Chennai Metro's TBM S81B Achieves Breakthrough

04 Sep 2024 CW Team

Tata Projects Ltd. achieved another milestone as TBM S81 B, nicknamed Kolli, made a breakthrough at Otteri station on Line 3 of the 116.1km Chennai Metro Phase 2. In July 2023, Tata Projects had deployed TBM Kolli on the south shaft of Ayanavaram Station on the 45.8km Line 3 (Mandharam station to Siruseri SIPCOT). After covering approximately 903m, TBM Kolli reached Otteri station within 13 months.

Kolli, a Terratec Earth Pressure Balance (EPB) machine, with a 06.61km reach, faced over 100 bore wells during excavation and had to navigate two sharp curves with radii of 220m and 280m to avoid disruptions.

Previously, TBM S18, after its first breakthrough in Pune Metro, passed its Factory Acceptance Test (FAT) in December 2022 before being deployed in Chennai Metro Phase 2. The current task involving TBM Kolli falls under Package TU-01, which was awarded to Tata Projects by Chennai Metro Rail Ltd. (CMRL) in May 2021 with a 42-month deadline. The total cost of the project is ?1999 crore.

Package TU-01 covers a 9km section on Line 3 of Chennai Metro Phase 2. TBM Kolli, along with six other TBMs under this package, is tasked with constructing a 9km twin tunnel (totalling 18km) from the TBM retrieval shaft near Venugopal (Line 5) to Kelly station (Line 3) and constructing diaphragm walls and entry and exit structures at four stations. So far, Tata Projects Ltd. has recorded six tunnel breakthroughs under Package TU-01.

Real Estate

26 Jun 2026

AGM Vijaylaxmi launches Sixty3 W.E. Bizpark

AGM Vijaylaxmi Group has launched Sixty3 W.E. Bizpark, a mixed-use commercial development in Goregaon East, Mumbai. The project includes contemporary office spaces and a high-street retail component designed to support businesses, retailers and professionals.Located along the Western Express Highway, Sixty3 W.E. Bizpark is planned as a G+25-storey commercial tower. It offers office spaces ranging from 545 sq ft to 3,200 sq ft, with a 3.60 metre floor-to-floor height aimed at improving spatial comfort, natural light and operational efficiency.The project features a high-street retail boulevard ..

Manglam Group to Develop Sheraton Hotel in Jaipur

Manglam Group has signed an agreement with Marriott International to develop a Sheraton hotel on the Jaipur–Ajmer Highway in Jaipur. The project will feature 220 keys and is being developed with an investment of around Rs 3.5 billion across more than 300,000 sq ft.The hotel marks Manglam Group’s third collaboration with Marriott International and forms part of its Rs 10 billion hospitality investment roadmap. The agreement was signed by Amrita Gupta, Director, Manglam Group and CEO, Manglam Spa and Resorts, and Rajeev Menon, President, Asia Pacific excluding Greater China, Marriott Interna..

India Warehousing Show 2026 opens at YashoBhoomi

India's warehousing, logistics, and supply chain ecosystem came together as the 15th edition of India Warehousing Show (IWS) 2026 opened at YashoBhoomi, India International Convention & Expo Centre (IICC), Dwarka, New Delhi on June 25 (Thursday). Organised by RX India, the three-day event will run from 25-27 June 2026, bringing together policymakers, industry leaders, technology providers, and supply chain professionals under one roof. It also features a two-day knowledge conference that will run alongside the exhibition. Inaugurated by Pankaj Kumar, Joint Secretary - Logistics, DPIIT..