HERRENKNECHT state of the art tunnel boring ... - Holcim Singapore

27 th June 2013
HERRENKNECHT
State of the Art Tunnel Boring Machines
W i l m S c h a u b
H E R R E N K N E C H T A S I A H E A D Q U A R T E R S

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
GLOBAL TRENDS
17 June 2013
Population growth
Rapidly advancing urbanization
New high-capacity infrastructures to keep
people, goods, and resources on the move
Refurbishment and extension of existing
underground infrastructure
Congested arrangement of structure in the
urban underground
Building of new and extension of existing
high-speed train networks
Hydropower Projects
Fresh Water Supply
Irrigation and Sewage
Slide 2
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
AGENDA : TUNNELLING REQUIREMENTS
Longer Drives
Larger Profiles
Capability to handle high pressure
Capability to excavate in heterogeneous ground conditions
Special reference projects
Answer and Questions
17 June 2013
Slide 3
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
LONGER DRIVES & LARGER PROFILES
DEVELOPMENT OF DIAMETER
MIX-Shields
1985: HERA
5.95m
17 June 2013
1996: Sydney
10.70m
1997: Hamburg
14.20m
Slide 4
2006: Shanghai
15.43m
2011
St. Petersburg
19.25m
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
S-317/318 CHANGJIANG UNDER RIVER TUNNEL | SHANGHAI | CHINA
17 June 2013
Slide 5
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
S-317/318 │THE PROJECT DETAILS
Connection between Pudong
and Changxing
Geology consisting of
Sand & Clay
2 Double-deck road tunnels:
17 June 2013
Upper level: 3 lanes
Lower level: service +safety
Segment OD: 15.00 m
Segment ID: 13.70 m
Tunnel length: 7.170 km
each
Yangtze River Crossing:
Maximum overburden above
tunnel axis: 65m
Slide 6
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
S-317/318 │THE MACHINE DETAILS
MIX-Shield®
Shield = 15.43m
Cutter Head accessible under
atmospheric conditions from
the arms
Main drive = 7.6m with total
power of 15x250kW = 3750kW
Back-Up with installation
equipment for road element
Total machine length 130m
17 June 2013
Slide 7
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
S-317/318 │CUTTER HEAD DESIGN
17 June 2013
Slide 8
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
S-317/318 BACK-UP SYSTEM FOR ROAD ELEMENT INSTALLATION
17 June 2013
Slide 9
Wilm Schaub

meter
H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
CHONGMING UNDER RIVER TUNNEL PROJECT
MIXSHIELD S-317/318
180
160
140
120
100
80
60
40
20
0
37 41 45 49 1 5 9 13 17 21 25 29 33 37 41 45 49 1 5 9 13 17 21 25
2006
17 June 2013
S-317 Shanghai
2007
weekly advance
week
2008
Slide 10
meter
180
160
140
120
100
80
60
40
20
0
2 7 12 17 22 27 32 37 42 47 52 5 10 15 20 25 30 35 40 45 50
2007
S-318 Shanghai
week
weekly advance
2008
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
BREAKTHROUGH OF THE WORLD‘S LARGEST TUNNEL BORING
MACHINES.
ABOUT 1 YEAR AHEAD OF TIME.
17 June 2013
May 28, 2008 September 5, 2008
Slide 11
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
S-668 NANJING METRO LINE 10 LOT 3
Tunnel Length = 3.6 km
Ø = 11.61m MIX Shield
Total Thrust Force: 123000 kN
Max. Op. Pressure: 7.5 bar
Smallest accessible chamber
cutter head for tool exchange
under atmospheric conditions
Main Drive Power: 2750 kW
17 June 2013
Slide 12
Wilm Schaub

H E R R E N K N E C H T A G | U T I L I T Y T U N N E L L I N G | T R A F F I C T U N N E L L I N G
S-762 ISTANBUL STRAIT CROSSING
17 June 2013
Trakya Formation
(sandstone/mudstone/dykes)
Transition Zones
(rock, soil, gravel, cobbles)
Slide 13
Marine Deposits
(sand + clay)
Wilm Schaub

