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Slope Stability - Sumner Stainless 2019

Location of property - TECCO® STAINLESS G65/3 located below the white house to the left of the yellow house.

Slope Stability - Sumner Stainless 2019

TECCO® STAINLESS G65/3 with P33/40 Spike plates - Note: Existing historic drainage is still intact.

Slope Stability - Sumner Stainless 2019

Stainless steel spike plate with isolation bush.

Slope Stability - Sumner Stainless 2019

Looking East towards the coast - note narrow access path/work platform.

Slope Stability - Sumner Stainless 2019

TECCO® greening two months after installation.

 
 

Year of installation

2019

Initial situation

Earthquake damage to a retaining wall on a residential hill property in Sumner, Christchurch required strengthening. The only access to this property was by a narrow walking track. The difficult access meant that a lightweight solution was required rather than heavy Shotcrete. The property is also located within close proximity to the coast creating the requirement for a corrosion-resistant support system.

Description

The support system selected was TECCO® STAINLESS G65/3 with stainless P33/40 spike plates. The advantages of the stainless TECCO® system are its corrosion resistance, low visibility, uniform strength for anchor placement, greening ability, and speed of installation. 

The lightweight TECCO® components and drill rig could all be helicoptered in one load and placed on the narrow footpath. The TECCO® system avoided multiple helicopter lifts and the subsequent costs that are associated with other bulky reinforcement methods.

To avoid bimetallic corrosion with the Galvanized epoxy painted bar and stainless Spike Plates, Geobrugg isolation bushes were used. The project was only 70m², but without stainless TECCO® it would have been a difficult and costly project.

Customer

Private

Contractor

Rock Control

Protected object

Building

Corrosion protection

INOX / STAINLESS

Your local contact

Roger Moor
   

Roger Moor

Country Manager Ost- und Zentralschweiz, Liechtenstein

Natural Hazards
Hydraulic Engineering
Mining / Tunnels
Geobrugg AG,Aachstrasse 11,8590 Romanshorn / Switzerland Country Manager Ost- und Zentralschweiz, Liechtenstein

E-Mail

René Müller
   

René Müller

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

Natural Hazards
Hydraulic Engineering
Mining / Tunnels
Geobrugg AG,Industriestrasse 21,5200 Brugg / Switzerland Country Manager Kantone AG BE BL BS FR GE JU NE SO VD VS

E-Mail

Alexander Bittendorfer
   

Alexander Bittendorfer

Project Manager Inspection Services

Natural Hazards
Geobrugg AG,Aachstrasse 11,8590 Romanshorn / Switzerland Project Manager Inspection Services

E-Mail

Isacco Toffoletto
   

Isacco Toffoletto

Ticino Country Manager

Natural Hazards
Hydraulic Engineering
Mining / Tunnels
Geobrugg AG Ticino,Stabile Cometal, via Pizzante 7,6595 Riazzino / Switzerland Ticino Country Manager

E-Mail