Ground Vibration Levels Due to Impact Pile Driving in Sands
Why this work is in the frame
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Bibliographic record
Abstract
Ground vibrations generated from the pile driving process using impact hammers can have adverse effects on adjacent structures. Several factors contribute to the vibration levels, including the soil types, distance from the structures, and energy levels of the hammer. Depending upon the type of structure, regulatory authorities often impose restrictions on the allowable vibration level, typically in terms of peak particle velocity. Only a few methods are available to estimate the ground vibration levels due to pile driving. This paper presents the results of the vibration monitoring during the driving of six 406-mm-diameter, open-ended steel pipe piles and two H-piles (HP 360 x 174) using hydraulic impact hammers in medium dense to very dense, silty sands. Final penetration depths varied from 18 to 21 m. Six geophones were installed at the locations of each pile to monitor the vibration levels. The actual pile driving energy transferred to the pile was monitored using pile driving analyzer (PDA). The relationship between peak particle velocity and scaled distance was developed and compared against the methods available in literature.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it