EMBANKMENT PROTECTION OF NATIONAL HIGHWAY WITH GEOCELL FOR THARAD - DHANERA - PANTHWADA SECTION OF NH-168, GUJARAT
TFI TECH CELL GEOCELL TCI - 660 X 75mm
The National highway NH 168 was planned for better connectivity between Gujarat and Rajsthan through Dhanera Panthwad section. This project site is located in the north part of Gujarat where weather is generally dry most of the year, but from couple of years heavy rains are also observed. The major part of National highway is coming under filling section considering low existing ground levels which was water logged during heavy rain. The height of embankment are varies from 3m to 8m. Due to limited Right of way the slope of embankment planned for 1: 1.5 and for higher embankment to maintain the same slope RCC Toe walls were constructed. As the slope is steepe and growth of vegetation in this area seems difficult, department has decided to go for some advance solution to protect the slope from erosion due to heavy wind and rains.
It was required to provide efficient erosion control system for embankment slope for this project. Project scope included embankment slopes at multiple locations.
Contractor and department officials has did some trial patches vetiver grass, protection with coir mat, Plain cement concrete lining and Geocell with GSB & Geocell with soil.
Considering Site conditions and availibity of local materials , Techfab India has suggested the solution with Geocell filled with GSB. As per the sketch attached below: And department as well as contractor fount this solution viable for this situation., and major part of embankment protection done with this solution.
Facts about the different Erosion Control Systems:
Project work is still going on and expected to get completed by March 2021. Roads and building authority were really happy with the technical support received from TechFab India and really appreciated the Installation training received from TechFab India. Partial Portion of the scope which is completed already faced this monsoon and performed very well.