APPLICATIONS OF DfMA AND ROBOTICS IN HONG KONG TUNNELLING WORKS

Ken KwokEngineering Director

A CASE STUDY OF DFMA IN HK – TUNNEL INTERNAL STRUCTURE

TUNNEL STRUCTURES

HOW TO BUILD……

HOW TO BUILD?

TUNNEL STRUCTURES @ WHAT WAY?

HOW TO BUILD……

SAFELY, IN GOOD QUALITY AND EXCELLENT PRODUCTIVITY

TUNNEL STRUCTURE @ BEFORE

TYPICAL ARRANGEMENT FOR SLAB CONSTRUCTION

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)

ROBOTIC APPLICATIONS IN TUNNEL CONSTRUCTION

ROBOTICS @ TUNNEL

TELEMACH

ROBOTICS USED IN HK

JET-SNAKE ROBY850

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

MANUAL PRACTICE @ TBM

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)

CONCLUSION

INT’L AWARD@ TELEMACH

<< TELEMACH >>

ITA TUNNELING AWARDS 2017 SAFETY INITIATIVE OF THE YEAR – WINNER

INT’L AWARD @ ROBY850

ITA TUNNELING AWARD 2018SAFETY INITIATIVE OF THE YEAR - WINNER

<< ROBY850 >>

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

CONCLUSION

- FOCUS ON USERS’ EXPERIENCE- RISK ON INNOVATION- INVESTMENT TO THE FUTURE

WE LOVE LIFE, WE PROTECT IT

THANK YOU