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Accuracy Assessment of Semi-Automatic Measuring Techniques Applied to Displacement Control in Self-Balanced Pile
Zbigniew Muszyński1, Jarosław Rybak2, Paulina Kaczor3
1Faculty of Geoengineering, Mining and Geology, Wrocław University of Science and Technology, 50-370 Wrocław, Poland. zbigniew.muszynski@pwr.edu.pl.
Sensors (Basel, Switzerland)
|November 25, 2018
Summary
This study introduces innovative geodetic methods for static load tests on foundation piles, improving accuracy and reducing labor. These techniques offer a reliable alternative to traditional methods, enhancing foundation design verification.
Area of Science:
- Geotechnical Engineering
- Geodesy
- Structural Engineering
Background:
- Static load tests are crucial for foundation pile design and verification.
- Traditional methods like the inverted beam method are costly and labor-intensive.
- Dial gauges used in conventional tests are susceptible to systematic errors from reference beam displacement.
Purpose of the Study:
- To present an innovative instrumentation for static load tests using a self-balanced stand.
- To introduce semi-automatic geodetic measurement techniques as an alternative to traditional leveling.
- To compare the accuracy of geodetic methods with dial gauge readings for pile settlement.
Main Methods:
- Utilized a self-balanced stand constructed from a double steel pipe for static load tests.
- Employed semi-automatic geodetic techniques: motorized total station and terrestrial laser scanning.
- Processed acquired data to determine vertical pile displacements and compare with dial gauge results.
Main Results:
- The study successfully determined vertical displacements of the tested pile using geodetic methods.
- Comparison of geodetic measurements with dial gauge readings revealed discrepancies and confirmed the usefulness of the new techniques.
- Accuracy assessment based on collected observations validated the reliability of motorized total station and laser scanning.
Conclusions:
- Innovative geodetic instrumentation and semi-automatic measurement techniques enhance the accuracy of static load tests for foundation piles.
- These methods provide an independent reference system, mitigating errors associated with traditional setups.
- The findings confirm the practical utility and improved reliability of geodetic surveying in foundation engineering.
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