National
Bullet Train project's 21-km tunnel, terminus work proceeds swiftly in Maha
Mumbai, Feb 8 (IANS) The works on the Mumbai-Ahmedabad Bullet Train project’s terminus at Bandra Kurla Complex and a key 21-km underground-undersea tunnel work, wrought with challenges, are progressing satisfactorily, National High Speed Rail Corporation Ltd., an official said here on Thursday.
The 21-km long single-tunnel, including 7 km running under-sea, with two lines is coming up between Bandra Kurla Complex and Shilphata in Thane.
Work is currently on for three shafts en route for the tunnel section at Bandra Kurla Complex, Vikhroli, Sawli, Shilphata and an Additional Driven Intermediate Tunnel portal.
The shaft 1 is coming up at the Mumbai High Speed Railway Station in Bandra at a depth of 36 metres where 100 per cent secant piling work is completed and excavation work is underway. The shaft 2 at Vikhroli is at a similar depth of 36 metres, with 100 per cent piling work done and excavation work is on.
These shafts shall be used to lower two tunnel boring machines (TBMs) in opposite directions – one which will bore towards the BKC and the other towards Ghansoli.
The 39 metres deep shaft 3 in Sawli (near Ghansoli) excavation work is on, while at Shilphata, the tunnel end, portal work has begun at the site.
The tunnel will be dug by three TBMs with a cutter head diameter of 13.6 metres — usually 5-6 meter diameter cutter heads are deployed for digging urban tunnels as in the Mumbai Metro systems.
Three TBMs will be used to make around 16 kms of the tunnel, while the remaining 5 km shall be dug through New Austrian Tunnelling Method (NATM).
The tunnel will be around 25-27 metres deep from the ground level, with the deepest point at 114 metres below the Parsik Hill near Shilphata.
The three shafts of BKC, Vikhroli and Sawli shall be at depths of 36, 56 and 39 metres, the inclined shaft of 42 metres at Ghansoli and at Shilphata will facilitate the construction of a 5 km tunnel through the NATM method.
Besides, the Additional Drive Intermediate Tunnel (ADIT) portal is also coming up which will facilitate an additional access to the tunnel for faster construction activity.
The NHSRCL engineers are grappling with multiple challenges to speed up and make the showpiece — Prime Minister Narendra Modi’s dream project, work on which started in September 2017 — into a reality.
The work entails controlled multiple blasting with sufficient noise-air pollution control measures to cause minimal disturbances to the environment and population in the adjoining areas.
The shafts are being dug in areas with high population density and adjoining utilities like various pipelines, electrical installations, other neighbouring infrastructure projects like metros, highways, flyovers, etc.
“We are ensuring that the work is carried out with least disruption to these. The disposal of the huge quantities of excavated materials is done with the supervision of Maharashtra Pollution Control Board, with each trip approved and GPS tracked,” said an official. Other facilities like Gantry Cranes, labour force colonies, site offices and other requirements are also being built in tandem with the bullet train.
The single-tube tunnel has 39 equipment rooms at 37 spots shall be constructed adjoining the tunnel location.
Around 4.8 hectares of land for the Bullet Train terminus at BKC Station has been handed over by NHSRCL to the contractors to build the station with the ‘bottom-up method’.
This implies that the excavation work of at least 32 metres depth will commence from the ground level and concrete work will be taken up from the foundation.
The deep excavation involves around 18 lakh cubic metres for which a suitable ground support system has to be constructed to prevent the soil from collapsing.
This involves constructing 3,382 secant piles, each ranging from 17 to 21 metres in depth, all of which are in place and the excavation in the station area has begun, and around 1.5 lakh cubic metres of the earth is already removed and disposed off.
Currently, teams of around 681 workers and supervisors are toiling at the project sites round the clock, and as the project advances, it may touch upto 6,000 people daily during peak times.
(Quaid Najmi can be contacted at: q.najmi@ians.in)
–IANS
qn/pgh
National
Defence Ministry: Year 2025 will be year of reforms
On Wednesday, the Defence Ministry announced that 2025 will be designated as the “Year of Reforms,” with a primary focus on establishing integrated theatre commands to enhance collaboration among the three branches of the military.
These reforms are aimed at transforming the armed forces into a technologically advanced, combat-ready force capable of executing multi-domain integrated operations, the ministry stated.
The initiative will emphasize emerging domains such as cyber and space, alongside cutting-edge technologies like artificial intelligence, machine learning, hypersonics, and robotics.
Defence Minister Rajnath Singh described the “Year of Reforms” as a pivotal milestone in the modernization of the armed forces.
“It will set the stage for significant advancements in the nation’s defense capabilities, ensuring the security and sovereignty of India in the face of 21st-century challenges,” he said.
