Huge Demand for TBM Tunneling
in Turkey
September 2017, Istanbul
(TR)/Toronto (CDN)/Liaoyang (CN).-
Istanbul is one of the most vibrant Metropolitan Cities of the world,
connecting the European with the Asian continent. With more than 14M
residents, solutions for urban transportation are urgently needed and building
tunnels with Tunnel Boring Machines is the first choice. After first prosperous projects for
wastewater and Metro tunnels, the Canadian-Chinese LOVSUNS Tunneling Canada
Ltd. is again successful to deliver 8 more Tunnel Boring Machines for two
Metro Line projects in Istanbul.
Actually
the whole Metro and urban transportation system in Istanbul comprises more than
230 kilometers in operation, with an additional 30 to 40 kilometers under
construction. In 2017, there is a demand for more than 20 Tunnel Boring
Machines for the extension of the Metro tunnel system on the European and Asian
side of Istanbul. Starting with two
successful preceeding projects, LOVSUNS won the order of altogether 8 more
Earth Pressure Balance (EPB) TBMs for the Alarko-Cengiz and the
Makyol/Ictas/Kalyon/Astor joint ventures.
Kaynarca-Pendik-Tuzla
Metro Line Project
On
the Asian side of Istanbul, 19.78 km double line tunnels are planned for the
extension of the Metro Line M4 with the Kaynarca and Pendik stations and the
connection of the M4 Kaynarca station with the Tuzla station of the B2 Line.
The Alarko-Cengiz joint venture will drive 2 TBMs from the C cross section to
Kaynarca station (2 x 3.2 km) and 2 TBMs from the C cross section to Tuzla
station (2 x 3.3 km). For two further TBM drives from the Pendik to the Hastane
station (2 x 3.39 km) there is one LOVSUNS TBM with pending order and an
existing TBM is planned to use. The launch date for the TBMs is planned for
February 2018.
For
the ground conditions mixed geology with soft to hard and abrasive to very
abrasive rock formations (quarzite, limestone, sand stone, mud stone, some
abrasive quarzite, dayks and more), also some short sections with alivium are
expected.
Kirazli-Halkali Metro
Line Project
On
the European side of Istanbul, 13.20 km double line tunnels are planned for the
connection of the Metro Line M3(M1A) with Halkali station and M1B with Kirazli
Bagcilar station, crossing the M9 Metro Line at Mimar Sinan station. The
Makyol/Ictas/Kalyon/Astor joint venture will drive 2 TBMs from the Mimar Sinan
to Kirazli Bagcilar station (2 x 2.7 km) and 2 TBMs from the planned Fatih to
the Yarimburgaz station (2 x 3.9 km). The launch date for the TBMs is planned
for April 2018.
For
the ground conditions mixed geology with generally soft rock, mud stone, sand
stone, marn, alivium and filled material are expected.
TBM specifications
Both
joint ventures ordered 4 TBMs each with mixed face cutterhead, 1,200 KW main
drive power, high power, torque and advance rates, unique wear protection on
cuttinghead and screw conveyor as well as high screw conveyor output.
LOVSUNS Tunneling
Canada Ltd.
LOVSUNS, former Lovat
which was sold to Caterpillar, carried on the Tunnel Boring Business as the
wholly owned subsidiary of Liaoning Censcience Industry Co. Ltd. – LNSS only
one month after the Caterpillar Tunneling assets were sold to the Chinese LNSS
in November 2014 with the order of the 3.9 m diameter EPB TBM to bore two
wastewater tunnels in Istanbul, Turkey. Further TBM orders for several drives
of the new Metro Line extensions followed. “We designed and engineered
tailormade TBMs for Istanbul in Toronto and completely produced the TBMs in the
facility in Liaoyang China. That means that we very successfully united the
best practice, knowledge and technology of both companies for the highest
advantage of our customers”, explains Hongyu Xue, Managing Director of LOVSUNS
Tunneling Canada Ltd.
Overview
of the Urban Transportation and Metro system - European and Asian Side - in
Istanbul/Turkey
Eight TBMs of this same TBM
type for Alarko in the workshop in Toronto were sold for the extension of the
Metro system in Istanbul
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