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Gföller Brücke, Val d’Ega

Rockfall Protection - Gföller Brücke, Val d’Ega 2014

Overview over the Gföller-Bridge with extra latticework, the ROCKFALL-X G system on top and the rockface in the background

Rockfall Protection - Gföller Brücke, Val d’Ega 2014

Moving of the ROCKFALL-X G damping modules using a crane

Rockfall Protection - Gföller Brücke, Val d’Ega 2014

Bags of various heights of 1.0 m, 1.5 m and 2.0 m during installation - visible height dependent arrangement

Rockfall Protection - Gföller Brücke, Val d’Ega 2014

Eventual empty spaces are fiiled with cellular glass in order to prevent any unnecessary movements

Rockfall Protection - Gföller Brücke, Val d’Ega 2014

A layer of topsoil, with a lining of erosion-resistant jute sheet, was installed over the ROCKFALL-X G damping modules and then hydroseeded. Visible final solution appearance

 

Systems

 

System length

20 m - 40 m

 

Year of installation

2014

Situation

The gallery between two stretches of tunnels is exposed to rockfall. The concrete deck risked to be damaged by severe events.

Description

To secure the bridge from rockfall energies up to 2300 kJ, a gallery roof construction was built above the street-stretch between the two tunnels. To reduce the risk further, the gallery-roof was secured by the ROCKFALL-X G damping system. A protection system which works by absorbing kinetic energy, thereby limiting deformation and above all limiting the pressure exerted on the deck by spreading loads over a wide area, while limiting the weight on the gallery so as not to overburden it.

556 preassembled ROCKFALL-X G big bags were delivered and installed during May and June 2014 in the following configuration:

  • 109 pcs. - 1.0 m high
  • 99 pcs. - 1.5 m high
  • 348 pcs - 2.0 m high

Country/Region

Italy

Customer

Provinz Bozen

Engineering

PPS Group, Bozen

Contractor

Max Bögl

Protected object

Road

Corrosion protection

GEOBRUGG SUPERCOATING

Your local contact

René Müller
   

René Müller

Country Manager Western Switzerland

Natural Hazards
Hydraulic Engineering
Mining / Tunnels
Monitoring
Geobrugg AG,Industriestrasse 21,5200 Brugg / Switzerland Country Manager Western Switzerland

E-Mail

Olivia Sartorius
   

Olivia Sartorius

Project Manager Sales Eastern and Central Switzerland

Natural Hazards
Hydraulic Engineering
Mining / Tunnels
Monitoring
Geobrugg AG Project Manager Sales Eastern and Central Switzerland

E-Mail

Isacco Toffoletto
   

Isacco Toffoletto

Country Manager Southern Switzerland

Natural Hazards
Hydraulic Engineering
Mining / Tunnels
Monitoring
Geobrugg AG Ticino,Via Brusada 5,6933 Muzzano / Switzerland Country Manager Southern Switzerland

E-Mail