Triaxial Tensile Strength Measurement of Compacted Clayey Soils
Bibliographic record
Abstract
ABSTRACT Tensile strength is strongly related to tensile cracking and is a key parameter required in the rational design of earth structures made of compacted clayey soils, such as earth dams, slopes, and embankments. Experimental studies related to the tensile strength of compacted soils that consider the influence of confining pressure is rather limited in the literature. For this reason, a novel experimental technique is developed for the measurement of triaxial tensile strength. Statically compacted soil specimens with a reduced central section are fabricated using a specially designed mold at different initial moisture contents but at the same dry density. The reduced triaxial extension stress path is followed during the test, which induces tensile failure on the reduced central section of the specimen. The triaxial tensile strength increases with an increase in initial matric suction (or decrease in initial degree of saturation) for the investigated range in this study. The variation of triaxial tensile strength with the confining pressure shows a non-monotonic variation, which is attributed to the volumetric deformation prior to failure and the failure mode transition. The test results provide clear evidence of the nonlinearity of the failure criterion, especially when the soil is subjected to tension.
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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 | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| 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) | 0.000 | 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".