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A company of the BRUGG Group
United States
Olt Valley, km 239+500 - 246+500 2015 - Geobrugg Olt Valley, km 239+500 - 246+500 2015 - Geobrugg
Olt Valley, km 239+500 - 246+500 2015 - Geobrugg Olt Valley, km 239+500 - 246+500 2015 - Geobrugg
Olt Valley, km 239+500 - 246+500 2015 - Geobrugg Olt Valley, km 239+500 - 246+500 2015 - Geobrugg
Olt Valley, km 239+500 - 246+500 2015 - Geobrugg Olt Valley, km 239+500 - 246+500 2015 - Geobrugg
Olt Valley, km 239+500 - 246+500 2015 - Geobrugg Olt Valley, km 239+500 - 246+500 2015 - Geobrugg
Olt Valley, km 239+500 - 246+500 2015 - Geobrugg Olt Valley, km 239+500 - 246+500 2015 - Geobrugg
Olt Valley, km 239+500 - 246+500 2015 - Geobrugg Olt Valley, km 239+500 - 246+500 2015 - Geobrugg
Olt Valley, km 239+500 - 246+500 2015 - Geobrugg Olt Valley, km 239+500 - 246+500 2015 - Geobrugg
Olt Valley, km 239+500 - 246+500 2015 - Geobrugg Olt Valley, km 239+500 - 246+500 2015 - Geobrugg

Olt Valley, km 239+500 - 246+500

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Street
National Road no. 7 - DN7
ZIP code
245601
Place
DN7
Country/Region
Romania
Year of installation
2015
Customer
Compania Naţională de Administrare a Infrastructurii Rutiere (C.N.A.I.R.) – Directia Regionala de Drumuri si Poduri Craiova (D.R.D.P.)
Engineering
S.C. IRIMAT Cons S.R.L. - Bucharest
Contractor
S.C. VECTRA SERVICE S.R.L.
Subcontractor
Sächsische Bau GmbH Dresden Germany, Sibiu Branch
Protected object
Road
Systems
TECCO® G65/3, SPIDER® S3-130
Corrosion protection
GEOBRUGG SUPERCOATING®
Stabilized area
4700 m²
Maximum slope height
38 m
Slope inclination
48 ° - 87 °
Protection measure
Active slope stabilization
Exposition
North-East
Other installed applications
Rockfall Protection, Debris Flow & Shallow Landslide Protection
Geology

Along the whole section, mica and para gneiss appear in outcrops belonging to the series of the tail (the upper Proterozoic ante) and the local packet sandstone, covered at the top by diluvium deposit (dust, sand and gravel powder blocks).


Slopes (for the most part covered with forest) show inclinations of up to 60 - 80° and are strongly tectonized (kneading such, micro cracks) and continuous processes of disintegration. The angle of the rock packages varies between 30 - 55° (lower to higher sandstone and mica).

Situation

National road no. 7 (DN7) is one of the most important routes through the Carpathian Mountains, with heavy traffic. The Olt River runs parallel to the DN7 with high mountains, directly next to the road. In winter and spring rockfalls occur regularly. Also with unstable slopes, torrents and avalanches the risk of accidents was high. 

This project was originally developed with five concrete canopies for rockfall protection. Due to costs and other restrictions, a modern solution using high tensile steel wire was chosen. After further investigation, 23 dangerous areas were found and had to be protected using two types of protection systems: active and passive.

Description

4200 m² of TECCO® SYSTEM³ and 560 m² of SPIDER® System were installed together with nailing as an active protection measure on the following sectors:

1. km 240+421 - 240+441

TECCO® G65/3

  • stabilized area: 260 m²
  • slope height: 15 m
  • nail pattern: 2.20 x 2.20 m
  • nail type: GEWI 28
  • nail length: 3 m

2. km 240+441 - 240+467

SPIDER® S3-130

  • stabilized area: 540 m²
  • slope height: 18 m
  • nail distance: 2.50 m
  • nail type: GEWI 32
  • nail length: 3 m

3. km 240+510 - 240+555

TECCO® G65/3

  • stabilized area: 585 m²
  • slope height: 13 m
  • nail pattern: 2.50 x 2.50 m
  • nail type: GEWI 32
  • nail length: 3 m

4. km 242+457 - 240+610

TECCO® G65/3

  • stabilized area: 1377 m²
  • slope height: 10 m
  • nail pattern: 2.10 x 2.10 m
  • nail type: GEWI 32
  • nail length: 3 m

5. km 242+859 - 242+940

TECCO® G65/3

  • stabilized area: 640 m²
  • slope height: 13 m
  • nail pattern: 2.20 x 2.20 m
  • nail type: GEWI 32
  • nail length: 3 m

6. km 243+099 - 243+179

TECCO® G65/3

  • stabilized area: 1260 m²
  • slope height: 14 m
  • nail pattern: 2.20 x 2.20 m
  • nail type: GEWI 32
  • nail length: 3 m

See also the other projects of Olt Valley.

Your local contact

Head office and production
Head office and production
 
Natural Hazards
Geobrugg North America, LLC
22 Centro Algodones
Algodones NM 87001 / USA
Phone +1 505 771 4080
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Kevin H. Coyle
Kevin H. Coyle
Regional Manager Northeast
Natural Hazards
Geobrugg North America, LLC
3 Beaudet Terr
Columbia CT 06237 / USA
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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
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John Kalejta
John Kalejta
Regional Manager Central US
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Geobrugg North America, LLC
3215 67th Avenue Pl
Greeley CO 80634 / USA
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Bob Lyne
Bob Lyne
Regional Manager Southeast
Natural Hazards
Geobrugg North America, LLC
8004 Windspray Drive
Summerfield NC 27358 / USA
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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
Algodones NM 87001 / USA
Phone +1 505 771 4080
Mobile +1 505 400 0796

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

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