Amerika Birleşik Devletleri
Amerika Birleşik Devletleri

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Chenani Nashri Tunnel Portal (2016)

Kaya düşmesine karşı koruma - Chenani Nashri Tunnel Portal (2016) 2016

Finished line of GBE-500A rockfall barrier above the Chenani Nashri Tunnel

Kaya düşmesine karşı koruma - Chenani Nashri Tunnel Portal (2016) 2016

Overview of the tunnel portal construction site - GBE-500A rockfall barrier line visible on the top

Kaya düşmesine karşı koruma - Chenani Nashri Tunnel Portal (2016) 2016

GBE-500A after installation, slopes below are being cut

Kaya düşmesine karşı koruma - Chenani Nashri Tunnel Portal (2016) 2016

GBE-500A after installation, slopes below are being cut

 

Sistemler

 

Sistem uzunluğu

80 m - 91 m

 

Kurulum Yılı

2016

Durum

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.

Açıklama

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)

Müşteri

N.H.A.I. (National Highways Authority of India)

Yüklenici

Leighton Welspun Contractors Pvt. Ltd.

Gösterilen obje

Road, Infrastructure

Korozyon koruması

Galvanized, GEOBRUGG SUPERCOATING

Mühendislik

GeoData Consultants for Leighton Wellspun Contractors Pvt. Ltd.

Kurulan diğer uygulamalar

Şev ve Yamaç koruma

Yerel yetkiliniz

Kevin H. Coyle
 

Kevin H. Coyle

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Saleh Feidi
 

Saleh Feidi

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John Kalejta
 

John Kalejta

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Bob Lyne
 

Bob Lyne

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Pierce Runnels, Civil Engineer
   

Pierce Runnels

General Manager Geobrugg North America

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Tim Shevlin
 

Tim Shevlin

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