Linear infrastructure
Pipelines
A pipeline is only as good as the corridor knowledge behind it. SEC supports pipeline projects from route planning to the as-built record, working on one positioning framework and one geospatial dataset.
Sector challenges
Why corridors punish weak data
One datum end to end
A pipeline corridor must hold one datum and one data model from first station to last.
Unknown crossings
Existing pipelines, cables and drains crossing the route — some recorded, many not — each a safety and schedule risk at trenching time.
Terrain and ground behaviour
Route grading, water crossings and soils that drive design decisions long before welding starts.
Dispersed construction fronts
Multiple spreads working in parallel, all needing setting-out, verification and as-built capture on the same framework.
Project lifecycle
Route planning to final geospatial record
Each stage feeds the next: the corridor model informs design, design drives setting-out, and construction closes back into the GIS as the as-built record.
01
Route planning
Desktop route studies over terrain, land use and constraint layers — alternatives compared in GIS before field commitment.
02
Control network & CORS
Corridor control tied to network GNSS, referencing spreads, survey crews and machines to a common datum.
- CORS Network & RTK Services
- Control Networks & Benchmarks
03
Corridor & topographic survey
Detailed strip survey of the selected route — surface, features, crossings and access.
- Pipeline Survey
- Topographic Survey
04
UAV & LiDAR mapping
Airborne corridor capture producing orthomosaics and terrain models along the route.
05
Existing utility & crossing detection
Underground service survey along the route and at crossings, before design freeze and before excavation.
- Underground & Subsurface Detection
- GPR Survey
- Utility Mapping
06
Geotechnical support
Investigation and testing along the alignment for trench, crossing and facility design.
07
GIS route intelligence
Survey, detection and geotechnical results structured into a route database — the single source the project queries.
08
Construction setting-out & survey support
Right-of-way, centreline and facility setting-out with survey crews supporting the spreads through execution.
- Construction Survey
- Surveying & Geomatics
09
As-built survey
The installed line surveyed before backfill, while its geometry can still be recorded directly.
- Engineering Survey
- GNSS / RTK Survey
10
Final geospatial deliverables
Alignment data, crossing registers and as-built records handed over as drawings and GIS for the operations and integrity-management record.
Technology approach
Built for the long, thin site
Continuous corridor positioning
Network RTK corrections are used for positioning along the corridor, referencing crews to a common datum where network coverage is available.
Airborne corridor capture
UAV photogrammetry and LiDAR record route alignments and are reflown as the design or the ground changes.
A route database, not scattered files
Survey, detection and investigation results are held in one structured geospatial model of the corridor.
Field equipment
DJI
DJI Zenmuse L2
A LiDAR payload flown on a UAV platform to record ground and surface geometry as point measurements.
CHCNAV
CHCNAV i83 GNSS
A multi-constellation GNSS receiver used for field survey work referenced to the project frame.
Radiodetection
Radiodetection RD8200
A cable and pipe locator used within subsurface utility survey scopes.
What you receive
The corridor, documented
- Route study maps and constraint analyses
- Corridor control network documentation
- Strip topographic plans and terrain models
- Crossing and buried-utility registers
- Geotechnical reports along the alignment
- As-built alignment records
- Route GIS database and handover package
Plan the route on evidence. Build it on control.
From a first corridor study to as-built handover, SEC can scope the survey and geospatial workflow for your pipeline project.