GRW/Ground Improvement/TBT-GRW-014

Geotextile and Geogrid Installation

Groundworks & Earthworks › Ground Improvement › Geotextile and Geogrid Installation

Presenter		Project
Location		Date

Geotextiles and geogrids are synthetic materials placed in the ground to separate, reinforce, or filter soils.
Rolls are heavy and awkward; a typical geotextile roll weighs 50 to 150 kilograms and is several metres wide.
Deployment involves unrolling large sheets across open ground, often in windy conditions on exposed sites.
Geogrid installation in embankments requires operatives to work on slopes during fill placement and compaction.
Cutting geotextiles and geogrids with knives and scissors creates laceration risks to hands and fingers.
Pins, stakes, and U-clips used to anchor materials in position are sharp trip and puncture hazards.
Plant trafficking over partially covered geogrid layers can catch and drag the material, trapping workers.
UV degradation weakens exposed geotextiles; material must be covered promptly after installation.
Manual handling injuries from carrying and positioning heavy rolls are common during large-scale installations.
CDM 2015 and the Manual Handling Operations Regulations 1992 apply to geosynthetic installation work.

Manual handling	Heavy rolls and awkward positioning cause back injuries, especially when deploying material across slopes and soft ground.
Laceration risk	Cutting geotextiles and geogrids with blades causes hand and finger lacerations if cut-resistant gloves are not worn.
Entanglement	Loose geogrid material caught by plant tyres or tracks can drag and trap workers in the fill placement zone.

Don't

Use mechanical handling to lift and position heavy geotextile and geogrid rolls.
Wear cut-resistant gloves when cutting geotextiles and geogrids with blades.
Secure deployed material with pins before plant traffics across the work area.
Cover installed geotextiles promptly to prevent UV degradation of the material.
Brief plant operators on geogrid locations to avoid catching loose material.
Work in teams when deploying large rolls across slopes and uneven ground.
Remove or cap sharp anchor pins and stakes once the material is covered.
Plan the deployment sequence to minimise manual handling of heavy rolls.
Store rolls on level ground and prevent them rolling by using chocks.
Inspect the subgrade surface for sharp objects before laying geotextiles.

DON'T manually carry heavy geotextile rolls when mechanical handling is available.
DON'T cut geosynthetic materials without wearing cut-resistant protective gloves.
DON'T leave loose geogrid material where plant can catch and drag it.
DON'T leave exposed geotextiles uncovered for extended periods; UV weakens them.
DON'T walk across unanchored geotextile on slopes; it slides underfoot.
DON'T leave sharp anchor pins exposed as trip and puncture hazards.
DON'T deploy large sheets in high winds without securing edges first.
DON'T drive plant directly on exposed geogrid without the specified fill cover.
DON'T store rolls where they could roll toward workers or excavation edges.
DON'T lay geotextile on subgrade containing sharp stones that puncture the material.

See also: Groundworks Safety Awareness | Slope Stability Awareness

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