National
A 3.2 magnitude tremor struck Gujarat’s Kutch district on Wednesday morning
A 3.2 magnitude tremor struck Gujarat’s Kutch district on Wednesday morning, according to the Institute of Seismological Research (ISR).
The district administration reported no casualties or property damage following the quake.
The tremor occurred at 10:24 am, with its epicenter located 23 kilometers north-northeast (NNE) of Bhachau, as per the Gandhinagar-based ISR.
Last month, the region experienced four seismic events exceeding a magnitude of 3, including a 3.2 magnitude tremor just three days ago, with its epicenter also near Bhachau.
Earlier tremors in the area included a 3.7 magnitude earthquake on December 23 and a 3.2 magnitude event on December 7, according to ISR reports.
Kutch was also jolted by a 4.0 magnitude earthquake on November 18, 2024. On November 15, a 4.2 magnitude quake hit Patan in north Gujarat, based on ISR data.
Gujarat is considered a high-risk earthquake zone, having experienced nine major earthquakes over the past 200 years, according to the Gujarat State Disaster Management Authority (GSDMA). The 2001 earthquake in Kutch, which occurred on January 26, was the third-largest and second-most destructive in India in the last two centuries, according to the GSDMA.
National
Diljit Dosanjh faces legal action over concert songs
Singer and actor Diljit Dosanjh’s much-anticipated New Year’s Eve concert in Ludhiana faced legal hurdles after a complaint was filed by Punditrao Dharenavar, an assistant professor from Chandigarh.
Following the complaint, the Deputy Director of the Women and Child Department, Government of Punjab, issued a formal notice to Ludhiana’s District Commissioner, urging them to prohibit Dosanjh from performing specific songs during his live show on December 31, 2024.
The notice specifically targets songs accused of promoting alcohol, including Patiala Peg, 5 Tara Theke, and Case (Jeeb Vicho Feem Labbiya), even if the lyrics are slightly modified. The complaint points to previous warnings issued to Dosanjh by various commissions advising against performing these controversial tracks.
Despite these warnings, the singer allegedly continues to perform the songs with minor alterations. Dharenavar raised serious concerns about the influence of such music on young audiences, especially when minors are present at live events.
Adding to the controversy, Dharenavar referenced a 2019 Punjab and Haryana High Court ruling, which directed law enforcement to ensure that songs promoting alcohol, drugs, or violence are not played at public events, including concerts. This ruling underscores the legal basis for the complaint and has further intensified the scrutiny surrounding the event.
National
UP Minister’s convoy overturns, 5 person injured
Five people sustained injuries when a vehicle in the convoy of Uttar Pradesh Minister and Nishad Party chief Sanjay Nishad overturned into a ditch near Januan village in the Khejuri Police Station area of Ballia district late last night.
Sanjay Nishad shared details of the incident, stating that the accident injured five party workers, including four women.
“I was traveling with the convoy to participate in the Constitutional Rights Yatra organized by the party on Tuesday night. Near Januan village in the Khejuri area, one of the vehicles following the convoy lost control while trying to avoid an animal and overturned into a ditch,” Nishad explained.
The injured individuals have been identified as Rakesh Nishad, Ramrati, Usha, Geeta, and Iravati Nishad.
Senior police and administrative officials quickly arrived at the scene following the incident to oversee the situation.
National
Suchir Balaji’s mother alleges Murder
The mother of Suchir Balaji, a 26-year-old former OpenAI researcher found dead after accusing the company of copyright violations, has alleged that her son was “murdered” and called for a Federal Bureau of Investigation (FBI) probe.
Poornima Rao, Suchir’s mother, claimed her son’s death was a “cold-blooded murder” that authorities wrongly ruled as suicide. She further disclosed that a private autopsy report conflicted with the findings of the initial police investigation.
Rao alleged that her son’s apartment had been “ransacked” and cited evidence of a struggle in the bathroom, including bloodstains that suggested he had been assaulted.
“We hired a private investigator and conducted a second autopsy to uncover the truth. The private autopsy does not confirm the cause of death stated by the police. Suchir’s apartment was ransacked, there were signs of a struggle in the bathroom, and it appears he was hit based on blood spots. This is a cold-blooded murder being misclassified as a suicide. Lobbying in San Francisco won’t deter us from seeking justice. We demand an FBI investigation,” Rao wrote on X.
Elon Musk reacted to Rao’s post, commenting, “This doesn’t seem like a suicide.”
Balaji was discovered dead in his San Francisco apartment months after accusing OpenAI of violating copyright laws during the development of ChatGPT, as reported by Fox News. Despite these claims, the San Francisco Police Department found no evidence of foul play and ruled the death a suicide.
On October 24, shortly before his death, Balaji voiced doubts about the “fair use” defense in generative artificial intelligence. “I recently participated in a NYT story about fair use and generative AI, and why I’m skeptical ‘fair use’ would be a plausible defense for a lot of generative AI products,” he wrote on X.
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