- pit was dug from the
surface in
order to
access and lift the machine's
cutterhead for
repair and
partial replacement in 2015.
Bertha resumed tunnel boring...
- self-propelled units. In
either configuration, they
comprise a drum (
cutterhead) or a
flywheel with a
number of
knives fixed to it that
chops and blows...
- the
cutterheads with
heads suited for the
current conditions. In June 2010 the TBM's hard rock
cutterhead was
replaced with its
original cutterhead, designed...
- (raising and
lowering the
cutterhead boom to cut the
entire height of the coal seam). As the coal
recovery cycle continues, the
cutterhead is
progressively launched...
-
defined during design phase were
verified through continuous monitoring of
cutterhead torques. The 3,340 m (3,650 yd)
tunnel was
excavated and
constructed with...
-
street names that
match the
activities of the
Boring Company, such as
Cutterhead Crossing,
Waterjet Way and
Porpoise Place.
There are also
plans to build...
- 4500
tonnes and an
annual operating consumption of 62
million kWh. The
cutterhead required 12,000 kW of
power whilst the
overall vehicle requires 18 MW...
-
designated for a transit-oriented development. Next to the car park is the
cutterhead for one of the
tunnel boring machines (TBMs) that was used to bore the...
-
February 2019. The
tunnel boring project began in
October 2018
after the
cutterhead conversion and was
completed by the end of 2020. Tuen Mun–Chek Lap Kok...
-
earth pressure balance tunnel boring machine, with a 17.5-metre (57.5 ft)
cutterhead diameter.
After several delays,
tunnel boring was
completed in
April 2017...
