Maanshan Society Acoustic Testing Tube, Bengbu Acoustic Testing Tube

Ma'anshan Society Acoustic Detection Pipe Bengbu Acoustic Detection Pipe
Data compilation
Implementation of "Technical Specifications for Construction Pile Foundation Inspection"
Determination of pile integrity
Judgment based on the following table
Pile body integrity judgment table by acoustic transmission method
Category??Characteristics
Ⅰ??The acoustic parameters of each testing section are normal and no sound velocity is lower than the lower limit abnormality
Ⅱ??A certain The acoustic parameters of individual measuring points in the detection profile are abnormal. No sound velocity is lower than the lower limit value. III?? Abnormal acoustic parameters of multiple measuring points appear continuously in a certain detection profile. Two or more detection profiles are measured at the same depth. The acoustic parameters of the point are abnormal. The local concrete sound velocity is abnormally lower than the lower limit value
IV?? There are obvious abnormalities in the acoustic parameters of multiple measuring points in a certain detection profile. Two or more detection profiles are measured at the same depth. The acoustic parameters of the points are obviously abnormal. The sound velocity of the pile concrete is generally lower than the lower limit value, or the first wave cannot be detected or the first wave received signal is seriously distorted.