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Ochrona przed obrywami skalnymi - Kelowna 2017

Rolled out TECCO® mesh dangling from a spreader bar. This is the rockfall receiving area of the attenuator.

Ochrona przed obrywami skalnymi - Kelowna 2017

Installation works along the road

Ochrona przed obrywami skalnymi - Kelowna 2017

Installation, workers operated from a man-lift situated on the road

Ochrona przed obrywami skalnymi - Kelowna 2017

Today, the attenuator is protecting the highway

Ochrona przed obrywami skalnymi - Kelowna 2017

Completed system with 3 meters high posts

 

Zastosowane systemy

 

Dlugosc systemu od

15 m - 20 m

 

Rok Instalacji / Montazu

2017

Sytuacja początkowa

British Columbia Ministry of Transportation and Infrastructure (BCMoTi) is improving the West Side Road in stages since 2014. For a certain section along the road an attenuator was favored instead of draped mesh.

Rockfall impact attenuators intercept the trajectory, reduce potential bounce height, and dampen the rockfall velocity, therefore, attenuate the total kinetic energy of rockfall.

A controlled guiding of the rock(s) to a designated collecting area limits costly clean-outs in difficult terrain. This type of easy to install, low maintenance, passive rockfall mitigation system is increasing in popularity worldwide.

Opis zastosowanego rozwiazania

Geobrugg North America, LLC offered a proprietary attenuator system that fulfilled the BCMoTi's requirements. Ecora Engineering and Resource Group Ltd. was retained to be the Engineer of Record (EoR) specifically for the attenuator installation. Ecora confirmed the system location, dimensioned the system anchors, assured quality control of the installation and also submitted the record drawings. Geobrugg supplied a qualified, experienced representative to advise the contractor on installation procedures. Little Rock Drilling and Blasting Ltd. were contracted to perform the installation work.

The attenuator was installed on a rock-cut approximately 20 m above the West Side Road.  Above the attenuator system, 30 m to 60 m of natural rock bluff represent a significant source of rockfall. By installing the attenuator close to the road, several advantages are highlighted: a large amount of mesh is saved when not draping the whole slope but allowing for some rockfall to be intercepted by the attenuator and then guided to the ground; furthermore, the attenuator could be located within the BCMoTi right-of-way, eliminating the need to access and construct on private land; finally maintenance is kept at a minimum thanks to the road's proximity.

It is easy to install with one single mesh type. No need to mix or layer meshes which takes time, waists material and increases exposure to workers. The mesh is simply attached to support rope with a Helix Coil or seaming rope.

Inwestor

British Columbia Ministry of Transportation and Infrastructure

Projektant

Ecora Engineering and Resource Group Ltd.

Inne przedsiębiorstwa

Western Geohazard Solutions Inc.

Chroniony Objekt

Road, Infrastructure

Ochrona przeciwerozyjna

GEOBRUGG SUPERCOATING

Osoba kontaktowa na miejscu

Kevin H. Coyle
 

Kevin H. Coyle

Regional Manager Northeast

Zagrożeniami naturalnymi
Nżynieria hydrauliczna
Geobrugg North America, LLC,3 Beaudet Terr,Columbia CT 06237 / USA Regional Manager Northeast

Formularz kontaktowy

Saleh Feidi
 

Saleh Feidi

Regional Manager California

Zagrożeniami naturalnymi
Nżynieria hydrauliczna
Geobrugg North America, LLC,8921 Emperor Ave.,San Gabriel, California 91775 / USA Regional Manager California

Formularz kontaktowy

John Kalejta
 

John Kalejta

Regional Manager Central US

Zagrożeniami naturalnymi
Nżynieria hydrauliczna
Geobrugg North America, LLC,3215 67th Avenue Pl,Greeley CO 80634 / USA Regional Manager Central US

Formularz kontaktowy

Bob Lyne
 

Bob Lyne

Regional Manager Southeast

Zagrożeniami naturalnymi
Nżynieria hydrauliczna
Geobrugg North America, LLC,8004 Windspray Drive,Summerfield NC 27358 / USA Regional Manager Southeast

Formularz kontaktowy

Pierce Runnels, Civil Engineer
   

Pierce Runnels

General Manager Geobrugg North America

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

Formularz kontaktowy

Tim Shevlin
 

Tim Shevlin

Sales Director

Zagrożeniami naturalnymi
Geobrugg North America, LLC,Salem OR 97302 / USA Sales Director

Formularz kontaktowy