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Горнодобывающая промышленность / Туннели - City of Atlanta Water Supply 2016

Northerly view of quarry slope to be protected - visible preparations for TBM deployment. Photo thanks to courtesy of Scarptec Inc.

Горнодобывающая промышленность / Туннели - City of Atlanta Water Supply 2016

Installation of high tensile steel TECCO® G65/3 drape. Photo thanks to courtesy of Scarptec Inc.

Горнодобывающая промышленность / Туннели - City of Atlanta Water Supply 2016

Another perspective of drape system being installed. Note painted drilling point for rock bolts used to secure larger boulder. Photo thanks to courtesy of Scarptec Inc.

Горнодобывающая промышленность / Туннели - City of Atlanta Water Supply 2016

View of GBE-1000A rockfall barrier line serving as rockfall canopy directly above TBM entry portal. TECCO® drape secured locally to capture rocks. Photo thanks to courtesy of Scarptec Inc.

Горнодобывающая промышленность / Туннели - City of Atlanta Water Supply 2016

View from below of the GBE-1000A rockfall barrier with hinged posts allowing easy slope morphology adjustments. Photo thanks to courtesy of Scarptec Inc.

 

Год установки

2016

Ситуация

Bellwood Quarry outside of Atlanta (GA) will now be used for City of Atlanta water supply. In preparation to house the water supply and construct the distribution tunnel system a temporary and permanent system needed to be designed to protect workers, equipment and infrastructure from rocks falling off the 315 ft high and 365 ft long north facing slope. An additional temporary solution also needed to be implemented to protect workers and equipment at the tunnel portal.

Описание

The solution was a 114 000 ft² TECCO® G65/3 drape system and two GBE-1000A rockfall barriers forming canopies. The challenge was to provide a feasible and cost effective solution that could be strong enough to contain rocks 2.5 ft in diameter falling from 285 ft. The system had to be strong yet light weight enough for effective installation. The GBE-1000A systems were bolted to the rockface with the TECCO® G65/3 drape tied locally to ensure capture of the rock. Larger boulders were secured with rock bolts to reduce system requirements. The drape will be left after the site is filled to contain underwater rockfall. The canopies will be removed. 

Learn more about the project: 
City of Atlanta Department of Watershed management (YouTube)

Клиент

City of Atlanta

Подрядчик

Guy F. Atkinson Construction LLC

Защищаемый объект

Kарьер / Шахта, Инфраструктура

Защита от коррозии

Оцинковка, GEOBRUGG SUPERCOATING

Проектировщик

Scarptec Inc.

Dahil olan diğer şirketler

Apex Rockfall, LLC

Другие конструкции

Камнепады, обвалы, осыпи, Горнодобывающая промышленность / Туннели

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Bob Lyne

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Pierce Runnels, Civil Engineer
   

Pierce Runnels

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

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Tim Shevlin
 

Tim Shevlin

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