Chenani Nashri Tunnel Portal (2016) 2016 - Geobrugg Chenani Nashri Tunnel Portal (2016) 2016 - Geobrugg
Chenani Nashri Tunnel Portal (2016) 2016 - Geobrugg Chenani Nashri Tunnel Portal (2016) 2016 - Geobrugg
Chenani Nashri Tunnel Portal (2016) 2016 - Geobrugg Chenani Nashri Tunnel Portal (2016) 2016 - Geobrugg
Chenani Nashri Tunnel Portal (2016) 2016 - Geobrugg Chenani Nashri Tunnel Portal (2016) 2016 - Geobrugg

Chenani Nashri Tunnel Portal (2016)

   Partager
Ville
Jammu & Kashmir
Pays / Région
Inde
Année d’installation
2016
Client
N.H.A.I. (National Highways Authority of India)
Ingénierie
GeoData Consultants for Leighton Wellspun Contractors Pvt. Ltd.
Entrepreneur
Leighton Welspun Contractors Pvt. Ltd.
Objet protégé
Route/Rue, Infrastructure
Systèmes
GBE-500A
Classe énergétique
500 kJ
Hauteur du système
4.0 m
Longueur du système
80 m - 91 m
Protection anticorrosion
Galvanized, GEOBRUGG SUPERCOATING®
Autres applications installées
Stabilisation des pentes
Situation de départ

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)

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