United States
United States

myGeobrugg

Kaikoura State Highway 1 (SR24/30)

Slope Stability - Kaikoura State Highway 1 (SR24 30) 2017

(SR24) Looking North West SH1 - slope stabilisation with TECCO® G65/3 ; note the 4 m high RXE-2000 hybrid attenuator with drape

Slope Stability - Kaikoura State Highway 1 (SR24 30) 2017

(SR30) Looking West SH1 below

 
 

Year of installation

2017

Initial situation

The Kaikoura M7.8 Earthquake caused widespread damage to the road and rail corridor some 20 km North and South of the Kaikoura township. Over 40 major slips inundated the road and rail with over 750,000 m³ of material from source zones up to 500 m above sea level.  The highly fractured greywacke meant frequent future shallow landslides had to be expected.

The hazard created the requirement to actively stabilise over ten sites with wire mesh and bolts to be able to reopen the State Higway and the railway below. Ongoing site identification and remediation is expected for several years

Description

The mesh selected was Tecco® G65/3 ULTRACOATING due to its strength properties, corrosion resistance, low visibility, uniform strength for anchor placement and general ease and speed of installation. To date over 32'000 m² of ultracoated TECCO® 65/3 with galvanised P33/40 spike plates have been installed on eight sites. The mesh was generally anchored using 32 mm solid and self drilling hollow threaded bar anchors in an offset pattern.

Read more about the other Kaikoura projects:

Customer

NCTIR / NZTA

Contractor

Geoverz, RockControl, Abseil Access, SRG, HGS, Avalon

Protected object

Road, Railway

Corrosion protection

GEOBRUGG ULTRACOATING

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