Earth Stability

Case Studies

Project:  Kauri Point

Date: July 2015

Client:  New Zealand Defence Force (NZDF)

This measure and value project was awarded to ESL through direct negotiation following the successful completion of numerous projects for the NZDF.

The project involved the stabilisation of new road cuttings as part of the NZDF’s Ammunition Management Improvement Programme.

The Project required us to work at a height of up to 15 metres over a near vertical section of excavated slope which had construction sites below with other contractors working upon them. 

We were required to drill 100 No. grouted double corrosion (DCP) anchors and 40 No. 20 metre horizontal drains, resulting in over 1,400 lineal metres of drilling.   We also lay a combination of turf reinforcement mesh, steel bearing plates and reinforced concrete blocks to connect the anchors to the slopes.

Due to the highly sensitive environment (stored munitions) and presence of other contractors working in the areas below the Site, this Project required careful planning and highly skilled project management to eliminate the risk of serious incident, delays and disruption to the operation of the base and other contractors’ operations.

Work was completed on time and to budget.   In particular, work was completed without any incident, delay or disruption to the operation of the Naval Base.  

Earth Stability was a finalist in the '2016 Hynds Construction Awards Category B Award', for its work on this project. 

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Completed meshed area

Completed meshed area

Completed site

Completed site

Drilling anchors

Drilling anchors

Drilling horizontal drains

Drilling horizontal drains

Drilling horizontal drains with excavator mounted rig (Large)

Drilling horizontal drains with excavator mounted rig (Large)

Installing anchors

Installing anchors

Installing precast concrete anchor blocks to anchors (Large)

Installing precast concrete anchor blocks to anchors (Large)

Precasting of concrete anchor blocks

Precasting of concrete anchor blocks

Rope access drilling

Rope access drilling

View of site

View of site