TUNNEL EXPERT
Govt to revamp SOPs for tunnel construction to prevent Silkyara tunnel-like mishaps
The National Highways and Infrastructure Development Corporation Ltd (NHIDCL) is constructing the Silkyara-Barkot tunnel through Hyderabad-based Navayuga Engineering Company Ltd. The tunnel is a single-tube tunnel divided into two inter-connected corridors by a partition wall. Each inter-connector corridor can work as an escape passage for the other. The 4.5 kilometre-long tunnel project in Uttarakhand, which is part of the centre's 900 kilometre-Char Dham Yatra all-weather road, aims to improve connectivity to the four pilgrimage sites.
Experts worried Israel could flood Gaza tunnels
Israel has reportedly started to test a plan to flood Hamas's sprawling tunnel network, but experts say it is a dangerous option that poses huge risks to Gaza's besieged civilians.takes a look at Hamas's tunnel network and Israel's bid to destroy it.
Uttarakhand tunnel: Australian tunnelling expert Arnold Dix calls 41 rescued workers his "adopted Indian sons"
The emotional proclamation came after Prime Minister Anthony Albanese publicly commended Dix for his pivotal role in the miraculous rescue mission.
Plans afoot to rope in experts from IITs for tunnel audit team
This will include forming an audit team with experts from various IITs and setting up a world-class tunnelling centre under IIT Delhi to research and propose enhanced safety measures for tunnels that are benchmarked to international levels, the people said. They added that the move is aimed at preventing recurrence of mishaps like the recent Silkyara tunnel collapse in Uttarakhand in future.
'Feeling very relaxed and happy…': Expert Arnold Dix after tunnel rescue
New Delhi: After the successful evacuation of all 41 workers who were trapped inside Uttarakhand's Silkyara tunnel for 17 days, International tunnelling expert Arnold Dix on November 30 shared his happiness and appreciated the National agencies for their cooperation. Arnold Dix...
Meet Arnold Dix, the international expert who helped rescue 41 workers trapped in Uttarkashi tunnel
Dix, who is the president of the International Tunnelling and Underground Space Association, specialises in underground and transportation infrastructure, from construction risk to more technical issues associated with the actual safety performance from an operational safety perspective.
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Silkyara Tunnel Crash: Auger machine fails again; experts stop providing rescue deadline
Vertical drilling may start in the "next 24 to 36 hours" as machines are being placed on a platform on top of the tunnel, he said. About 86 meters of vertical drilling is needed to reach the crust of the tunnel, and thereafter it will be broken to reach the trapped workers, he explained.
Auger machine broken; options of vertical, manual drilling being considered: Tunnel expert Arnold Dix
The auger machine was facing repeated obstructions in the rubble in the past few days.
Uttarkashi tunnel disaster: Expert panel's observations point to weak shear zone
The Uttarakhand tunnel disaster was caused by a 'shear zone' situation, with no escape route or piped passage in place. The tunnel collapsed on November 12 and an expert committee was established on November 14. The 'shear zone' likely missed during inspections before drilling began. The 4.531 km '2-Lane bi-directional Silkyara bend-Barkot tunnel with escape passage' was approved in February 2018 to provide 'all weather connectivity' to Yamunotri, part of Uttarakhand's Chardham Yatra.
Uttarakhand rescue ops: "It's like we're there, knocking at front door" says tunnelling expert Arnold Dix
International tunnel expert Arnold Dix, assisting in the rescue of 41 workers trapped in the Silkyara tunnel, reported significant progress, likening the operation to being at the "front door" of the trapped workers. The workers have been trapped since November 12, and efforts involve drilling through debris to create an exit for them.
Men are coming home for sure: International tunnel expert Arnold Dix as Uttarkashi Tunnel rescue op continues
Rescuers managed to insert an endoscopy camera into the tunnel and first visuals captured showed the 41 workers had ample space inside the tunnel for them to move about. Visuals of workers trapped inside Uttarkashi's Silkyara tunnel for the past 10 days emerged on Tuesday morning, has given new hope to worried relatives, some of whom are camping outside the site of the collapsed tunnel structure.
Uttarakhand tunnel collapse: Must keep trapped workers' morale up, says PM; foreign expert visits site
In a statement by the Uttarakhand Chief Minister's Office (CMO), PM Modi said that Central Government is providing the necessary rescue equipment and resources and that the workers will be evacuated safely with mutual coordination between centre and Uttarakhand government. The PM added that there is need to maintain the morale of the stranded workers.
"We are going to get them out," International Tunnelling expert Arnold Dix says after arriving at Uttarkashi tunnel collapse site
Arnold Dix, President of the International Tunnelling and Underground Space Association, arrived at the Uttarkashi site today and said they will get the 41 workers trapped at the Silkyara tunnel collapse site out. Renowned for his expertise in underground infrastructure, Dix specialises in construction risks, safety performance, and advises on underground construction hazards.
Micro tunneling expert, officials from PMO arrive at Silkyara tunnel site to monitor situation
Chris Cooper, a micro tunnelling expert, has arrived at the Silkyara tunnel incident site to monitor the rescue operation of 40 trapped workers. A heavy-duty drilling machine is expected to arrive from Indore today. Chief Minister Pushkar Singh Dhami is holding a meeting with senior officials to review relief and rescue operations.
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