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United States

myGeobrugg

Chenani Nashri Tunnel Portal (2016)

Jammu & Kashmir, India
2016
Customer
N.H.A.I. (National Highways Authority of India)
Engineering
GeoData Consultants for Leighton Wellspun Contractors Pvt. Ltd.
Contractor
Leighton Welspun Contractors Pvt. Ltd.
Protected object
Road, Infrastructure
Energy absorption capacity
500 kJ
System height
4.0 m
System length
80 m - 91 m
Corrosion protection
Galvanized, GEOBRUGG SUPERCOATING
Other installed applications
Slope Stability
Initial situation

The site was initially proposed to be treated with shotcrete but persistent seepage of water which caused slope failures and cracks on the portals led the concessionaire to go for an alternate solution which does not only stabilize the slopes but also offers a green solution and allows the hydrostatic pressure to disperse. National Highways Authority of India decided to actively stabilize the tunnel portals. A protective measure had to be selected to stabilize the exposed cutting against superficial instabilities, tilting as well as sliding of individual blocks and rockfalls.

As an extra safety measure, 500 kJ barrier line was introduced and placed on one of the berms to provide extra safety besides portal stabilization. Rockfall barriers protect agains rockfalls from above stabilized area.

Description

The GBE-500A rockfall barrier system protects the entry and exit levels of the Chenani Nashri Tunnel from all sorts of major and minor rockfalls or any falling object which could in anyway harm the tunnel portals and traffic. Thus it helps reducing the risks involved as well as the complete protection from rockfall based calamity.

See also our slope project Chenani Nashri Tunnel Portal (1)

Your local contact

Kevin H. Coyle
Kevin H. Coyle
Regional Manager Northeast
Natural Hazards, Coastal Erosion Protection
Geobrugg North America, LLC
3 Beaudet Terr
Columbia CT 06237 / United States
Saleh Feidi
Saleh Feidi
Regional Manager California
Natural Hazards, Coastal Erosion Protection
Geobrugg North America, LLC
8921 Emperor Ave.
San Gabriel, California 91775 / United States
John Kalejta
John Kalejta
Regional Manager Central US
Natural Hazards, Coastal Erosion Protection
Geobrugg North America, LLC
3215 67th Avenue Pl
Greeley CO 80634 / United States
Bob Lyne
Bob Lyne
Regional Manager Southeast
Natural Hazards, Coastal Erosion Protection
Geobrugg North America, LLC
8004 Windspray Drive
Summerfield NC 27358 / United States
Pierce Runnels, Civil Engineer
Pierce Runnels, Civil Engineer
General Manager Geobrugg North America
Natural Hazards
Geobrugg North America, LLC
22 Centro Algodones
Tim Shevlin
Tim Shevlin
Sales Director
Natural Hazards
Geobrugg North America, LLC
Salem OR 97302 / United States