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Laves torrentielles et coulées de boue - Kaikoura Coastal Pacific Rail (SK16) 2019

Looking West - VX080-H2 debris flow barrier with 16/3/300 ROCCO ringnet tail. Note proximity to rail and road.

Laves torrentielles et coulées de boue - Kaikoura Coastal Pacific Rail (SK16) 2019

Looking South - VX080-H2 debris flow barrier with 16/3/300 ROCCO® ringnet tail.

Laves torrentielles et coulées de boue - Kaikoura Coastal Pacific Rail (SK16) 2019

Looking upslope - VX080-H2 debris flow barrier with 16/3/300 ROCCO ringnet tail. Note abrasion protection on the top ropes.

Laves torrentielles et coulées de boue - Kaikoura Coastal Pacific Rail (SK16) 2019

Looking upslope - VX080-H2 debris flow barrier with 16/3/300 ROCCO® ringnet tail under construction.

Laves torrentielles et coulées de boue - Kaikoura Coastal Pacific Rail (SK16) 2019

Looking North - SH1 and the Coastal Pacific Rail is an important lifeline and transport route going North from Christchurch.

 

Systèmes

VX TECCO® G65/3 Solutions spéciales

 

Longueur du système

2 m - 10 m

 

Année d’installation

2019

Situation de départ

The Kaikoura M7.8 Earthquake caused widespread damage to the road and rail corridor for 20 km North and South of the Kaikoura township. Over 40 major slips inundated the road and rail with more than 750'000 m³ of material from source zones up to 500 m above sea level. The highly fractured Grey Wacke meant frequent future rockfalls and debris loads were expected. The high rockfall and debris load frequency created the requirement for a Geohazard Solution that attenuated the energy to a manageable level and then guided the material down to a catchment area. Space was limited due to the proximity of the Coastal Pacific rail line. The SK16 site is a narrow, incised catchment that extends about 150 m above road/rail level. The slope angle is about 50-55 degrees.

Description

A 10 meters wide VX080-H2 debris flow barrier was modified to include a 12 meters 16/3/300 ROCCO ring net tail. This system enabled the rockfall and debris energy to be attenuated and guided down to a catchment area at the toe of the slope for easier clearing and reduced maintenance.

Additional support ropes were also installed across the channel to minimise deflection onto the railway. The installation required abrasion protection on the top ropes due to the potential of it being overtopped in above design large events.

TECCO® G65/3 was used as a secondary mesh as a robust solution was required to avoid puncturing failures from the high frequency of smaller high-velocity rocks.

Client

KiwiRail

Entrepreneur

Rock Control

Objet protégé

Chemin de fer

Protection anticorrosion

GEOBRUGG SUPERCOATING

Votre contact local

René Müller
   

René Müller

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

Risques naturels
Ingénierie Hydraulique
Exploitation minière / Tunnel
Geobrugg AG,Industriestrasse 21,5200 Brugg / Suisse Country Manager Cantons AG BE BL BS FR GE JU NE SO VD VS

E-mail

Olivia Sartorius
   

Olivia Sartorius

Country Manager Ost- und Zentralschweiz, Liechtenstein

Risques naturels
Ingénierie Hydraulique
Exploitation minière / Tunnel
Geobrugg AG,Trucks via road 14 or 13 only!, Aachstrasse 11,8590 Romanshorn / Suisse Country Manager Ost- und Zentralschweiz, Liechtenstein

E-mail

Alexander Bittendorfer
   

Alexander Bittendorfer

Project Manager Inspection Services

Risques naturels
Geobrugg AG,Trucks via road 14 or 13 only!, Aachstrasse 11,8590 Romanshorn / Suisse Project Manager Inspection Services

E-mail

Isacco Toffoletto
   

Isacco Toffoletto

Ticino Country Manager

Risques naturels
Ingénierie Hydraulique
Exploitation minière / Tunnel
Geobrugg AG Ticino,Stabile Cometal, via Pizzante 7,6595 Riazzino / Suisse Ticino Country Manager

E-mail