Jacking Force Analysis of Pipe Installation Using a Modified Guided Boring Method
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
The modified guided boring method (MGBM) is a new pipe installation method used in hard ground, where a conventional guided boring method is not applicable. Estimation of the required jacking force for pipe installation is critical for the design of MGBM projects; however, no such study has previously been performed. Hence, this paper presents a study on the jacking force estimation of pipe installation using MGBM. First, the field data of jacking force during the pipe installation stage of an MGBM project in Edmonton, Canada, was collected and analyzed. Second, three commonly used jacking force estimation models developed for microtunneling or pipe jacking installation were adapted to calculate the jacking force for this MGBM project, and the results were compared with the field data. The comparison indicated that an adapted model overestimated the field data. When the passive earth pressure was used as the face pressure, another adapted model yielded a close estimation to the field data, and a third model slightly underestimated the field data.
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.
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 | 0.002 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| 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 it