Finite Element Investigation on the Response of Tunnel Rock-Supports in Zones Subjected To Squeezing Occurrence
Bibliographic record
Abstract
The minimization in the travel time for people and good is a fundamental factor in the economic progress of any nation.Achieving this objective can be realized through tunnelling, which often involves digging at significant depths.When tunnelling at high depths, the rock masses, especially if they are weak, can generate significant stress, so leading to substantial deformation during excavation operations.These large deformations around the tunnel frequently exceed the capacity of standard rock support systems, making it challenging to maintain the tunnel's stability and safety during construction.The current study deals with Finite Element analysis to investigate the stress-strain behaviour of the rock support of a deep tunnel under squeezing conditions.The rock support performances are evaluated and compared considering several fracturing conditions by means of a wide GSI range at simulating a decrease of the rock mass properties due to the proximity of tectonized zones.Different rock mass types are also studied with variations of mi parameter and uniaxial compressive strength.The performances of the rock supportssliding or stiff ribs -are evaluated and compared in terms of stresses and strain acting on.
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How this classification was reachedexpand
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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".