Presentation on GEO TEXTILES FOR DEVELOPMENT OF NORTH EASTERN REGION by Shri P.S.Barbora, In-Charge, NERC, Ahmedabad Textile Industry’s Research Association (ATIRA) Guwahati done at Workshop on Geo Textiles in Civil Engineering Organized at Ahmedabad by #IEIGSC

1. GEO TEXTILES FOR DEVELOPMENT OF
NORTH EASTERN REGION
P.S.Barbora
In-Charge, NERC
Ahmedabad Textile Industry’s Research Association
Guwahati

2. What is geotechnical textiles?
• Textile products manufactured from
natural and man-made fibres, woven
and non-woven, used in geological
applications involving rock, soil, or
other natural elements in civil
engineering projects.
Functions
• Separation
• Reinforcement
• Filtration
• Drainage
• Protection
•Geotechnical textiles are used globally to
address dangers to infrastructure caused
by degradation and natural disasters.
GEOTECHNICAL TEXTILES
Benefits of Geotechnical
Textiles:
 Durability
 Initial Strength
 Ecologically Efficient
 Low Maintenance
 Customizable Fabric

3. Geotechnical textiles are incognito supporters of
infrastructure…
• Provide structural stability and safety to the
structure
• Multifunctional elements to improve the
serviceability of infrastructure
• Can help extend the maintenance intervals for
infrastructure
Service potential of over 120 years in structures
EROSION
CONTROL
FILTRATION SEPARATION
PACKAGI SEALINGREINFORCEME
NT
PROTECTIO
N
DRAINA
Mitigation
potential of
geotechnical
textiles
BENEFITS OF GEOTECHNICAL TEXTILES

4. • Road and railways
• Reinforced slopes
and walls
• Landfills
• Tunnelling
• Reservoir
Linings
APPLICATION AREAS OF GEOTECHNICAL TEXTILES

5. Road construction
Slope and hill protection
Water reservoir lining
Potential applications of
geotechnical textiles in NER
Topographic characteristics
of NER
• Floods and heavy rainfall
• Landslides and sinking
zones
• Road blocks
GEOTECHNICAL TEXTILES APPLICATIONS IN NER

6. Road constructed on both sides. 300
mtr stretch in between to connect
these sides is under heavy landslide
and no optimal solution is available
using conventional solution.
Landslide area
SITE IN ARUNACHAL PRADESH

7. •Heavy rain causes mud
slides in these regions
which restricts
commuting through these
roads.
•This is a very important
road connection as it
reduces travel distance
from Itanagar to
Guwahati by 50 kms.
•Very limited
conventional solutions
are available, but will
not stabilize the soil
conditions.
•An optimal solution may
be provided to these
conditions using
geotechnical textiles
ANOTHER SITE IN ARUNACHAL PRADESH

8. CONCEPT OF USE OF GEOGRID FOR SOIL
REINFORCEMENT

9. CONCEPT OF USE OF GEOGRID FOR SOIL
REINFORCEMENT

10. CONCEPT OF USE OF GEOGRID FOR SOIL
REINFORCEMENT

11. SCHEMES ON TECHNICAL TEXTILES FOR NER
• SCHEME FOR PROMOTING USAGE OF GEOTEXTILES
IN NER
• SCHEME FOR PROMOTING USAGE OF
AGROTEXTILES IN NER.

12. SCHEMES FOR PROMOTING USAGE OF GEOTEXTILES
IN NER
• The Scheme was launched in March 2015.
• Aim is to promote usage of Geotechnical Textiles in the North
Eastern Region.
• The Scheme supports the incremental cost, if any, due to use of
Geotextiles for following areas:
• Road Construction,
• Slope Stabilisation
• Water Reservoirs
• Financial Outlay : Rs.427 Crore
• Duration : 05 Years ( 2014-15 to 2018-19)

13. • To demonstrate use of Geotechnical textiles as a modern
cost-effective technology in the development of
infrastructure in fragile geological conditions of NER
• To promote the use of geotechnical textiles material and
create a market for these products in the NER through
inducing demand side pull;
• Stimulate development of technical textile industry in the
NER
SCHEME OBJECTIVES

14. The scheme has two components:
• Component-I :Hard intervention (Rs374 Cr)
Under this component Incremental cost of the Pilot Stretches
of identified ongoing or new projects, due to application of
geotechnical textile solutions, will be reimbursed to the
State/Central Project Authorities;
• Component-II : Soft Interventions (Rs43 Cr)
Under this component activities such as site inspection and TEV
study, design solutions and DPR preparation, on site
monitoring and testing, specification formulation, training and
capacity building, awareness campaigns, market development
support, and evaluations studies etc will be funded directly by
the Central Govt. to the identified agencies;
• Administrative Cost of the Scheme: Rs 10 Cr
DETAILED SCHEME OUTLINE

15. 1. Pilot Project identification : by Project Authority
2. Site inspection : by COE
3. DPR-1 of the pilot project :
• To be prepared by Project Authority based on traditional solution.
• Cost of DPR to be funded by Project Authority
4. DPR -2 of the pilot project :
• To be prepared on Geotechnical textiles-based solution by the agency nominated by
the Central Government (COE Geotech) with the participation Project Authority
• Cost of preparation of DPR will be funded by Central government
• DPR 2 would also include bid specifications for geotechnical textile material for
floating tender
SCHEME IMPLEMENTATION METHODOLOGY

