Three-Dimensional Coupled Stress and Fluid Flow Analysis and Design Provisions for Lake Mead Intake No. 3 Low Level Pumping Station in Fractured Rock Mass
Bibliographic record
Abstract
The stability evaluation of the Low Lake Level Pumping Station (L3PS) at Lake Mead is presented in this study. The subsurface structure consists of a riser shaft, an access shaft, 34 well shafts, a 107-m-long forebay with a height of 11 m and width of 10 m, a stub connector tunnel, and a future forebay extension. The site geology contains several joint sets, faults, and shear zones intersecting the excavation. The behavior of the entire subsurface structure and the interaction of various components in the vicinity of fault/shear zones were evaluated using a coupled hydromechanical finite element method (FEM) approach. The response of the rock mass was also evaluated using a hybrid finite difference-discrete element method (FDM-DEM) by accounting for major and minor discontinuities within the rock mass. The areas exhibiting significant plastic yielding were identified for a prompt installation of rock support to stabilize the heading.
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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 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.000 |
| 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 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".