At about 6:00 am on December 18, the rescue forcessuccessfully drilled a new hole to pump water out after the water levelrose to 1.2 metres in the collapsed section.
Earlier, they installed an air conduit to allow oxygen to pass and communicate with the victims, including one woman.
Through the conduit, they delivered water, milk and soup to theworkers who said they are all in stable health condition but feel verycold due to the rising water level.
In addition toreinforcing the tunnel to avoid possible collapses, the rescuersenlarged the air conduit to ably contain a 70cm-diameter steel pile as away out for the dozen trapped.
The rescue team,including 200 sappers, fight fighters, mine and construction experts andhealth workers, is urgently opening bigger new hoses to provide clothesand food for the victims, said Nguyen Quoc Ky, Vice Chairman of thePeople’s Committee of Lac Duong district.
Rightafter the accident, Minister of Construction Trinh Dinh Dung, Ministerof Industry and Trade Vu Huy Hoang, and Minister of Health Nguyen ThiKim Tien arrived at the scene, pledging all necessary measures to bedeployed to bring the victims out.
Work on the DaDang-Dachomo plant kicked off in 2003. The 475 trillion VND (22.6billion USD) plant, invested by the Civil Engineering Construction Corp.No. 5 (CIENCO 5), is designed to have a capacity of 22 MW.
The collapsed site is about 500 metres from the entrance of the700m-long tunnel running though the mountain to bring water to theplant.
Thirty-two workers were in the tunnel when the collapse occurred and 20 of them were able to escape.-VNA