The Onewa Road Interchange project on Auckland’s North Shore was part of Stage 2 of the Northern Busway, a dedicated 8.7km bus route from Constellation Drive to just before the Auckland Harbour Bridge, alongside a major upgrade of the existing Onewa Road interchange to improve safety and access on and off the Northern Motorway. This $33m project was funded by the New Zealand Transport Agency and North Shore City Council with construction works being undertaken by Fletcher Construction from early 2007 to November 2008.
The original Onewa Road Bridge was a two-lane structure with tight high speed turns not suited to modern traffic flows. The project involved completely removing this bridge and its approaches and replacing it with two new bridges dedicated to traffic entering and exiting the southbound lane of SH1. These bridges were built on sweeping curves to allow for safer, faster traffic flow and also included a bus lane for city bound commuters. A third bridge skirts the junction over the City of Cork beach to carry the busway unimpeded around the interchange to join the motorway south just before the Auckland Harbour Bridge.
The site was well-suited to the use of both Leica GPS1200 and TPS1200 Total Stations with the two new on and off ramps designed on superelevated arcs with non-perpendicular piers.
In order to calculate and model the complex three-dimensional shape of the piers, 12d software was used to great advantage from interrogation of design drawings to supplying setout coordinates for surveyors on site. Pre-cast T-Roff girders of up to 30 metres in length were craned into position between the piers after checks and setout of each girder centreline. The bridge deck itself was modelled in 12d and then set out using Road Runner software on a Leica TCRP1203. Constant as-built surveys were undertaken throughout the project to ensure construction tolerances were being adhered to as well as monthly monitoring surveys on areas of pre-loaded fill to keep an eye on the settlement of the four new embankments.
Apart from the need to cause minimum disturbance to traffic, the construction team had to take extra special care not to disturb the habitat of resident New Zealand dotterels. Works were programmed and halted around the nesting seasons of the birds in order to ensure the endangered species had every chance of breeding successfully.
For more information about the Leica GPS1200 GPS solution or the TPS1200 Total Stations please contact Global Survey 09 478 2032
Global Awarded NZ Largest Machine Control Project
In late 2008, Global Survey was awarded NZ’s largest machine control contract to supply Leica fleet management and machine guidance solutions to Solid Energy at their Stockton coal mine north of Westport. The project involves installation of Leica’s Jigsaw 360 systems on 30 items of plant, plus installation of a wireless broadband network to cover the mine – an area of 8 x 3km. Systems installed include drill-rigs, excavators, dozers, wheel loaders, haul trucks and supervisor vehicles. Our teams have spent the last 3-4 months completing the installation of the hardware and are currently involved in commissioning and customer training.
For Solid Energy, the system will allow them to automatically schedule and optimise movements of haul trucks and excavators, improve safety when working above old underground workings and track coal movements from the pits to the stockpiles. Comprehensive reports are available in real time or at shift change to enable analysis of performance against customised KPIs. Visibility to the system is controlled by Solid Energy’s IT department, ensuring those who need to know get access to the data they need, right when they need it.
In order to map old underground workings, Solid Energy and Chris Coll Surveying have been Laser Scanning (including the Leica Scanstation and the MDL cavity scanner) to create detailed and accurate maps which are used to generate hazard zones for the Leica fleet management system.
The system is scheduled to ‘Go Live’ on June 1st, when the many stakeholders at the mine will be analysing the results for improvements in safety, operational costs and product quality.
For Solid Energy, the system will allow them to automatically schedule and optimise movements of haul trucks and excavators, improve safety when working above old underground workings and track coal movements from the pits to the stockpiles. Comprehensive reports are available in real time or at shift change to enable analysis of performance against customised KPIs. Visibility to the system is controlled by Solid Energy’s IT department, ensuring those who need to know get access to the data they need, right when they need it.
In order to map old underground workings, Solid Energy and Chris Coll Surveying have been Laser Scanning (including the Leica Scanstation and the MDL cavity scanner) to create detailed and accurate maps which are used to generate hazard zones for the Leica fleet management system.