H E R R E N K N E C H T A G | U T I L I T Y T U N N E L L I N G | T R A F F I C T U N N E L L I N G
SHIELD CONCEPT.
Bore Diameter 13,690 mm
Shield Diameter 13,660 mm
17 June 2013
Slide 14
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
SHIELD DIAMETER CONCEPT.
Main Dimensions
Bore Diameter 13,690 mm
Front Shield Diameter 13,660 mm
Tailskin Diameter 13,620 mm
Outer Lining Diameter 13,200 mm
Ring building clearance
(Deflector strip) = 2 x 45 mm
17 June 2013
Slide 15
New features
Camera units 5 No.
(transfer chamber & cutter chamber)
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
ISTANBUL STRAIT ROAD CROSSING | MIXSHIELD WITH ACCESSIBLE
CUTTING WHEEL.
17 June 2013
Slide 16
5 Main arms
(atmospheric
accessible)
Center
(Main
atmospheric
access)
5 Side arms
(Chamber
access)
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
ISTANBUL STRAIT ROAD CROSSING | MIXSHIELD WITH ACCESSIBLE
CUTTING WHEEL.
17 June 2013
Slide 17
Cutters 35 No. x 19”
Twin disc Monobloc.
Pressure compensated
Spacing 100 mm
(120 mm center)
Scrapers 32 No. x 250 mm
Atmospheric accessible
Scrapers 90 No. x 220 mm
Buckets 2 x 10 No.
Flushing
outlets 7 No.
Sizers 800 mm
(max. 1,200 mm)
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
DEVELOPMENT OF DIAMETER
EPB-Shields
1991: Taipei
6.26m
17 June 2013
2000: Madrid
9.33m
Slide 18
2003: Barcelona
12.06m
2010: Sparvo
15.50m
2006: Madrid
15.20m
Wilm Schaub