16. 5. DPR 1 (traditional solution) will be compared with DPR 2
(technical textiles-based solution)
Following scenarios may emerge:
1) DPR 1 < DPR 2: Example, DPR 1(Rs 100) < DPR 2 (Rs 110). Rs 100 by State Govt; Rs 10
+ Technical support and soft interventions by Central Govt
2) DPR1 = DPR2: Cost borne entirely by Project Authority. Technical support and soft
interventions from Central Govt
3) DPR 1> DPR 2: Savings accrued to Project Authority. Technical support and soft
interventions from Central Govt
6. The Project Authorities may dovetail financing of their pilot
projects from any other source, including Central Plan
assistance, as per the original project. This scheme will support the
incremental costs of such pilot projects due to introduction of
geotechnical textile solutions over and above the original project
cost
SCHEME IMPLEMENTATION METHODOLOGY

17. 7. Tender for the pilot stretch with technical textiles solution will
be floated based on bid specifications in DPR 2 by Project
Authority with technical assistance from COE
8. Tender evaluation through a committee consisting of Project
Authority, with technical assistance from COE
9. Project commences with implementation guidelines based on
DPR 2
SCHEME IMPLEMENTATION METHODOLOGY

18. GEOTEXTILES IN NORTH EAST

19. NUMBER OF ROAD PROJECTS : 9 roads under PMGSY
PROJECT IMPLEMENTATION
AGENCY
: Manipur State Rural Roads
Division, Govt of Manipur
TOTAL PROJECT COST : 18.89 Crores
INCREMENTAL COST
APPROVED
: 3.13 Crores
TOTAL LENGTH OF ROAD : 45.39 Kms
MANIPUR

20. SITE CONDITIONS

21. SITE CONDITIONS

22. ISSUES

23. • Designed by using Non-Woven Geotextiles and Biaxial Geogrids to
overcome the above issues.
TYPICAL CROSS SECTION OF PAVEMENT WITH GEOSYNTHETICS
IMPROVEMENT WITH GEOSYNTHETICS

24. TECHNICAL ADVANTAGES

25. ECONOMICALADVANTAGES

26. : 9
: Command Area Dev.
Agency, Govt of Manipur
: 1.62 Crores
: 76026 m3 / 7,60,26,000 Litres
MANIPUR

27. SITE CONDITIONS

28. SITE CONDITIONS

29. SITE CONDITIONS

30. ISSUES
• Sub soil consists of black cotton soil at certain reservoirs and
Silty sand & clayey gravel at certain locations.
• All reservoirs are drying off during summer due to seepage of
water through the reservoir base and slopes.
• Severe water problem for drinking and irrigation to the
nearby habitations.
• No conventional lining system adopted.
• Sliding of slopes due to softening of soil reducing reservoir
capacity and increasing regular O&M

31. IMPROVEMENT WITH GEOSYNTHETICS
• Reservoir Lining System Designed by using Non-Woven Geotextiles,
and HDPE Geomembranes to overcome the above issues.
TYPICAL CROSS SECTION OF RESERVOIR LINING WITH GEOSYNTHETICS

32. • Improved the reservoir Capacity.
• Maintain the water in the Reservoir throughout the year.
• Reduce the seepage through the reservoir base and side
slopes.
• Increased Design Life
• Reduces Disturbance and Weakening of Original base and
side slopes.
• Increases the stability of slopes and Reservoir
TECHNICAL ADVANTAGES

33. ECONOMICALADVANTAGES
• Reduced earthwork quantities
• Fewer construction layers are needed
• More simplified and rapid constructions can be established
• Savings on construction time can be obtained
• Do not require large construction equipments
• Do not require special skills for construction except few
cases
• Lower construction costs and reduces the cost of O&M
• Sustainable consumption: lower carbon footprint.
• Saving of Natural resources for future generation by
avoiding concrete lining.
• Environmentally friendly solution

34. MANIPUR:
• Airport Road of length 2.2 Kms at Manipur has been
completed with a cost of Rs. 1.16 Crores. (Approved incremental
Cost:1.45 Cr.)
PROGRESS

35. MANIPUR:
• Nine Roads under PMGSY (45.39 kms) approved with a cost of Rs 3.14
Crores
• Bishnupur-Nungba Road (7 stretches of road, 26 stretches for slope
stabilisation & 1 Reinforced soil structure approved with a cost of 16.82
Crores
• Nine Water Reservoir Projects of Manipur approved with a cost of Rs.1.61
Crores.
• 1 Water Reservoir of Project Tourist Circuit Manipur-Imphal-Moirang-
Khongjom-Moreh approved with a cost of Rs 1.47 Crores
TRIPURA
• One road project (2.6 Kms) from Kholabari to Jharnatilla, Mohanpur
division approved with a cost of Rs.21,39,250/-
• Two water reservoirs projects at Bhagat singh hostel in Agartala &
Women College in Agartala approved with a cost of Rs.22,67,865 and
Rs.27,07,100/ respectively
PROGRESS

36. MEGHALAYA:
• One Road Project from Shillong to Nongstoin approved with a cost of Rs
4.95Crores
• Balat - Bagli Road approved with a cost of Rs 1.91Crores
ARUNACHAL PRADESH
• Construction of Retaining Wall at NIT Jote approved with a cost of Rs 0.96
Crores.
MIZORAM:
• 3 Road Projects approved at a cost of Rs 66.02 Crores
 Chhumkhum to Chawngte – 41.53 kms - Rs 25, 65, 00,000
 Serchip – Sialsuk – Buarpui – 55 kms - Rs 20, 88, 20, 000
 Chaphai – Zokhawthar - 27.250 kms - Rs 19, 48, 60, 000
PROGRESS