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Estados Unidos
A BRUGG GROUP COMPANY
Estados Unidos

Kaikoura State Highway 1 (SR1-2)

Kaikoura SH1, 7343, Peketa Kaikoura, New Zealand
2019
Promotor
NCTIR and NZTA
Contratante
Rock Control
Objecto protegido
Estrada
Absorção de energia máxima
500 kJ
Altura do sistema
3.0 m
Comprimento do sistema
100 m
Proteção contra a corrosão
GEOBRUGG ULTRACOATING®
Situação inicial

The Kaikoura M7.8 earthquake caused widespread damage to the road and rail corridor for approximately 20 km North and South of the Kaikoura township. Over forty major slips inundated the road and rail with more than 750'000 m³ of material from source zones up to 500 meters above sea level.  The highly fractured Grey Wacke means frequent future rockfalls and debris loads. The high rockfall frequency created the requirement for a geohazard solution at Site 1-2.

Descrição

The original design and installation was a 50 meters long 3 meters high GBE-500A barrier. After installation, the decision was made to install an additional 50 meters of barrier to protect the highway further. The system was easily extended by upgrading the northernmost post to a support rope separation with no material wastage.


The GBA-500A is a hinged post system. The barrier has upslope anchors, which reduce the post foundation forces and therefore minimise impact to the precast concrete wall and shotcrete retaining walls below. The rockfall barrier used a 10 meters post spacing, had two downslope anchors due to a curved alinement and as previously mentioned was split into two sections with a support rope separation. Due to the highly fractured rock mass, self-drilling anchors were required. Geobrugg type II flex heads transfer the loads to the bar anchors. The mesh was ultra-coated due to its proximity to the sea.

O seu contacto local

Kevin H. Coyle
Kevin H. Coyle
Regional Manager Northeast
Riscos naturais
Geobrugg North America, LLC
3 Beaudet Terr
Columbia CT 06237 / Estados Unidos
Telefone +1 860 377 3230

Formulário de contacto

Saleh Feidi
Saleh Feidi
Regional Manager California
Riscos naturais
Geobrugg North America, LLC
8921 Emperor Ave.
San Gabriel, California 91775 / Estados Unidos
Telefone +1 909 706 8964

Formulário de contacto

John Kalejta
John Kalejta
Regional Manager Central US
Riscos naturais
Geobrugg North America, LLC
3215 67th Avenue Pl
Greeley CO 80634 / Estados Unidos
Telefone +1 505 220 1404

Formulário de contacto

Bob Lyne
Bob Lyne
Regional Manager Southeast
Riscos naturais
Geobrugg North America, LLC
8004 Windspray Drive
Summerfield NC 27358 / Estados Unidos
Telefone +1 336 337 0945

Formulário de contacto

Pierce Runnels, Civil Engineer
Pierce Runnels, Civil Engineer
General Manager Geobrugg North America
Riscos naturais
Geobrugg North America, LLC
22 Centro Algodones
Telefone +1 505 771 4080
Telemóvel +1 505 400 0796

Formulário de contacto

Tim Shevlin
Tim Shevlin
Sales Director
Riscos naturais
Geobrugg North America, LLC
4676 Commercial St. SE, PMB 174
Salem OR 97302 / Estados Unidos
Telefone +1 503 423 7258

Formulário de contacto