Rescue personnel engaged in particles elimination, chopping of tunnel boring machine elements in SLBC tunnel close to Domalapenta in Nagarkurnool district on Saturday (March 15, 2025).
| Picture Credit score: By Association

The companies concerned within the rescue operation to hint the remaining seven individuals trapped beneath the particles within the Srisailam Left Financial institution Canal (SLBC) tunnel in Nagarkurnool – which collapsed at the bed-rock end, about 14 km inside from the mouth – have divided the world from loco-end level until final 50 meters into three stretches for higher output.

This, in response to the officers heading the rescue operation, was carried out to hurry up the work because the operation entered 22^nd day on Saturday. A portion of the tunnel collapsed on February 22. From the loco-end level at 13.5 km size, the tunnel was excavated for about 200 meters until the work got here to halt on February 22.

Clearing slush, steel and clearing the location of different particles for about 50-70 meters from the loco-end level until the tail-end of the tunnel boring machine (TBM) would now be dealt with by the personnel from State Catastrophe Response Pressure (SDRF) and HYDRAA (Hyderabad Catastrophe Response and Asset Safety Company), the officers defined.

The following stretch, between the final 50-80 meters and the primary stretch, can be cleared of muck and steel by the SDRF personnel. The final stretch in direction of the tunnel finish that has D1, D2 and P1 websites, the place the Human Stays Detection Canine (HRDD) squad from Kerala and the bottom probing radar (GPR) have detected some human stays, and delicate materials can be dealt with by the miners from Singareni Collieries and Rat Miners from Uttarakhand.

Digging at D1 and D2 websites had already been accomplished for about 14 ft deep (4.2 meters) and it continued additional. 4 mini-excavators had been already engaged within the particles shifting work and one other one was deployed on Saturday (March 15, 2025). All 5 mini-excavators would work following a chain-link methodology in order that the particles being eliminated (dug-up) might be taken until the conveyor belt finish level and out of the tunnel.

The steel elements and different heavy materials was being shifted out of the tunnel with the assistance of loco-trolleys. The HRDDs or canine which may detect cadavers had been despatched into the tunnel once more on Saturday to detect extra factors the place human stays might be discovered.

In the meantime, the Nationwide Centre of Seismology has performed a survey from high of the floor (hillocks positioned at about 400 meters above the tunnel) at at the very least 15 factors and the scientists involved had been anticipated to submit their preliminary findings subsequent week.