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Böschungsstabilisierung - Laúca Hydro Power Plant 2017

Overview project site: Visible are the 600 meters long rockfall barrier RXI-050 and the slopes above partially covered with TECCO® SYSTEM³

Böschungsstabilisierung - Laúca Hydro Power Plant 2017

Top of the slope having the form of a cliff consisting tower structures

Böschungsstabilisierung - Laúca Hydro Power Plant 2017

Complicated self-drilling nails INCO 32 TD type installation. All works required rope access

Böschungsstabilisierung - Laúca Hydro Power Plant 2017

TECCO³ SYSTEM³ during installation works: drilling rig at the nearly vertical rockface with spike plates not yet tightened

Böschungsstabilisierung - Laúca Hydro Power Plant 2017

Installation of TECCO® SYSTEM³ on top of the slope having the form of a cliff

Böschungsstabilisierung - Laúca Hydro Power Plant 2017

Top of the slope stabilization with high tensile mesh TECCO® G65/3 and self-drilling nails INCO 32 TD

Böschungsstabilisierung - Laúca Hydro Power Plant 2017

TECCO® SYSTEM³ during installation: visible unrolling of the high tensile TECCO® G65/3 mesh on the slope

Böschungsstabilisierung - Laúca Hydro Power Plant 2017

Overview of the Laúca Hydro Power Plant construction site from above the RXI-050 rockfall barrier line

Böschungsstabilisierung - Laúca Hydro Power Plant 2017

TECCO® SYSTEM³ during installation: visible scale of the project

Böschungsstabilisierung - Laúca Hydro Power Plant 2017

RXI-050 rockfall barrier during installation: slope above is already protected with TECCO® SYSTEM³

Böschungsstabilisierung - Laúca Hydro Power Plant 2017

ROCCO® high tensile net fastening being a part of the rockfall barrier RXI-050

Böschungsstabilisierung - Laúca Hydro Power Plant 2017

Fully installed RXI-050 rockfall barrier. Slope above and below the barrier line is stabilized with the TECCO® SYSTEM³

Böschungsstabilisierung - Laúca Hydro Power Plant 2017

Overview of the installation site: visible geomorphology of the whole slope

Böschungsstabilisierung - Laúca Hydro Power Plant 2017

Aerial view of the construction site with a perfect overview of the rockfall barrier RXI-050 lines

 
 

Installationsjahr

2017

Ausgangslage

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.

Geologie

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

Massnahme

The following solutions were used for slope protection:

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

  • 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® System 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

 

Kunde

Aproveitamento Hidroeléctrico de Laúca

Planer

Intertechne Consultores S.A.

Subunternehmer

Tecnasol Fundações E Geotecnia, S.A.

Geschützte Objekte

Strasse, Gebäude, Infrastruktur, Sonstige

Korrosionsschutz

GEOBRUGG SUPERCOATING

Ansprechpartner

Kevin Coyle
 

Kevin Coyle

Regional Manager Northeast

Naturgefahren
Uferschutz/Wasserbau
Geobrugg North America, LLC,3 Beaudet Terr,CT 06237 Columbia / USA Regional Manager Northeast

E-Mail

Saleh Feidi
 

Saleh Feidi

Naturgefahren
Uferschutz/Wasserbau
Geobrugg North America, LLC,8921 Emperor Ave.,91775 San Gabriel, California / USA

E-Mail

John Kalejta
 

John Kalejta

Naturgefahren
Uferschutz/Wasserbau
Geobrugg North America, LLC,KS 67226 Wichita / USA

E-Mail

Bob Lyne
 

Bob Lyne

Naturgefahren
Uferschutz/Wasserbau
Geobrugg North America, LLC,8004 Windspray Drive,NC 27358 Summerfield / USA

E-Mail

Pierce Runnels, Civil Engineer
   

Pierce Runnels

General Manager Geobrugg North America

Naturgefahren
Geobrugg North America, LLC,22 Centro Algodones,NM 87001 Algodones / USA , Civil Engineer General Manager Geobrugg North America

E-Mail

Tim Shevlin
 

Tim Shevlin

Naturgefahren
Geobrugg North America, LLC,OR 97302 Salem / USA

E-Mail