Copiapo, Chile (CNN) -- Cheering "Viva Chile," workers early Monday completed the installation of steel tubing to reinforce the path that will be used to bring 33 trapped miners to the surface.
About 96 meters of sheet metal was put in place to line the tunnel bored four-tenths of a mile into the Earth.
The work was the final step before the extraction of the miners can begin, Mining Minister Laurence Golborne said Sunday.
If all goes according to plan, the first of the miners could be pulled from the mine by Wednesday, he said. But the health and safety of the miners remained the top priority, he added.
Given their circumstances, the miners, who have been trapped since August 5, are in "very good" health, Health Minister Jaime Manalich said. Their spirits also remain high, he said.
When he told the miners through video conference that they would have to choose an order to be rescued in, there was no shortage of volunteers to go last, Manalich said.
"They continue to have an admirable attitude," he said.
The last six hours before the rescue starts, the miners will be switched over to a liquid diet and vitamins ahead of their trip to the surface.
The change in diet is one way that officials are trying to mitigate some of the challenges associated with the rescue. These include the loneliness of being in the rescue capsule, and dizziness and panic because the capsule will spin around as it rises, Manalich said.
After the 2,300-foot hole in Chile is secure, materials and equipment will be brought in so that the rescue capsule -- dubbed the Phoenix -- can be lowered into the mine. Then, authorities will lower a doctor and a rescuer into the chamber, Manalich said earlier. Medical and rescue personnel will be in place to start extracting and treating the miners.
CNN
