的推荐通用使用模式列表。

G <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcElement.htm'>IfcElement</a> IfcElement 1. GlobalId [1:1] 2. OwnerHistory [0:1] 3. Name [0:1] 4. Description [0:1]      HasAssignments [0:?]      Nests [0:1]      IsNestedBy [0:?]      HasContext [0:1]      IsDecomposedBy [0:?]      Decomposes [0:1]      HasAssociations [0:?] 5. ObjectType [0:1]      IsDeclaredBy [0:1]      Declares [0:?]      IsTypedBy [0:1]      IsDefinedBy [0:?] 6. ObjectPlacement [0:1] 7. Representation [0:1]      ReferencedBy [0:?]      PositionedRelativeTo [0:?]      ReferencedInStructures [0:?] 8. Tag [0:1]      FillsVoids [0:1]      ConnectedTo [0:?]      IsInterferedByElements [0:?]      InterferesElements [0:?]      HasProjections [0:?] HasOpenings      HasOpenings [0:?]      IsConnectionRealization [0:?]      ProvidesBoundaries [0:?]      ConnectedFrom [0:?]      ContainedInStructure [0:1]      HasCoverings [0:?]      HasSurfaceFeatures [0:?] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRelVoidsElement.htm'>IfcRelVoidsElement</a> IfcRelVoidsElement 1. GlobalId [1:1] 2. OwnerHistory [0:1] 3. Name [0:1] 4. Description [0:1] 5. RelatingBuildingElement [1:1] RelatedEarthworksCut 6. RelatedOpeningElement [1:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcElement.htm'>IfcElement</a>:HasOpenings1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRelVoidsElement.htm'>IfcRelVoidsElement</a>:RelatingBuildingElement0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcEarthworksCut.htm'>IfcEarthworksCut</a> IfcEarthworksCut 1. GlobalId [1:1] 2. OwnerHistory [0:1] 3. Name [0:1] 4. Description [0:1]      HasAssignments [0:?]      Nests [0:1]      IsNestedBy [0:?]      HasContext [0:1]      IsDecomposedBy [0:?]      Decomposes [0:1]      HasAssociations [0:?] 5. ObjectType [0:1]      IsDeclaredBy [0:1]      Declares [0:?]      IsTypedBy [0:1]      IsDefinedBy [0:?] 6. ObjectPlacement [0:1] 7. Representation [0:1]      ReferencedBy [0:?]      PositionedRelativeTo [0:?]      ReferencedInStructures [0:?] 8. Tag [0:1] FillsVoids      FillsVoids [0:1]      ConnectedTo [0:?]      IsInterferedByElements [0:?]      InterferesElements [0:?]      HasProjections [0:?]      HasOpenings [0:?]      IsConnectionRealization [0:?]      ProvidesBoundaries [0:?]      ConnectedFrom [0:?]      ContainedInStructure [0:1]      HasCoverings [0:?]      HasSurfaceFeatures [0:?]      VoidsElements [1:1] EarthworksCutType 9. PredefinedType [0:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRelVoidsElement.htm'>IfcRelVoidsElement</a>:RelatedOpeningElement1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcEarthworksCut.htm'>IfcEarthworksCut</a>:IfcEarthworksCut0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRelFillsElement.htm'>IfcRelFillsElement</a> IfcRelFillsElement 1. GlobalId [1:1] 2. OwnerHistory [0:1] 3. Name [0:1] 4. Description [0:1] 5. RelatingOpeningElement [1:1] RelatedBuiltElement 6. RelatedBuildingElement [1:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcEarthworksCut.htm'>IfcEarthworksCut</a>:FillsVoids1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRelFillsElement.htm'>IfcRelFillsElement</a>:RelatedBuildingElement0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcEarthworksCutTypeEnum.htm'>IfcEarthworksCutTypeEnum</a> IfcEarthworksCutTypeEnum <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcEarthworksCut.htm'>IfcEarthworksCut</a>:PredefinedType1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcEarthworksCutTypeEnum.htm'>IfcEarthworksCutTypeEnum</a>:IfcEarthworksCutTypeEnum0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcCourse.htm'>IfcCourse</a> IfcCourse 1. GlobalId [1:1] 2. OwnerHistory [0:1] 3. Name [0:1] 4. Description [0:1]      HasAssignments [0:?]      