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Камнепады, обвалы, осыпи - Kaikōura SH1 - SR8 and 9 2021

ATT looking north side protecting the road

Камнепады, обвалы, осыпи - Kaikōura SH1 - SR8 and 9 2021

ATT 60 drops stones to the ground in a controlled manner

Камнепады, обвалы, осыпи - Kaikōura SH1 - SR8 and 9 2021

Top view from the barrier

Камнепады, обвалы, осыпи - Kaikōura SH1 - SR8 and 9 2021

ATT 60 looking south onto the sea

 

Системы

 

Длина системы

110 m

 

Год установки

2021

Ситуация

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 wide run out area at SR8 and 9 created the requirement for a system that attenuated the rockfall energy to a manageable level, was quick to install and required minimal future maintenance. The Slope on average is approximately 50 degrees but in some parts is near vertical.

Описание

A 110 m wide rockfall attanuator (ATT - 60) with a 35-40 m tail was specified due to its high puncturing resistant yet light weight high tensile (1770 MPa) TECCO 65/4 tail which enables the attenuated material to pass down through to the lower section for clearing if required. The 65 mm aperture is small enough that no secondary mesh is required and the Ultracoating ensures design life in the coastal environment. The attenuator system utilises a 3 m high hinged post with a 16 m spacing and a support rope separation half way.  A double top rope was installed for increased safety in design and Type III flex heads were installed to transfer the load to the Gewi 32 anchor bar. Overall the benefits of an attenuator creating a quick and cost effective solution.

Клиент

Подрядчик

Защищаемый объект

Дорога

Защита от коррозии

GEOBRUGG ULTRACOATING

Представитель в Вашем регионе

Kevin H. Coyle
 

Kevin H. Coyle

Regional Manager Northeast

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

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Saleh Feidi
 

Saleh Feidi

Regional Manager California

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

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John Kalejta
 

John Kalejta

Regional Manager Central US

Инженерная защита
Гидротехника
Geobrugg North America, LLC,3215 67th Avenue Pl,Greeley CO 80634 / США Regional Manager Central US

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Bob Lyne
 

Bob Lyne

Regional Manager Southeast

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

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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

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Tim Shevlin
 

Tim Shevlin

Sales Director

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

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