Tata Projects Limited has commissioned a tunnel boring machine (TBM) S98 for third breakthrough for package TU-01 at Purasaiwakkam station under the Chennai metro rail project phase II.
Package TU-01 involves the construction of approximately 9 km long twin bored tunnels from TBM retrieval shaft near Venugopal Nagar metro station to Kellys metro station and construction of diaphragm walls of station box and entry/exit structures of Madhavaram Milk Colony, Murari Hospital, Ayanavaram and Purasaiwakkam High Road stations, including launching and retrieval shafts as required in the above metro stations. Tata Projects Limited was awarded the contract for the same in May 2021.
The project involves development of 118.9-km three metro corridors (corridor III, IV and V) in Chennai, Tamil Nadu. It is mostly underground with elevated section confined to few short stretches and consists of 128 stations in total. The work on corridors I and II have been completed under Chennai metro phase-I.