Foreseen Challenges in Underground Tunneling for Mumbai Metro Line 3
Foreseen Challenges In Underground Tunneling For Mumbai Metro Line 3 S.K.GUPTA Director (Projects)/MMRCL 25.05.2018 CONTENTS OF PRESENTATION • Project Route • Project Overview • Challenges • MML – 3 Geology, Mumbai • Technical challenges • NATM • TBMs selection • Building Condition • Monitoring • Quality Assurance PROJECT ROUTE PROJECT ROUTE Fully Underground • Length: 33.5 Km • Stations: 27 (26 U/G + 1) • Completion Cost: US$ 3.5 Billion • Phase 1: SEEPZ to BKC- June 2021 Phase 2: BKC to Cuffe Parade- Dec 2021 2021 2031 Ridership 1.22 Million 1.70 Million Headway 4 min, 16sec 2 min, 55 sec (CP-BKC) 256 sec 175 sec Coaches 248 (31 x 8 336 (42 x 8 cars) cars) PROJECT OVERVIEW PROJECT OVERVIEW(CIVIL WORKS) Contract Packages – Civil Works Packag Length Stations Limits e No. (K.M.) Cut & Cover NATM Cuffe Parade, Vidhan Bhavan, Hutatma Chowk 1 Cuffe Parade to CST 4.20 Churchgate C.S.T. Kalbadevi, Girgaoan, 2 CST to Mumbai Central 4.05 Grant Road Mumbai Central, Mahalakshami, 3 Mumbai Central to Worli 5.06 Science Museum, Acharya Atre - Chowk, Worli Siddhi Vinayak, Dadar Shitaladevi 4 Worli to Dharavi 6.08 5 Dharavi to Santacruz 4.94 Dharavi, B.K.C., VidyaNagari Santa Cruz Santacruz to CSIA CSIA Domestic, Sahar Road, 6 4.45 - (International) CSIA International Airport CSIA (International) to MIDC, SEEPZ Marol Naka 7 4.16 SEEPZ Total Length of the Corridor 33.5 CHALLENGES The Mumbai city will see such a big scale infrastructure intervention, spanning 33.5 km in the city for the first time in recent history. The project poses number of challenges: Administrative Geological Technical Logistics etc.
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