Torque [kNm]
H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
DEVELOPMENT OF TORQUE IN MIXSHIELD AND EPB TUNNELLING
17 June 2013
Slide 19
Diameter [m]
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
S-574 GALLERIA SPARVO = 15.615M – HERRENKNECHT EPB SHIELD.
17 June 2013
Slide 20
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
MAIN DRIVE
Torque: 94.800kNm
Breakout Torque : 125.000kNm
17 June 2013
Slide 21
Power: 12.000kW
Speed: 2,16 rpm
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
CUTTERHEAD DRIVE.
12 electric motors with
1.000 kW each
50 hydraulic motors with a
torque of 2.387 Nm each
50 planetary gearboxes with
transmission ratio of 51,42
Creating a max. total
cutterhead torque of:
125.268 kNm
17 June 2013
Slide 22
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
17 June 2013
Slide 23
THRUST FORCE
315.000kN @ 400bar
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
CAPABILITY TO HANDLE HIGH PRESSURE
DEVELOPMENT OF OPERATION PRESSURE
17 June 2013
Slide 24
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
S-502 │LAKE MEAD, USA
S-502 Lake Mead, Intake No. 3 | Las Vegas | USA
17 June 2013
Dual-Mode TBM - Hard
Rock /Mixshield
Diameter: 7,180mm
Tunnel length: 4,800m
Slide 25
Cutterhead power: 2,800kW
Geology: Basalt, sandstone,
amphibolite, conglomerate
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
CHALLENGES IN MECHANIZED TUNNELLING.
GROUNDWATER PRESSURE.
Sedimentary and volcanic geology
Depth of the tunnel
Potential for high groundwater inflows and high hydrostatic
pressures
17 June 2013
Slide 26
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
CAPABILITY TO EXCAVATE IN HETEROGENEOUS GROUND CONDITIONS
17 June 2013
Slide 27
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
SINGAPORE – CUSTOMIZED SOLUTIONS FOR CHALLENGING PROJECTS
17 June 2013
Slide 28
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
MIXSHIELD TECHNOLOGY
• The Mixshield is an improvement of the original slurry techniques
• Invented by HERRENKNECHT and WAYSS & FREYTAG in the 1980’s
• Designed for a more accurate face pressure control and thus to
minimise the risk of settlements
17 June 2013
Slide 29
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
SLURRY SHIELD - MIXSHIELD
17 June 2013
Bentonite
suspension
Bulk head
Hydraulic
transport cycle
Slide 30
Bentonite
suspension
Bulk head
without air bubble with air bubble
Slurry Shield Mixshield
Air bubble
Hydraulic
transport cycle
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
MIXSHIELD - ACCURATE FACE PRESSURE CONTROL
17 June 2013
Slide 31
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
MIX – SHIELD
1. Cutting Wheel
2. Bulkhead
3. Air – Cushion
4. Submerged Wall
5. Slurry Line
6. Stone-crusher
7. Feed Line
8. Erector
17 June 2013
1
Slide 32
4
6
3
7
5
2
8
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
PRESSURE REGULATION ACCURACY
3
2
1
0
17 June 2013
Support Pressure
MIX Shield - Double Chamber
Support Pressure
Slurry Shield - Single Chamber
0 10 20 30 40 50
time [sec]
Slide 33
Reference Pressure
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
TBM DESIGN
17 June 2013
Slide 34
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
SHIELD
17 June 2013
Slide 35
Optimized design in terms of
machine length
Customized design for various
operation pressures
Thrust Cylinder arrangement
solutions for 5+1 and 7+1
segment lining
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
SHIELD – MAN LOCK
Dual man lock design 2 x (3+2)
Operating pressure: 7 bar
Complies to CENEN12110 regulations
Fully equipped for compressed air works
Manufactured and tested in Germany
Oxygen Decompression System
17 June 2013
Slide 36
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
SHIELD – MATERIAL LOCK
Independent Lock for transfer
of cutting tools from and to the
excavation chamber
No obstruction in air lock
Safe for workers
17 June 2013
Slide 37
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
SHIELD – SLURRY CIRCUIT
Injection Lines for bentonite on
various positions of pressure
wall and submerged wall
Discharge line in shield invert
Heavy duty hydraulic driven ball
valves for operation from the
control cabin
17 June 2013
Chamber flushing
Clogging prevention
Crusher flushing
Pipe bends made of extra
wear resistant material
Slide 38
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
SHIELD – SLURRY CIRCUIT – COMMUNICATING PIPE
If the geology bears an increased
risk of clogging, the submerged
wall gate opening could cake up
gradually and eventually be
completely closed. This could lead
to a pressure rise in the excavation
chamber.
With a communicating pipe, the
bentonite which is pumped into
the excavation chamber can flow
via the communicating tube and
thus prevent a sudden pressure
rise in the excavation chamber.
17 June 2013
Slide 39
[1] Excavation chamber
[2] Working chamber
[3] Communicating tube
[4] Feed line
[5] Slurry line
[6] Clogged submerged wall door
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
STONE CRUSHER
= 700mm crushing size
Wiping mode for clogging prevention in
softground
Optimized hydraulic connection lines
Independent hydraulic power pack
Grid in front of discharge line to prevent
large obstacles from entering the slurry
circuit.
17 June 2013
Slide 40
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
PROBE DRILLING
2 x high performance rock drills
mounted on 360° drill rig
Inclined probe holes through
TBM shield
Horizontal probe holes through
TBM shield and cutting wheel
1 x adjustable center probe drill
hole
17 June 2013
Slide 41
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
PROBE DRILLING – DRILLING PATTERN
Inclined probe drill lines
17 June 2013
Slide 42
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
PROBE DRILLING – DRILLING PATTERN
Horizontal probe drill lines
Center inclined probe drill lines
17 June 2013
Slide 43
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
PROBE DRILLING – DRILLING PATTERN
Combined drilling pattern
17 June 2013
Slide 44
Wilm Schaub

