April 2015 BEAR COTTAGE WELCOMES SELF-REFERRALS CONSTRUCTION UPDATE ARE A A ARE LEX E AT EBR CEL RIV ND TO ING E RIV D ION D JUNE • Continuing tunnelling with both TBM1 and TBM2 • Constructing cross passages • Removing spoil excavated from the tunnels to re-use sites • Receiving ongoing deliveries of materials for concrete segment production • Continuing to make concrete segments at the precast facility • Carrying out Celebration Drive road works • Relocating tunnel support infrastructure from Bella Vista to Showground OA MAY • Continuing tunnelling with both TBM1 and TBM2 • Constructing cross passages • Removing spoil excavated from the tunnels to re-use sites • Receiving ongoing deliveries of materials for concrete segment production • Continuing to make concrete segments at the precast facility • Carrying out Celebration Drive road works • Relocating tunnel support infrastructure from Bella Vista to Showground RK WO BP SERVICE STATION RR APRIL • Continuing tunnelling with both TBM1 and TBM2 • Constructing cross passages • Removing spoil excavated from the tunnels to re-use sites • Receiving ongoing deliveries of materials for concrete segment production • Continuing to make concrete segments at the precast facility • Carrying out Celebration Drive road works RK DSO THREE MONTH LOOK AHEAD WO WIN Thiess John Holland Dragados is raising funds, while delivering the NWRL project, to support Bear Cottage’s important work. If you would like to find out more about Bear Cottage please visit www.bearcottage.chw.edu.au. Bella Vista Norwest MCDONALD’S OLD If your family has a child with a terminal condition, Bear Cottage can provide respite and palliative care in a home-like environment. Bear Cottage at Manly is the only children’s hospice in NSW. CELEBRATION DRIVE CHANGES N Work has started on Celebration Drive at Bella Vista to extend the second lane for eastbound traffic from Old Windsor Road to the roundabout at Lexington Drive. These road works will help improve traffic flow around the roundabout (see map). The work is expected to take up to 12 weeks to complete. It includes localised widening, drainage works, constructing new kerb and gutters and line marking. Most work will occur behind barriers during the day, however some will need to be done out of hours to minimise the impact on the local road network. Some temporary lane closures will take place overnight, as needed, to complete the widening works. Detour signs will be in place to direct motorists and pedestrians. Welcome to the Bella Vista and Norwest quarterly update on construction of the North West Rail Link project. These newsletters are designed to keep you informed of project activities and community involvement in your local area. The $8.3 billion North West Rail Link is Australia’s biggest public transport project currently under construction and a priority infrastructure investment for the NSW Government. Thiess John Holland Dragados has been contracted to build the tunnels and civil works for five of the eight new stations and two services facilities. Reduced speed and other roadwork signs will warn, inform and guide road users and pedestrians around, through or past the work areas. We appreciate your cooperation in observing road signs and driving safely while we carry out these essential works. A crowd watched the exciting break through of Elizabeth To make a complaint or to get more information Call 1800 019 989 Email [email protected] Visit the Community Information Centre, Shop 490, Castle Towers Shopping Centre, Castle Hill (entrance on Old Castle Hill Road) www.northwestrail.com.au Stay up to date with tunnelling activities Register today for community email updates at [email protected]. Like us on Facebook at www.facebook.com/NorthWestRailLink. Florence appears through the wall at Norwest TBM BREAK THROUGHS AT NORWEST It has been a busy start to the year with two tunnel boring machines (TBMs) successfully breaking through into the Norwest Station site. At each breakthrough, an excited crowd watched the massive machines grind their way through the rock wall and into the station area. Elizabeth, the first TBM, which launched from Bella Vista in September 2014, arrived at Norwest in late January. She spent four months underground and covered a distance of 2.1 km. Florence, the second TBM, was launched in October 2014 and arrived at Norwest in early March. Both TBMs underwent maintenance while out in the open in the excavated Norwest Station area, including replacement of cutters on their cutter heads. This was done as the TBMs were moved across the site on frames before they restarted tunnelling and headed off towards the Showground site. Elizabeth has completed over a third of her set route, about 3.7 km, and is located east of Victoria Avenue at Castle Hill. Florence has made her way through over 2.8 km of rock and is approaching the Castle Hill trading zone. Elizabeth and Florence will both have travelled 9 km once they finish tunnelling between Bella Vista and Cherrybrook via Norwest, Showground and Castle Hill. The project’s other two TBMs, Isabelle and Maria, are also progressing well along their 6 km route between Cherrybrook and Epping. You can track the progress of all four tunnel boring machines online on the North West Rail Link (NWRL) website at www.northwestrail.com.au. Printed on BJ Ball – Ecostar Gloss NWRLTSC-TJV-031048-BLV-SH-NEW 1800 019 989 northwestrail.com.au 15_073_NWRL_Bella Vista Norwest News.indd 1 22/04/2015 11:09 am Cudgegong Road Tunnelling Works Rouse Hill Kellyville Bella Vista Norwest Showground Castle Hill Cheltenham Services Facility Cherrybrook Epping Chatswood Macquarie Park North Ryde Interchange with existing network HEADING IN THE RIGHT DIRECTION A RINGING SUCCESS The precast facility at Bella Vista recently celebrated a key milestone when it achieved production of 50,000 concrete segments. This is halfway to the target of 100,000 segments needed to line the NWRL’s twin tunnels. The precast facility is operating around the clock to make a segment every seven minutes. As the project’s four TBMs excavate, they install the concrete segments onto the walls. Six segments are needed to make up one ring, which together form the permanent lining for the 15 km twin tunnels. How do the tunnel boring machines know which direction to head when underground? This is a question that gets asked often. The answer is a sophisticated laser guidance system and software. The guidance system is specially designed for TBMs which install ring segments to line the tunnels as they excavate. More than 74,000 m³ of concrete has been used so far to create the precast segments. This is enough to fill more than 30 Olympic-sized swimming pools. Tracking is done via a continuous laser system which monitors surface data and monitoring points which have been installed along the tunnel alignment. Inside the tunnel there is a piece of equipment called a theodolite which pinpoints where the TBM is at all times. It does this using a laser beam which it sends through three different prisms located at the head of the machine. The precast facility has made over 50,000 segments Macquarie University This is translated into a system of coordinates and levels to track the TBM’s progress. The information is also used to select the best ring position or angle to suit the direction in which the cutter head is heading. A computer in the TBM’s control room displays all of this information which the operator then uses to steer the machine in the right direction. A theodolite uses a laser beam to help pinpoint the TBM’s location Loading segments onto trucks at the precast facility CONNECTING THE TUNNELS which also have ramps, provide easier access to the cross passage area. They are also used to store materials, stockpile excavated rock, park machinery and prepare equipment. They also allow tunnel vehicles to pass on their way to and from the TBMs. Work platform creates a flat surface in the round tunnel A tunnel vehicle tows the platforms and ramps into position and they are temporarily fixed to the tunnel wall. Once installed, workers break through the concrete segments lining the walls. They use remote control rock hammers, which can be safely used to excavate the cross passages. Rock bolts are inserted into the passage walls to stabilise them. Concrete is then sprayed onto the walls before they are waterproofed and a final concrete layer installed. Construction of cross passages between the two main North West Rail Link tunnels is underway beneath Bella Vista. There will be 55 connecting passages located every 240 m along the tunnel alignment. They are generally 5 m wide, 4.5 m high and 5 m long. 15_073_NWRL_Bella Vista Norwest News.indd 2 A cross passage between the two tunnels A theodolite is used to help navigate the TBMs underground KEEPING UP WITH THE TBMs As the two tunnel boring machines, Elizabeth and Florence, move further along the NWRL alignment, their supporting infrastructure will need to follow them. Over the coming months, this infrastructure will be moved from the original launch site at Bella Vista to the Showground Station site. This is about halfway to their final tunnelling destination at Cherrybrook. The infrastructure, which will be re-erected at Showground, is essential for the TBMs to operate. It includes two spoil conveyors (one for each tunnel), two grout plants (consisting of four silos) and kilometres of pipe to supply power, water and grout to each of the TBMs. Cross passages are created as soon as possible after the second tunnel comes in line with the first tunnel. It is important for safety reasons to open up these passages so people can access the other tunnel if there is an emergency. The first stage when building a cross passage is to install a work platform in the round tunnel to create a flat surface. The platforms, Operator looking at the data on the computers in the control room Some oversized equipment will need to be transported out of hours due to Roads and Maritime Services restrictions on the movement of oversized vehicles. This will minimise the impact on local traffic. Spoil conveyors will be relocated from Bella Vista to Showground The relocation will also involve tunnelling personnel and the workforce relocating to the Showground site. 22/04/2015 11:09 am April 2015 BEAR COTTAGE WELCOMES SELF-REFERRALS CONSTRUCTION UPDATE ARE A A ARE LEX E AT EBR CEL RIV ND TO ING E RIV D ION D JUNE • Continuing tunnelling with both TBM1 and TBM2 • Constructing cross passages • Removing spoil excavated from the tunnels to re-use