Assertion: quality designation | /r/HasProperty | rqd
Facets:
Source sentences:
text: Rock Quality Designation (RQD) is a measure of quality of rock core taken from a borehole.
text: Uses of Rock Quality Designation (RQD) in Construction
text: Rock-quality designation (RQD) is a rough measure of the degree of jointing or fracture in a rock mass, measured as a percentage of the drill core in lengths of 10 cm or more.
text: Rock quality designation (RQD) after twenty years", U.S. Army Corps of Engineers Contract Report GL-89-1 , Waterways Experiment Station, Vicksburg, MS (67).
text: Rock quality designation (RQD) has several definitions.