Nests [0:1]      IsNestedBy [0:?]      HasContext [0:1]      IsDecomposedBy [0:?]      Decomposes [0:1]      HasAssociations [0:?] 5. ObjectType [0:1]      IsDeclaredBy [0:1]      Declares [0:?]      IsTypedBy [0:1]      IsDefinedBy [0:?] 6. ObjectPlacement [0:1] 7. Representation [0:1]      ReferencedBy [0:?]      PositionedRelativeTo [0:?]      ReferencedInStructures [0:?] 8. Tag [0:1]      FillsVoids [0:1]      ConnectedTo [0:?]      IsInterferedByElements [0:?]      InterferesElements [0:?]      HasProjections [0:?]      HasOpenings [0:?]      IsConnectionRealization [0:?]      ProvidesBoundaries [0:?]      ConnectedFrom [0:?]      ContainedInStructure [0:1]      HasCoverings [0:?]      HasSurfaceFeatures [0:?] 9. PredefinedType [0:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRelFillsElement.htm'>IfcRelFillsElement</a>:RelatedBuildingElement1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcCourse.htm'>IfcCourse</a>:IfcCourse0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcDeepFoundation.htm'>IfcDeepFoundation</a> IfcDeepFoundation 1. GlobalId [1:1] 2. OwnerHistory [0:1] 3. Name [0:1] 4. Description [0:1]      HasAssignments [0:?]      Nests [0:1]      IsNestedBy [0:?]      HasContext [0:1]      IsDecomposedBy [0:?]      Decomposes [0:1]      HasAssociations [0:?] 5. ObjectType [0:1]      IsDeclaredBy [0:1]      Declares [0:?]      IsTypedBy [0:1]      IsDefinedBy [0:?] 6. ObjectPlacement [0:1] 7. Representation [0:1]      ReferencedBy [0:?]      PositionedRelativeTo [0:?]      ReferencedInStructures [0:?] 8. Tag [0:1]      FillsVoids [0:1]      ConnectedTo [0:?]      IsInterferedByElements [0:?]      InterferesElements [0:?]      HasProjections [0:?]      HasOpenings [0:?]      IsConnectionRealization [0:?]      ProvidesBoundaries [0:?]      ConnectedFrom [0:?]      ContainedInStructure [0:1]      HasCoverings [0:?]      HasSurfaceFeatures [0:?] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRelFillsElement.htm'>IfcRelFillsElement</a>:RelatedBuildingElement1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcDeepFoundation.htm'>IfcDeepFoundation</a>:IfcDeepFoundation0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcEarthworksFill.htm'>IfcEarthworksFill</a> IfcEarthworksFill 1. GlobalId [1:1] 2. OwnerHistory [0:1] 3. Name [0:1] 4. Description [0:1]      HasAssignments [0:?]      Nests [0:1]      IsNestedBy [0:?]      HasContext [0:1]      IsDecomposedBy [0:?]      Decomposes [0:1]      HasAssociations [0:?] 5. ObjectType [0:1]      IsDeclaredBy [0:1]      Declares [0:?]      IsTypedBy [0:1]      IsDefinedBy [0:?] 6. ObjectPlacement [0:1] 7. Representation [0:1]      ReferencedBy [0:?]      PositionedRelativeTo [0:?]      ReferencedInStructures [0:?] 8. Tag [0:1]      FillsVoids [0:1]      ConnectedTo [0:?]      IsInterferedByElements [0:?]      InterferesElements [0:?]      HasProjections [0:?]      HasOpenings [0:?]      IsConnectionRealization [0:?]      ProvidesBoundaries [0:?]      ConnectedFrom [0:?]      ContainedInStructure [0:1]      HasCoverings [0:?]      HasSurfaceFeatures [0:?] 9. PredefinedType [0:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRelFillsElement.htm'>IfcRelFillsElement</a>:RelatedBuildingElement1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcEarthworksFill.htm'>IfcEarthworksFill</a>:IfcEarthworksFill0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcFooting.htm'>IfcFooting</a> IfcFooting 1. GlobalId [1:1] 2. OwnerHistory [0:1] 3. Name [0:1] 4. Description [0:1]      HasAssignments [0:?]      