Caliper log example showing loss of data in collapsed zone

Caliper Log

 

The caliper probe provides a “first look” at borehole conditions in preparation for additional logging.  The log is used to measure borehole diameter and rugosity, locate fracture zones, assess borehole quality and stability, and for calculation of bore volume for pile construction.  The example here was used to provide valuable information on the ability to construct cast-in-drill-hole piles in the weak and fractured foundation rock at that location.

 

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