Project Snapshot: Geotextile Supply for Infrastructure Works in Medinipur, West Bengal

Product supplied: Ocean Non Woven Geotextile
Quantity: 1,50,000 SQM
Location: Medinipur, West Bengal

Ocean Non Wovens supplied 1,50,000 square metres of Ocean Non Woven Geotextile for infrastructure works in Medinipur, West Bengal. At this scale the geotextile is doing basic ground engineering work across a very large footprint: keeping soil and aggregate apart, letting water out, and holding fine soil in place.

Why the site needed a geotextile

Medinipur gets heavy monsoon rain, and groundwater levels rise and fall through the year. Fine-grained alluvial soils, common in the region, soften when wet. Under traffic or fill loads, wet fines pump up into aggregate layers, and stone presses down into the soft soil. Once the two mix, the granular layer loses its load-bearing capacity and drainage, and the surface ruts and settles.

What the geotextile does

• Separation: placed between the subgrade and the aggregate, it stops fine soil and stone intermixing, so the structural layers keep their thickness and strength.
• Filtration: water passes through the fabric while soil particles are held back, which limits erosion of fines and keeps drains from silting.
• Drainage: the needle-punched structure lets water move out of the soil, which reduces pore-water pressure build-up under load.

Getting filtration right is a balance: the fabric’s apparent opening size (ASTM D4751) must be small enough to retain the subgrade soil, and its permittivity (ASTM D4491) high enough that water passes more freely through the fabric than through the soil.

Consistency across a large area

On a 1,50,000 SQM supply, uniform quality matters as much as the grade itself. Consistent thickness, tensile strength and permeability from roll to roll mean the whole site behaves the same way, without weak patches that later turn into soft spots or maintenance problems. On delivery, contractors typically check roll labels against the specification and test samples for mass per unit area (ASTM D5261), thickness (ASTM D5199) and grab tensile strength (ASTM D4632).

During installation, panels are overlapped (more on softer ground), aggregate is pushed forward over the fabric rather than tipped and driven on it directly, and the fabric is covered promptly to limit UV exposure.

Ocean Non Wovens manufactures and supplies non woven geotextiles for infrastructure and ground improvement projects across India. See more case studies or contact the team to match a geotextile grade to your soil and loading.