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Kaikoura State Highway (SR27) / Coastal Pacific Rail (NS15)

Kaikoura, South Island, New Zealand, 7300, Kaikoura, Neuseeland
2019
Kunde
NCTIR / NZTA / KiwiRail
Ausführende Firma
Geovert, SRG, HGS, Ground Anchor Systems and Geotech
Geschützte Objekte
Strasse, Eisenbahn
Systemhöhe
3.5 m
Systemlänge
24 m - 126 m
Korrosionsschutz
GEOBRUGG ULTRACOATING®
Anzahl Barrieren
6
Rückhaltevermögen
From the smallest to largest barrier 250 - 1'350 m³
Ausgangslage

The Kaikoura M7.8 Earthquake caused widespread damage to the road and rail corridor 20 km North and South of the Kaikoura township. Initially, more than 40 major slips inundated the road and rail with >750,000 m³ of material from source zones up to 500 metres above sea level. The loosened highly fractured Grey Wacke has caused subsequent frequent rockfalls, shallow landslides and debris loads.

The increased hazard associated with the frequent failures created a requirement to install shallow landslide barriers on several open slope locations to be able to maintain the SH1 road and Railway below. The major design constraint for the sites was minimising the deflection of the barrier in both rockfall and debris load events.

Massnahme

The 3.5m high SL-150 barrier was selected due to its 150kN/m² load capacity with low defection (<2.2 metres in a debris load event) and due to it being the only tested and certified landslide barrier. To lower the deflection further for the maximum energy level (MEL) rockfall event, a custom transmission rope was designed and installed. The lower deflection was required due to the barriers close proximity to the railway.

To date, six SL-150s ranging from 24 metres to 126 metres long have been installed in the Kaikoura region with three of them having an additional transmission rope.

Ansprechpartner

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

Kontaktformular

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

Kontaktformular

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

Kontaktformular

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

Kontaktformular

Pierce Runnels, Civil Engineer
Pierce Runnels, Civil Engineer
General Manager Geobrugg North America
Naturgefahren
Geobrugg North America, LLC
22 Centro Algodones
NM 87001 Algodones / USA
Telefon +1 505 771 4080
Mobil +1 505 400 0796

Kontaktformular

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

Kontaktformular