IfcEarthworksCutTypeEnum

Semantic definitions at the type

Type definition

This container defines the different predefined types of earthworks cut elements that can specify an IfcEarthworksCut.

Enumeration definition

Constant	Description
TRENCH	Excavation whose length greatly exceeds the depth and width. Trench is typically excavated for strip foundations or for buried services such as drainage or cabling.
DREDGING	Underwater excavation to recover material or to create a greater depth of water.
EXCAVATION	General type of excavation when more accurate type is not specified.
OVEREXCAVATION	Excavation that goes beyond the depth required for construction, in order to replace unsuitable material.
TOPSOILREMOVAL	Excavation where the topmost layer of soil containing organic material is cut or stripped. The removed topsoil can be used as fill (EarthworksElement) e.g. where planting is planned.
STEPEXCAVATION	Removal of the soft part of the existing road slope, where it is dug into steps, when widening a road.
PAVEMENTMILLING	Removal of expired material from top of pavement to be replaced by new material.
CUT	Excavation where soil or rock below topsoil is cut to the depth required for the construction of facilities such as roads and railways. The removed material can be used as fill (IfcEarthworksElement) for embankments or to form a level surface on which to build.
BASE_EXCAVATION	Excavation for basements of buildings, abutments of bridges or similar structures either partially or completely below ground level.
CONFINEDOPENEXCAVATION	An open slope excavation where the sides are vertical or near vertical.
ANCHOREDOPENEXCAVATION	A confined open excavation where the vertical walls are anchored.
BRACEDOPENEXCAVATION	A confined open excavation where the vertical walls are braced.
USERDEFINED	User-defined type
NOTDEFINED	Undefined type.

Formal representations

XML Specification

 <xs:simpleType name="IfcEarthworksCutTypeEnum">

  <xs:restriction base="xs:string">

   <xs:enumeration value="trench"/>

   <xs:enumeration value="dredging"/>

   <xs:enumeration value="excavation"/>

   <xs:enumeration value="overexcavation"/>

   <xs:enumeration value="topsoilremoval"/>

   <xs:enumeration value="stepexcavation"/>

   <xs:enumeration value="pavementmilling"/>

   <xs:enumeration value="cut"/>

   <xs:enumeration value="base_excavation"/>

   <xs:enumeration value="confinedopenexcavation"/>

   <xs:enumeration value="anchoredopenexcavation"/>

   <xs:enumeration value="bracedopenexcavation"/>

   <xs:enumeration value="userdefined"/>

   <xs:enumeration value="notdefined"/>

  </xs:restriction>

 </xs:simpleType>

EXPRESS Specification


TYPE IfcEarthworksCutTypeEnum = ENUMERATION OF (

 TRENCH, 
 DREDGING, 
 EXCAVATION, 
 OVEREXCAVATION, 
 TOPSOILREMOVAL, 
 STEPEXCAVATION, 
 PAVEMENTMILLING, 
 CUT, 
 BASE_EXCAVATION, 
 CONFINEDOPENEXCAVATION, 
 ANCHOREDOPENEXCAVATION, 
 BRACEDOPENEXCAVATION, 
 USERDEFINED, 
 NOTDEFINED);
END_TYPE;


 EXPRESS-G diagram

Item	SPF	XML	Change	Description
IFC4x2 to IFC4x3_RC1
IfcEarthworksCutTypeEnum			ADDED
IFC4X3_ADD2 to IFC4X4_draft
IfcEarthworksCutTypeEnum
CONFINEDOPENEXCAVATION			ADDED
ANCHOREDOPENEXCAVATION			ADDED
BRACEDOPENEXCAVATION			ADDED