sites • Receiving ongoing deliveries of materials for concrete segment production • Continuing to make concrete segments at the precast facility • Carrying out Celebration Drive road works • Relocating tunnel support infrastructure from Bella Vista to Showground OA MAY • Continuing tunnelling with both TBM1 and TBM2 • Constructing cross passages • Removing spoil excavated from the tunnels to re-use sites • Receiving ongoing deliveries of materials for concrete segment production • Continuing to make concrete segments at the precast facility • Carrying out Celebration Drive road works • Relocating tunnel support infrastructure from Bella Vista to Showground RK WO BP SERVICE STATION RR APRIL • Continuing tunnelling with both TBM1 and TBM2 • Constructing cross passages • Removing spoil excavated from the tunnels to re-use sites • Receiving ongoing deliveries of materials for concrete segment production • Continuing to make concrete segments at the precast facility • Carrying out Celebration Drive road works RK DSO THREE MONTH LOOK AHEAD WO WIN Thiess John Holland Dragados is raising funds, while delivering the NWRL project, to support Bear Cottage’s important work. If you would like to find out more about Bear Cottage please visit www.bearcottage.chw.edu.au. Bella Vista Norwest MCDONALD’S OLD If your family has a child with a terminal condition, Bear Cottage can provide respite and palliative care in a home-like environment. Bear Cottage at Manly is the only children’s hospice in NSW. CELEBRATION DRIVE CHANGES N Work has started on Celebration Drive at Bella Vista to extend the second lane for eastbound traffic from Old Windsor Road to the roundabout at Lexington Drive. These road works will help improve traffic flow around the roundabout (see map). The work is expected to take up to 12 weeks to complete. It includes localised widening, drainage works, constructing new kerb and gutters and line marking. Most work will occur behind barriers during the day, however some will need to be done out of hours to minimise the impact on the local road network. Some temporary lane closures will take place overnight, as needed, to complete the widening works. Detour signs will be in place to direct motorists and pedestrians. Welcome to the Bella Vista and Norwest quarterly update on construction of the North West Rail Link project. These newsletters are designed to keep you informed of project activities and community involvement in your local area. The $8.3 billion North West Rail Link is Australia’s biggest public transport project currently under construction and a priority infrastructure investment for the NSW Government. Thiess John Holland Dragados has been contracted to build the tunnels and civil works for five of the eight new stations and two services facilities. Reduced speed and other roadwork signs will warn, inform and guide road users and pedestrians around, through or past the work areas. We appreciate your cooperation in observing road signs and driving safely while we carry out these essential works. A crowd watched the exciting break through of Elizabeth To make a complaint or to get more information Call 1800 019 989 Email [email protected] Visit the Community Information Centre, Shop 490, Castle Towers Shopping Centre, Castle Hill (entrance on Old Castle Hill Road) www.northwestrail.com.au Stay up to date with tunnelling activities Register today for community email updates at [email protected]. Like us on Facebook at www.facebook.com/NorthWestRailLink. Florence appears through the wall at Norwest TBM BREAK THROUGHS AT NORWEST It has been a busy start to the year with two tunnel boring machines (TBMs) successfully breaking through into the Norwest Station site. At each breakthrough, an excited crowd watched the massive machines grind their way through the rock wall and into the station area. Elizabeth, the first TBM, which launched from Bella Vista in September 2014, arrived at Norwest in late January. She spent four months underground and covered a distance of 2.1 km. Florence, the second TBM, was launched in October 2014 and arrived at Norwest in early March. Both TBMs underwent maintenance while out in the open in the excavated Norwest Station area, including replacement of cutters on their cutter heads. This was done as the TBMs were moved across the site on frames before they restarted tunnelling and headed off towards the Showground site. Elizabeth has completed over a third of her set route, about 3.7 km, and is located east of Victoria Avenue at Castle Hill. Florence has made her way through over 2.8 km of rock and is approaching the Castle Hill trading zone. Elizabeth and Florence will both have travelled 9 km once they finish tunnelling between Bella Vista and Cherrybrook via Norwest, Showground and Castle Hill. The project’s other two TBMs, Isabelle and Maria, are also progressing well along their 6 km route between Cherrybrook and Epping. You can track the progress of all four tunnel boring machines online on the North West Rail Link (NWRL) website at www.northwestrail.com.au. Printed on BJ Ball – Ecostar Gloss NWRLTSC-TJV-031048-BLV-SH-NEW 1800 019 989 northwestrail.com.au 15_073_NWRL_Bella Vista Norwest News.indd 1 22/04/2015 11:09 am
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