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Karaj Hafez Square 2017 - Geobrugg Karaj Hafez Square 2017 - Geobrugg
Karaj Hafez Square 2017 - Geobrugg Karaj Hafez Square 2017 - Geobrugg
Karaj Hafez Square 2017 - Geobrugg Karaj Hafez Square 2017 - Geobrugg
Karaj Hafez Square 2017 - Geobrugg Karaj Hafez Square 2017 - Geobrugg
Karaj Hafez Square 2017 - Geobrugg Karaj Hafez Square 2017 - Geobrugg
Karaj Hafez Square 2017 - Geobrugg Karaj Hafez Square 2017 - Geobrugg
Karaj Hafez Square 2017 - Geobrugg Karaj Hafez Square 2017 - Geobrugg
Karaj Hafez Square 2017 - Geobrugg Karaj Hafez Square 2017 - Geobrugg
Karaj Hafez Square 2017 - Geobrugg Karaj Hafez Square 2017 - Geobrugg
Karaj Hafez Square 2017 - Geobrugg Karaj Hafez Square 2017 - Geobrugg
Karaj Hafez Square 2017 - Geobrugg Karaj Hafez Square 2017 - Geobrugg
Karaj Hafez Square 2017 - Geobrugg Karaj Hafez Square 2017 - Geobrugg
Karaj Hafez Square 2017 - Geobrugg Karaj Hafez Square 2017 - Geobrugg
Karaj Hafez Square 2017 - Geobrugg Karaj Hafez Square 2017 - Geobrugg
Karaj Hafez Square 2017 - Geobrugg Karaj Hafez Square 2017 - Geobrugg
Karaj Hafez Square 2017 - Geobrugg Karaj Hafez Square 2017 - Geobrugg

Karaj Hafez Square

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Place
Karaj Hafez Square
Country/Region
Iran
Year of installation
2017
Customer
Karaj Municipality
Engineering
Rahab Consulting Engineers
Contractor
Geotech Company
Protected object
Road
Systems
GBE-2000A
Energy absorption capacity
2000 kJ
System height
5.0 m
System length
200 m - 220 m
Corrosion protection
GEOBRUGG SUPERCOATING®
Initial situation

Karaj, a growing city, has roots in Alborz mountains and therefore is faced with challenges such as rockfall which are not typical for cities in Iran. Hafez Square which is a corridor to the city as well as to a major transit road to North of Iran (Chalous Road) is located in the mountain area. As a corridor, it is a major stop to public transportation and private cars. Many tourists also start their travel plans to the Caspian sea from this square. Over the years, weathering of the rocks in the mountain have been rising and consequently, rockfalls have happened on the road. Due to cars and buses stopping in this major square, there have been incidents of rockfall damaging properties and unfortunately, in some cases, fatalities have occurred. The Karaj municipality had to find a solution in order to stop the events from happening. The consultant got involved and performed geotechnical studies as well as rockfall simulations in order to find an optimal solution.

Description

The consultant got involved with the project and asked Geotech to provide its expertise for this phase. Based on prior rockfall incidents, the current topography of the slope, and scanning of boulders in different areas, design boulder was chosen. The rough area to be protected was 700 meters and after final analysis, it was divided into three barrier lines totaling 640 meters. An energy classification of 2000 kJ and a barrier height of 5 meters were selected. Thie installation was performed in two phases - in a total time of 9 months for the entire area. Grouting of the anchors was a challenge due to the cold weather conditions in the winter time but with proper planning, the entire project was finished ahead of schedule.

Your local contact

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

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

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

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Bob Lyne
Bob Lyne
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Natural Hazards
Geobrugg North America, LLC
8004 Windspray Drive
Summerfield NC 27358 / USA
Phone +1 336 337 0945

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Pierce Runnels, Civil Engineer
Pierce Runnels, Civil Engineer
General Manager Geobrugg North America
Natural Hazards
Geobrugg North America, LLC
22 Centro Algodones
Phone +1 505 771 4080
Mobile +1 505 400 0796

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

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