Latest news with #NewAustrianTunnelingMethod
Time of India
4 days ago
- General
- Time of India
Khurda Road-Balangir New Line Project: Tunnel breakthrough complete on key Odisha rail link, ET Infra
Advt The breakthrough of all seven tunnels along the 75-km stretch between Daspalla and Purunakatak of the Khurda Road-Balangir new line project has been completed. East Coast Railway (ECoR) sources said tunnel number 2 - measuring 1,775 metres with a 2-degree curve - is the second longest among the project's tunnels and was constructed using the advanced New Austrian Tunneling Method (NATM). The final breakthrough of the tunnel was completed on May 30."Constructing the tunnels in the hilly terrains amid several challenges is an achievement," said ECoR in a data revelaed that the total tunnel length of this new line project is 12.76 km. Nayagarh district has three tunnels while Boudh district has four tunnels.
India.com
27-04-2025
- Business
- India.com
Mumbai-Ahmedabad Bullet Train BIG Update, project likely to be completed by..., top speed to be...
New Delhi: The Mumbai-Ahmedabad bullet train project promises to give a major boost to India's transportation sector. The project is steadily progressing, bringing India's high-speed rail ambitions closer to reality. According to the reports, the project witnessed a significant milestones across Gujarat, Dadra & Nagar Haveli, and Maharashtra along the 508 km corridor. Out of the total length, 293 km of viaduct construction has been completed. Pier works now cover 375 km, while pier foundation work spans 394 km. Girder casting has reached 320 km, indicating strong momentum. Structural work is complete at six of eight planned stations in Gujarat, with track bed construction advancing along 143 km of the viaduct. More than 3 lakh noise barriers have been installed over a 150 km stretch to minimize operational noise. According to the reports, the river crossings have also seen rapid progress. Bridges across 14 rivers, including Par, Purna, Mindhola, and Ambika, are now completed. Additionally, seven steel bridges and five PSC (pre-stressed concrete) bridges have been built, boosting overall connectivity. Progress has been made on the tunnel work between Mumbai's Bandra Kurla Complex (BKC) and Shilphata. Approximately 3.3 km of tunneling has been completed using the New Austrian Tunneling Method (NATM). Additionally, the Vikhroli and Sawli shafts have reached significant depths of 56 meters and 39 meters, respectively. In Maharashtra's Palghar district, seven mountain tunnels are currently under construction. Work on Mumbai's bullet train station is gaining pace. Excavation for the base slab is around 75% complete, with 25,000 cubic meters of concrete already poured. Meanwhile, overhead equipment mast (OHE) installation has begun between Surat and Bilimora stations, covering approximately 2 km of viaduct. With this steady pace, the Mumbai-Ahmedabad Bullet Train — India's first — is on course to redefine travel with speed, efficiency, and world-class infrastructure.
India.com
22-04-2025
- General
- India.com
Mumbai-Ahmedabad Bullet train update: Noise barriers in....,fast-paced excavation..., Check full 508 km status
India's first bullet train project between Mumbai and Ahmedabad is moving ahead at a rapid pace. The National High-Speed Rail Corporation Limited (NHSRCL) has shared the latest progress on the 508-kilometer-long route. As of April 18, construction of viaducts elevated track structures has been completed on 293 kilometers of the route. Additionally, pier construction (supporting pillars) is done on 375 kilometers, and girder casting has been completed for 320 kilometers. NHSRCL also confirmed that bridges have been completed over all 14 rivers that fall along the route. Bullet train route The bullet train route crosses rivers in multiple districts, including: Paar, Kolak, and Auranga in Valsad Poorna, Ambika, Vengania, Kaveri, and Kharera in Navsari Mindhola in Navsari Moher and Mahi in Kheda Dhadar in Vadodara Vatrak in Kheda Kim in Surat In addition, seven steel bridges and five PSC (pre-stressed concrete) bridges are also completed. Noise barriers and track work in Gujarat: In Gujarat, NHSRCL is installing noise barriers along the viaducts to reduce sound pollution. So far, around 3 lakh (300,000) noise barriers have been put up along 150 kilometers of the route. Nearly 143 kilometers of track bed has been prepared in the state. Work is also underway to weld rail tracks and create 200-meter-long panels on the viaducts. Overhead Equipment (OHE) masts—used to carry power lines for the train—are being installed. Between the Surat and Bilimora stations, more than 100 OHE masts have already been set up, covering nearly 2 