H E R R E N K N E C H T A G | U T I L I T Y T U N N E L L I N G | T R A F F I C T U N N E L L I N G
PROBE DRILLING – BLOW OUT PREVENTER
Blow out preventer
Equipped with rotating seal, pressure relieve valve, mechanical
clamping and manual ball valve
17 June 2013
Slide 45
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
CUTTING WHEEL - STRUCTURE
Heavy Duty Robust Structure
Adaptation of proven solutions
Implementation of experience
gained from former
Herrenknecht projects with
MIX-Shields in Rock and Mixed
Face conditions.
FE Analysis to meet the
requirements of the project
17 June 2013
Slide 46
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
Bucket lips
19” center disc
cutter
17 June 2013
Slide 47
Scrapers
19” face and
gauge disc
cutter
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
CUTTING WHEEL – SHIFTING OF GAUGE DISCS
Shifting of Gauge
17 June 2013
Discs by C-Piece with
full load capacity for
overcut in curve
Slide 48
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
CUTTING WHEEL – WEDGE LOCK MOUNTING
Durable heavy duty mounting
system for rock application
Load transfer through the
housing into the steel structure
of the cutting wheel
Wedge to fix the cutter axis
17 June 2013
Slide 49
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
CUTTING WHEEL – PRESSURE COMPENSATING DISCS- FOR HIGH
OPERATION PRESSURE
For a standard disc cutter, there
is no pressure compensation.
Under high pressure (>3.5bar),
the external pressure is higher
than the internal pressure.
For non P.C unit, high pressure
(>3.5bar) can result in slurry
and muck pressing against seal
sets and contaminating inside
of disc cutters
Damage of the seal sets
reduces the lifetime of the
cutter and higher cost of
refurbishment of cutters
17 June 2013
Slide 50
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
CUTTING WHEEL – PRESSURE COMPENSATING DISCS- FOR HIGH
OPERATION PRESSURE
Herrenknecht pressure compensating discs
use a bladder design that is installed into the
shaft. The balance of the pressure is through
the compensating bore in the shaft
P.C unit is balancing the pressure difference
at the seal sets
The bladder is easy to change and maintain
P.C cutters ensure a higher lifetime, reduce
risk of bearing failure and reduce
refurbishment cost of cutters
Project references:
S502 Lake Mead
S536 Hong Kong Lai Chi Kok
S548/549 Singapore DTL2
S602/603/604/605/617 Singapore DTL2
17 June 2013
Slide 51
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
17 June 2013
Slide 52
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
CUTTING WHEEL – WEAR DETECTION&PROTECTION
Hydraulic Wear detectors for
Disc Cutter
Hydraulic Wear detector for
Steel Structure
Circumferential GRILL BARS
Hardox 400 – HRC 40
Circumferential welded
Hardfacing on shield edge.
HRC 56
VAUTID Plates on front surface
HRC 60
17 June 2013
Slide 53
HARDFACING
On shield edge
HRC 56
GRILL BARS
Hardox 400
HRC 40
Wear detector
For cutting wheel
structure
Wear detector
For disc cutter
VAUTID PLATES
100 x 100 mm
HRC 60
Wilm Schaub

H E R R E N K N E C H T A G | U T I L I T Y T U N N E L L I N G | T R A F F I C T U N N E L L I N G
LATEST DEVELOPMENT: VARIABLE DENSITY TBM
Down to the present day, this is the only TBM‘s of this kind.
Especially it is developed to handle the karstic geology of Kuala
Lumpur.
Convertible between 4 different advance mode
17 June 2013
Slide 54
Wilm Schaub

H E R R E N K N E C H T A G | U T I L I T Y T U N N E L L I N G | T R A F F I C T U N N E L L I N G
WORKING MODES WITH THE DIFFERENT SUPPORT MEDIA.
Mixshield – Mode
17 June 2013
Thin suspension
(bentonite suspension)
4
HDSM – Mode
3
Thick suspension
(bentonite suspension with
filter)
Slide 55
EPB – Mode 2
with bentonite support
Support medium
pasty – liquid earthcake
EPB – Mode
Support medium
pasty earth cake
Wilm Schaub
1

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
VARIABLE DENSITY SYSTEM.
Excavation & Working chamber
17 June 2013
Air bubble
Screw conveyor
Slide 56
Flushing box
with the crusher
Slurry circuit
High density
slurry
Feed line
Slurry pump
Wilm Schaub
Slurry line

