Amerika Birleşik Devletleri
Amerika Birleşik Devletleri

Kaikōura SH1 - SR10

Peketā, 7374, Kaikōura
2021
Müşteri
Yüklenici
Gösterilen obje
Road
Enerji emme kapasitesi
500 kJ
Sistem boyu
6.0 m
Sistem uzunluğu
104 m
Korozyon koruması
GEOBRUGG SUPERCOATING, GEOBRUGG ULTRACOATING
Durum

The Kaikōura M7.8 Earthquake caused widespread damage to the road and rail corridor 20 km North and South of the Kaikoura town ship. Over 40 major slips inundated the road and rail with over 750,000 m³ of material form source zones up to 500 m above sea level.  The highly fractured Grey Wacke meant frequent future rockfalls were expected. The rockfall frequency and near vertical slope with no shoulder at SR10 created the requirement for a system that protected the road without encroaching onto it, was quick to install and requires minimal future maintenance. The slope on average is  80-90 degrees with the project being the final and most complex of the NCTIR rockfall protection systems.

Açıklama

A 104 m long self cleaning canopy (SCC-500) was installed at SR10. The self cleaning canopy was selected due to it's self cleaning ability and being able to withstand multiple rockfall impacts up to 500 kJ prior to requiring maintenance. The system has 13 posts ranging from 10-15 m in length with an upslope net length of between 12-26 m. The posts were anchored at 6 m high above the road with a 15 degree post inclination. The primary nets utilised high tensile (1770 MPa) ROCCO ring mesh with a secondary TECCO 65/3 for aperture control.  The structure has a support rope separation at post 6 to enable a split construction and a more efficient installation.  Type III flex heads were installed to transfer the off axis load back to the Gewi 32 anchor bar and a gap fill kit was installed to ensure  100 % system coverage. An active TECCO 65/3 system was installed in several areas below the canopy to mitigate the lower rockfall hazards. The system was installed using a combination of helicopters, cranes, Hiab's, scissor lifts and human power.

Yerel yetkiliniz

Kevin H. Coyle
Kevin H. Coyle
Regional Manager Northeast
Natural Hazards
Geobrugg North America, LLC
3 Beaudet Terr
Columbia CT 06237 / Amerika Birleşik Devletleri
Saleh Feidi
Saleh Feidi
Regional Manager California
Natural Hazards
Geobrugg North America, LLC
8921 Emperor Ave.
San Gabriel, California 91775 / Amerika Birleşik Devletleri
John Kalejta
John Kalejta
Regional Manager Central US
Natural Hazards
Geobrugg North America, LLC
3215 67th Avenue Pl
Greeley CO 80634 / Amerika Birleşik Devletleri
Bob Lyne
Bob Lyne
Regional Manager Southeast
Natural Hazards
Geobrugg North America, LLC
8004 Windspray Drive
Summerfield NC 27358 / Amerika Birleşik Devletleri
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 / Amerika Birleşik Devletleri