SoluForm Gravel Bagwork is a prefilled geotextile bag system containing graded gravel aggregate, designed for ground stabilisation, drainage, erosion protection and temporary or permanent works.
Key Benefits:
Prefilled and Ready to Use
- No requirement for filling bags on site
- Consistent bag size and aggregate quantity
Fast Installation
- Simple placement methodology
- Minimal specialist equipment required for many applications
Flexible Construction
- Follows ground contours and accommodates minor settlement
- Can be installed in staggered or interlocking courses
Drainage
- Gravel provides a highly permeable fill, allowing water to pass through the bagwork
Environmentally Considerate
- Lower impact alternative to traditional concrete or rock construction where a flexible, permeable solution is appropriate
Cross Section of Gravel Bag Contents
Typical Applications:
- Culvert and pipe crossings
- Temporary access roads and haul routes enabling works
- Construction access over soft ground
- Drainage channels and swales
- Riverbank and watercourse protection
- Foundation/base for soil bagwork retaining structures
- Slope stabilisation
- Temporary works
- Flood diversion solutions
- Ground improvement
- Protection around drainage outfalls
Technical Specification
| Specification | Details |
|---|---|
| Bag material | Heavy duty woven / nonwoven geotextile (UVCA / CE compliant where required) |
| Fill material | Clean, graded 4-10mm Pea Gravel |
| Typical bag size | 650 mm (L) × 300 mm (W) × 100 mm (H) |
| Typical fill weight | 20 kg (approximately) |
| Delivery | Prefilled and ready to install |
| Installation | Hand placed / mechanical placement |
| Foundation | Prepared and levelled formation |
| Reinforcement | Shear keys where required |
| Supplied in 1 tonne pallet lots of 50 x 20kg bags | |
Installation Guide:
Bagwork shall be laid in the indicated header and stretcher bond arrangement with joints staggered between adjacent courses. Toe embedment shown is indicative and shall be increased where the bed material is erodible or scour or undermining may occur.
SoluForm shear keys shall be installed between courses in accordance with the manufacturer’s current guidance. The final shear key arrangement shall be confirmed for the proposed bag interfaces. Selected free draining granular backfill shall be placed and compacted progressively with the construction of the bagwork.
Final wall width, batter, embedment, bag arrangement, shear keys, anchoring, backfill, geotextile and any geogrid reinforcement shall be confirmed by the responsible designer.
Environmental Considerations:
The gravel filled bagwork system can provide a lower impact alternative to traditional concrete or rock construction where a flexible, permeable solution is appropriate. Environmental performance will depend on the geotextile material, gravel source, installation method and intended design life. If a biodegradable system is required, a biodegradable fabric such as hessian/coir should be specified separately.
The Bagwork System:
- Culverts & Crossings
- Drainage & Channels
- Erosion Protection
- Stability & Retaining
Simple & Effective
Design Considerations:
- Hydraulic flow velocities
- Scour forces
- Water levels
- Slope angle
- Ground conditions
- Required design life
- Bag dimensions and weigh
- Backfill aggregate grading
- Geogrid requirements
- Filter requirements
- Shear key requirements
- Expected settlement
- Loading from vehicles or structures
