RESEARCH ON NONDESTRUCTIVE TESTING OF GROUTING SLEEVE MEMBERS BY ULTRASONIC TOMOGRAPHY

QU Ming; SHAO Zhiwei; ZHAO Weitao; CHA Xiaoxiong

doi:10.13204/j.gyjzG21020316

Volume 51 Issue 9

Jan. 2022

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QU Ming, SHAO Zhiwei, ZHAO Weitao, CHA Xiaoxiong. RESEARCH ON NONDESTRUCTIVE TESTING OF GROUTING SLEEVE MEMBERS BY ULTRASONIC TOMOGRAPHY[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(9): 207-215. doi: 10.13204/j.gyjzG21020316

Citation:

QU Ming, SHAO Zhiwei, ZHAO Weitao, CHA Xiaoxiong. RESEARCH ON NONDESTRUCTIVE TESTING OF GROUTING SLEEVE MEMBERS BY ULTRASONIC TOMOGRAPHY[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(9): 207-215. doi: 10.13204/j.gyjzG21020316

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RESEARCH ON NONDESTRUCTIVE TESTING OF GROUTING SLEEVE MEMBERS BY ULTRASONIC TOMOGRAPHY

doi: 10.13204/j.gyjzG21020316

1. Shenzhen Construction Engineering Quality and Safety Supervision Station, Shenzhen 518034, China;
2. School of Civil and Environmental Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China

Received Date: 2021-02-03
Available Online: 2022-01-11

Abstract

Abstract

For grouting sleeve members, the cement-based grouting material in the grouting sleeve is regarded as the concrete in a broad sense. In order to study the effectiveness of ultrasonic tomography in nondestructive testing of the compactness of grouting sleeve members, the compactness of the grouting material in the sleeve was analyzed from three aspects of theoretical research, finite element simulations and experimental testing. The results showed that:the ultrasonic wave could not propagate directly through the sleeve where the grouting material was completely empty, but diffracted according to the shortest path. The difference of the distribution diagram for sound velocity was not obvious due to the sleeve void, the lower acoustic velocity region corresponding to dense or empty states could not be effectively identified from the acoustic velocity. For the inspection method of inclined ducts with inclined ports, the compactness of the distribution diagram of grouting material in the sleeve could be inferred by observing the loss of the grouting material in the inclined duct.
- grouting sleeve,
- ultrasonic tomography,
- nondestructive testing

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References(15)

References

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