Specification:
Technical code for testing of building foundation piles JGJ 106-2003
Technical specification of Dynamic pile tests for Highway Engineering JTG/TF81-01-2004
Technical specification for inspection of concrete defects by ultrasonic method CECS21:2000
Technical specification for detecting strength of concrete by ultrasonic-rebound combine method CECS 02:2005
Code for investigation of geotechnical GB50021-2001
Purpose
Testing of building foundation piles by cross-hole sonic logging;
Inspection of concrete defects by ultrasonic method, such as uncompacted, cellular, hole area.
Detecting strength of concrete by ultrasonic-rebound combine method
Detecting strength of concrete crevice by ultrasonic-rebound combine method
Detecting defects of one hole by one trigger two receives
Testing dynamic performance of geotechnical investigation, rock, concrete etc