A giant tunnelling machine set to create part of London’s
new super sewer arrived in London this week, with parts unloaded from a ship
onto the Greenwich Peninsula. The machine will be used to create a connection
tunnel linking Greenwich Pumping Station to the main super sewer in Bermondsey.
Named after Annie Scott Dill Russell, the first female
scientist to work at the Greenwich Observatory, ‘Annie’ will be assembled on a
site next to the O2 over the next few months before being transported 4km to
Tideway’s site near Deptford Creek.
The connection tunnel, which passes through sites in
Deptford and Surrey Quays, is a key part of Tideway’s work to protect the
Thames from sewage pollution, which regularly spills into the river when it
rains. The machine, one of six giant tunnelling machines being used on the
Tideway project, was built in Germany, shipped up the Rhine and sailed to
London from Holland.'Four machines (Charlotte, Rachel, Ursula and Millicent)
are already deep beneath London, creating the super sewer to protect the River
Thames for generations to come.
The 3 m-wide refurbished TBM, named Charlotte after
suffragist Charlotte Despard and launched last 26 March from Tideway’s Dormay
Street site, is driving 500 m at around 25m deep and it is heading southward to
King George’s Park to construct the Frogmore Connection Tunnel. When completed
it will be transported back to Dormay Street and tunnel northward another 600m
under the River Thames to connect to the main tunnel at Tideway’s Carnwath Road
site in Fulham later this year. When the project is complete in 2024, the 1.1km
Frogmore Connection tunnel will take sewage overflows from King George’s Park
into the main 25km Thames Tideway Tunnel at Fulham, where it will be
transferred to east London for treatment.
On July, 22 Ursula, the eastbound TBM launched from
Kirtling Street in Battersea, has completed the first kilometre of her 7.5km
drive towards Chambers Wharf in Bermondsey. The TBM is named Ursula after
Audrey ‘Ursula’ Smith, a British cryobiologist at King’s College Hospital who
discovered the use of glycerol to protect human red blood cells during
freezing. Along her journey under the River Thames, Ursula will pass by famous
London landmarks including the Houses of Parliament, the London Eye and
Waterloo Bridge.
Due to changing ground conditions in east London, Ursula
will undergo a pitstop at Tideway's Blackfriars Bridge Foreshore site, allowing
the team a chance to conduct maintenance on the cutter-head that extracts spoil
from the tunnel.
Following this work, Ursula will continue on to her final
destination at Chambers Wharf, Tideway's east drive site.
Millicent, the westbound TBM launched from Kirtling
Street in November last year, recently surpassed the halfway mark of her 5km
drive towards Fulham.
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information please visit https://www.tideway.london/news/site-news/2019/july/giant-tunnelling-machine-arrives-on-greenwich-peninsula/#sub-nav.
31/19.
Here=>
https://tunnelbuilder.com/News/Thames-Tideway-Tunnel-Aerial-Photos-Reveal-42-Billion-Projects-Progress.aspx
Uk/54=> https://tunnelbuilder.com/Archive/Projects.aspx?&projectcode=uk%2f54
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