Building embankments over weak ground
A key feature of many infrastructure projects, it’s vital that embankments are constructed with a firm and stable foundation. On weak and difficult soils this can present numerous challenges. However, Tensar has a number of ways around this problem avoiding the need for expensive excavation and replacement of the soft soil or piling.
How Tensar can help
The TensarTech Geocell Mattress System is worth considering when stability and the need to control differential settlement and to reduce maximum settlement and lateral spread are critical. A basal mattress, usually 1m deep, is rapidly fabricated on site from geogrids to form a continuous open cellular structure, which is filled with granular material. It can readily accommodate vertical band drains to accelerate consolidation settlements.
high strength knitted geotextiles can be installed usually as a single layer to reinforce the base of embankments and provide additional stability against deep seated shear surfaces. They can be used to reduce or avoid staged construction periods, helping to keep projects on time and on budget. They can also be used to span potential voids in areas over mineworkings or dissolution features
There are several potential benefits to using these methods of construction compared with unreinforced alternatives:
Controlled differential settlement: without the need for piles
Environmental and cost advantages: compared with soil excavation and replacement
Faster construction: allows rapid placement of embankment fill, often avoiding staged construction
Keep projects on time and on budget: predictable construction and controlled settlement without expensive piling helps keep your project on schedule
Whatever your project, we can help
Tensar’s innovative technology has been used worldwide, and a full range of case studies and brochures is available. We also offer full technical support including expert advice, specifications, drawings, certified designs and details of pricing, and we regularly run free workshops across the globe.