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Zagreb-Rijeka Railway Line - Tunnel Meja

Slope Stability - Zagreb-Rijeka Railway Line - Tunnel Meja 2017

Installation of the high tensile TECCO® G65/4 mesh on the slope - visible nail pattern and TECCO® SYSTEM³ spike plates

Slope Stability - Zagreb-Rijeka Railway Line - Tunnel Meja 2017

Overview of the construction site - on the right the old solution with visible gabion mesh which turned out to be not sufficient for the conditions. TECCO® SYSTEM³ was designed to be placed over the old layer of mesh

Slope Stability - Zagreb-Rijeka Railway Line - Tunnel Meja 2017

Drilling works were executed through the old layer of gabion mesh being already strongly fatigued

Slope Stability - Zagreb-Rijeka Railway Line - Tunnel Meja 2017

TECCO® SYSTEM³ protecting slope - visible the pre-tensioning on some nails which allows following the morphology very tight

Slope Stability - Zagreb-Rijeka Railway Line - Tunnel Meja 2017

TECCO® SYSTEM³ protecting slope along the railway line directly next to the Meja Tunnel

 
 

Year of installation

2017

Initial situation

The revision works at the railway line no. M202 Zagreb-Rijeka were done together with the installation of a slope protection system. In the past, regularly occurring rock falls limited the speed of the trains.

Geology

Limestones covered by scree

Description

When designer Vanja Kovačević received data from the geologist, he chose TECCO® G65/4 for this slope protection. TECCO® G65/4 was combined with 4 meters long self-drilling nails (32/21 mm) and 6 to 14 meters long nails (51/34.3 mm).

This is the first TECCO® G65/4 installation in Croatia.

Customer

Croatian Railway

Contractor

Swietelsky d.o.o. Zagreb

Protected object

Railway

Corrosion protection

GEOBRUGG SUPERCOATING

Engineering

Elektroprojekt d.d. Zagreb (Krešo Ivandić and Vanja Kovačević)

Other participating companies

Octopus-Rijeka d.o.o. Rijeka

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Kevin H. Coyle
 

Kevin H. Coyle

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Saleh Feidi
 

Saleh Feidi

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John Kalejta
 

John Kalejta

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Bob Lyne

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Pierce Runnels, Civil Engineer
   

Pierce Runnels

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

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Tim Shevlin

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