Schema documentation for component diggs:DesignGeosyntheticLayer

The design of one geosynthetic reinforcement layer within a load transfer platform: product identity, stiffness and strength (each meaningless without the strain level and elapsed time they were taken at), the reduction factors applied to reach a long-term design value, the tension the layer must carry by load path, anchorage, allowable strain, and where the layer sits within the platform. Generic design machinery, not specific to rigid inclusions: geosynthetic-reinforced load transfer platforms are standard practice for column-supported embankments generally, including stone columns and driven piles. The as-built counterpart, diggs:GeosyntheticType, is declared in the rigid inclusion schema, so design and as-built for this concept are in different files. Tensile stiffness (J) is an isochronous secant modulus, defined only once a strain level and elapsed time are stated, and long-term design strength depends on design life and the reduction-factor chain in the same way; both are also direction-dependent, since machine and cross-machine directions differ substantially in most geogrids. Hence atStrain, atTime and atDesignLife accompany the stiffness and strength, and direction is its own field. Repeat this object once per layer: its presence states that basal reinforcement is used and the number of repeats is the layer count, so neither is stated as a separate value.

<diggs:DesignGeosyntheticLayer gml:id="" xmlns:diggs="http://diggsml.org/schemas/3" xmlns:gml="http://www.opengis.net/gml/3.2">
  <gml:description xlink:href="" nilReason="">{0,1}</gml:description>
  <gml:identifier codeSpace="">{0,1}</gml:identifier>
  <diggs:manufacturer>{0,1}</diggs:manufacturer>
  <diggs:productName>{0,1}</diggs:productName>
  <diggs:polymerType>{0,1}</diggs:polymerType>
  <diggs:reinforcementType codeSpace="">{0,1}</diggs:reinforcementType>
  <diggs:direction>{0,1}</diggs:direction>
  <diggs:tensileStiffness howDetermined="" qualifier="" uom="">{0,1}</diggs:tensileStiffness>
  <diggs:atStrain howDetermined="" qualifier="" uom="">{0,1}</diggs:atStrain>
  <diggs:atTime howDetermined="" qualifier="" uom="">{0,1}</diggs:atTime>
  <diggs:longTermDesignStrength howDetermined="" qualifier="" uom="">{0,1}</diggs:longTermDesignStrength>
  <diggs:atDesignLife howDetermined="" qualifier="" uom="">{0,1}</diggs:atDesignLife>
  <diggs:reductionFactor>{0,unbounded}</diggs:reductionFactor>
  <diggs:membraneFactor howDetermined="" qualifier="" uom="">{0,1}</diggs:membraneFactor>
  <diggs:designTension>{0,unbounded}</diggs:designTension>
  <diggs:anchorageLength howDetermined="" qualifier="" uom="">{0,1}</diggs:anchorageLength>
  <diggs:allowableStrain howDetermined="" qualifier="" uom="">{0,1}</diggs:allowableStrain>
  <diggs:creepStrainLimit howDetermined="" qualifier="" uom="">{0,1}</diggs:creepStrainLimit>
  <diggs:midSpanDeflection howDetermined="" qualifier="" uom="">{0,1}</diggs:midSpanDeflection>
  <diggs:elevation owns="false" xlink:href="" nilReason="">{0,1}</diggs:elevation>
  <diggs:extent xlink:href="" nilReason="" owns="false">{0,1}</diggs:extent>
</diggs:DesignGeosyntheticLayer>

Database handle for the object. It is of XML type ID, so is constrained to be unique in the XML document within which it occurs. An external identifier for the object in the form of a URI may be constructed using standard XML and XPointer methods. This is done by concatenating the URI for the document, a fragment separator, and the value of the id attribute.

<element name="DesignGeosyntheticLayer" type="diggs:DesignGeosyntheticLayerType"> <annotation> <documentation>The design of one geosynthetic reinforcement layer within a load transfer platform: product identity, stiffness and strength (each meaningless without the strain level and elapsed time they were taken at), the reduction factors applied to reach a long-term design value, the tension the layer must carry by load path, anchorage, allowable strain, and where the layer sits within the platform. Generic design machinery, not specific to rigid inclusions: geosynthetic-reinforced load transfer platforms are standard practice for column-supported embankments generally, including stone columns and driven piles. The as-built counterpart, diggs:GeosyntheticType, is declared in the rigid inclusion schema, so design and as-built for this concept are in different files. Tensile stiffness (J) is an isochronous secant modulus, defined only once a strain level and elapsed time are stated, and long-term design strength depends on design life and the reduction-factor chain in the same way; both are also direction-dependent, since machine and cross-machine directions differ substantially in most geogrids. Hence atStrain, atTime and atDesignLife accompany the stiffness and strength, and direction is its own field. Repeat this object once per layer: its presence states that basal reinforcement is used and the number of repeats is the layer count, so neither is stated as a separate value.</documentation> </annotation> </element>

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