Comprehensive Geophysical Logging
Comprehensive Geophysical Logging Including: Cross-Hole Sonic Logging (CSL), 3-D MULTI-OFFSET Tomography (CSLT), and Gamma-Gamma Density Logging (GDL)
Case Foundation/AZDOT, Tucson, AZ
COLOG performed CSL and GDL to evaluate the integrity of 4-foot and 6-foot diameter, 88-foot length drill shaft foundations. When defects were identified, 3D cross-hole sonic logging tomography (CSLT) was used to volumetrically define the defect zone for remedial planning.
This case history involves the first known combined use of the CSL and GDL in the same steel access tubes.
