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Drilled Shaft
bridge.foundation_system.deep_foundation.drilled_shaftpublishedEdit
Definition
Large-diameter cast-in-situ deep foundation shaft.
- Class kind
- component
- Abstract
- no
- Depth
- 3
- Origin
- reference source
- Ontology
- engineering-reference-book.bridge v1.0.0
- Aliases
- Drilled Pier, Large Diameter Bored Pile
- Abbreviations
- —
- Last changed
- 7/27/2026, 2:50:05 PM
Identification
- Positive labels
- Drilled Shaft, Drilled Pier, Large Diameter Bored Pile
- Negative labels
- —
- Visual features
- single large-diameter deep shaft
- Min identity clues
- 2
Evidence
- Preferred views
- plan, section, foundation_schedule
- Evidence types
- view, detail, schedule, note, dimension, level, section_callout
- Source trace required
- yes
Measurements (4)
| Name | Symbol | Unit | Required |
|---|---|---|---|
| Diameter | D | m/mm | required |
| Length | L | m/mm | required |
| Instance Count | N | count | required |
| Concrete Grade | fck | — | required |
Relationships (0)
None declared.
BOQ items (1)
| Item code | Formula | Result | Unit |
|---|---|---|---|
bridge.concrete.drilled_shaft.volume | (PI / 4) * D^2 * L * N | volume | m3 |
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.