kilometers of the main viaduct. Mumbai–Ahmedabad Bullet Train Project: Key Updates Total Length: 508 kilometers Route Division: Gujarat + Dadra & Nagar Haveli: 352 km, Maharashtra: 156 km Total Stations: 12– Mumbai, Thane, Virar, Boisar, Vapi, Bilimora, Surat, Bharuch, Vadodara, Anand, Ahmedabad, Sabarmati Tunneling work in Maharashtra A 21-km-long tunnel is being constructed between BKC (Bandra-Kurla Complex) and Shilphata in Maharashtra. Using the New Austrian Tunneling Method (NATM), around 3.3 km of the tunnel has already been completed from both ends — Shilphata and Adit portal. Excavation has also progressed at other points: 56 meters deep at the Vikhroli shaft 39 meters deep at the Savli shaft In Palghar district, work is ongoing for seven mountain tunnels using the NATM method. Station work in Gujarat & Maharashtra In Gujarat, the structural work at six out of eight stations has been completed. In Maharashtra, construction has started at all three elevated stations. Mumbai Station Construction Base slab work is currently in progress at the Mumbai bullet train station. About 75% of the required excavation is complete (roughly 1.4 million cubic meters out of the total 1.87 million cubic meters needed). The base slab will be built at the deepest level of the station. Around 200,000 cubic meters of concrete will be needed just for the base slab. So far, 25,000 cubic meters of concrete has already been poured. Each base slab casting needs 3,000 to 4,000 cubic meters of concrete, which is being produced on-site using a batching plant and chiller plant to maintain the correct temperature.
Indian Express
21-04-2025
- Business
- Indian Express
Mumbai-Ahmedabad Bullet train: Station at BKC, 21-km underground tunnel see steady progress of work
The Mumbai-Ahmedabad Bullet train project is progressing steadily in Maharashtra, with major developments taking place at two key sites — the Mumbai station at the Bandra-Kurla Complex (BKC) and the 21-km underground tunnel running up to Shilphata from BKC. As per National High-Speed Rail Corporation Ltd (NHSRCL) officials, groundwork at the Mumbai station is now 75% complete, with 14 lakh cubic metres of soil dug out so far out of a total 18.7 lakh cubic metres. 'The casting for base slab for the station has already commenced with nearly 25,000 cubic metres of concrete already cast,' an official said. The overall concrete needed for this deep underground slab is likely to be approximately 2 lakh cubic metres. Secant piling — a method used to build strong retaining walls for underground constructions — has been completed, amounting to 3,384 piles at the station site. Besides, tunnelling between BKC and Shilphata is also progressing well, with 3.3 km of the tunnel heading completed. The 21-km tunnel will be a vital component of the high-speed rail corridor in the Mumbai Metropolitan Region (MMR). Of the 21 km, 16 km will be constructed through Tunnel Boring Machines (TBMs) and the last 5 km through the New Austrian Tunneling Method (NATM). At present, construction is going on from the Shilphata side and from two other tunnel faces at the Additionally Driven Intermediate Tunnel (ADIT) portal. 'The ADIT provides access to the tunnel for vehicles during construction and subsequently for operations and emergency evacuation,' the official added. Two vertical shafts at Vikhroli and Sawali have also reached their required depths of 56 metres and 39 metres, respectively. In Palghar district, work on seven mountain tunnels by NATM is also underway. In Maharashtra, work has moved at important points, while work in Gujarat is going on at an impressive pace. NHSRCL has completed 293 km viaducts, 375 km piers and foundations for 394 km. Girder casting has also been finished for 320 km. It has also finished building 14 river bridges in different districts of Gujarat and Dadra and Nagar Haveli. Moreover, seven steel bridges and five pre-stressed concrete (PSC) bridges have been constructed. Track infrastructure is also moving apace in Gujarat where NHSRCL has commissioned over 3 lakh noise barriers for 150 km and completed more than 143 km of track bed. As far as stations are concerned, structural construction has been done for six of the eight bullet train stations in Gujarat, and construction on all three elevated stations is in progress. The Mumbai- Ahmedabad High-Speed rail corridor will be 508 km long — 156 km in Maharashtra and 352 km in Gujarat and Dadra and Nagar Haveli. The Bullet train project, expected to be completed by the end of 2027, will reduce travel time from Mumbai to Ahmedabad to approximately two hours. NHSRCL is the executing agency for the project, which is being constructed with financial and technical assistance from Japan.
