A borehole paired with a sounding (CPT, DMT or otherwise), sited close enoughtogether that their logs can be interpreted as one record of a single groundprofile. The two features stay physically distinct, each with its own location,construction record and results, but are interpreted jointly: the sounding suppliescontinuous stratigraphic resolution, and the borehole supplies the samples and indextests that calibrate it. The pair records the assumption that the same soil profileunderlies both. Membership is declared by the members: the borehole and the soundingeach carry a diggs:samplingFeatureGroupRef that points at this feature, and thisfeature holds no references to them. The pair is expected to have exactly twomembers, which the schema cannot enforce.
Database handle for the object. It is of XML type ID, so is constrained to beunique in the XML document within which it occurs. An external identifier for the object inthe form of a URI may be constructed using standard XML and XPointer methods. This is doneby concatenating the URI for the document, a fragment separator, and the value of the idattribute.
Source
<element name="BoreholeSoundingPair" substitutionGroup="diggs:AbstractSamplingFeatureGroup" type="diggs:BoreholeSoundingPairType"><annotation><documentation>A borehole paired with a sounding (CPT, DMT or otherwise), sited close enough together that their logs can be interpreted as one record of a single ground profile. The two features stay physically distinct, each with its own location, construction record and results, but are interpreted jointly: the sounding supplies continuous stratigraphic resolution, and the borehole supplies the samples and index tests that calibrate it. The pair records the assumption that the same soil profile underlies both. Membership is declared by the members: the borehole and the sounding each carry a diggs:samplingFeatureGroupRef that points at this feature, and this feature holds no references to them. The pair is expected to have exactly two members, which the schema cannot enforce.</documentation></annotation></element>