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Protezione da caduta massi - Schnepfau in Bregenzerwald 2013

The barrier protects the municipality of Schnepfau in the Bregenz Forest of Western Austria from falling rocks and trees.

Protezione da caduta massi - Schnepfau in Bregenzerwald 2013

Positioned RXE support with tensioned support ropes, U-ropes, and transmission ropes. The next assembly step involves opening the nets. Support rope and U-rope are guided by rollers through corresponding color-coded rings, making them easy to connect.

Protezione da caduta massi - Schnepfau in Bregenzerwald 2013

The next assembly step involves opening the nets. Support rope and U-rope are guided by rollers through corresponding color-coded rings, making them easy to connect.

Protezione da caduta massi - Schnepfau in Bregenzerwald 2013

An ATV camera crew follows the world's first installation of the new RXE system.

Protezione da caduta massi - Schnepfau in Bregenzerwald 2013

Positioned RXE support with tensioned support ropes, U-ropes, and transmission ropes. The next assembly step involves opening the nets.

Protezione da caduta massi - Schnepfau in Bregenzerwald 2013

The first 60 meters up to the support with the carrier separation were fully installed in just three days and equipped with a 50/50/2.4 mm chain-link mesh to intercept even the smallest falling debris.

Protezione da caduta massi - Schnepfau in Bregenzerwald 2013

Supporting ground plate with tension and compression anchor. Operating on rollers, support ropes are guided carefully and without friction.

Protezione da caduta massi - Schnepfau in Bregenzerwald 2013

Schnepfau is protected with a 120-meter-long RXE-1000 barrier in addition to a 510-meter-long RXI-100 barrier.

Protezione da caduta massi - Schnepfau in Bregenzerwald 2013

Fork in the road: The safety cable was routed with an additional support so that the required, free clearance height remained unchanged

Protezione da caduta massi - Schnepfau in Bregenzerwald 2013

The RXE-1000 system (left) can be directly connected to the previous RXI-100 system with ease.

Protezione da caduta massi - Schnepfau in Bregenzerwald 2013

Completed RXE-1000 construction with an overall height of 4 meters.

 

Sistemi

 

Lunghezza del sistema

120 m - 120 m

 

Anno di installazione

2013

Situazione iniziale

The village of Schnepfau is located below a woodland area. Time and again, the village plays witness to dangerous situations due to falling rocks and trees. In 2004, the municipality of Schnepfau filed a motion to install a protective structure above the settlement area and country road L28. 

Most endangered were the homes and L28 Schnepfegg Straße road located directly beneath the mountainside. Causes included rockfall from the upper slope area and by loose boulders lying around in the woods, each with a volume of several cubic meters.

Slight tremors can cause loose boulders to roll downhill. For example, tremors produced by common forestry work present high risks for the area lower down. Infrastructure, facilities, and cars were repeatedly damaged. In the fall of 2006, rocks broke loose in the western part of the project.

For construction projects below the project area, official geological experts continually emphasized that the objects are exposed to considerable rockfall danger (excerpt from the technical report of WLV Bregenz).

Descrizione

The district geologist decided to install a rockfall barrier of energy class of 1000 kJoule and a fence height of 4 meters.  Geobrugg delivered the very first RXE barrier ever installed on a construction site.  In addition, a new forest road was built.   Additional advantages of that new access lead to the possibility of easily installing posts with preassembled net panels by truck with crane.

On the other hand, due to unconsolidated ground conditions, Geobrugg was forced to make some concrete foundations in combination with stabilizing tubes because the base-plates had to be located on the downhill side of the road.  This was to guarantee the maximum passage height, so that the road could be traveled by tractor.  Retaining ropes with lengths up to 20 meters long we also chosen.

Cliente

Municipality of Schnepfau

Oggetto protetto

Strada, Costruzione, Infrastrutture turistiche, Zona residenziale, Infrastrutture

Protezione dalla corrosione

Galvanized, GEOBRUGG SUPERCOATING

Progettazione:

Regional Construction „Austrian service for torrent and avalanche control“ – WLV Bregenz

Il contatto locale

Roger Moor
   

Roger Moor

Country Manager Ost- und Zentralschweiz, Liechtenstein

Sistemi contro il dissesto idrogeologico
Ingegneria idraulica
Miniera / Gallerie
Geobrugg AG,Aachstrasse 11,8590 Romanshorn / Svizzera Country Manager Ost- und Zentralschweiz, Liechtenstein

E-mail

René Müller
   

René Müller

Country Manager Kantone AG BE BL BS FR GE JU NE SO VD VS

Sistemi contro il dissesto idrogeologico
Ingegneria idraulica
Miniera / Gallerie
Geobrugg AG,Industriestrasse 21,5200 Brugg / Svizzera Country Manager Kantone AG BE BL BS FR GE JU NE SO VD VS

E-mail

Alexander Bittendorfer
   

Alexander Bittendorfer

Project Manager Inspection Services

Sistemi contro il dissesto idrogeologico
Geobrugg AG,Aachstrasse 11,8590 Romanshorn / Svizzera Project Manager Inspection Services

E-mail

Isacco Toffoletto
   

Isacco Toffoletto

Ticino Country Manager

Sistemi contro il dissesto idrogeologico
Ingegneria idraulica
Miniera / Gallerie
Geobrugg AG Ticino,Stabile Cometal, via Pizzante 7,6595 Riazzino / Svizzera Ticino Country Manager

E-mail