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United States
Laúca Hydro Power Plant 2017 - Geobrugg Laúca Hydro Power Plant 2017 - Geobrugg
Laúca Hydro Power Plant 2017 - Geobrugg Laúca Hydro Power Plant 2017 - Geobrugg
Laúca Hydro Power Plant 2017 - Geobrugg Laúca Hydro Power Plant 2017 - Geobrugg
Laúca Hydro Power Plant 2017 - Geobrugg Laúca Hydro Power Plant 2017 - Geobrugg
Laúca Hydro Power Plant 2017 - Geobrugg Laúca Hydro Power Plant 2017 - Geobrugg
Laúca Hydro Power Plant 2017 - Geobrugg Laúca Hydro Power Plant 2017 - Geobrugg
Laúca Hydro Power Plant 2017 - Geobrugg Laúca Hydro Power Plant 2017 - Geobrugg
Laúca Hydro Power Plant 2017 - Geobrugg Laúca Hydro Power Plant 2017 - Geobrugg
Laúca Hydro Power Plant 2017 - Geobrugg Laúca Hydro Power Plant 2017 - Geobrugg
Laúca Hydro Power Plant 2017 - Geobrugg Laúca Hydro Power Plant 2017 - Geobrugg
Laúca Hydro Power Plant 2017 - Geobrugg Laúca Hydro Power Plant 2017 - Geobrugg
Laúca Hydro Power Plant 2017 - Geobrugg Laúca Hydro Power Plant 2017 - Geobrugg
Laúca Hydro Power Plant 2017 - Geobrugg Laúca Hydro Power Plant 2017 - Geobrugg
Laúca Hydro Power Plant 2017 - Geobrugg Laúca Hydro Power Plant 2017 - Geobrugg

Laúca Hydro Power Plant

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Place
Laúca
Country/Region
Angola
Year of installation
2017
Customer
Aproveitamento Hidroeléctrico de Laúca
Engineering
Intertechne Consultores S.A.
Other participating companies
Tecnasol Fundações E Geotecnia, S.A.
Protected object
Road, Building, Infrastructure, Other
Systems
TECCO® G65/3, RXI-050
Corrosion protection
GEOBRUGG SUPERCOATING®
Stabilized area
98490 m²
Maximum slope height
120 m
Slope inclination
40 ° - 90 °
Protection measure
Active slope stabilization
Exposition
North-East
Other installed applications
Rockfall Protection
Geology

Project site consists of the following types of rock:

  • colluvium
  • silicified sandstone
  • porous sandstone
  • sandstone-siltstone transition
  • siltstone
  • gneiss from moderately fractured to strongly altered

Situation

The Lauca Hydro Power Plant is located at the foot of a steep slope.  The slope requires stabilization to avoid causing damage to the facilities and equipment.

Description

The following solutions were used for slope protection:

Top of the cliffs and tower shaped structures partially protected with TECCO® SYSTEM3:

  • high tensile mesh: TECCO® G65/3
  • self-drilling nails: INCO 32 TD
  • nail diameter: 32 mm
  • nail length: 4.0 m
  • nail pattern: 1.4 x 1.4 m

Tower shaped structures partially protected with TECCO® SYSTEM3 and SPIDER® System:

  • high tensile mesh: TECCO® G65/3
  • high tensile net SPIDER S4-230
  • tower structure width below 3.0 m: nail pattern 1.4 x 1.4 m
  • tower structure width over 3.0 m: nail pattern 3.0 x 1.4 m

At the base of the tower structures:

  • high tensile mesh: TECCO® G65/3
  • self-drilling nails: INCO 32 TD
  • nail diameter: 32 mm
  • nail length: 4.0 m
  • nail pattern: 5.0 x 5.0 m

Regular area of the slope, between rockfall barrier line and top of the cliffs:

  • high tensile mesh: TECCO® G65/3
  • self-drilling nails: INCO 32 TD
  • nail diameter: 32 mm
  • nail length: 4.0 m
  • nail pattern: 5.0 x 5.0 m

Below the rockfall barrier, ca. 10 m high zone directly above slope cut:

  • high tensile mesh: TECCO® G65/3
  • self-drilling nails: INCO 32 TD
  • nail diameter: 32 mm
  • nail length: 8.0 m
  • nail pattern: 2.0 x 2.0 m

Self drilling nails were used due to  fractured condition of the  rock slope.

Passive rockfall protection barrier:

  • rockfall protection barrier RXI-050
  • height: 4 m
  • length: 600 m in 3 sections of: 180 m / 240 m / 180 m

 

Your local contact

Head office and production
Head office and production
 
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Geobrugg North America, LLC
22 Centro Algodones
Algodones NM 87001 / USA
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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
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John Kalejta
John Kalejta
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Geobrugg North America, LLC
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Greeley CO 80634 / USA
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Bob Lyne
Regional Manager Southeast
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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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