Cyclic Behaviour and Dynamic Properties of Soils Under Simple Shear Loading
Bibliographic record
Abstract
An experimental study was carried out on sensitive clays obtained from Ottawa-Quebec area (Kinburn, ON, Breckenridge and Outardes-2, QC) and relatively uniform sand obtained from the Fraser Delta (BC).Large strain tests were conducted at over consolidated and normally consolidated states to investigate the monotonic and cyclic behaviour of sensitive clays.Small strain tests were carried out over a range of consolidation stress levels to investigate the dynamic properties of clays and Fraser River sand.All tests were performed using the Carleton University simple shear device, which was modified to enable confident measurements at very small strains.Test results show that shear strength of clays is influenced by consolidation stress, over consolidation ratio and clay content.Further, this study reveals that these sensitive clays at the tested sites have relatively strong cyclic resistance at in-situ stress level, but cyclic resistance decreased significantly if the clays are normally consolidated.Site-specific modulus reduction and damping ratio curves are proposed for Ottawa-Quebec area clays and Fraser River sand.These site-specific curves are unique for sensitive clays and cannot be equated to any curves published in the literature.The curves generated for Fraser River sand are close to the average and lower bound curves reported in the literature for sands.5.3.1 Estimation of the secant shear modulus (Gs) and damping ratio (ξ) ....... 106 5.3.2Estimation of the maximum shear modulus and modulus reduction values of sensitive clays .................
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.000 | 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) | 0.002 | 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".