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Arlberg Mountain Pass - road connection Rauz-Stuben

Stabilizacja skarp - Arlberg Mountain Pass - road connection Rauz-Stuben 2015

View of Stuben am Arlberg toward the Rauz junction. The new 1.3 km route with 5 bend is visible. To secure the road cut, the experts placed their trust in the TECCO® SYSTEM³

Stabilizacja skarp - Arlberg Mountain Pass - road connection Rauz-Stuben 2015

A project on a large scale – completed on schedule thanks to the efforts of all those involved and which is also an attractive solution befitting to the Alpine scenery surrounding it

Stabilizacja skarp - Arlberg Mountain Pass - road connection Rauz-Stuben 2015

A bend under construction: two temporary GBE-500A rockfall barriers with a height of 3.5 m securely catch rocks carried away and left loose following blasting and chiseling work before they reach the lower levels of the "old" Arlbergpassstrasse

Stabilizacja skarp - Arlberg Mountain Pass - road connection Rauz-Stuben 2015

One of the new rock cuts stabilized with TECCO® SYSTEM³ - visible nails offset and minimal visual impact

Stabilizacja skarp - Arlberg Mountain Pass - road connection Rauz-Stuben 2015

The bottom border of the TECCO® G65/3 high tensile mesh has been strengthened with a 12 mm border rope guided along the surface above the nail and under the system spike plate P33/40. Every second mesh opening is connected to the border rope with a T2 press claw

Stabilizacja skarp - Arlberg Mountain Pass - road connection Rauz-Stuben 2015

TECCO® G65/3 high tensile mesh perfectly adapts to the terrain morphology. By placing the spike plate in a lowest points of the surface, certain pretensioning can be applied, minimizing further facing deformations

Stabilizacja skarp - Arlberg Mountain Pass - road connection Rauz-Stuben 2015

TECCO® SYSTEM³ knotted meshes edges are connected edge to edge without any overlap using T3 clips and without the need for tools. In comparison to conventional solutions where the mesh wires at the edge are only bent, this design enables up to 30 % less mesh to be used

Stabilizacja skarp - Arlberg Mountain Pass - road connection Rauz-Stuben 2015

It is important that the spike plate's longitudinal axis is horizontally aligned. This is the only way to ensure that the full load can be transmitted from the TECCO® G65/3 mesh to the nail via the system spike plate. If correctly installed, spike plate covers over 16 wires of the mesh, giving the facing very high puncturing restistance

Stabilizacja skarp - Arlberg Mountain Pass - road connection Rauz-Stuben 2015

Slopes with inclination bigger than 80° are successfully protected against erosion with the TECMAT® erosion control mat beneath the TECCO® SYSTEM. This solution allows vegetation to grow here.

Stabilizacja skarp - Arlberg Mountain Pass - road connection Rauz-Stuben 2015

Even on very uneven and rough surfaces, TECCO® SYSTEM³ is easy to install. The nails were positioned here so that the spike plate can optimally tension the TECCO® G65/3 mesh

Stabilizacja skarp - Arlberg Mountain Pass - road connection Rauz-Stuben 2015

Areas secured with TECMAT® (three-dimensional anti-erosion mat made from PP monofilaments) and TECCO® G65/3 mesh in October 2015, saw its first green shoots emerge at the beginning of May 2016. Construction site is 1500 m above sea level and has south-west exposition

Stabilizacja skarp - Arlberg Mountain Pass - road connection Rauz-Stuben 2015

New slopes surfaces are strongly fissured and crushed. In some areas additional snow protection solutions were installed. Here overview of a fully installed TECCO® SYSTEM³

 

Zastosowane systemy

 

Rok Instalacji / Montazu

2015

Sytuacja początkowa

The Arlbergpassstrasse L197 road connects regions of Tirol and Vorarlberg. At the Rauz junction, the road becomes Lechtalstrasse L198. In winter it provides the only safe connection to the popular winter sports destinations of Lech and Zürs. The management of the Arlbergsstrasse, geographically situated in the right hillside of the Rauzbach river, had until now been subject to constant, extreme rockfalls, rockslides, and slope instabilities.

Geologia

Shell limestone and Arlberg formation.

Opis zastosowanego rozwiazania

In 2011, a feasibility study was conducted into rerouting the road. In 2014, the Austrian state of Voralberg began the construction of five hairpin bends with a length of 1.3 km and at a cost of around 9 000 000 EUR. The new route loosely follows a rough historic path.

Due to the high slope gradient, the serpentine roadways can only be guided with the appropriate support structures and by following gaps in the terrain. The removal of rocks from around 65 000 m³ of the alpine Muschelkalk (shell limestone) and Arlberg rock formations was mainly carried out using explosives.

The Nüziders subsidiary of civil engineering company HTB installed around 140 m of temporary GBE-500 rockfall protection barriers with an overall height of 3.5 m to enable safe construction and traffic flow. The permanent, active securing, of the newly formed tracks through the terrain using 11 445 m² of TECCO® System as well as measures to protect against erosion and snow slides using around 1680 m² of TECMAT® were also taken care of by HTB.

In October 2015, the new 1.3 km route was approved – on schedule and in accordance with the latest road safety regulations.

Inwestor

Amt der Vorarlberger Landesregierung

Wykonawca

HTB Baugesellschaft mbH

Chroniony Objekt

Road

Ochrona przeciwerozyjna

GEOBRUGG SUPERCOATING

Projektant

GEOGNOS Bertle Technische Geologie Ziviltechniker GmbH

Inne zainstalowane aplikacje

Ochrona przed obrywami skalnymi

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