Potential Vertical Rise and Differential Soil Movement in Post-Tensioned Slabs-on-Ground: Why They Are Not Relatable or Interchangeable
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Bibliographic record
Abstract
Using PTI DC10.5-19, geotechnical engineers can provide recommendations and design parameters which do not require extensive site work (such as removal and replacement) of expansive clays that result in cost-effective designs. Extensive site work is often a significant cost and time-consuming operation. The increasing use of the PTI DC10.5 method and post-tensioned reinforced designs demonstrate that post-tensioned slabs are an economical solution to building foundations. PTI DC10.5-19, Standard Requirements for Design and Analysis of Shallow Post-Tensioned Foundations on Expansive and Stable Soils is an IBC-referenced standard for the design of slab-on-ground foundations. Misconceptions exist regarding whether the potential vertical rise (PVR) index often determined in site investigations can be used in place of the value of differential soil movement, (ym) defined in PTI DC10.5-19. This paper will outline the requirements of relevant IBC sections, explain the differences between PVR and ym, discuss why they are not interchangeable or relatable, and review the geotechnical aspects of design of a post-tensioned slab-on-ground foundation using PTI DC10.5.
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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 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 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