CHUM 3.1

CHUM uses the CSL method to perform quality control of deep foundations
3.1.5 (See all)

The CHUM (Cross Hole Ultrasonic Monitor) uses the Cross-hole Sonic Logging (CSL) method to perform high-resolution quality control of deep foundations.
The system uses an ultrasonic wave sent from a transmitter to a receiver pulled through water filled access tubes embedded in the concrete. The measured arrival time and energy are strongly dependent on the concrete quality.

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