CHENNAI (Metro Rail News): The tunnel boring machines S97 and S98 arrived at Chennai Port in Tamil Nadu last week for the construction of Package TU01 of the 118.9 km Chennai Metro Phase 2 project.
Tata Projects Ltd. (TPL) will use both 6.61m earth pressure balance (EPB) machines made by Terratec in China along with 5 other TBMs to construct about 9 km twin tunnels (total 18 km) on the new 45.813 km Line-3’s Venugopal Nagar – Kellys segment.
This summer, both machines passed factory acceptance testing (FAT). TPL received its first machine, the TBM S96, back in July in Chennai’s Madharavam neighbourhood.
In May 2021, CMRL awarded TPL Phase 2’s Package TU-01 Rs. 1999 crore with a deadline of a 42-month.
Construction of approximately 9 km twin bored tunnels (total = 18 km) from the TBM Retrieval Shaft near Venugopal Nagar (of Line-5) to Kellys Station, and the construction of diaphragm walls, entry/exit structures of Madhavaram Milk Colony Station, Murari Hospital Station, Ayanavaram Station, and Purasaiwakkam High Road Station, including launching and retrieval shafts at the above stations are included in the scope of TU01.
