An intelligent compaction (IC) specification that required variable feedback amplitude control was recently implemented on the TH 64 reconstruction project in Minnesota. At this site, IC and in-situ measurement values were collected to characterize the empirical relationships and variation associated with each measurement value, and ultimately to develop a process that better describes the geospatial nature of the data. A GIS database was created with IC measurement values and parallel quality assurance data to demonstrate one method for managing large quantities of data. Spatial geostatistics were also determined using variogram modeling and are discussed with regards to their potential for characterizing uniformity. The findings from this study provide guidance on implementing IC specifications regarding effective use of the technology and some of the challenges that still remain.
Samenvatting