Pipe wall back grouting effect detection experimental system and method based on laser vibration meter
By constructing an experimental system for detecting the grouting effect behind the pipe jacking wall using a laser vibration meter, the problems of high cost and low accuracy in detecting the grouting effect during pipe jacking construction have been solved. This system enables efficient and comprehensive evaluation of the grouting effect and supports the promotion of laser non-destructive testing technology in pipe jacking projects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHANDONG UNIV
- Filing Date
- 2026-03-25
- Publication Date
- 2026-07-17
AI Technical Summary
In existing pipe jacking construction, the grouting effect detection methods are costly, have long operation cycles, and are difficult to achieve full-area quality assessment. Traditional indoor detection systems cannot effectively reproduce the geological constraint environment around the pipe jacking, resulting in poor detection accuracy. The application of laser vibration measurement technology in pipe jacking projects is limited.
A test system for detecting the grouting effect behind the pipe jacking wall based on a laser vibrometer is designed. By constructing a three-dimensional coupling relationship between pipe segments, grouting layer, and ground, and adding defect simulation components and anti-interference sound insulation layers, the system accurately reproduces the real environment of the pipe jacking grouting project and uses laser non-contact measurement technology for detection.
It achieves efficient and accurate grouting effect detection, avoids damage to the pipe segments, shortens the detection time, and enables systematic evaluation of the entire grouting layer, providing reliable experimental basis for the promotion and application of laser non-destructive testing technology in pipe jacking projects.
Smart Images
Figure CN122409495A_ABST