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Research on the optimization of grouting flow detection sensor layouts based on laser ranging technology.
Lichang Wang1,2, Wei Long1,2, Zhanghui Fei3
1School of Geosciences and info-physics, Central South University, Changsha, 410075, China.
Scientific Reports
|May 9, 2025
Summary
This study introduces a laser ranging method for accurate grouting flow measurement, overcoming limitations of electromagnetic flowmeters in low-flow conditions. Optimal sensor placement in a stable slurry zone significantly reduces measurement errors.
Area of Science:
- Geotechnical Engineering
- Fluid Dynamics
- Measurement Science
Background:
- Accurate grouting flow measurement is vital for construction quality and waste reduction.
- Electromagnetic flowmeters exhibit reduced precision in low-flow scenarios.
Purpose of the Study:
- To develop and validate a laser ranging-based method for precise grouting flow measurement.
- To analyze slurry liquid level fluctuations for improved flow detection.
Main Methods:
- Theoretical modeling and indoor experiments were conducted.
- Numerical simulations analyzed liquid level fluctuations under varied conditions.
- Slurry surface dynamics were investigated across different water-cement ratios and stirring speeds.
Main Results:
- Liquid level stability varied radially based on water-cement ratios.
- Three distinct slurry surface zones were identified: turbulent, stable, and high-fluctuation.
- Optimal sensor placement in the stable zone achieved measurement errors as low as 0.83%.
Conclusions:
- The laser ranging method offers a significant improvement over traditional flowmeters.
- Validated framework for sensor layout optimization enhances grouting flow detection reliability.
- This technique is crucial for advancing precision in geotechnical engineering applications.