The system is scheduled to ‘Go Live’ on June 1st, when the many stakeholders at the mine will be analysing the results for improvements in safety, operational costs and product quality.
New Rugby Lasers
Global Survey announces three new durable Leica Rugby single/dual grade lasers for general construction 
With the new Leica Rugby 260SG, 270SG and 280DG Leica Geosystems extends its wide range of rugged construction lasers. The user friendly lasers are packed with latest technology of highest quality. They are easy to use and are suitable for flat, grade and even interior applications (Rugby 280DG).
For many years Leica Rugby lasers are recognized as being the most reliable in the market. The Leica Rugby 260SG, 270SG and 280DG lasers are a new generation of multipurpose horizontal/vertical grade lasers for the general construction market addressing a large customer base. They offer contractors a real choice of features and functionalities for virtually any application. All lasers are equipped with a large LCD display and an easy-to-use five button key pad.
Leica Rugby 260SG – A highly accurate single grade laser for general constructionThe Rugby 260SG is a high accurate single-grade laser designed as entry model in the general construction market. It has a rugged housing, full LCD display for ease of use, includes a highly visible red beam laser and semi-automatic leveling mode with a working range of up to 600 meters in diameter.
Leica Rugby 270SG – A fully automatic, single grade laser The Rugby 270 SG is based on the same platform as the Rugby 260SG but has the full automatic leveling mode and has an extended working range of up to 700 meters in diameter.
Leica Rugby 280DG - Horizontal, vertical dual grade laser for any exterior and interior applicationThe Rugby 280DG is a multipurpose laser with full automatic, dual grade capability. Featured with a red bright beam the laser additionally features a plumb beam, scan mode, horizontal and vertical self-leveling, a dual grade up to 15% in both
axes and is available with a two-way remote control.Swiss Technology – built to last with warranty extension options up to five years.
All Rugby models are rugged and reliable and built on Leica Geosystems’ Swiss Technology to withstand harshest construction environment. The new Rugby lasers are backed with a two-year plus knockdown warranty and a factory warranty that can be extended up to five years.
email sales@globalsurvey.co.nz for more information
With the new Leica Rugby 260SG, 270SG and 280DG Leica Geosystems extends its wide range of rugged construction lasers. The user friendly lasers are packed with latest technology of highest quality. They are easy to use and are suitable for flat, grade and even interior applications (Rugby 280DG).
For many years Leica Rugby lasers are recognized as being the most reliable in the market. The Leica Rugby 260SG, 270SG and 280DG lasers are a new generation of multipurpose horizontal/vertical grade lasers for the general construction market addressing a large customer base. They offer contractors a real choice of features and functionalities for virtually any application. All lasers are equipped with a large LCD display and an easy-to-use five button key pad.
Leica Rugby 260SG – A highly accurate single grade laser for general constructionThe Rugby 260SG is a high accurate single-grade laser designed as entry model in the general construction market. It has a rugged housing, full LCD display for ease of use, includes a highly visible red beam laser and semi-automatic leveling mode with a working range of up to 600 meters in diameter.
Leica Rugby 270SG – A fully automatic, single grade laser The Rugby 270 SG is based on the same platform as the Rugby 260SG but has the full automatic leveling mode and has an extended working range of up to 700 meters in diameter.
Leica Rugby 280DG - Horizontal, vertical dual grade laser for any exterior and interior applicationThe Rugby 280DG is a multipurpose laser with full automatic, dual grade capability. Featured with a red bright beam the laser additionally features a plumb beam, scan mode, horizontal and vertical self-leveling, a dual grade up to 15% in both
axes and is available with a two-way remote control.Swiss Technology – built to last with warranty extension options up to five years.All Rugby models are rugged and reliable and built on Leica Geosystems’ Swiss Technology to withstand harshest construction environment. The new Rugby lasers are backed with a two-year plus knockdown warranty and a factory warranty that can be extended up to five years.
email sales@globalsurvey.co.nz for more information
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