United States
United States

myGeobrugg

Trbovlje rockslide protection

Rockfall Protection - Trbovlje rockslide protection 2016

Overview of the situation after the event.

Rockfall Protection - Trbovlje rockslide protection 2016

Overview of the situation after the event.

Rockfall Protection - Trbovlje rockslide protection 2016

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

Rockfall Protection - Trbovlje rockslide protection 2016

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

Rockfall Protection - Trbovlje rockslide protection 2016

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

Rockfall Protection - Trbovlje rockslide protection 2016

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

Rockfall Protection - Trbovlje rockslide protection 2016

Final posts adjustments, line of protection already visible.

Rockfall Protection - Trbovlje rockslide protection 2016

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

Rockfall Protection - Trbovlje rockslide protection 2016

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

Rockfall Protection - Trbovlje rockslide protection 2016

ROCCO® ring-net installation.

Rockfall Protection - Trbovlje rockslide protection 2016

RXE-8000 barrier fully installed.

Rockfall Protection - Trbovlje rockslide protection 2016

RXE-8000 barrier fully installed.

Rockfall Protection - Trbovlje rockslide protection 2016

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

Rockfall Protection - Trbovlje rockslide protection 2016

Additional line of protection: GBE-500A barrier.

Rockfall Protection - Trbovlje rockslide protection 2016

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

Rockfall Protection - Trbovlje rockslide protection 2016

Whole project overview - desctruction aread clearly visible.

 

System length

- 40 m

 

Year of installation

2016

Initial situation

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.

Description

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.

Customer

Slovenian Infrastructure Agency (DRSI)

Engineering

EHO Projekt

Contractor

Kaskader

Protected object

Road

Corrosion protection

Galvanized, GEOBRUGG SUPERCOATING

Your local contact

Kevin H. Coyle
 

Kevin H. Coyle

Regional Manager Northeast

Natural Hazards
Hydraulic Engineering
Geobrugg North America, LLC,3 Beaudet Terr,Columbia CT 06237 / United States Regional Manager Northeast

E-Mail

Saleh Feidi
 

Saleh Feidi

Regional Manager California

Natural Hazards
Hydraulic Engineering
Geobrugg North America, LLC,8921 Emperor Ave.,San Gabriel, California 91775 / United States Regional Manager California

E-Mail

John Kalejta
 

John Kalejta

Regional Manager Central US

Natural Hazards
Hydraulic Engineering
Geobrugg North America, LLC,3215 67th Avenue Pl,Greeley CO 80634 / United States Regional Manager Central US

E-Mail

Bob Lyne
 

Bob Lyne

Regional Manager Southeast

Natural Hazards
Hydraulic Engineering
Geobrugg North America, LLC,8004 Windspray Drive,Summerfield NC 27358 / United States Regional Manager Southeast

E-Mail

Pierce Runnels, Civil Engineer
   

Pierce Runnels

General Manager Geobrugg North America

Natural Hazards
Geobrugg North America, LLC,22 Centro Algodones , Civil Engineer General Manager Geobrugg North America

E-Mail

Tim Shevlin
 

Tim Shevlin

Sales Director

Natural Hazards
Geobrugg North America, LLC,Salem OR 97302 / United States Sales Director

E-Mail