BENGALURU (Metro Rail News): The stoppage of regular international flight operations by India is set to hit the start of Metro’s Phase-II tunnelling work. The task of drilling the soil 65 feet below needs Chinese expertise to operate its 4 Tunnel Boring Machines (TBM), senior officials stated.
Where 3 machines have been partially joined with assistance from Chinese engineers, the 4th machine, still need to be placed together.
Director of BMRCL Radhakrishna Reddy said that due to the impact of pandemic drilling work cannot start even after the TBMs are united.
He further added that to start drilling, we will need from Chinese Rail Construction Heavy Industry (CRCHI) experts, the supplier of the machine. The rear division, by the end of June one machine at Cantonment, will be ready.
If India begins international travel engineers can travel here shortly and if not then the tunnelling work will get stopped.
As engineers require to physically run the machine for one kilometre and check it out as there is a warranty on the machines, each of which weighs 450 tonnes & takes Rs 70 car, Giving directions through video conference is not possible, Reddy said.
Four TBMs provided the Sanskrit names of Avni, Urja, Lavi & Vindhya were dispatched from Nov – April to lay the underground rail line of Nagawara to Diary Circle of the Reach-6 Line.
The 2 TBMs at Cantonment would drill toward Shivaji Nagar station. One machine requires to lead 40-50 metres and then we will start the next one, Reddy explained.
When they arrive at the destination, they will be taken through road to Cantonment and drilling will start in the opposite way towards Pottery Town. The deadline of the underground metro line has June 2024.