Construction Site

A construction site is a defined territory where construction work is carried out. From a geodesy perspective, a construction site is a place where a project is implemented and where precise geodetic support is needed throughout the construction process.

Geodetic works at construction site:

• Before construction - topographic surveying, geodetic network creation
• At construction start - building axis and foundation stakeout
• During construction - floor height control, structure staking
• After construction - as-built surveys, commissioning

Construction site geodetic network:

• Base points - outside construction zone, stable
• Stakeout points - on excavation edges
• Height benchmarks - for vertical control
• Axis markers - on profile boards

Precision requirements at construction site:

• Foundations - ±5-10 mm in plan, ±5 mm in height
• Walls, columns - ±3-5 mm vertically
• Floor slabs - ±3-5 mm in height
• Prefab structures - depending on requirements

Construction site documentation:

• Stakeout certificate - confirmation of axis placement
• As-built drawings - by construction phases
• Geodetic journal - measurement register
• Control measurement protocols

Challenges at construction site:

• Point protection from construction equipment
• Ensuring visibility between points
• Working in various weather conditions
• Coordination with other construction participants

Modern technologies at construction site:

• Robotic total stations - single operator work
• GNSS - rapid point staking in open areas
• Machine control systems - 3D machine guidance
• Laser scanning - progress and control

Quality geodetic support at the construction site is the foundation for successful project implementation according to design.