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

Селевые потоки и микросели - Kaikoura State Highway (SR27)   Coastal Pacific Rail (NS15) 2019

NS15: Looking North SH1 - 126 m SL-150 with transmission rope protecting the road and rail corridor

Селевые потоки и микросели - Kaikoura State Highway (SR27)   Coastal Pacific Rail (NS15) 2019

NS15: Looking South SH1 - 126 m SL-150 with transmission rope protecting the road and rail corridor

Селевые потоки и микросели - Kaikoura State Highway (SR27)   Coastal Pacific Rail (NS15) 2019

SR27: Looking North SH1 - SL-150 with transmission rope protecting the road and rail corridor

Селевые потоки и микросели - Kaikoura State Highway (SR27)   Coastal Pacific Rail (NS15) 2019

SR27: Looking South SH1 - SL-150 with transmission rope protecting the road and rail corridor

Селевые потоки и микросели - Kaikoura State Highway (SR27)   Coastal Pacific Rail (NS15) 2019

Note the Barrier is built on top of a culvert to contain the debris material in the event of overtopping

Селевые потоки и микросели - Kaikoura State Highway (SR27)   Coastal Pacific Rail (NS15) 2019

Slip 8, looking West and North SH1 - SL-150 protecting the road rail corridor

 

Системы

 

Длина системы

24 m - 126 m

 

Год установки

2019

Ситуация

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.

Описание

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.

Страна / Регион

Новая Зеландия

Клиент

NCTIR / NZTA / KiwiRail

Подрядчик

Geovert, SRG, HGS, Ground Anchor Systems and Geotech

Защищаемый объект

Дорога, Железнодорожная линия

Защита от коррозии

GEOBRUGG ULTRACOATING

Представитель в Вашем регионе

Kevin Coyle
 

Kevin Coyle

Regional Manager Northeast

Инженерная защита
Гидротехника
Geobrugg North America, LLC,3 Beaudet Terr,CT 06237 Columbia / США Regional Manager Northeast

Электронная почта

Saleh Feidi
 

Saleh Feidi

Инженерная защита
Гидротехника
Geobrugg North America, LLC,8921 Emperor Ave.,91775 San Gabriel, California / США

Электронная почта

John Kalejta
 

John Kalejta

Инженерная защита
Гидротехника
Geobrugg North America, LLC,KS 67226 Wichita / США

Электронная почта

Bob Lyne
 

Bob Lyne

Инженерная защита
Гидротехника
Geobrugg North America, LLC,8004 Windspray Drive,NC 27358 Summerfield / США

Электронная почта

Pierce Runnels, Civil Engineer
   

Pierce Runnels

General Manager Geobrugg North America

Инженерная защита
Geobrugg North America, LLC,22 Centro Algodones , Civil Engineer General Manager Geobrugg North America

Электронная почта

Tim Shevlin
 

Tim Shevlin

Инженерная защита
Geobrugg North America, LLC,OR 97302 Salem / США

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