H E R R E N K N E C H T A G | U T I L I T Y T U N N E L L I N G | T R A F F I C T U N N E L L I N G
MUCK TRANSPORTATION
Apart from tunnel face support, material transport can also be changed in line
with the respective geology. The system can switch from hydraulic transportation
via pipeline to solid transportation via belt conveyor or muck car haulage.
17 June 2013
Slide 57
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
SPECIAL REFERENCE PROJECTS
17 June 2013
Slide 58
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
S-670 │CONVERTIBLE EPB / SINGLE SHIELD
Convertible EPB / Single Shield
Shield = 10.02 m
Operating Pressure 3.0bar
Tunnel Length 2 x 3860m
Convertible Cutter Head
Simultaneous installation of
screw conveyor and conveyor
belt in shield for quick
conversion
17 June 2013
Slide 59
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
S-670 │CONVERTIBLE EPB / SINGLE SHIELD
17 June 2013
Slide 60
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
40° INCLINE TUNNEL FOR HYDROELECTRIC POWER.
S-575 | Linth Limmern |
Switzerland
Gripper-TBM
Diameter: 5,200mm
Tunnel length: 2 x 1,000m
Cutterhead power: 2,205kW
Geology: limestone
Incline: 85% 40°
Customer: Marti Tunnelbau
17 June 2013
Slide 61
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
PUMPED STORAGE HEPP LIMMERN / SWITZERLAND.
TRANSPORT TO THE JOBSITE BY CABLE-CAR.
17 June 2013
Slide 62
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
17 June 2013
Slide 63
Wilm Schaub

H E R R E N K N E C H T A S I A H E A D Q U A R T E R S | T R A F F I C T U N N E L L I N G
PUMPED STORAGE HEPP LIMMERN / SWITZERLAND.
BREAKTHROUGH FIRST TUNNEL ON OCTOBER 14, 2011.
Machine type: Gripper TBM
Diameter: 5,200mm
Tunnelling length: 1,045m
Gradient: 40.3°
Commissioning: 24.06.2010
Breakthrough: 14.10.2011
Best daily performance: 28.8m
Best weekly performance:
132.6m
17 June 2013
Slide 64
Wilm Schaub

H E R R E N K N E C H T A G | U T I L I T Y T U N N E L L I N G | T R A F F I C T U N N E L L I N G
RAILWAY TUNNEL ENLARGEMENT – RESEARCH AND DEVELOPMENT
Mechanized enlargement of existing railway tunnels
Maintains route availability with relatively little reconstruction work
17 June 2013
Slide 65
Wilm Schaub

H E R R E N K N E C H T A G | U T I L I T Y T U N N E L L I N G | T R A F F I C T U N N E L L I N G
SUMMARY- PERSPECTIVES
Tunnelling projects all over the world are demanding TBM technology
with permanently higher requirements on the TBM design especially
in regards of:
settlement control
operation effeciency
labour safety
operating loads (water pressure, overburden)
adaptability to multiple kinds of geology (Multi Purpose TBM)
cost efficiency
17 June 2013
Slide 66
Wilm Schaub
Page 66

H E R R E N K N E C H T A G | U T I L I T Y T U N N E L L I N G | T R A F F I C T U N N E L L I N G
SUMMARY- PERSPECTIVES
As a supplier of Tunnel Boring Machines, Herrenknecht is
continuously striving to optimize and extend the TBM product
portfolio .
A few exemplary development steps are:
Cutting Wheel geometry closely adapted to project geology
(Custom made)
More wear resistant cutting tools and wear parts
Spherical- and displacable main drives
Accessable Cutting Wheels (smallest Diameter= 11,62m, S-668
Nanjing), extended application range
Improved tailskin sealing systems
Double Screw Conveyor (mainly Chinese market)
More accurate Muck control systems
Geology exploration systems
Data monitoring/ recording systems
17 June 2013
Slide 67
Wilm Schaub
Page 67

THANKS FOR YOUR
Thanks for your attention.
ATTENTION!
THINK POSITIV.
TOGETHER WE BUILD THE FUTURE.
Wilm Schaub
Herrenknecht Asia Pte. Ltd.
+65 92995899
Schaub.wilm@herenknecht.com