SH1 SLIP 14 ROCKFALL PROTECTION

Construction of a 2000kJ rockfall attenuator above the state highway on the Kaikoura coast after the 2016 earthquakes 

Project Overview

 

A large slip caused by the 2016 7.8 magnitude Kaikoura Earthquake developed above SH1 south of Kaikoura closing the State Highway.

 

The head scarp was 200-250m above and nearly twice that long with the lower area of the slip funneled into a narrowed 90m wide chute for rockfall below. After extensive sluicing and scaling to remove the loose debris a 2000kJ rockfall attenuator was designed for installation 30m above SH1 on the newly exposed bedrock in a high risk rockfall zone. 

 

Geovert Solution

 

As the crest contained boulders in newly exposed unconsolidated soils, Geovert proposed some light scaling then meshing the entire head scarp with a helicopter to enable safe access for the construction team and equipment to access the rockfall zone safely below. This ensured the best possible program with reduced delays or possible exposure to unsafe conditions. Cranes were used for a majority of the work, set up in lower risk areas off to the sides, reaching in to undertake drilling and construction of the 120m long 4m high attenuator with a 30m long drape to the road.

By taking a safety in construction approach, Geovert ensured the identified risks were managed or removed, allowing the team to build the system in a controlled environment, safely and productively to meet the road opening dates.

Ground Engineering Capabilities

Ground Engineering Market Sectors

  • LinkedIn - White Circle
  • Facebook - White Circle
  • Instagram - White Circle
  • White YouTube Icon

Australia Headquarters

Block B, Level 1, 

Suite 8 / 247 King St,

Mascot, NSW 2020, 

Australia

+61 (2) 9700 7975

New Zealand Headquarters

15 Kaimahi Rd
Wairau Valley
North Shore 0627

+64 9 837 7808

United States Headquarters

1919 W Elk Pl
Denver, CO 80211
United States

+1 720 452 1191

Singapore Headquarters

80 Robinson Road, #02-00
Singapore 068898

+65 9640 2997

Asset Integrity Maintenance 

Capabilities:

Blasting and Painting

Bridge Maintenance

Certified Fall Arrest Anchor Systems

Concrete Condition Inspections

Concrete Repair and Crack Injections

Condition Surveys

Confined Space

Corrosion Management

Fabrication and Welding

Industrial Cleaning and Water Blasting

Non-Destructive Testing (NDT)

Plant Shutdowns

Protective Coatings and Waterproofing

Refractory Maintenance

Rope Access

Rigging and Heavy Lifting

Seismic and Structural Strengthening

Temporary Access Platforms

Avalanche Protection

Capabilities:

Avalanche barriers and fences

Avalanche towers

Remote avalanche control systems

Snow avalanche protection systems

Snow netting

Basements & Foundations

Capabilities:

Capping Beams

Ground Anchors

Limited Access Drilling

Micro Piling

Mini Piling

Rock Bolting

Seismic Retrofit

Self Drilled Hollow Bar

Shotcrete

Soil Nails

Temporary Ground Anchors

Timber Pole Walls

Geohazard Mitigation

Capabilities:

Active Mesh Stabilisation

Debris Flow Barriers

Design and Build

Devegetation

Drill and Blast

Erosion Control

Geotechnical Inspection & Instrumentation

Rockfall Assessments and Investigation

Rockfall Attenuators

Rockfall Barriers

Rockfall Mesh Drapes

Rockfall Modelling

Scaling and Block Removal

Shallow Landslide Barriers

Ground Anchors

Capabilities:

Ground Anchor Inspection

Ground Anchor Lift Off Test

Permanent Multistrand Ground Anchors

Platipus Anchors

Post Grouted Ground Anchors

Pregrouted Ground Anchors DCP

Removable Ground Anchors

Restressable Ground Anchors

Self Drilled Hollow Bar Anchors

Temporary Multistrand Ground Anchors

Ground Support

Capabilities:

Active Mesh Stabilisation

Bulk Infil Grouting

Cable Bolts

Drill and Blast

Geotechnical Inspection & Instrumentation

Rockfall Assessments and Investigation

Highwall Stabilisation

Longwall Stabilisation

Portal Protection

Rock Bolting

Rockfall Barriers

Rockfall Mesh Drapes

Rockfall Modelling

Scaling and Block Removal

Retaining Structures

Capabilities:

Active Mesh Stabilisation

Design and Build

Drill and Blast

Geotechnical Inspection & Instrumentation

Rock Bolting

Rock Bolting

Rockfall Attenuators

Rockfall Barriers

Rockfall Mesh Drapes

Rockfall Modelling

Scaling and Block Removal

Rockfall Protection

Capabilities:

Active Mesh Stabilisation

Design and Build

Drill and Blast

Geotechnical Inspection & Instrumentation

Rock Bolting

Rock Bolting

Rockfall Attenuators

Rockfall Barriers

Rockfall Mesh Drapes

Rockfall Modelling

Scaling and Block Removal

Rope Access

Capabilities:

Emergency Response

Geotechnical Instrumentation

Supervised Inspections

Slope Stabilisation

Capabilities:

 

Active Mesh Stabilisation

Devegetation

Erosion Control

Ground Support

Retaining Walls

Rock Bolting

Scaling and Block Removal

Shotcrete

Soil Nails

Tunnelling

Capabilities:

 

Canopy Tubes

Ground Anchors

Injection Grouting

Portal Protection

Rock Bolting

Shotcrete

© 2020 Geovert | Website Designed by Andrew Bui