Page 58 - CO April 2017 Full Issue

case study COVER STORY Powered by ORGANISED BY: CO-ORGANISED BY: 14 - 16 September 2017 Bombay Exhibition Centre, Goregaon (E) - Mumbai, India www.thebig5constructindia.com Bangalore fanfare marks final breakthrough for Robbins EPB Highly anticipated photo finish wraps up tunneling at massive metro MEET INDIA'S On September 28, 2016, Bangalore’s last Contractor Coastal Projects Ltd. (CPL) directly on the alignment. Difcult ground TBM for the city’s metro rail project provided a team of people including frequently prevented proper pressurization SERIOUS BUYERS broke through, marking the end of TBM surveyors, QC engineers, during cutting tool replacement, requiring a tunneling on the Namma Metro phase 1. and loco operators who grout solution to be pumped in to fll voids Te Robbins-operated machine, known as reported directly to our and lef to cure. Initially the curing process AT THE LEADING “Krishna”, bored a 750 m (2,460 f) drive site management team,” took up to 36 hours, but with improved through challenging conditions between explained Jim Clark, application methods this was reduced to Chickpet and Majestic stations. Cleanup Projects Manager for a 12-hour curing time. Another challenge CONSTRUCTION EXHIBITION and final commissioning of the tunnel Robbins India. involved the sensitive building structures C will be completed in 2017, and is the last along the tunnel path. Issues with surface obstacle before owner Bangalore Metro OVERVIEW vibration, explained Clark, required that M Rail Corporation Ltd. (BMRCL) can Project Location: Bangalore, India cutter head speed be limited to 1.8 RPM Y open the Malleswaram-Majestic link. Te No. of Machines: 2 during the day shif and 1.2 RPM during CM I N INDI A TBM’s sister machine, “Kaveri”, completed Machine Type: EPB the night shif. Despite the obstacles, the a parallel tunnel in June 2016. TBM Diameter: 6.45 m TBMs advanced at rates of up to 50mm (2 MY Te success follows a gauntlet of challenges Tunnel Length: 7,400 m (2,460 ft) in)/min in highly weathered rock. CY THE BIG 5 REASONS TO EXHIBIT: on the two tunnel sites. Due to severe delays Geology: Mixed geology consisting of soil, “Tis is an industry frst, wherein a TBM CMY on the original tunnel drives, Robbins was highly weathered granite, and fresh granite manufacturer has utilized their in-house K approached and asked to take over the Contractor: Coastal Projects Ltd. expertise and knowledge to take on this level operations of the remaining two competitor- Project Owner: Bangalore Metro Rail of responsibility for a project,” said Clark, GENERATE NEW LEADS GROW YOUR BUSINESS ACCESS THE LOCAL MARKET manufactured TBMs in February 2015. Corporation, Ltd. (BMCRL) addressing the magnitude of the successful 74% BUYING POWER US$126 BN 75% SUCCESS Afer obtaining agreement from the project breakthroughs. “Te fact that it was ‘a frst’ 2016 EXHIBITORS WHO EXHIBITED TO VALUE OF THE INDIAN owner and the contractor, Robbins took SCOPE OF WORK: and we were successful in bringing this 2016 VISITORS WHO HAD PURCHASING CONSTRUCTION SECTOR PROMOTE THEIR COMPANY IN THE RESPONSIBILITY FOR THEIR COMPANY over the responsibility for all aspects of the Te Robbins crew carried out tunneling high-profle project back on track is a great COUNTRY underground operations. “We provided operations while the Chickpet station was achievement for Te Robbins Company.” a team of over 60 staff including TBM being constructed around them to mitigate Now that tunneling is complete, the North operators, TBM technicians, ring builders, delays incurred before they took over project and South runs of the Namma metro will be a grouting team, and more. We were also operations. The project’s most difficult connected--a line that, once in service, will responsible for running surface installations challenges included a low overburden and carry an estimated 40,000 passengers daily. EXPANDED EXHIBITOR PROFILES SECURE NEW CONTRACTS rd and equipment such as the grout batching unconsolidated ground along the alignment, It is anticipated that Phase One of the metro 6 PRODUCT CA TEGORIES 3 LARGEST plant, gantry cranes and power supply. and the discovery of several uncharted wells will be opened in its entirety in 2017. ACCESS THOUSANDS OF KEY CONSTRUCTION INDIA’S CONSTRUCTION BUYERS IN YOUR DEDICATED PRODUCT SECTORS MARKET BY 2025 HIGHLIGHTS On September 28, 2016, a Robbins-operated EPB wrapped up tunneling at Bangalore, India’s Namma Metro. The TBM’s sister machine completed tunneling in June 2016. Robbins took over the responsibility on all aspects of the underground operations for two competitor-manufactured EPBs in SPACE IS RUNNING OUT, ENQUIRE ABOUT EXHIBITING TODAY. February 2015. The success follows a gauntlet of challenges, from low overburden and unconsolidated ground to voids that prevented proper pressurization during cutter head interventions. LOCAL SALES INTERNATIONAL SALES Robbins Field Service guided the machine through the challenges, achieving rates of up to 50 mm (2 in) per minute. SHAURAV PANDEY ERIC CHAN Now that tunneling is complete, owner BMRCL will perform cleanup and final commissioning for the new rail link, which will go T: +91882624663 T: +971443800355 online in 2017. u E: Shaurav.pandey@ficci.com E: ericchan@dmgeventsme.com 60 construction opportunities|aPrIL 2017