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India is on the edge of achieving a historic milestone in the infrastructure development expedition with the incredible construction of its First undersea tunnel, which is the main highlight of the Mumbai to Ahmedabad high-speed rail corridor. Significantly, this stunning undersea tunnel is 7 kilometers long and is a vital part of the large 21 km tunnel connecting the Bandra Kurla Complex Station in Mumbai to Shilpata. Thus, the Mumbai - Ahmedabad Corridor is indispensable in facilitating the upcoming bullet trains that can travel at 250 km/h, an extraordinary jump over the country's transportation technology. Besides that, the tunnel will construct two parallel tracks, which depicts the advancement in transportation technology, and it is being developed utilizing the latest technologies such as Tunnel Boring Machines (TBM), the New Austrian Tunneling Method (NATM)
Consequently, the construction project of the undersea tunnel for the Mumbai-Ahmedabad High-speed Rail (MAHSR) Corridor is also well known as the Bullet train project, which is currently ongoing. On the other hand, the MAHSR was launched by the National High-Speed Rail Corporation Limited (NHSRCL), an entirely owned subsidiary of Indian Railways, the Ministry of Railways, and the Government of India. Mumbai - Ahmedabad Bullet Train is currently constructed using popular Japan Shinkansen technology to handle rolling, stock, signaling, and design standards to reinforce the Make in India Programme.
The undersea tunnel consists of a 21 km-long stretch between the two underground stations, Mumbai’s Bandra-Kurla Complex and Shilphata in Maharashtra. This incredible infrastructure will reduce the travel time between Mumbai and Ahmedabad to nearly 2.5 hours. It will also enhance route connectivity, economic integration, and regional urban growth. Tunnel works on 16km will be executed through boring machines, and the enduring 5km will be done using the New Austrian Tunneling Method (NATM).
On Saturday,.Indian Railway Minister Ashwini Vaishnaw visited the construction site to inspect the tunnel's progress and emphasized that the project was constructed with the highest safety standards. Ashwini Vaishnaw stated, " All high-quality safety norms have been adapted in the construction of this India's First carefully designed undersea tunnel project". In addition, he noted that the technology used to construct the tunnel made it possible for two trains to pass through at speeds of 250km per hour.
Thus, to accomplish this, the engineers also take care of the environment with appropriate ventilation and lighting. The undersea tunnel bullet train project, which marshals Prime Minister Narendra Modi's vision for affordable and fast transportation, contemplates innovative changes to cities and routes.
In addition, the stations and the corridor will boost urban development and enhance productivity by significantly reducing travel time. Before the bullet train project, India had not seen any speed train transportation project, so it would not only integrate the economy but also help boost the infrastructure and economic growth.
According to the NHSRC reports, construction of the undersea corridor has already begun at the Additionally Driven Intermediate Tunnel (ADIT) portal. A 394-meter-long tunnel has already been completed, and a module of construction access and emergency evacuation makes an outstanding milestone focusing on safety and efficiency.
The ongoing exceptional Bullet Train in India project has an impressive stretch of 508km, including approximately 12 strategically placed stations, and the most significant stations of the routes are Mumbai, Thane, Surat, and Ahmedabad, which contributes to elevating connectivity and urban development. Therefore, the project's highlight is the Bandra Kurla Complex Station, an architectural wonder as it has ten underground and seven above-ground levels and represents modern engineering excellence. It will also depict India's vision to develop world-class infrastructure to meet the upcoming urban demands.
The total project cost of the Mumbai to Ahmedabad Corridor is estimated at INR 1.08 Lakh crores. The Japanese support tunnel design and construction to achieve their vision of affordable and fast transportation; however, the project's spotlight is the undersea tunnel home to twin tracks. Thus, 39 equipment rooms have been designed at 37 locations along the tunnel to ensure systematic operations. Despite that, the officials also state that the Mumbai to Ahmedabad underwater sea tunnel is designed accordingly so that the bullet trains run at a constant higher speed as compared to the under-river tunnels of Kolkata Metro.
The tunnel perfectly symbolizes India's vision of innovation. In addition to transportation, the project aims to generate more economic development. It will also enhance route connectivity, reduce total travel time, allow daily commuters to be flexible, and help businesses operate more efficiently to promote growth and productivity.
India's first undersea tunnel to revolutionize the high-speed rail project depicts the focal point of officials' efforts to promote sustainability and technological evolution. India has been adapting eco-friendly construction practices for the undersea tunnel project to minimize the environmental impact while maximizing efficiency. Combining modern substances and techniques can lead to durability and safety, even in challenging situations. Consequently, this incredible project is a collaboration between India and Japan to jumble the pros of both nations' engineering expertise. There is no doubt that Japanese technology is well recognized for its precision and reliability, which is essential to the project's success. With this project, India is taking the initiative to reduce carbon emissions by promoting the use of public transport, as bullet trains are an environmentally friendly alternative to travel either by road or Air, and it is ready to show transformative potential for both cities.