TUNNEL STRUCTURES@ DFMA
CLASSIFICATION OF STRUCTURE ELEMENTS
• OHVD Slab (Precast)
Upper Structure
• Parapet Structure (Precast)
• Walkway Slab (Precast)
Intermediate Structure
• Thermal Barrier at Intermediate and Upper level of Internal Structure
Thermal Barrier
• Services Gallery (Precast)
Lower Structure
SERVICES GALLARY @ DFMA
SERVICES GALLARY INSTALLATION
• Maintain access to construction vehicles whileinstallation
• Total 3,700 pcs (8.1km)• 9m wide x 2.2m long (28t/piece)
CORBEL & OHVD @ DFMA
OVERHEAD VENTILATION DUCT (OHVD) SLAB
• Corbel structure by cast insitu method• Precast OHVD slab total 5,300 pcs (10km)• Slab size 9.8m long x 1.93m wide (14-22 tons)
THERMAL BARRIER @ DFMA
INSTALLATION BY VACUUM MANIPULATOR
Productivity 15m2 /man /shift (approx. 33% higher than traditionalmethod)
HYPERBARIC WORKS @ TBM
RISK / RESTRICTION
• Ground collapse• Working temperature• Injury of CAW• Decompression Illness
• Regulations• Working time• Time of decompression• Min. 2 CAW for one disc
TELEMACH @ TBMCUTTERHEAD
ROBOTICS – TBM CUTTERHEAD INSPECTION AND MAINTENANCE• Developed in HK (TM & LT)• Payload 500 Kg • Height : 5.5 meters , weight : 2 Tons• Position repeatability 0.08 mm• 6 axes on the robot + 1 linear axe• Fully automatic robot• Work in humid, dusty and hot conditions• Patented gripper design
SNAKE @ TBM CUTTER HEAD
JET-SNAKE – CUTTER INSPECTION AND CLEANING TOOL
• Automatic cutter head inspection tool• Automatic cutter head cleaning tool
ROBOTICS @ TUNNEL
DOBYDO & KROKODYL @ TBM SEGMENT ERECTION ATLAS @ TBM SEGMENT ERECTION ENHANCED ROBY850
NEW ROBOTICS TO COME
DOBYDO & KROKODYL @ TBMRING BUILD
One Robot to:
• Dobydo : Pick and Place connector dowels on the segment at the latest stage in the segment feeding.
• Krokodyl : Evacuate supporting wood in interface between segment, and store them in a dedicated location on TBM Back-up.
Dobydo Krokodyl
ROBY @ ANCHOR
ROBY 850 - AUTOMATIC ROBOT TO DRILL / CLEAN HOLES, AND INSTALL ANCHORS1. Ergonomy & safety
• Access at height not required
• Equipped with a dust vacuum device
2. Productivity• Repetability• 4 min for drilling + anchor installation
3. Quality• Tolerances (mm)
Sydney NorthConnex (Australia)
INT’L AWARD@ TELEMACH
<< TELEMACH >>
ITA TUNNELING AWARDS 2017 SAFETY INITIATIVE OF THE YEAR – WINNER
RECENT INT’L AWARD @ HK PROJECT
MAJOR PROJECT OF THE YEAR – ITA TUNNELING AWARD 2019 WINNER : HYD TMCLK TUNNEL
TUNNELLING PROJECT OF THE YEAR – NCE TUNNELING AWARD 2019 WINNER : CEDD LIANTANG TUNNEL
INNOVATION IN DESIGN AND DELIVERY OF THE YEAR – NCETUNNELING AWARD 2019 – WINNER : HYD TMCLK TUNNEL
TUNNELLING TEAM OF THE YEAR – NCE TUNNELING AWARD 2019 –WINNER : HYD TMCLK TUNNEL
RECENT INTERNATIONAL RECOGNITION FOR HONG KONG PROJECTS