Daman, India | Government of Gujarat (Roads & Buildings Department)
Client wanted to construct stable & durable approach road to the Rajiv Gandhi setu bridge connecting Nani Daman & Mot Daman. The soil on which road to be constructed is a soft soil, which can’t take heavy loads.
The approaches of the embankment to be constructed on soft soils having CBR value less than 2 . The maximum height of the embankment to be constructed on the soft foundation soil is 11m with a heavy traffic live load
The project consultant proposed 2 layers of high strength polyester woven geotextile of strength 200 KN/m in the principal direction & a granular fill of 900mm thickness at the base. The geotextile proposed acts as a basal reinforcement for the embankment and also as a separation layer to separate the granular fill of 900mm thick and the proposed fill.
Techfab India Industries Ltd herein referred as TFI supplied 82000 sqm of high strength polyester woven geotextile TFI 3200 of strength 200 KN/m in the principal direction, meeting all the technical specifications as proposed by the consultant for the project.
The approach road was constructed on the embankment fortified with the material supplied by TechFab india, leading to sustainable road withstanding traffic with heavy loads.
The approach embankments had to be constructed on soft soils with a CBR value less than 2, which cannot withstand heavy loads. With embankment heights up to 11 m and heavy traffic expected, reinforcement was essential to ensure stability and durability.
Very soft foundation soil with poor load-bearing capacity.
High embankment height (up to 11 m).
Heavy live traffic loads requiring long-term stability.
Risk of excessive settlement and shear failure without reinforcement.
The consultant recommended:
Two layers of high-strength polyester woven geotextile (TFI 3200) with tensile strength of 200 kN/m in the principal direction.
A 900 mm thick granular fill at the base.
This acted as basal reinforcement and a separation layer between the soft soil and the fill.
Provides basal reinforcement, distributing loads and preventing shear failure.
Functions as a separator, preventing mixing of soft soil with granular fill.
Enables proper compaction of fill material.
Enhances stability and service life of the embankment under heavy traffic.
TechGeo PET Woven Geotextile (TFI 3200) supplied by TechFab India Industries Ltd., with a total quantity of 82,000 sqm.
The embankment approaches were successfully constructed, resulting in a stable and sustainable road capable of withstanding heavy traffic loads. The solution delivered long-term durability and met all technical specifications.