Nests [0:1]      IsNestedBy [0:?]      HasContext [0:1]      IsDecomposedBy [0:?]      Decomposes [0:1]      HasAssociations [0:?] 5. ObjectType [0:1]      IsDeclaredBy [0:1]      Declares [0:?]      IsTypedBy [0:1]      IsDefinedBy [0:?] 6. ObjectPlacement [0:1] 7. Representation [0:1]      ReferencedBy [0:?]      PositionedRelativeTo [0:?]      ReferencedInStructures [0:?] 8. Tag [0:1]      FillsVoids [0:1]      ConnectedTo [0:?]      IsInterferedByElements [0:?]      InterferesElements [0:?]      HasProjections [0:?]      HasOpenings [0:?]      IsConnectionRealization [0:?]      ProvidesBoundaries [0:?]      ConnectedFrom [0:?]      ContainedInStructure [0:1]      HasCoverings [0:?]      HasSurfaceFeatures [0:?] 9. PredefinedType [0:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRelFillsElement.htm'>IfcRelFillsElement</a>:RelatedBuildingElement1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcFooting.htm'>IfcFooting</a>:IfcFooting0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPavement.htm'>IfcPavement</a> IfcPavement 1. GlobalId [1:1] 2. OwnerHistory [0:1] 3. Name [0:1] 4. Description [0:1]      HasAssignments [0:?]      Nests [0:1]      IsNestedBy [0:?]      HasContext [0:1]      IsDecomposedBy [0:?]      Decomposes [0:1]      HasAssociations [0:?] 5. ObjectType [0:1]      IsDeclaredBy [0:1]      Declares [0:?]      IsTypedBy [0:1]      IsDefinedBy [0:?] 6. ObjectPlacement [0:1] 7. Representation [0:1]      ReferencedBy [0:?]      PositionedRelativeTo [0:?]      ReferencedInStructures [0:?] 8. Tag [0:1]      FillsVoids [0:1]      ConnectedTo [0:?]      IsInterferedByElements [0:?]      InterferesElements [0:?]      HasProjections [0:?]      HasOpenings [0:?]      IsConnectionRealization [0:?]      ProvidesBoundaries [0:?]      ConnectedFrom [0:?]      ContainedInStructure [0:1]      HasCoverings [0:?]      HasSurfaceFeatures [0:?] 9. PredefinedType [0:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRelFillsElement.htm'>IfcRelFillsElement</a>:RelatedBuildingElement1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPavement.htm'>IfcPavement</a>:IfcPavement0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcSlab.htm'>IfcSlab</a> IfcSlab 1. GlobalId [1:1] 2. OwnerHistory [0:1] 3. Name [0:1] 4. Description [0:1]      HasAssignments [0:?]      Nests [0:1]      IsNestedBy [0:?]      HasContext [0:1]      IsDecomposedBy [0:?]      Decomposes [0:1]      HasAssociations [0:?] 5. ObjectType [0:1]      IsDeclaredBy [0:1]      Declares [0:?]      IsTypedBy [0:1]      IsDefinedBy [0:?] 6. ObjectPlacement [0:1] 7. Representation [0:1]      ReferencedBy [0:?]      PositionedRelativeTo [0:?]      ReferencedInStructures [0:?] 8. Tag [0:1]      FillsVoids [0:1]      ConnectedTo [0:?]      IsInterferedByElements [0:?]      InterferesElements [0:?]      HasProjections [0:?]      HasOpenings [0:?]      IsConnectionRealization [0:?]      ProvidesBoundaries [0:?]      ConnectedFrom [0:?]      ContainedInStructure [0:1]      HasCoverings [0:?]      HasSurfaceFeatures [0:?] 9. PredefinedType [0:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRelFillsElement.htm'>IfcRelFillsElement</a>:RelatedBuildingElement1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcSlab.htm'>IfcSlab</a>:IfcSlab0
Figure 4.1.4.3.1.A

General Usage

ApplicableEntity
IfcGeotechnicalElement
表 4.1.4.3.1.B