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Trbovlje rockslide protection

Protezione da caduta massi - Trbovlje rockslide protection 2016

Overview of the situation after the event.

Protezione da caduta massi - Trbovlje rockslide protection 2016

Overview of the situation after the event.

Protezione da caduta massi - Trbovlje rockslide protection 2016

Slope preparation for the installation works. Cleaning of the surface.

Protezione da caduta massi - Trbovlje rockslide protection 2016

Example of conditions on the installation site, where helicopter transport was involved.

Protezione da caduta massi - Trbovlje rockslide protection 2016

Example of conditions on the installation site, where helicopter transport was involved.

Protezione da caduta massi - Trbovlje rockslide protection 2016

Border post positions - highest helicopter pilot accuracy is clearly visible!

Protezione da caduta massi - Trbovlje rockslide protection 2016

Final posts adjustments, line of protection already visible.

Protezione da caduta massi - Trbovlje rockslide protection 2016

Transmission ropes installation. Visible tremendous size of the barrier and it's post profiles.

Protezione da caduta massi - Trbovlje rockslide protection 2016

ROCCO® ring-net bundles prepared for "curtain" installation.

Protezione da caduta massi - Trbovlje rockslide protection 2016

ROCCO® ring-net installation.

Protezione da caduta massi - Trbovlje rockslide protection 2016

RXE-8000 barrier fully installed.

Protezione da caduta massi - Trbovlje rockslide protection 2016

RXE-8000 barrier fully installed.

Protezione da caduta massi - Trbovlje rockslide protection 2016

RXE-8000 barrier fully installed. Perfect perspective concerning protected area.

Protezione da caduta massi - Trbovlje rockslide protection 2016

Additional line of protection: GBE-500A barrier.

Protezione da caduta massi - Trbovlje rockslide protection 2016

RXE-8000 ready to protect. Size of the whole rock slide damage also visible.

Protezione da caduta massi - Trbovlje rockslide protection 2016

Whole project overview - desctruction aread clearly visible.

 

Lunghezza del sistema

- 40 m

 

Anno di installazione

2016

Situazione iniziale

On 20th February 2016 over 500 cubic meters of rock and debris collapsed onto the district road between the county seat Trbovlje and Ljubljana. Not only was the important road blocked, the residents were also cut off from electricity and water.

The debris removal on route R1-223 had to be completed in the shortest possible time, but first sustainable protection measures needed to be developed and installed. Site investigations and software analysis conducted by geologists and engineers indicate a significant hazard potential. The heavily fractured residual rock mass at the mountain top cannot be taken down as it could damage an important nearby railway. However, parallel to the site investigation and software analysis, limited rock scaling was also being performed.

Descrizione

Construction commenced on March 8th with rock drilling to install anchors and base plates for the barrier’s post foundations. Based on the study results national authorities decided to apply a Geobrugg rockfall protection system from the RXE-Series. With its ring nets made of high-tensile steel wire the barrier design has been tested and approved to absorb impact energies of up to 8,000 [kJ]. Additionally, two GBE-500A systems were selected to protect the lower part of the slope.

The posts, ringnet’s ropes and accessories produced and pre-assembled in Romanshorn, Switzerland, were already delivered to Trbovlje by mid-March. The biggest helicopter of the Slovenian Armed Forces delivered the four preassembled ring net bundles along with the five posts, weighing almost 2 metric tons, to the heavily inaccessible terrain. Despite high winds the helicopter crew made the decision: “We’re flying!” The experience of the entire ground and helicopter crew was needed to connect the posts to the base plates within a millimeter of accuracy. The mega-barrier technical acceptance inspection took place on April 4th, the same day officials, stakeholders and the public are welcomed to the inaugural reopening of the newly repaired and secured road.

Cliente

Slovenian Infrastructure Agency (DRSI)

Progettazione:

EHO Projekt

Contraente:

Kaskader

Oggetto protetto

Strada

Protezione dalla corrosione

Galvanized, GEOBRUGG SUPERCOATING

Il contatto locale

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

Olivia Sartorius
   

Olivia Sartorius

Sistemi contro il dissesto idrogeologico
Ingegneria idraulica
Miniera / Gallerie
Geobrugg AG

E-mail

Alexander Bittendorfer
   

Alexander Bittendorfer

Project Manager Inspection Services

Sistemi contro il dissesto idrogeologico
Geobrugg AG,Trucks via road 14 or 13 only!, Aachstrasse 11,8590 Romanshorn / Svizzera Project Manager Inspection Services

E-mail

Isacco Toffoletto
   

Isacco Toffoletto

Sistemi contro il dissesto idrogeologico
Ingegneria idraulica
Miniera / Gallerie
Geobrugg AG Ticino,Via Brusada 5,6933 Muzzano / Svizzera

E-mail