Chennai Metro TBM ‘Flamingo’ Awaits CRS Nod
RAILWAYS & METRO RAIL

Chennai Metro TBM ‘Flamingo’ Awaits CRS Nod

Chennai Metro Rail’s tunnel boring machine (TBM) Flamingo, currently drilling from Light House, will reach Thirumayilai MRTS station only after receiving approval from the Commissioner of Railway Safety (CRS), ensuring the safety of nearby structures.

The Phase II project of Chennai Metro Rail includes three corridors: Madhavaram–SIPCOT (Corridor 3), Light House–Poonamallee (Corridor 4), and Madhavaram–Sholinganallur (Corridor 5). Several stations along these corridors intersect with suburban railway lines, MRTS stations, and Phase I metro lines. Thirumayilai is a key location where the Phase II station is being integrated with the MRTS station.

According to Chennai Metro Rail (CMRL) officials, CRS approval is required because the TBM will pass in close proximity—within 10 metres—of the pile structures of the Thirumayilai MRTS station. Flamingo has to cover a 1.96 km stretch from Light House to Thirumayilai and is currently 94 metres away from the station, awaiting the breakthrough.

Before the approval is sought, IIT Madras will conduct simulations to evaluate potential soil settlement and structural impact near the MRTS piles. The study will determine whether the settlement remains within permissible limits and will also recommend a safe drilling speed for Flamingo.

“Safety is our priority. Once the simulations confirm stability, the TBM can safely complete the tunnel breakthrough at Thirumayilai,” an official said.

This careful planning ensures the Phase II corridor integrates seamlessly with the MRTS network, paving the way for improved connectivity across Chennai.

News source: The Hindu

Chennai Metro Rail’s tunnel boring machine (TBM) Flamingo, currently drilling from Light House, will reach Thirumayilai MRTS station only after receiving approval from the Commissioner of Railway Safety (CRS), ensuring the safety of nearby structures.The Phase II project of Chennai Metro Rail includes three corridors: Madhavaram–SIPCOT (Corridor 3), Light House–Poonamallee (Corridor 4), and Madhavaram–Sholinganallur (Corridor 5). Several stations along these corridors intersect with suburban railway lines, MRTS stations, and Phase I metro lines. Thirumayilai is a key location where the Phase II station is being integrated with the MRTS station.According to Chennai Metro Rail (CMRL) officials, CRS approval is required because the TBM will pass in close proximity—within 10 metres—of the pile structures of the Thirumayilai MRTS station. Flamingo has to cover a 1.96 km stretch from Light House to Thirumayilai and is currently 94 metres away from the station, awaiting the breakthrough.Before the approval is sought, IIT Madras will conduct simulations to evaluate potential soil settlement and structural impact near the MRTS piles. The study will determine whether the settlement remains within permissible limits and will also recommend a safe drilling speed for Flamingo.“Safety is our priority. Once the simulations confirm stability, the TBM can safely complete the tunnel breakthrough at Thirumayilai,” an official said.This careful planning ensures the Phase II corridor integrates seamlessly with the MRTS network, paving the way for improved connectivity across Chennai.News source: The Hindu

Related Stories

Gold Stories

Next Story
Infrastructure Energy

Asian Energy Services Q1 FY27 PAT Rises 129 Per Cent

Asian Energy Services Limited reported a 129 per cent year-on-year rise in net profit to Rs 128 million for Q1 FY27, compared with the corresponding quarter last year.Revenue increased 135 per cent year-on-year to Rs 2.71 billion, supported by continued momentum across its services business, disciplined execution and contributions from domestic and international operations. EBITDA grew 81 per cent year-on-year during the quarter.As of June 30, 2026, the company’s standalone order book stood at Rs 17.54 billion, with around 60 per cent coming from oil and gas services and 40 per cent from min..

Next Story
Infrastructure Urban

BioBTX to Build First Commercial-Scale Circular Chemicals Plant

Dutch circular chemistry technology developer BioBTX is building what it says will be the world’s first commercial-scale plant to convert mixed plastic waste into high-quality aromatic chemicals using its proprietary Integrated Catalytic Cracking Process (ICCP) technology.The facility will be built at Chemical Park Delfzijl on the northern coast of the Netherlands and is expected to create 35 jobs. Covestro, which has been a shareholder and strategic partner of BioBTX since 2024, holds a mid-single-digit million-euro investment in the company.BioBTX’s ICCP technology uses catalytic pyrolys..

Next Story
Real Estate

Awfis Q1 FY27 PAT Jumps 140% as Revenue Rises 27%

Awfis Space Solutions reported a 140 per cent year-on-year rise in consolidated profit after tax (PAT) to Rs 240 million for Q1 FY27, compared with Rs 100 million in the corresponding quarter last year.Revenue from operations increased 27 per cent to Rs 4.25 billion from Rs 3.35 billion, while EBITDA rose 28 per cent to Rs 1.62 billion. EBITDA margin improved to 38.2 per cent from 37.8 per cent. Profit before tax increased 135 per cent to Rs 240 million.The company's co-working business recorded 27 per cent year-on-year growth, supported by demand from enterprises, Global Capability Centres (G..

Advertisement

Subscribe to Our Newsletter

Get daily newsletters around different themes from Construction world.

STAY CONNECTED

Advertisement