Accelerated Reconstruction of I-15 through Salt Lake County, Utah, USA
Bibliographic record
Abstract
Interstate 15 (I-15) is a major north-south route linking Canada, the United States and Mexico. Originally designed and built with a life expectancy of 20 years, I-15 had exceeded its life expectancy and had started to show signs of aging. Therefore, Utah Department of Transportation (UDOT) decided to replace 27 km of I-15 through Salt Lake County at an approximate cost of 1.6 billion dollars to meet current highway and seismic standards and community needs. The total reconstruction included raising embankment heights to meet profile and grade requirements and widening embankments to accommodate additional traffic lanes. The subsurface soils beneath the corridor consist of 500 m or more of clay, silt and sand lakebed deposits, with soft to medium stiff plastic clays, silts and loose to medium dense sands in the upper 25 m. The soft clays have low shear strengths and are highly compressible. These conditions, coupled with a shorter time to reconstruct while maintaining two lanes of traffic through the corridor at all times, created a unique challenge for the design-build team. Based on the preliminary information provided by UDOT, the successful design build team, Wasatch Constructors (joint venture between Kiewit Pacific, Granite Construction and Washington Construction, with Sverdrup/Deleuw as the design consultants) proposed different techniques to address the settlement and stability issues along the 27 km corridor, within the accelerated schedule. An extensive monitoring program was undertaken during the initial phase of the project. Details of the approaches proposed, techniques used and preliminary results of the monitoring efforts along with final design approach will be presented in this paper.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.011 | 0.001 |
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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".