The Forrestfield-Airport Link (FAL) project will deliver an 8.5 km extension of the existing PTA urban rail network in Perth, Western Australia connecting the Midland Line, just past Bayswater Station, to Forrestfield, running underground in twin bored tunnels underneath the Swan River, Tonkin Highway and Perth Airport. The project will include three new stations, being: Redcliffe Station (located underground in Redcliffe), Airport Central Station (located underground at Perth Airport to service both domestic and international terminals) and Forrestfield Station.

The project will provide new rail services allowing a 20-minute rail journey from Forrestfield Station to the Perth CBD, improved bus networks for the eastern suburbs, foothills and surrounding communities as well as integration with the full Transperth bus and train network.

Redcliffe Station and Forrestfield Station will have rail-bus interchanges and up to 2,500 new car parking bays in total.

Description of Geomotion Works

Salini Impregilo S.p.A. - NRW Pty Ltd Joint Venture (SI- NRW JV) has entered into an agreement with Field Monitoring Services, Geomotion Australia, Land Surveys Joint Venture (FGLS JV) for the work of:

“SUPPLY, INSTALLATION, TESTING, OPERATION, MAINTENANCE OF GEOTECHNICAL AND SURVEY INSTRUMENTATION, INCLUSIVE OF MONITORING AND MIMS MANAGEMENT FOR FORRESTFIELD AIRPORT LINK PROJECT”.

​Geomotion is working as a part of Joint Venture partner and broadly responsible for the followings works:

• Drilling (through subcontractor) & Installations, maintenance and monitoring of Geotechnical Instruments as per Project Instrumentation and Monitoring Plan (IMP). The monitoring system incorporates installation of Inclinometer tubing with spider magnets/ magnetic ring for DEX system including in-place inclinometers, single and multipoint rod extensometers & displacement transducer, Heave Stake, Piezometers (Vibrating wire, vented pressure transducer with conventional sand filter), Strain Gauges (surface, tunnel segment & strut), Strut Load Cells, Biaxial Tilt meter, Electro level Beam, Vibrometer and Structure Monitoring Prism inside tunnel for convergence monitoring.
• Installation of Dataloggers (miniOmnialog, Omnialog, Loadsensing, Syscom) with telemetry for automation for instruments required near real time measurements.
• Set up & Maintenance of Web based Monitoring Information & Management System (MIMS) using Maxwell Geosystems Mission OS construction data management package. All sensors are either connected to data logging system and is linked to MIMS with telemetry or manual survey data processed & uploaded on MIMS. The software allows direct comparison between monitored and designed behavior including automated reporting.

The Western Harbour Tunnel & Beaches Link is a planned north-south motorway along the current alignment of Wakehurst Parkway between Warringah Road, Frenchs Forest and the WestConnex motorway in Sydney. Up to 235 borehole sites will be tested in suburbs including Balgowlah, Seaforth, North Sydney, Neutral Bay and Cammeray. These investigations will feed into engineering design, final costings for the project and further route analysis.

As part of the geotechnical investigation, Geomotion was commissioned by AECOM to install Vibrating Wire Piezometers (VWP’s) at three inclined borehole locations along the proposed alignment. At each location, up to four VWP’s were installed at lengths of up to 160 m to monitor specified zones of ground water pressure. Each location was fitted with a Rippa 3G data logger with Stalker VW interface. Each of the four data loggers were custom designed and built to fit in the top of the borehole underneath a trafficable GATIC.
 
The data loggers have been programmed to upload hourly readings to a cloud based server. Data is presented showing fluctuations in water pressure (kPa), meters below ground level (mBGL), meters Australian Height Datum (mAHD), meters head of water (mH20).
 
Geomotion has also supplied and commissioned twelve water level data loggers. The system comprises a Sisgeo 4-20mA piezometer and Rippa 3G data logger installed within standpipe piezometers all housed beneath a trafficable GATIC. The water level is recorded hourly and uploaded on a 12 hourly basis, presented on Outpost’s online data management system. The system brings in data from nearby BOM stations to correct for barometric pressure changes and present rainfall data.

Geomotion have been commissioned to supply and install geotechnical instrumentation for the Waste Fines Storage Facility Project at Hope Downs 4 DSP Pit. 

The Hope Downs 4 (HD4) mine is an iron ore mine located in the Pilbara region of Western Australia, 100 kilometres northwest of Newman. The mine is partly owned and operated by Rio Tinto Iron Ore (RTIO) and is one of twelve iron ore mines the company operates in the Pilbara.
 
UON’s client RTIO required an increase in capacity to the mining site's current waste fines facilities, necessary to continue plant operations. The works involved supply, install and construct the piping and waste fines facilities infrastructure including geotechnical monitoring equipment, relocation of existing infrastructure inclusive of the removal and replacement of HV and fibre optic cable, pumping equipment and an extension to the piping facilities inclusive of trenching earthworks.

The geotechnical monitoring system used the proven Vibrating Wire (VW) Technology on Piezometers and Pressure Cells running below ground conduit excavation along the pit bench attached to Load Sensing VW Node Dataloggers inside two Terminal Boxes located at the pit surface for remote monitoring.
 
The VW Piezometers were installed in 20L buckets filled with saturated waste fines slurry to measure and monitor pore water pressures. The VW Pressure Cells were installed on 500x200mm blinding concrete plinths, backfilled with waste fines, to determine the distribution, magnitude and directions of total soil pressure. The design will be used to monitor and control placement of fill and essentially provide adequate warning of excess soil pressures into the operational life of the pit structure.

