CRL Connection
22 August 2017
Sandrine starts D-wall work on Lower Queen Street This week, Sandrine, the new 90-tonne piling rig, started work on the City Rail Link’s 18-metre-deep diaphragm walls in Lower Queen Street. Also known as D-walls, they will form the structural support for Britomart Station’s Chief Post Office building and the CRL tunnel box. They will also provide ground support to the tunnel excavation and prevent water ingress. The construction process involves Sandrine’s trenchcutter, with its two counter-rotating discs, being lowered through reinforced concrete guide walls to begin excavation. The resulting spoil (excavated soil) is sucked out and replaced with bentonite slurry, which supports the walls of the excavation so they don’t cave in. Once the full depth is reached, the trench cutter is removed and four 4.5 metre-long steel reinforcing cages are coupled together and lowered into the excavation through the slurry. Concrete is then pumped into the bottom of the excavation and slowly displaces the slurry, which is sucked out and returned to the large red holding tanks for filtration and re-use. D-wall construction is expected to take about six months. D-wall construction underway. Sandrine’s two counter-rotating discs allow her to excavate downwards.
Click here for more information and videos on Sandrine and the CRL’s D-wall construction methods.
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Large photographic panels add vibrancy to Albert Street
The CRL’s Albert Street safety hoardings have gone from boring to beautiful with the addition of almost 100 photographic images of Albert Street architecture and businesses. Captured by photographer Dan Davis, the striking images were organised into collections by designer Michelle Ardern and printed on PVC mesh scrim by Angus Muir Design, who used a double-ink process for added vibrancy.
Fun at Eat Albert Street Albert Street came alive on 10 August with the sights, sounds and tastes of different cultures. Organised by CRL and Activate Auckland and hosted by local businesses, the Eat Albert Street event gave people the chance to appreciate Albert St offerings. Feedback has been very positive, with one local resident saying although he lived on the street, he hadn’t previously been to a local restaurant. The evening event enabled people to try cuisine from around the world. Diners at Da Vinci’s could listen to one of New Zealand’s leading young opera singers and the skills of a guitarist; it was standing room only at the Shakespeare as people danced to the music of the Recliner Rockers and were entranced by Burlesque dancers; lovers of Asian cuisine ate at Grasshopper and Food Alley while watching Thai and Javanese dancers; while others learnt about edible flowers in cooking by a renowned local chef hosted at Roma Blooms. Eat Albert Street was one of the many events held in the city for Heart of the City’s Restaurant Month. However, you don’t have to wait for a special event to enjoy what’s on offer in Albert Street. 2
The result is an artistic collection of slightly see-through panels that bring colour and interest to the area and soften the visual impacts of the construction works. A collaborative venture between CRL and Activate Auckland, the mesh panels have the added benefit of being easy to move and re-use in different construction areas as the project progresses and the material can even be recycled for other uses once the CRL is completed.
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A construction platform in the CPO being prepared for a concrete pour
A guide wall inside the CPO being prepared for an upcoming concrete pour
Floor removal works in the CPO building
CPO floor removal works almost complete Inside the historic Chief Post Office building at Britomart Station, contractors Downer NZ and Soletanche Bachy (DSBJV) are undertaking the final floor removal works in preparation for the construction of the CRL twin tunnels. At the southern end of the CPO, the construction platform is being prepared for a concrete pour.
The construction team has been working closely with Heritage New Zealand to ensure the heritage aspects of the building are not damaged. They will be restored once the CRL works are complete. Click here for more information on what’s happening inside Britomart’s CPO building.
Road surface removal begins between Wolfe and Customs From now until early October, contractor Connectus Joint Venture will remove the remaining section of existing road surface on Albert Street between Wolfe and Customs Streets. This involves excavating the top 1.5 metres of roadway and installing an extensive steel support structure that will hold apart retaining walls during the bulk excavation works for the CRL tunnels. It will also support a pre-cast concrete traffic deck that enables the entire excavation to be completed while maintaining a lane of traffic in each direction.
Have your say If you’re a resident, business or property owner in the CBD, Auckland Transport would like your views on issues related to temporary parking for loading/ unloading goods and providing services (trades, installation, equipment servicing, cleaning, security, etc)
The final section of the traffic deck at the intersection of Customs and Albert Streets is expected to be completed in October. This will return the Customs/Albert intersection to its pre-construction state.
Residents To start the Residents survey, click here
In November, the construction deck along Albert Street will be completed, along with the northbound deck for public traffic. This will provide one traffic lane in each direction for the remainder of the construction works.
Business/Building Owners To start the Business/Property Owner survey, click here
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Bulk excavation continues on Albert St Bulk excavation for the CRL’s cut and cover rail tunnel continues on Albert Street, between Wyndham and Swanson Streets. Pedestrians are offered great views of the ‘big dig’ from the pedestrian bridge across Albert Street at its intersection with Wyndham Street. A second pedestrian bridge is expected to be in place at Swanson Street next month. The excavation involves digging to 18 metres at the deepest point, using long-reach excavators above ground and smaller machinery inside the reinforced trench. The CRL tunnel box will be placed at the bottom and then backfilled. The work is being undertaken progressively from Wyndham St at the southern end to Customs St at the northern end. Excavation is expected to be complete by mid-2018 and construction of the tunnel box by the end of that year. Click here for more CRL construction updates.
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The dirt on the big dig About 6,500 cubic metres of soil has now been extracted from the CRL’s Albert Street construction site – enough to fill almost three Olympic-sized swimming pools. This represents around eight percent of the total 77,000m3 of dirt that will be excavated before the Albert Street works are completed. Each of the small trucks on site is loaded with 5m3 of spoil and each of the big reticulated trucks waiting on the periphery of the worksite leave with 15m3 to take to a development site in Three Kings.
Swanson’s Sandwich Bar – fresh food, made on the premises After working long hours in the food and catering industry for 20 years, Song Sieu and her partner Bill Burirat decided they wanted a business that would allow them to spend more time with their three children on weekends. Last August, the couple bought Swanson’s Sandwich Bar on the corner of Swanson St and Mills Lane, serving customers from 6.30am to 3pm, Monday to Friday. It was a win-win situation for them; owning a business in the industry they know best but not having to juggle family life with crazy work hours. “We realised we’d rather be open during normal working hours, serving quality food,” Song says.
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“We’ve run businesses in Wellington and different places around Auckland, but we really enjoy it here.” Swanson’s prides itself on its fresh ingredients, which are baked or prepared on the premises each morning. It has an extensive deli bar, from which customers can choose sandwich fillings, and a range of breads. The café also offers a selection of salads, toasted sandwiches, sweet and savoury treats, smoothies and an extensive breakfast menu. Song (pictured) says the CRL project will be great for Auckland: “It will make us more of an international city and really help people to move about. At the moment there’s a real sense of something big going on.”
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