GEOHAZARD - FOLLOW US

USA
A BRUGG GROUP COMPANY
USA

Kaikoura SH1 - NS13

Kaikoura - Half Moon Bay, 7371, Kaikoura SH1, Nowa Zelandia
2019
TECCO® G65/3 Specjalne rozwiązania
Inwestor
NCTIR / NZTA
Wykonawca
Ground Anchor Systems
Chroniony Objekt
Road, Railway
Klasa energetyczna
2000 kJ
Wysokość ochronna systemu
6.0 m
Dlugosc systemu od
56 m
Ochrona przeciwerozyjna
GEOBRUGG SUPERCOATING®, GEOBRUGG ULTRACOATING®
Inne zainstalowane aplikacje
Ochrona przed obrywami skalnymi
Sytuacja początkowa

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 meant frequent future rockfalls were expected. The rockfall frequency at NS13 created the requirement for a system that attenuated the rockfall energy to a manageable level with no maintenance and easy clearing. 

Opis zastosowanego rozwiazania

A 6 m RXE-2000 rockfall barrier was modified into a 56 m special attenuator. The attenuator consisted of a 12/3/350 ROCCO® ringnet in the impact zone (first 10 m) and a 7/3/350 ROCCO® tail (20 m). The lighter 7/3/350 ROCCO® tail was selected to enable the attenuated material to pass through into a catchment area at the toe of the slope for clearing/maintenance. The post spacing was between 8 m - 12 m depending on topography. TECCO® G65/3 was selected as the secondary mesh in the impact zone to ensure the smaller (less than 350 mm) high velocity rocks were also attenuated. GEOBRUGG SUPERCOATING® and GEOBRUGG ULTRACOATING® were selected due to the close proximity of the sea and Type III flex heads were required due to poor ground conditions.

Osoba kontaktowa na miejscu

Kevin H. Coyle
Kevin H. Coyle
Regional Manager Northeast
Zagrożeniami naturalnymi
Geobrugg North America, LLC
3 Beaudet Terr
Columbia CT 06237 / USA
Telefon +1 860 377 3230

Formularz kontaktowy

Saleh Feidi
Saleh Feidi
Regional Manager California
Zagrożeniami naturalnymi
Geobrugg North America, LLC
8921 Emperor Ave.
San Gabriel, California 91775 / USA
Telefon +1 909 706 8964

Formularz kontaktowy

John Kalejta
John Kalejta
Regional Manager Central US
Zagrożeniami naturalnymi
Geobrugg North America, LLC
3215 67th Avenue Pl
Greeley CO 80634 / USA
Telefon +1 505 220 1404

Formularz kontaktowy

Bob Lyne
Bob Lyne
Regional Manager Southeast
Zagrożeniami naturalnymi
Geobrugg North America, LLC
8004 Windspray Drive
Summerfield NC 27358 / USA
Telefon +1 336 337 0945

Formularz kontaktowy

Pierce Runnels, Civil Engineer
Pierce Runnels, Civil Engineer
General Manager Geobrugg North America
Zagrożeniami naturalnymi
Geobrugg North America, LLC
22 Centro Algodones
Telefon +1 505 771 4080
Telefon kom. +1 505 400 0796

Formularz kontaktowy

Tim Shevlin
Tim Shevlin
Sales Director
Zagrożeniami naturalnymi
Geobrugg North America, LLC
4676 Commercial St. SE, PMB 174
Salem OR 97302 / USA
Telefon +1 503 423 7258

Formularz kontaktowy