Reinforced Fill 

Infilled Void, Trigrid Geogrid, Industrial Unit, Meltham, UK

Project Information

Client:Towndoor
Contractor:Geogreen Solutions
Consultant:Towndoor
Product:Trigrid EX30 Biaxial Geogrid
Quantity:400m2
Benefits:- Allows placement of fill adjacent to non-structural wall
- Eliminates need for concrete retaining wall


Project Description

Towndoor owns and manages the site of the former David Brown Tractors Group factory in West Yorkshire. Once the UK’s largest tractor factory, the site is now a thriving collection of industrial units. The present buildings date from the 1940s but there are also remnants of the earlier Brooks silk mills which had two large concrete lined water reservoirs on the site.

The Challenge

Towndoor required additional hard standing for car parking immediately adjacent to a factory unit. There was space available but the existing ground was 1.5m – 2.0m below road level and in-filling was required. The factory wall was incapable of receiving lateral loads if the void was filled, so an independent retaining structure was required. A concrete retaining wall would be prohibitively expensive. Since the area was intended for parking, a vehicle barrier was also required to protect the factory wall from possible vehicle impact.

The Solution

ABG suggested the use of reinforced fill which would be self-supporting and therefore not impose any loads onto the factory wall. The crushed stone fill was reinforced with Trigrid EX30 biaxial geogrid using the wrap-around method of facing. It was essential that a small space remained between the face of the reinforced fill and the factory wall.

The factory wall was used to provide temporary lateral restraint to a “climbing” timber form which maintained the void between the reinforced fill and the factory wall as each layer was constructed. The reinforced fill comprised geogrid at 500mm spacing and a graded crushed stone.

Trigrid EX30 geogrid is a high performance geogrid comprising polyester tensile elements in a robust polypropylene sheath. The polyester core provides creep-resistant long term strength whilst the polypropylene sheath provides protection from installation damage.

ABG Trigrid Biaxial Geogrid

ABG Trigrid Biaxial Geogrid

The ABG Service

ABG was able to provide a solution which was completed in a month and a half prior to Christmas in weather conditions that might have prohibited conventional in-situ concrete work.

Contact ABG today to discuss your project specific reinforcement or stabilisation requirements and discover how ABG past experience and innovative products can help on your project.


Crushed stone and biaxial geogrid for a reinforced infill parking projectTrigrid temporarily held against brick wall as crush stone fill is placed.
Trigrid geogrid installation“Climbing” temporary timber void former.
Wrap-around geogrid reinforcement applicationLayers of Trigrid EX30 wrapped around 500mm of crushed stone.
Parking on the reinforced infilled areaParking on the reinforced infilled area


Trigrid Geogrid

Trigrid EX is an innovative high performance geogrid combining fibre-reinforced polymer strips within a woven structure. Its junctions are high-strength welded which helps create an interlocking structure from a powerful combination of hybrid materials.

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Trigrid Geogrid
 

Products

Trigrid Geogrid

Trigrid EX is an innovative high performance geogrid combining fibre-reinforced polymer strips within a woven structure. Its junctions are high-strength welded which helps create an interlocking structure from a powerful combination of hybrid materials.

more...

Trigrid Geogrid
 

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