Ray Of Hope: Visual Contact Established With 41 Trapped Workers In Uttarkashi Tunnel

Rescuers have finally made visual contact with the 41 workers trapped inside a collapsed tunnel in Uttarakhand's Uttarkashi district since nine days i.e November 12. An endoscopic flexi camera was inserted into the tunnel and showed the workers sitting huddled together, waving to the camera.

The first visuals of the trapped workers have brought a glimmer of hope to their families and friends, who have been waiting anxiously for their safe return.

A team of the National Disaster Response Force (NDRF) and the Indian Army has been working tirelessly since the collapse to rescue the workers. They have been drilling a hole into the tunnel from the top in an effort to reach them.

On Monday, they successfully pushed a six-inch-wide pipe through the rubble of the Silkyara tunnel, enabling the delivery of larger quantities of food and supplies to the trapped workers.

Prior to this development, a smaller four-inch pipe had been used to supply oxygen and essential items like dry fruit and medicines to the workers. The new, wider pipe will allow for the delivery of more substantial food supplies and potentially other necessities.

The authorities have devised a comprehensive five-option action plan to rescue the trapped workers. The Prime Minister's Office (PMO) is closely monitoring the situation in real-time, ensuring that all resources are effectively deployed. The plan involves drilling from three sides to access the trapped workers, with five different agencies assigned to specific tasks.

Two horizontal tunnels will be drilled from the right and left sides of the main tunnel, while a vertical shaft will be drilled from the top. Drones and robots from the DRDO (Defence Research and Development Organisation) have also been deployed to explore the possibility of alternative escape routes.

International expertise is also being tapped into. Arnold Dix, a renowned tunneling expert from Switzerland, has conducted an inspection at the tunnel site on Monday. Dix heads the International Tunnelling and Underground Space Association (ITA), a Geneva-based organization dedicated to advancing the tunneling industry.

After inspecting the tunnel as well as the area above it from where the vertical drilling operation will commence, Professor Dix seemed optimistic about the rescue operation. "It is looking good but we have to decide whether it's good or a trap, because it's looking very positive. I have got the best experts for this Himalayan geology here, I'm just one" Professor Dix said.

Dix is working alongside multiple agencies spearheading a comprehensive four-pronged strategy for the rescue mission. Among the methods under consideration is the vertical drilling approach, targeting the tunnel face from above. Dix's expertise spans underground and transportation infrastructure, encompassing construction risks and technical aspects crucial to operational safety. Widely regarded as the foremost authority on underground tunneling, he offers invaluable insights into the associated risks.

Meanwhile, the relentless efforts persist to rescue the 41 workers trapped at the Silkyara tunnel collapse site, now into its ninth day. The Uttarakhand Government and central authorities maintain ongoing communication, striving to uphold the spirits of the laborers confined within the 2 km segment of the tunnel. This section sustains access to electricity and water while provisions like channa, murmure, dry fruits, medicines, and more are delivered to the laborers through a 4-inch compressor pipeline.

Challenges Remain

Despite the progress made, challenges remain in the rescue operation. Rescue workers faced an initial setback when a boulder obstructed the progress of a heavy-duty auger machine, halting horizontal boring through the debris. Additionally, the hilly terrain poses logistical challenges in positioning multiple drilling machines at the designated sites. The construction of motorable roads is required to facilitate the movement of machinery, which is a time-consuming process.

Amidst the challenges, the rescue team remains determined to bring the trapped workers home safely.

The distressing incident, reported on November 12, unfolded as a collapse transpired in the under-construction tunnel stretching from Silkyara to Barkot. The entrapment of 41 workers ensued due to debris falling across a 60-meter expanse on the Silkyara side of the tunnel. Initially, a rapid response was sought through the installation of a 900 mm pipe across the debris, deemed the quickest viable solution. However, by November 17, the escalating ground movements rendered this option unsafe for further pursuit.