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- Attach 2 accelerometers and 2 strain transducers symmetrically to pile shaft at the level of 2 pile diameters from pile head.
- Enter the parameters, test sensors. Adjust the sensors if necessary.
- Drive 2 - 5 blows to the pile head using a heavy hammer.
- Check the signal quality, re-drive if the signals are not good.
- Turn off the equipment and move to other pile.
- Project name and location/ The owner, designer, piling contractor and the tester.
- Tested pile records.
- Summary table of test results.
- Graphs of forces, velocity, bearing capacity, energy to time.
- Simulate load-settlement relationship graph and computing tables for CAPWAP analysis.
- Conclusion and comments.
Purpose of the test: determine bearing capacity of bored piles/pre-cast pile/barrette... based on the measurement of velocity and forces at pile head using CASE method and/or CAPWAP. Testing method: Method used is to measure the velocity and stress by accelerometers and strain transducers under the impact of hammer, which is enough to drive the test pile 2-3mm down Testing procedure: arcordance to testing standard: ASTM D4945 or equivalent standards of other countries and Designer 's specifications. Testing steps: Testing report: |
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