1a:T405,

The client proposed building an access road to the villas in the hilly terrains of the Nilgiris in Coonoor, Tamil Nadu. The challenges included difficulty for the movement of heavy construction machinery on the hilly terrain due to deep ruts. Also, heavy traffic movement was affected due to improper and insufficient drainage, especially during the monsoons. Therefore, there was a need to have a definitive solution for subgrade improvement.

Strata’s team of geotechnical experts proposed the design using StrataWeb® for the strengthening of the flexible pavement. Introducing StrataWeb® SW 356-150 geocells in a granular base or subbase improves pavement longevity and economizes the overall crust thickness.

StrataWeb® was selected as an innovative solution that saved approx. 15% of the cost, helped faster execution of work with an excellent inbuilt drainage feature for strengthening flexible pavement in the hilly terrain.

1b:T43b,Pavement systems must support repeated traffic loads while maintaining structural integrity over their design life. In highways, industrial roads, logistics yards, and other [heavy-duty pavements](https://www.strataglobal.com/glossary/rigid-pavement/), the base layer plays a critical role in distributing loads and protecting the underlying subgrade.\n When [pavements](https://www.strataglobal.com/media_blog/what-is-a-road-pavement-and-how-is-it-designed/) are constructed over weak or variable ground conditions, conventional granular bases can experience lateral movement, rutting, and deformation under repeated loading. These conditions can affect pavement performance and lead to increased maintenance requirements over time.\nWith extensive experience in ground engineering and soil stabilization, Strata provides solutions that improve the performance of pavement base layers in challenging ground conditions. By incorporating cellular confinement technology such as StrataWeb®, the base layer can be reinforced to maintain stability and effectively support traffic loads.1c:T469,[Pavement base stabilization](https://www.strataglobal.com/glossary/pavement-design/) is implemented by installing [StrataWeb®](https://www.strataglobal.com/strataweb-geocell-for-soil-erosion-and-stabilization/) within the base or sub-base layer over the prepared subgrade. The system forms a cellular confinement structure that holds the granular [infill material](https://www.strataglobal.com/glossary/infill-material/) within interconnected cells.\nAfter placement, the cells are filled with suitable [aggregate](https://www.strataglobal.com/glossary/aggregates/) or other approved infill materials and compacted to form the base layer. The cellular structure confines the infill and limits the lateral displacement of the aggregate particles when subjected to traffic loads.\nUnder loading, the confined material works together with the cellular framework to create a stabilized layer that distributes stresses within the pavement structure. This interaction between the infill material, the cellular system, and the underlying soil helps maintain the structural behavior of the base layer under repeated traffic conditions.