​The $1.86 billion Forrestfield-Airport Link is jointly funded by the Australian and Western Australian governments and will deliver a new rail service to the eastern suburbs of Perth – with three new stations at Belmont, Airport Central and Forrestfield.

The rail link will connect with the existing Midland line near Bayswater Station and will run to Forrestfield through underground tunnels, to ensure minimal impact on the existing land and road network.

This landmark transport project will:
• Increase public transport options for the eastern suburbs and foothills area.
• Improve access between the city and Perth Airport.
• Drive development in the area to benefit current and future residents.

Early in 2016, the major contract for the Forrestfield-Airport Link project was awarded to Salini Impregilo - NRW Joint Venture (SI-NRW). This contract will see SI-NRW design and build 8km of rail tunnels and three new train stations, and maintain the infrastructure of some items for a 10-year period, once the project is complete in 2020.”

Source: www.forrestfieldairportlink.wa.gov.au 

The FGLS Joint Venture (Field Monitoring Services Australia – Geomotion Australia – Land Surveys) is providing a complete monitoring solution to the lead contractors SI-NRW JV.

SISGEO Group supply and supervise to the installation of all the geotechnical and structural instrumentation, including data loggers (OMNIAlog and miniOMNIAlog) to FGLS JV.

Geomotion recently completed the establishment of a complete remote monitoring solution for South32 at its Worsley Alumina refinery near Collie.  The system draws on data from piezometers spread over 5km across the site.

​Worldsensing LS-G6 long range radio data loggers are changing the way Australians are monitoring their projects. Now implemented on major projects in every state in Australia, the system is proving its reliability and ease of use.

Geomotion Australia are utilising the system to monitor train stations in Perth; highway developments in Ballina and Adelaide; dams in the Northern Territory, Western Australia and Tasmania, as well as processing plants in Western Australia and schools and high-rise apartment buildings in Melbourne.

Through simplicity, low-to-no maintenance requirements and low cost, the LS-G6 system is bringing automation and remote data access to sites where previously the cost and practicalities would have been prohibitive.
 
The LS-G6 models are capable of reading Vibrating Wire (VW), analogue and digital sensors. This means that on a single site we are monitoring groundwater, cracks, structural health and pile deformation with the same data system, each with a low-profile autonomous data logger recording and transmitting the data.

To find out more about how Geomotion Australia can assist your project with the LS-G6 Monitoring System, select from the links below or call us on 1300 884 542.

​The Swan River Pedestrian Bridge forms part of the new Perth Stadium’s integrated transport strategy designed to move patrons safely and efficiently to and from the Stadium and Sports Precinct.

More than 14,000 people are expected to use the Bridge on event days to move between East Perth's Nelson Avenue and the Burswood Peninsula, adjacent to the Stadium. 

Spanning 370 meters across the Swan River the Bridge will be available for community use at all times, showcasing the beauty of the river, adjacent parklands and the Stadium Precinct.

Bridge construction works are underway with the construction of two temporary causeways in the Swan River commencing in January 2016. Bridge foundations are expected to be completed by mid-2016 with the Bridge opening in early 2017.

The following indicative monitoring installations have been installed by Geomotion to assess the settlement/movement of the causeways during the construction period:

• Downhole inclinometers are installed at two locations on each causeway to monitor lateral movement. Inclinometers are located adjacent to Piers 2 and 3 and positioned between the edge of the causeways and the pier.
• Multi-level vibrating wire piezometers (VWPs) at one location on each causeway located at the mid-height and base of the Swan River Alluvium (SRA) to monitor pore pressures. VWPs will be located between the pile caps on Piers 2 and 3 respectively. Each vibrating wire piezometer is connected to a standalone data logger allowing for automatic data retrieval.
• Settlement plates located at not less than eight locations across each of the causeways to monitor vertical settlement (i.e. 16 locations total). Two settlement plates are located at the end of each causeway with the remaining six settlement plates positioned at approximately 25m to 30m spacing (along and across the axis of the causeway).

The monitoring of settlements during construction will collect sufficient information to assess the relationship between settlement, time, SRA thickness and fill thickness and ensure adequate measures are put in place to maintain the design elevation.

Geomotion is the sole provider of Loadsensing in Australasia.

Loadsensing is the market's most cost-efficient data logger for geotechnical sensors, distributing real time data to provide our customers peace of mind for their projects. Its state-of-the-art protocols differ from standard based ZigBee solutions. Loadsensing uses ultra-low power consumption and a single network can support up to 250 nodes. Its user friendly software ensures simple consumer control and comprehension.

The company, founded in 2008 from private equity, has grown very quickly into a serious market contender with its wireless sensors products thanks to its state of the art low power communication capabilities. Today, it counts on highly qualified engineers and experienced executives focusing to meet the exponentially-growing market opportunities worldwide.

Loadsensing has received major press coverage including on the BBC, twice in the Wall Street Journal, and on various TV programs and newspapers. It has won two major awards, the Stockholm Smart City Living Labs Global Award 2011 and the IBM Smart Camp 2010 London Award.

Sales are facilitated by the superior product quality when compared to competing solutions, as well as a strong executive and advisory team as well as  the strategic investor FJME which has a direct access to the construction giant ACCIONA.

​Loadsensing products are made in Barcelona, Spain by Worldsensing.