← bridge ontologyBridge Asset › Ground and Geotechnical System
Rock Layer
bridge.ground_system.rock_layerpublishedEdit
Definition
Rock stratum relevant to foundation embedment or bearing.
- Class kind
- component
- Abstract
- no
- Depth
- 2
- Origin
- reference source
- Ontology
- engineering-reference-book.bridge v1.0.0
- Aliases
- Bedrock, Rock Stratum
- Abbreviations
- —
- Last changed
- 7/27/2026, 2:50:05 PM
Identification
- Positive labels
- Rock Layer, Bedrock, Rock Stratum
- Negative labels
- —
- Visual features
- profile line or geological hatch
- Min identity clues
- 2
Evidence
- Preferred views
- profile, section, geotechnical_schedule
- Evidence types
- view, detail, schedule, note, dimension, level, section_callout
- Source trace required
- yes
Measurements (3)
| Name | Symbol | Unit | Required |
|---|---|---|---|
| Top Level | TOL | m | required |
| Bottom Level | BOL | m | required |
| Material Type | MAT | — | required |
Relationships (1)
- interacts_with
bridge.foundation_system
BOQ items (0)
None — no quantity is derived from this class directly.
Validation
- Blocking if missing
- yes
- Human review allowed
- yes
no_evidence_no_numberretain_document_page_bbox_and_evidence_iddo_not_mix_drawing_revisionsdo_not_average_conflicting_valuesprefer_explicit_labels_over_shape_onlymatch_plan_elevation_and_section_when_applicable
Provenance
- Basis
- engineering_reference
- Project values included
- no
Children (0)
None — this is a leaf class and can be deleted.