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Geotech in Motion

Project Update - Forrestfield Airport Link

28/3/2018

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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.
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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.
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Instrument
Qty
Instrument
Qty
​In-Place Inclinometer (Including DEX-S)
39
​Diaphragm Wall Inclinometer Tubing
518m
​Single Point Rod Extensometer with Displacement Sensors
38
​Soil Inclinometer Tubing
958m
Multi Point Rod Extensometer with Displacement Sensors
34
​Vibrating Wire Piezometer
73
​Biaxial Tilt Meters
9
​Vented Pressure Transduce
5
​Strain Gauges (Surface)
8
​Electro level Beam
2
​Strain Gauges (Tunnel Segment)
288
​Heave Stake
2
Strain Gauges (Spot Weldable- Strut)
15
​Vibrometer
9
​Load Cell (Strut)
7
​Structure Monitoring Prism (Tunnel)
114
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Project Update - Forrestfield-Airport Link

8/3/2017

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Geomotion Australia are pleased to have completed their first installations on the Forrestfield-Airport Link. The installations of combined inclinometers / extensometers / piezometers as part of the Forrestfield Dive site mark the beginning of an extensive monitoring program set to continue for the next three years.
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​Geomotion Australia are part of the FGLS Joint Venture, bringing together Australia’s foremost surveying company, Land Surveys, and Italian monitoring specialists Field Monitoring Australia. The FGLS Joint Venture is providing a complete monitoring solution to the lead contractors SI-NRW JV, a joint venture between Salini Impregilio and Perth’s own NRW Civil & Mining. Geomotion Australia are responsible for the installation and monitoring of all geotechnical and structural instrumentation for the project. Instruments and data loggers will be supplied by Italian manufacturers SISGEO. As well as installation and monitoring, Geomotion are implementing and managing the MIMS (Monitoring Information Management System), Maxwell Geosystem’s Mission OS.
​The Forrestfield-Airport Link project will provide a rail link between Bayswater and Forrestfield, including the construction of three new train stations, Belmont, Airport Central and Forrestfield. The twin tunnels travel beneath critical pieces of infrastructure; including airport runways and existing rail networks. To ensure the highest quality of construction and safety, SI-NRW has put in place the most extensive monitoring program in WA history, and Geomotion Australia is proud to be involved.
Forrestfield-Airport Link Rail Route
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New Perth Stadium Train Station Project

24/5/2016

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Project: New Perth Stadium Station
Site: Burswood, Perth
Client: Prism Alliance ( Laing O’Rourke, Aecom, Perth Transport Authority)


In 2018, the multi-purpose 60,000 seat new Perth Stadium will open for the kick-off of the AFL season.

To ensure the safe and efficient movement of the crowd within an hour of an event finishing, the new six-platform Stadium Station will be one of the new infrastructure as a part of the transport strategy. Indeed, 28,000 people are expected to leave from the new Perth Stadium Station.

Geomotion has recently completed the installation of eight Vibrating Wire Piezometers, six 4-20mA pressure transducers, seven MEMS tiltmeters, three Settlement Plates and two inclinometers as part of the Perth Stadium Station Project which will be finalised in advance of the  2018 AFL season.

The equipment is used to monitor the pore water pressure, the piezometric head of ground water during dewatering, the tilt of the Victoria Park Bridge and the settlement of surcharge.

Considering the scale of the project and the distances between the sensors installed, it made sense to use the LS-G6 long range wireless telemetry system by its cost effectiveness and long range performance. The gateway receives the data from all the sensors installed onsite with a distance of 3.5 Kilometers form the furthest monitoring point then relays data to our web-based data presentation package, ARGUS.

Using this system, the client can receive the data in real time and be warned via SMS / Email if any instrument exceeds the set alarm thresholds.
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Perth Stadium - Swan River Pedestrian Bridge

24/5/2016

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Perth Stadium Swan River Pedestrian Bridge, Perth Western Australia

​Project: Swan River Pedestrian Bridge​
Site: Burswood & East Perth​​
​Client: Rizzani York Joint Venture (Rizzani de Eccher / York Civil)
​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 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."
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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.
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Geomotion Australia complete installation of 115 sensors on Perth City Link Project

30/7/2015

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Geomotion Australia has recently completed the installation of 70 In-place Inclinometers, 30 Piezometers, ten Vibrating Wire Crackmeters and two Vibration Monitors as part of the Perth City Link Project.

The equipment is used to monitor the construction of the new underground bus station and monitors diaphragm wall deflection during excavation, the piezometric head of ground water during dewatering, movement across surface cracks on existing tunnels and heritage structures and tunnel vibration.

All instrumentation is linked to the Loadsensing wireless mesh network which relays data to our web-based data presentation package, ARGUS. Through this system, the client has the capacity to receive the data in real time and be warned via SMS / Email should the instrumentation exceed the set alarm thresholds.
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  • Home
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  • Products & Services
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      • Load Cells & Pressure Cells
      • Monitoring Software >
        • Geomotion Cloud
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        • Mission Monitor
      • Readouts
      • Settlement Monitoring
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      • Vibration Monitoring
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